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1.
Bol. latinoam. Caribe plantas med. aromát ; 23(4): 577-607, jul. 2024. ilus, graf, tab
Artigo em Espanhol | LILACS | ID: biblio-1538069

RESUMO

El presente estudio es una comparación del dolor abdominal producido por trastornos gastrointestinales, aliviado por Ageratina ligustrina , entre los grupos maya Tzeltal, Tzotzil y Q ́eqchi ́, el cual integró un enfoque etnomédico, etnobotánico y transcultural, comparando estudios previos con el presente trabajo de campo. Para evaluar la eficacia de Ageratina para aliviar el dolor abdominal, se realizó un inventario de las moléculas reportadas en esta especie, así como de su actividad farmacológica, a través de una revisión bibliográfica. Los resultados mostraron que la epidemiología del dolor producido por TGI, su etnobotánica y el modelo explicativo del dolor abdominal fueron similares entre grupos étnicos. Asimismo, se identificaron 27 moléculas con efectos antiinflamatorios y antinociceptivos, lo que podría explicar por qué esta especie es culturalmente importante para los pobladores maya Tzeltal, Tzotzil y Q ́eqch i ́ para el alivio del dolor abdominal, mientras que, desde el punto de vista biomédico, es una especie con potencial para inhibir el dolor visceral.


The current study is a comparison of the abdominal pain conception produced by gastrointestinal disorders, relieved by Ageratina ligustrina , among inhabitants of the Mayan Tzeltal, Tzotzil, and Q'eqchi' groups ethnomedical, ethnobotanical, and cross -cultural approaches were used to compare previous studies with the present field work. To evaluate the efficacy of A. ligustrina to relieve pain, also through a bibliographic review an inventory of the molecules present in this species was performed, as well as their pharmacological activity. The results showed that the epidemiology of pain produced by GID, its ethnobotany, and the explanatory model of abdominal pain are similar among ethnic groups. Likewise, 27 molecules with anti-inflammatory and anti-nociceptive effects were identified, which could explain why this species is culturally important for the Mayan Tzeltal, Tzotzil, and Q'eqchi' groups for the relief of abdominal pain, while, from a biomedical point of view, it is a species with potential to inhibit visceral pain.


Assuntos
Extratos Vegetais/uso terapêutico , Dor Abdominal/tratamento farmacológico , Ageratina , Etnobotânica , Gastroenteropatias/tratamento farmacológico , México
2.
Eur. j. psychiatry ; 38(2): [100229], Apr.-Jun. 2024.
Artigo em Inglês | IBECS | ID: ibc-231864

RESUMO

Background and objectives Alterations in the molecular mechanisms of specific amino acids (AAs) may be implicated in the pathophysiology of schizophrenia (SZ). However, little is known about antipsychotic drugs influence on levels of AAs. This study aimed to further explore antipsychotics' effects on AAs and serum lipid levels in first-episode SZ. Methods Eighty subjects with the International Classification of Diseases, Tenth Edition (ICD-10) criteria-defined SZ were enrolled. The levels of 31 AAs were measured in plasma samples using ultra performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS). Results Ten AAs (i.e., citrulline, sarcosine, tyrosine, leucine, proline, hydroxyproline, kynurenine, tryptophan, valine and isoleucine) were observed to be higher and three AAs (i.e., GABA, aminobutyric acid and asparaginic acid) were lower in 80 patients with first-episode SZ after various antipsychotics treatment. In addition, there were 1 out of 31 AAs altered after olanzapine treatment and there were only 2 out of 31 AAs altered after risperidone treatment. Furthermore, serum triglyceride (TG) was markedly upregulated after olanzapine treatment, while Apolipoprotein A1 (ApoA1) was generally upregulated after risperidone treatment in patients with first-episode SZ. Conclusions Taken together, antipsychotic treatment can affect the plasma levels of AAs in patients with first-episode SZ, and olanzapine and risperidone have differential effects on the levels of AAs. (AU)


Assuntos
Humanos , Masculino , Feminino , Adolescente , Adulto Jovem , Adulto , Pessoa de Meia-Idade , Idoso , Antipsicóticos/uso terapêutico , Aminoácidos , Esquizofrenia/tratamento farmacológico , Estudos Prospectivos
8.
Adv Rheumatol ; 64(1): 46, 2024 Jun 07.
Artigo em Inglês | MEDLINE | ID: mdl-38849923

