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1.
Neurol Sci ; 2024 May 25.
Article in English | MEDLINE | ID: mdl-38795273

ABSTRACT

BACKGROUND: While monoclonal antibodies (mAbs) targeting the CGRP pathway have revolutionized migraine management due to their improved tolerance and adherence, concerns remain about their potential impact on blood pressure (BP), especially in older patients, due to CGRP-mediated vasodilation blockade. Given the growing use of these therapies in older populations, assessing their cardiovascular (CV) safety is of paramount importance. METHODS: This multicentric observational prospective study focused on migraine sufferers aged ≥ 60 who began erenumab, galcanezumab, or fremanezumab for prevention. Baseline, three-month, and twelve-month BP measurements were collected. Changes in antihypertensive medication and "Newly or Worsened Hypertensive" patients (NWHP) were assessed. RESULTS: Among 155 patients receiving anti-CGRP mAbs (40 Erenumab, 47 Galcanezumab, 68 Fremanezumab), 42.5% had hypertension history and 39% were on antihypertensive treatment. No significant systolic or diastolic BP changes occurred at any time point compared to baseline (all p > 0.05), with no differences between the three groups. After one year, 20/155 (12.9%) patients were considered NWHP; 11/20 had prior hypertension, and 5/11 adjusted antihypertensive therapy. Among 9/20 newly hypertensive patients, 5/9 had a single measurement above the normal threshold with no requirement for new pharmacological therapy. A higher baseline BP value was associated with increased BP (p = 0.002). CONCLUSIONS: The study concludes that treatment with anti-CGRP mAbs over one year does not significantly affect BP in patients aged ≥ 60, nor does it increase the incidence of hypertension compared to general population trends. Nonetheless, continuous monitoring and further long-term studies are necessary to fullya scertain the cardiovascular safety of these medications in the elderly.

2.
Crit Rev Microbiol ; : 1-21, 2024 Apr 23.
Article in English | MEDLINE | ID: mdl-38651972

ABSTRACT

In early-life, the gut microbiota is highly modifiable, being modulated by external factors such as maternal microbiota, mode of delivery, and feeding strategies. The composition of the child's gut microbiota will deeply impact the development and maturation of its immune system, with consequences for future health. As one of the main sources of microorganisms to the child, the mother represents a crucial factor in the establishment of early-life microbiota, impacting the infant's wellbeing. Recent studies have proposed that dysbiotic maternal gut microbiota could be transmitted to the offspring, influencing the development of its immunity, and leading to the development of diseases such as obesity. This paper aims to review recent findings in gut microbiota and immune system interaction in early-life, highlighting the benefits of a balanced gut microbiota in the regulation of the immune system.

3.
ACS Nano ; 18(14): 10088-10103, 2024 Apr 09.
Article in English | MEDLINE | ID: mdl-38535625

ABSTRACT

Advanced-stage solid primary tumors and metastases often express mucin 16 (MUC16), carrying immature glycans such as the Tn antigen, resulting in specific glycoproteoforms not found in healthy human tissues. This presents a valuable approach for designing targeted therapeutics, including cancer glycovaccines, which could potentially promote antigen recognition and foster the immune response to control disease spread and prevent relapse. In this study, we describe an adjuvant-free poly(lactic-co-glycolic acid) (PLGA)-based nanoglycoantigen delivery approach that outperforms conventional methods by eliminating the need for protein carriers while exhibiting targeted and adjuvant properties. To achieve this, we synthesized a library of MUC16-Tn glycoepitopes through single-pot enzymatic glycosylation, which were then stably engrafted onto the surface of PLGA nanoparticles, generating multivalent constructs that better represent cancer molecular heterogeneity. These glycoconstructs demonstrated affinity for Macrophage Galactose-type Lectin (MGL) receptor, known to be highly expressed by immature antigen-presenting cells, enabling precise targeting of immune cells. Moreover, the glycopeptide-grafted nanovaccine candidate displayed minimal cytotoxicity and induced the activation of dendritic cells in vitro, even in the absence of an adjuvant. In vivo, the formulated nanovaccine candidate was also nontoxic and elicited the production of IgG specifically targeting MUC16 and MUC16-Tn glycoproteoforms in cancer cells and tumors, offering potential for precise cancer targeting, including targeted immunotherapies.


Subject(s)
Nanoparticles , Neoplasms , Humans , Lectins/metabolism , Glycosylation , Glycopeptides/metabolism , Neoplasms/therapy , Neoplasms/metabolism , Immunotherapy/methods , Dendritic Cells
4.
High Blood Press Cardiovasc Prev ; 31(1): 65-76, 2024 Jan.
Article in English | MEDLINE | ID: mdl-38308805

ABSTRACT

INTRODUCTION: Coffee is a complex brew that contains several bioactive compounds and some of them can influence blood pressure (BP) and endothelial function (EF), such as caffeine and chlorogenic acids (CGAs). AIM: This study aimed to evaluate the acute effects of coffee on BP and EF in individuals with hypertension on drug treatment who were habitual coffee consumers. METHODS: This randomized crossover trial assigned 16 adults with hypertension to receive three test beverages one week apart: caffeinated coffee (CC; 135 mg caffeine, 61 mg CGAs), decaffeinated coffee (DC; 5 mg caffeine, 68 mg CGAs), and water. BP was continuously evaluated from 15 min before to 90 min after test beverages by digital photoplethysmography. Reactive hyperemia index (RHI) assessed by peripheral arterial tonometry evaluated EF before and at 90 min after test beverages. At the same time points, microvascular reactivity was assessed by laser speckle contrast imaging. Repeated-measures-ANOVA evaluated the effect of time, the effect of beverage, and the interaction between time and beverage (treatment effect). RESULTS: Although the intake of CC produced a significant increase in BP and a significant decrease in RHI, these changes were also observed after the intake of DC and were not significantly different from the modifications observed after the consumption of DC and water. Microvascular reactivity did not present significant changes after the 3 beverages. CONCLUSION: CC in comparison with DC and water neither promoted an acute increase in BP nor produced an improvement or deleterious effect on EF in individuals with hypertension on drug treatment who were coffee consumers.


Subject(s)
Coffee , Hypertension , Adult , Humans , Coffee/adverse effects , Caffeine/adverse effects , Blood Pressure , Antihypertensive Agents/adverse effects , Cross-Over Studies , Hypertension/diagnosis , Hypertension/drug therapy , Water/pharmacology , Nucleotidyltransferases/pharmacology
5.
J Control Release ; 367: 540-556, 2024 Mar.
Article in English | MEDLINE | ID: mdl-38301927

ABSTRACT

Cancer presents a high mortality rate due to ineffective treatments and tumour relapse with progression. Cancer vaccines hold tremendous potential due to their capability to eradicate tumour and prevent relapse. In this study, we present a novel glycovaccine for precise targeting and immunotherapy of aggressive solid tumours that overexpress CD44 standard isoform (CD44s) carrying immature Tn and sialyl-Tn (sTn) O-glycans. We describe an enzymatic method and an enrichment strategy to generate libraries of well-characterized cancer-specific CD44s-Tn and/or sTn glycoproteoforms, which mimic the heterogeneity found in tumours. We conjugated CD44-Tn-derived glycopeptides with carrier proteins making them more immunogenic, with further demonstration of the importance of this conjugation to overcome the glycopeptides' intrinsic toxicity. We have optimized the glycopeptide-protein maleimide-thiol conjugation chemistry to avoid undesirable cross-linking between carrier proteins and CD44s glycopeptides. The resulting glycovaccines candidates were well-tolerated in vivo, inducing both humoral and cellular immunity, including immunological memory. The generated antibodies exhibited specific reactivity against synthetic CD44s-Tn glycopeptides, CD44s-Tn glycoengineered cells, and human tumours. In summary, we present a promising prototype of a cancer glycovaccine for future therapeutical pre-clinical efficacy validation.