RESUMO

BACKGROUND: Fibroblast-like synoviocytes (FLSs) are involved in osteoarthritis (OA) pathogenesis through pro-inflammatory cytokine production. TAK-242, a TLR4 blocker, has been found to have a significant impact on the gene expression profile of pro-inflammatory cytokines such as IL1-ß, IL-6, TNF-α, and TLR4, as well as the phosphorylation of Ikßα, a regulator of the NF-κB signaling pathway, in OA-FLSs. This study aims to investigate this effect because TLR4 plays a crucial role in inflammatory responses. MATERIALS AND METHODS: Ten OA patients' synovial tissues were acquired, and isolated FLSs were cultured in DMEM in order to assess the effectiveness of TAK-242. The treated FLSs with TAK-242 and Lipopolysaccharides (LPS) were analyzed for the mRNA expression level of IL1-ß, IL-6, TNF-α, and TLR4 levels by Real-Time PCR. Besides, we used western blot to assess the protein levels of Ikßα and pIkßα. RESULTS: The results represented that TAK-242 effectively suppressed the gene expression of inflammatory cytokines IL1-ß, IL-6, TNF-α, and TLR4 which were overexpressed upon LPS treatment. Additionally, TAK-242 inhibited the phosphorylation of Ikßα which was increased by LPS treatment. CONCLUSION: According to our results, TAK-242 shows promising inhibitory effects on TLR4-mediated inflammatory responses in OA-FLSs by targeting the NF-κB pathway. TLR4 inhibitors, such as TAK-242, may be useful therapeutic agents to reduce inflammation and its associated complications in OA patients, since traditional and biological treatments may not be adequate for all of them.


Assuntos
Citocinas , Interleucina-1beta , Interleucina-6 , Lipopolissacarídeos , NF-kappa B , Transdução de Sinais , Sulfonamidas , Sinoviócitos , Receptor 4 Toll-Like , Fator de Necrose Tumoral alfa , Humanos , Transdução de Sinais/efeitos dos fármacos , Sinoviócitos/efeitos dos fármacos , Sinoviócitos/metabolismo , NF-kappa B/metabolismo , Sulfonamidas/farmacologia , Sulfonamidas/uso terapêutico , Receptor 4 Toll-Like/metabolismo , Citocinas/metabolismo , Interleucina-6/metabolismo , Interleucina-1beta/metabolismo , Fator de Necrose Tumoral alfa/metabolismo , Lipopolissacarídeos/farmacologia , Fibroblastos/metabolismo , Fibroblastos/efeitos dos fármacos , Osteoartrite/metabolismo , Osteoartrite/tratamento farmacológico , Células Cultivadas , Fosforilação , RNA Mensageiro/metabolismo , Masculino , Feminino , Pessoa de Meia-Idade
9.
Rev Med Virol ; 34(4): e2551, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38849982

RESUMO

This systematic review and meta-analysis aimed to compare the effectiveness and safety of azvudine versus nirmatrelvir/ritonavir (Paxlovid) in treating coronavirus disease 2019 (COVID-19). The researchers conducted searches on PubMed, Cochrane Library, Web of Science, medRxiv, and Google Scholar until January 2024. The Cochrane risk of bias tool was utilised to evaluate the quality of the included studies, and data analysis was performed using Comprehensive Meta-Analysis software. Thirteen studies, including 4949 patients, were analysed. The meta-analysis results showed no significant difference between the azvudine and Paxlovid groups in terms of mortality rate (odds rate [OR] = 0.84, 95% confidence interval [CI]: 0.59-1.21), negative polymerase chain reaction (PCR) conversion time (standard mean difference [SMD] = 1.52, 95% CI: -1.07-4.11), and hospital stay (SMD = -0.39, 95% CI: -1.12-0.33). However, a significant difference was observed between the two groups in terms of intensive care unit admission (OR = 0.42, 95% CI: 0.23-0.75) and the need for mechanical ventilation (OR = 0.61, 95% CI: 0.44-0.86) in favour of azvudine. The incidence of adverse events in the azvudine group was significantly lower (OR = 0.66, 95% CI: 0.43-0.99). The certainty of evidence was rated as low and moderate. Azvudine and Paxlovid demonstrated similar effectiveness in reducing mortality rates, negative PCR conversion time and hospital stay. However, azvudine showed better effectiveness in improving other outcomes. Regarding the level of certainty of evidence, further research is needed to validate or challenge these results.


Assuntos
Antivirais , Tratamento Farmacológico da COVID-19 , Combinação de Medicamentos , Ritonavir , SARS-CoV-2 , Humanos , Antivirais/uso terapêutico , Antivirais/efeitos adversos , Antivirais/administração & dosagem , SARS-CoV-2/efeitos dos fármacos , Ritonavir/uso terapêutico , Ritonavir/administração & dosagem , Ritonavir/efeitos adversos , COVID-19/mortalidade , COVID-19/virologia , Lopinavir/uso terapêutico , Lopinavir/efeitos adversos , Lopinavir/administração & dosagem , Resultado do Tratamento
11.
Cephalalgia ; 44(6): 3331024241259489, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38850034

RESUMO

BACKGROUND: The cAMP and cGMP pathways are implicated in the initiation of migraine attacks, but their interactions remain unclear. Calcitonin gene-related peptide (CGRP) triggers migraine attacks via cAMP, whereas the phosphodiesterase-5 inhibitor sildenafil induces migraine attacks via cGMP. Our objective was to investigate whether sildenafil could induce migraine attacks in individuals with migraine pre-treated with the CGRP-receptor antibody erenumab. METHODS: In this randomized, double-blind, placebo-controlled, cross-over study, adults with migraine without aura received a single subcutaneous injection of 140 mg erenumab on day 1. They were then randomized to receive sildenafil 100 mg or placebo on two experimental days, each separated by at least one week, between days 8 and 21. The primary endpoint was the difference in the incidence of migraine attacks between sildenafil and placebo during the 12-h observation period after administration. RESULTS: In total, 16 participants completed the study. Ten participants (63%) experienced a migraine attack within 12 h after sildenafil administration compared to three (19%) after placebo (p = 0.016). The median headache intensity was higher after sildenafil than after placebo (area under the curve (AUC) for the 12-h observation period, p = 0.026). Furthermore, sildenafil induced a significant decrease in mean arterial blood pressure (AUC, p = 0.026) and a simultaneous increase in heart rate (AUC, p < 0.001) during the first hour after administration compared to placebo. CONCLUSION: These findings provide evidence that migraine induction via the cGMP pathway can occur even under CGRP receptor blockade. TRIAL REGISTRATION: ClinicalTrials.gov: Identifier NCT05889455.


Assuntos
Estudos Cross-Over , GMP Cíclico , Transtornos de Enxaqueca , Receptores de Peptídeo Relacionado com o Gene de Calcitonina , Citrato de Sildenafila , Humanos , Adulto , Masculino , Método Duplo-Cego , Feminino , Citrato de Sildenafila/farmacologia , Receptores de Peptídeo Relacionado com o Gene de Calcitonina/metabolismo , Transtornos de Enxaqueca/metabolismo , Transtornos de Enxaqueca/induzido quimicamente , Pessoa de Meia-Idade , GMP Cíclico/metabolismo , Anticorpos Monoclonais Humanizados/uso terapêutico , Anticorpos Monoclonais Humanizados/farmacologia , Antagonistas do Receptor do Peptídeo Relacionado ao Gene de Calcitonina , Inibidores da Fosfodiesterase 5/farmacologia , Adulto Jovem
12.
J Clin Apher ; 39(3): e22131, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38850077

RESUMO

BACKGROUND: Severe fever with thrombocytopenia syndrome (SFTS) is a zoonotic infectious disease caused by the severe fever with thrombocytopenia syndrome virus (SFTSV). Endemic in East Asia, SFTS is characterized by an exceptionally high mortality rate. Presently, there is no established treatment for SFTS, particularly for patients in critical condition. In this study, we collected and analyzed laboratory and clinical data from 92 critically ill patients with SFTS treated at Weihai Municipal Hospital between 2019 and 2022. We hope that our study will provide some hints for the treatment of critically ill patients with SFTS. METHODS: A total of 92 critically ill patients with SFTS were included in this study. Of these patients, 45 received treatment with therapeutic plasma exchange (TPE) and ribavirin (referred to as the TPE group), while the remaining patients received only ribavirin (referred to as the non-TPE group). Clinical and laboratory parameters were analyzed retrospectively. RESULTS: The results showed significant improvements in multiple laboratory parameters following treatment with TPE and ribavirin, including white blood cell and neutrophil count, lactate dehydrogenase, creatine kinase isoenzyme-MB, prothrombin time, activated partial thromboplastin time, D-Dimer, serum sodium and copies of virus genomes. The combination of TPE with ribavirin demonstrated a significant reduction in mortality rates, with a mortality rate of 20.0% in the TPE group compared to 40.4% in the non-TPE group (P = 0.033). CONCLUSIONS: Our findings suggest that critically ill patients with SFTS who received TPE and ribavirin experienced improvements in both clinical and laboratory parameters. These results indicate that TPE combined with ribavirin may represent a promising novel therapeutic approach for managing critically ill patients with SFTS. However, comparative studies of large sample size or randomized clinical trials are warranted to confirm the effectiveness of this combination therapy in the treatment of severe SFTS cases.