Subject(s)
Cancer Vaccines , Neoplasms , Humans , Vaccines, Combined , Antigens, Tumor-Associated, Carbohydrate/chemistry , Glycoconjugates , Neoplasms/therapy , Immunotherapy , Glycopeptides/chemistry , Carrier Proteins , Recurrence , Hyaluronan Receptors
6.
Neurol Sci ; 45(4): 1645-1654, 2024 Apr.
Article in English | MEDLINE | ID: mdl-37936018

ABSTRACT

BACKGROUND: While migraine is markedly prevalent in women, gender-related phenotype differences were rarely assessed. For this reason, we investigated, through a multicenter observational cross-sectional study, based on an online questionnaire, gender-related differences in stress factors, emotions, and pain perception in migraine patients and controls and their impact on migraine severity. METHODS: The study was designed as an online questionnaire. The link was emailed to healthy subjects (C) and migraine patients (MIG) (age 18-75, education ≥ 13 years) recruited during the first visit in 8 Italian Headache Centers adhering to Italian Society for Headache Study (SISC). The questionnaire included personal/social/work information, the Perceived Stress Scale, the Romance Quality Scale, the Emotion Regulation Questionnaire, the Beck Anxiety Inventory, the Body Perception Questionnaire, the pain perception, and a self-assessment of migraine severity in the last 3 months. RESULTS: 202 MIG and 202 C completed the survey. Independently from gender, migraine was characterized by higher pain sensitivity and more severe partner relationships. The female gender, in MIG, exhibited higher anxiety scores, body awareness, and reduced emotional suppression. Body awareness and emotional suppression were discriminating factors between genders in control and migraine groups without relevant influence on disease features. Perceived perception of migraine severity was similar between genders. CONCLUSION: Gender-related emotional and stress factors did not contribute to delineate a distinct phenotype in migraine men and women. The possible impact of emotional and stress factors characterizing genders could be considered for a single case-tailored therapeutic approach.


Subject(s)
Migraine Disorders , Psychological Tests , Self Report , Adult , Aged , Female , Humans , Male , Middle Aged , Young Adult , Cross-Sectional Studies , Emotions , Headache , Migraine Disorders/psychology , Pain Perception , Surveys and Questionnaires
7.
Neurol Sci ; 45(4): 1661-1668, 2024 Apr.
Article in English | MEDLINE | ID: mdl-37926748

ABSTRACT

OBJECTIVE: To explore the rate of hypertension incoming in patients treated with monoclonal antibodies against the calcitonin gene-related peptide. BACKGROUND: The monoclonal antibodies blocking the calcitonin gene-related peptide are unquestionable effective in the prevention of migraine. Despite this, the development of hypertension has been detected in some patients. METHODS: This was a retrospective study conducted at the University Hospital of Modena. Patients were visited quarterly up to 1 year. RESULTS: Globally, no significant increase in the blood pressure was detected. The 5.7% of the patients developed a significant increase in their blood pressure. In particular, patients with a pre-existing hypertension were more likely to have a significant increase in the blood pressure. CONCLUSION: The risk of developing hypertension during a treatment with anti-calcitonin gene-related peptide monoclonal antibodies seems low. Anyway, patients with a pre-existing hypertension should be cautiously monitored because they are more likely to develop hypertension.


Subject(s)
Antibodies, Monoclonal , Hypertension , Humans , Antibodies, Monoclonal/adverse effects , Calcitonin Gene-Related Peptide , Retrospective Studies , Calcitonin Gene-Related Peptide Receptor Antagonists/therapeutic use , Hypertension/drug therapy , Hypertension/epidemiology
8.
Rev. Pesqui. (Univ. Fed. Estado Rio J., Online) ; 16: e12206, jan.-dez. 2024. ilus
Article in English, Portuguese | LILACS, BDENF - Nursing | ID: biblio-1526132

ABSTRACT

Objetivo: identificar estudos na literatura nacional e internacional acerca do brincar no hospital na perspectiva do familiar da criança. Método: revisão Integrativa realizada no período de março a maio de 2022, nas fontes de informações: Scielo; LILACS e BDENF via BVS; MEDLINE via PUBMED; Scopus e o Google Scholar como estratégia adicional. Foram incluídos artigos originais, nos idiomas inglês, português e espanhol; sem recorte temporal; e que tivessem como participantes familiares e/ou acompanhantes de crianças hospitalizadas. Resultados: as famílias reconhecem o brincar como promotor na redução da ansiedade das crianças frente aos procedimentos invasivos, além de auxiliar no enfrentamento da hospitalização e na melhora do humor e comportamento delas. Também destacaram a brinquedoteca hospitalar como um importante espaço que promove distração e continuidade do desenvolvimento. Conclusão: a partir da perspectiva dos familiares acerca do brincar, a equipe de enfermagem deve incentiva-las serem coparticipante dessa atividade durante a hospitalização da criança.


Objective: to identify studies in the national and international literature about playing in the hospital from the perspective of the child's family. Method: integrative review carried out from March to May 2022, in the information sources: Scielo; LILACS and BDENF via VHL; MEDLINE via PUBMED; Scopus and Google Scholar as an additional strategy. Original articles in English, Portuguese and Spanish were included; no temporal clipping; and that had family members and/or companions of hospitalized children as participants. Results: families recognize playing as a promoter in reducing children's anxiety in the face of invasive procedures, as well as helping to cope with hospitalization and improving their mood and behavior. They also highlighted the hospital toy library as an important space that promotes distraction and continuity of development. Conclusion: from the perspective of family members about playing, the nursing team should encourage them to be a co-participant in this activity during the child's hospitalization.


Objetivos:identificar estudios en la literatura nacional e internacional sobre el juego en el hospital desde la perspectiva de la familia del niño. Método: revisión integradora realizada de marzo a mayo de 2022, en las fuentes de información: Scielo; LILACS y BDENF vía BVS; MEDLINE vía PUBMED; Scopus y Google Scholar como estrategia adicional. Se incluyeron artículos originales en inglés, portugués y español; sin recorte temporal; y que tuvo como participantes a familiares y/o acompañantes de niños hospitalizados. Resultados: las familias reconocen jugar como un promotor en la reducción de la ansiedad de los niños frente a los procedimientos invasivos, además de ayudar a sobrellevar la hospitalización y mejorar su estado de ánimo y comportamiento. También destacaron la ludoteca del hospital como un espacio importante que promueve la distracción y la continuidad del desarrollo. Conclusión: desde la perspectiva de los familiares sobre el juego, el equipo de enfermería debe incentivarlos a ser copartícipes de esa actividad durante la hospitalización del niño.


Subject(s)
Humans , Male , Female , Child
9.
CNS Drugs ; 37(12): 1069-1080, 2023 12.
Article in English | MEDLINE | ID: mdl-37999868

ABSTRACT

BACKGROUND: Real-world studies on fremanezumab, an anti-calcitonin gene-related peptide monoclonal antibody for migraine prevention, are few and with limited follow-up. OBJECTIVE: We aimed to evaluate the long-term (up to 52 weeks) effectiveness and tolerability of fremanezumab in high-frequency episodic migraine and chronic migraine. METHODS: This s an independent, prospective, multicenter cohort study enrolling outpatients in 17 Italian Headache Centers with high-frequency episodic migraine or chronic migraine and multiple preventive treatment failures. Patients were treated with fremanezumab 225 mg monthly. The primary outcomes included changes from baseline (1 month before treatment) in monthly headache days, response rates (reduction in monthly headache days from baseline), and persistence in medication overuse at months 3, 6, and 12 (all outcome timeframes refer to the stated month). Secondary outcomes included changes from baseline in acute medication intake and disability questionnaires scores at the same timepoints. A last observation carried forward analysis was also performed. RESULTS: A total of 90 patients who received at least one dose of fremanezumab and with a potential 12-month follow-up were included. Among them, 15 (18.0%) patients discontinued treatment for the entire population, a reduction in monthly headache days compared with baseline was reported at month 3, with a significant median [interquartile range] reduction in monthly headache days (- 9.0 [11.5], p < 0.001). A statistically different reduction was also reported at month 6 compared with baseline (- 10.0 [12.0]; p < 0.001) and at 12 months of treatment (- 10.0 [14.0]; p < 0.001). The percentage of patients with medication overuse was significantly reduced compared with baseline from 68.7% (57/83) to 29.6% (24/81), 25.3% (19/75), and 14.7% (10/68) at 3, 6, and 12 months of treatment, respectively (p < 0.001). Acute medication use (days and total number) and disability scores were also significantly reduced (p < 0.001). A ≥ 50% response rate was achieved for 51.9, 67.9, and 76.5% of all patients at 3, 6, and 12 months, respectively. Last observation carried forward analyses confirmed these findings. Fremanezumab was well tolerated, with just one patient discontinuing treatment because of adverse events. CONCLUSIONS: This study provides evidence for the real-world effectiveness of fremanezumab in treating both high-frequency episodic migraine and chronic migraine, with meaningful and sustained improvements in multiple migraine-related variables. No new safety issue was identified.


Subject(s)
Migraine Disorders , Prescription Drug Overuse , Humans , Cohort Studies , Prospective Studies , Treatment Outcome , Double-Blind Method , Migraine Disorders/drug therapy , Antibodies, Monoclonal/adverse effects , Headache/drug therapy
10.
J Nanobiotechnology ; 21(1): 357, 2023 Oct 02.
Article in English | MEDLINE | ID: mdl-37784150

ABSTRACT

Colorectal cancer (CRC) is one of the deadliest cancers worldwide, with the 5 year survival rate in metastatic cases limited to 12%. The design of targeted and effective therapeutics remains a major unmet clinical need in CRC treatment. Carcinoembryonic antigen (CEA), a glycoprotein overexpressed in most colorectal tumors, may constitute a promising molecule for generating novel CEA-targeted therapeutic strategies for CRC treatment. Here, we developed a smart nanoplatform based on chemical conjugation of an anti-CEA single-chain variable fragment (scFv), MFE-23, with PLGA-PEG polymers to deliver the standard 5-Fluorouracil (5-FU) chemotherapy to CRC cells. We confirmed the specificity of the developed CEA-targeted NPs on the internalization by CEA-expressing CRC cells, with an enhance of threefold in the cell uptake. Additionally, CEA-targeted NPs loaded with 5-FU induced higher cytotoxicity in CEA-expressing cells, after 24 h and 48 h of treatment, reinforcing the specificity of the targeted NPs. Lastly, the safety of CEA-targeted NPs loaded with 5-FU was evaluated in donor-isolated macrophages, with no relevant impact on their metabolic activity nor polarization. Altogether, this proof of concept supports the CEA-mediated internalization of targeted NPs as a promising chemotherapeutic strategy for further investigation in different CEA-associated cancers and respective metastatic sites.Authors: Please confirm if the author names are presented accurately and in the correct sequence (given name, middle name/initial, family name). Author 1 Given name: [Maria José] Last name [Silveira]. Author 7 Given name: [Maria José] Last name [Oliveira]. Also, kindly confirm the details in the metadata are correctokAffiliations: Please check and confirm that the authors and their respective affiliations have been correctly identified and amend if necessary.ok.


Subject(s)
Colorectal Neoplasms , Nanoparticles , Single-Chain Antibodies , Humans , Carcinoembryonic Antigen/metabolism , Single-Chain Antibodies/therapeutic use , Fluorouracil/pharmacology , Fluorouracil/therapeutic use , Colorectal Neoplasms/metabolism , Nanoparticles/chemistry
11.
Eur J Pharm Sci ; 190: 106560, 2023 Nov 01.
Article in English | MEDLINE | ID: mdl-37557927

ABSTRACT

Most of the 3D breast tumor models used in drug screening studies only comprise tumor cells, keeping out other essential cell players of the tumor microenvironment. Tumor-associated macrophages and fibroblasts are frequently correlated with tumor progression and therapy resistance, and targeting these cells at the tumor site has been appointed as a promising therapeutic strategy. However, the translation of new therapies to the clinic has been hampered by the absence of cellular models that more closely mimic the features of in vivo breast tumor microenvironment. Therefore, the development of innovative 3D models able to provide consistent and predictive responses about the in vivo efficacy of novel therapeutics is still an unmet preclinical need. Herein, we have established an in vitro 3D heterotypic spheroid model including MCF-7 breast tumor cells, human mammary fibroblasts and human macrophages. To establish this model, different cell densities have been combined and characterized through the evaluation of the spheroid size and metabolic activity, as well as histological and immunohistochemistry analysis of the 3D multicellular structures. The final optimized 3D model consisted in a multicellular spheroid seeded at the initial density of 5000 cells and cell ratio of 1:2:1 (MCF-7:monocytes:fibroblasts). Our model recapitulates several features of the breast tumor microenvironment, including the formation of a necrotic core, spatial organization, and extracellular matrix production. Further, it was validated as a platform for drug screening studies, using paclitaxel, a currently approved drug for breast cancer treatment, and Gefitinib, a chemotherapeutic approved for lung cancer and in preclinical evaluation for breast cancer. Generally, the impact on the cell viability of the 3D model was less evident than in 2D model, reinforcing the relevance of such complex 3D models in addressing novel treatment approaches. Overall, the use of a 3D heterotypic spheroid of breast cancer could be a valuable tool to predict the therapeutic effect of new treatments for breast cancer patients, by recapitulating key features of the breast cancer microenvironment.

13.
Brain Behav ; 13(6): e2799, 2023 06.
Article in English | MEDLINE | ID: mdl-37208838

ABSTRACT

BACKGROUND: Galcanezumab is a monoclonal antibody acting against the calcitonin gene-related peptide approved for the preventive treatment of migraine. The aim of this article is to explore its effectiveness and safety of galcanezumab in chronic migraine (CM) with medication overuse-headache (MOH). METHODS: Seventy-eight patients were consecutively enrolled at the Modena headache center and followed up for 15 months. Visits were scheduled every 3 months, and the following variables were collected: the number of migraine days per month (MDM); the painkillers taken per month (PM); the number of days per month in which the patient took, at least, one painkiller; the six-item headache impact test; and the migraine disability assessment questionnaire (MIDAS) score. Demographic features of the analyzed sample were collected at the baseline and adverse events (AEs) were collected at every visit. RESULTS: After 12 months, galcanezumab significantly reduced the MDM, the PM, the number of days on medication, the HIT-6 as well as the MIDAS scores (all p < .0001). The greatest amelioration was obtained in the first trimester of treatment. A higher MDM, a higher NRS score at the baseline, and a higher number of failed preventive treatments negatively predict the CM relief at the year of treatment. No serious AEs were registered and only one drop-out was due to AE. CONCLUSIONS: Galcanezumab is effective and safe for the treatment of patients affected by CM and MOH. Patients with a higher impairment at the baseline may found less benefits with galcanezumab.


Subject(s)
Headache Disorders, Secondary , Migraine Disorders , Humans , Treatment Outcome , Double-Blind Method , Migraine Disorders/drug therapy , Migraine Disorders/prevention & control , Headache , Headache Disorders, Secondary/drug therapy
14.
Acta Neurol Belg ; 123(3): 1039-1047, 2023 Jun.
Article in English | MEDLINE | ID: mdl-36867346

ABSTRACT

INTRODUCTION: Migraine usually ameliorates after menopause. However, 10-29% of women still experience migraine attacks after menopause, especially if menopause is surgical. The use of monoclonal antibodies against the calcitonin gene-related peptide (CGRP) is changing the landscape of migraine treatment. This study aims to explore the effectiveness and safety of anti-CGRP monoclonal antibodies in women in menopause. METHODS: Women affected by either migraine or chronic migraine and treated with an anti-CGRP monoclonal antibody for up to 1 year. Visits were scheduled every 3 months. RESULTS: Women in menopause displayed a similar response compared to women of childbearing age. Among women in menopause, the women experiencing surgical menopause seemed to exhibit a similar response compared to the ones experiencing physiological menopause. Erenumab and galcanezumab displayed similar effectiveness in women in menopause. No serious adverse events were registered. DISCUSSION: The effectiveness of anti-CGRP monoclonal antibodies is almost the same between women in menopause and women of childbearing age, without appreciable differences between the different antibodies.


Subject(s)
Calcitonin Gene-Related Peptide , Migraine Disorders , Humans , Female , Postmenopause , Antibodies, Monoclonal/therapeutic use , Migraine Disorders/drug therapy , Migraine Disorders/chemically induced
15.
Int J Pharm ; 636: 122866, 2023 Apr 05.
Article in English | MEDLINE | ID: mdl-36934882

ABSTRACT

Breast cancer is the most commonly diagnosed type of cancer among the female population worldwide. It is a disease with a high incidence and geographic distribution that negatively impacts global public health and deleteriously affect the quality of life of cancer patients. Among the new approaches, cancer immunotherapy is the most promising trend in oncology by stimulating the host's own immune system to efficiently destroy cancer cells. Recent evidence has indicated that iron oxide nanoparticles can promote the reprograming of M2 into M1 macrophages with anti-tumor effects in the tumor microenvironment. Thus, the aim of the present work was to evaluate the ability of polyaniline-coated maghemite (Pani/γ-Fe2O3) nanoparticles to modulate human macrophages in 2D monolayers and 3D multicellular breast cancer models. It was observed that Pani/γ-Fe2O3 NPs re-educated IL-10-stimulated macrophages towards a pro-inflammatory profile, decreasing the proportion of CD163+ and increasing the CD86+ proportion in 2D models. NPs were successfully taken-up by macrophages presented in the 3D model and were also able to induce an increasing in their CD86+ proportion in triple MCTs model. Overall, our findings open new perspectives on the use of Pani/γ-Fe2O3 NPs as an immunomodulatory therapy for macrophage reprogramming towards an anti-tumor M1 phenotype, providing a new tool for breast cancer immunotherapies.


Subject(s)
Breast Neoplasms , Nanoparticles , Humans , Female , Breast Neoplasms/therapy , Breast Neoplasms/pathology , Tumor-Associated Macrophages/pathology , Quality of Life , Magnetic Iron Oxide Nanoparticles , Tumor Microenvironment
16.
Small ; : e2300666, 2023 Mar 28.
Article in English | MEDLINE | ID: mdl-36978237

ABSTRACT

Breast cancer appears as the major cause of cancer-related deaths in women, with more than 2 260 000 cases reported worldwide in 2020, resulting in 684 996 deaths. Triple-negative breast cancer (TNBC), characterized by the absence of estrogen, progesterone, and human epidermal growth factor type 2 receptors, represents ≈20% of all breast cancers. TNBC has a highly aggressive clinical course and is more prevalent in younger women. The standard therapy for advanced TNBC is chemotherapy, but responses are often short-lived, with high rate of relapse. The lack of therapeutic targets and the limited therapeutic options confer to individuals suffering from TNBC the poorest prognosis among breast cancer patients, remaining a major clinical challenge. In recent years, advances in cancer nanomedicine provided innovative therapeutic options, as nanoformulations play an important role in overcoming the shortcomings left by conventional therapies: payload degradation and its low solubility, stability, and circulating half-life, and difficulties regarding biodistribution due to physiological and biological barriers. In this integrative review, the recent advances in the nanomedicine field for TNBC treatment, including the novel nanoparticle-, exosome-, and hybrid-based therapeutic formulations are summarized and their drawbacks and challenges are discussed for future clinical applications.

17.
Quad. psicol. (Bellaterra, Internet) ; 25(1): e1805, 06-03-2023. tab, graf
Article in Portuguese | IBECS | ID: ibc-216855

ABSTRACT

Pacientes com Transtorno de personalidade borderline(TPB) possuem características relacio-nais disfuncionais que impactam seus relacionamentos interpessoais. O objetivo foi o de des-crever os padrões relacionais de conflito de uma paciente com TPB da psicoterapia psicodinâ-mica. Trata-se de um estudo de caso sistemático. Utilizou-se o método Tema Central de Confli-to nos Relacionamentos (CCRT). Juízes independentes analisaram as gravações e transcrições das sessões do tratamento. A análise foi realizada com base na frequência dos componentes do CCRT. Os resultados indicam que o conflito central da paciente se mantém o mesmo ao longo do tempo, assim como seu desejo principal, mas háuma mudança significativa nas respostas, ou seja, na forma como a paciente interage em seus relacionamentos, apresentando maior fle-xibilidade para lidar com os outros e os percebendo mais positivamente. O estudo fornece sub-sídios aos psicoterapeutas para identificar e trabalhar o padrão de relacionamento disfuncional de pacientes com TPB. (AU)


Patients with borderline personality disorder (BPD) have dysfunctional relational characteris-tics that impact their interpersonal relationships. The aim of this study was to describe the conflicting relational patterns of a BPD patient of psychodynamic psychotherapy. This is a sys-tematic case study. Core Conflictual Relationship Theme —CCRT method was used to identify in relationship episodes the components of the central conflict. Independent judges reviewed the recordings and transcripts of the initial sessions of treatment and the final sessions of each year of treatment. The analysis was performed based on the frequency of CCRT compo-nents. The results indicate that the patient’s core conflict remains thesame over time, as does her core desire, but there is a significant change in the way the patient interacts in her relationships. As a clinical contribution, the study provides support to psychotherapists to identify and work on the central pattern of dysfunctional relationships of patients with BPD. (AU)


Subject(s)
Humans , Female , Adolescent , Young Adult , Interpersonal Relations , Borderline Personality Disorder/psychology , Borderline Personality Disorder/therapy , Psychotherapy, Psychodynamic/methods
18.
Toxins (Basel) ; 15(1)2023 01 10.
Article in English | MEDLINE | ID: mdl-36668879

ABSTRACT

OnabotulinumtoxinA (BT-A) is one of the few drugs approved for the preventive treatment of chronic migraine (CM). Despite this, some aspects of its mechanism of action are still a matter of debate, and the precise magnitude of BT-A effects needs to be completely elucidated. BT-A acts primarily upon trigeminal and cervical nerve endings, by inhibiting the release of inflammatory mediators such as calcitonin gene-related peptide, as well as reducing the insertion of ionotropic and metabotropic receptors into the neuronal membrane. These actions increase the depolarization threshold of trigeminal and cervical nerve fibers, thus reducing their activation. The central actions of BT-A are still a matter of debate: a retrograde axonal transport has been postulated, but not clearly assessed in humans. Clinically, the efficacy of BT-A in CM has been assessed by large, randomized placebo-controlled trials, such as the Phase 3 REsearch Evaluating Migraine Prophylaxis Therapy (PREEMPT) trials. Those results were also confirmed in a wide range of open-label studies, even for long-term periods. Recently, novel findings have led to a better understanding of its pharmacological actions and clinical usefulness in migraine prevention. This narrative review summarizes, updates and critically revises the available data on BT-A and its possible implementation in chronic migraine. Moreover, the current role of BT-A in CM treatment has been discussed.


Subject(s)
Botulinum Toxins, Type A , Migraine Disorders , Humans , Botulinum Toxins, Type A/therapeutic use , Treatment Outcome , Chronic Disease , Migraine Disorders/drug therapy , Migraine Disorders/prevention & control , Calcitonin Gene-Related Peptide
19.
J Control Release ; 349: 731-743, 2022 09.
Article in English | MEDLINE | ID: mdl-35905784

ABSTRACT

Colorectal cancer (CRC) is a heterogeneous disease with high incidence and mortality worldwide. The efficacy of conventional CRC chemotherapy is hampered by poor drug solubility and bioavailability and suboptimal pharmacokinetic profiles. In this work, camptothecin (CPT), a potent anticancer drug, was loaded into an amphiphilic chitosan modified with PEG and oleic acid, to reduce CRC progression after oral administration. While CPT-loaded micelles presented anticancer activity against HCT116, Caco-2 and HT29 CRC cell lines in vitro, empty micelles demonstrated a safe profile when incubated with human blood cells and colorectal cancer cell lines. In a more complex 3D CRC multicellular spheroid model, CPT-loaded micelles also exhibited a significant effect on the spheroid's metabolic activity and size reduction. Remarkably, in vivo studies performed in a HCT116 xenograft model, showed a significant reduction on the tumor growth during and after treatment with CPT-loaded micelles. Moreover, in a more biological relevant in vivo model of chemically-induced CRC, orally administered CPT-loaded micelles demonstrated a significant reduction on tumor incidence and inflammation signs. The findings here reported indicate that CPT-loaded into chitosan-based micelles, by improving drug solubility, alongside its safety profile for normal tissues, may have a promising role CRC chemotherapy.


Subject(s)
Antineoplastic Agents, Phytogenic , Antineoplastic Agents , Chitosan , Colorectal Neoplasms , Antineoplastic Agents/therapeutic use , Caco-2 Cells , Camptothecin , Cell Line, Tumor , Chitosan/therapeutic use , Colorectal Neoplasms/pathology , Drug Carriers/therapeutic use , Humans , Micelles , Oleic Acid
20.
J Clin Med ; 11(6)2022 Mar 08.
Article in English | MEDLINE | ID: mdl-35329806

ABSTRACT

The endocannabinoid system (ECS) influences many biological functions, and hence, its pharmacological modulation may be useful for several disorders, such as migraine. Preclinical studies have demonstrated that the ECS is involved in the modulation of trigeminal excitability. Additionally, clinical data have suggested that an endocannabinoid deficiency is associated with migraine. Given these data, phytocannabinoids, as well as synthetic cannabinoids, have been tried as migraine treatments. In this narrative review, the current clinical evidence of potential ECS involvement in migraine pathogenesis is summarized. Furthermore, studies exploring the clinical effects of phytocannabinoids and synthetic cannabinoids on migraine patients are reviewed.

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