Assuntos
Estado Terminal , Troca Plasmática , Ribavirina , Febre Grave com Síndrome de Trombocitopenia , Humanos , Ribavirina/uso terapêutico , Troca Plasmática/métodos , Masculino , Feminino , Pessoa de Meia-Idade , Estudos Retrospectivos , Idoso , Febre Grave com Síndrome de Trombocitopenia/terapia , Febre Grave com Síndrome de Trombocitopenia/tratamento farmacológico , Antivirais/uso terapêutico , Adulto , Terapia Combinada
13.
J Clin Apher ; 39(3): e22129, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38850074

RESUMO

INTRODUCTION: Plasma exchange (PE) is considered a Category II option for the treatment of acute attacks and relapse cases of neuromyelitis optica spectrum disorder (NMOSD). However, neurologists are also considering intravenous immunoglobulins (IVIg) as an add-on therapy for this disorder. AIMS: The aim of this study is to evaluate the efficacy of PE in acute attacks of NMOSD when compared with IVIg, in terms of improvement in the Expanded disability status scale (EDSS) and activities of daily living (ADL) scale score and levels of anti-Aquaporin P4 (AQP4) antibody in seropositive patients. METHODS: We enrolled 43 NMOSD patients in two groups: Group 1 (n = 29) received steroids and PE, and Group 2 (n = 14) received steroids with IVIg. The baseline EDSS and ADL scores were recorded and compared with scores at the end of therapy, 4 weeks, and 3 months after. Also, anti-AQP4 antibody was measured at baseline and post-therapy in seropositive patients of both groups. RESULTS: We observed a significant difference in EDSS (p = 0.00) and ADL score (p = 0.00) at day 10 and 3 months in both groups. However, no significant difference in EDSS, as well as ADL score from baseline (p = 0.83; p = 0.25) to 3 months (p = 0.85; p = 0.19), was observed when delta change of score at 3 months was compared across the two groups (p = 0.39; p = 0.52). We observed improved visual acuity in both groups with mild improvement in findings of magnetic resonance imaging at 3 months. We observed a significant decline in AQP4 antibody concentration (at day 10) in group 1 seropositive patients (p = 0.013) with improved EDSS (p = 0.027) and ADL scores (p = 0.026) of these patients. CONCLUSIONS: PE should be considered as a choice of an add-on therapy in anti-AQP4 antibody-positive NMOSD patients compared with IVIg as it is more effective in reducing antibody concentrations.


Assuntos
Aquaporina 4 , Imunoglobulinas Intravenosas , Neuromielite Óptica , Troca Plasmática , Humanos , Neuromielite Óptica/terapia , Imunoglobulinas Intravenosas/uso terapêutico , Imunoglobulinas Intravenosas/administração & dosagem , Troca Plasmática/métodos , Feminino , Adulto , Masculino , Aquaporina 4/imunologia , Pessoa de Meia-Idade , Atividades Cotidianas , Resultado do Tratamento , Autoanticorpos/sangue
14.
Ethn Dis ; 34(1): 1-7, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-38854790

RESUMO

Introduction: Coronavirus disease (COVID) dashboards rarely provide insights about the racialized contexts in which vaccination inequities occur. Objective: The purpose of this study was to use the emerging Project REFOCUS dashboard to contextualize COVID vaccination patterns among 6 diverse communities. Methods: We queried the dashboard to generate descriptive statistics on vaccination trends and racism-related contextual factors among the 6 Project REFOCUS pilot sites (Albany, Georgia, Bronx, New York, Detroit, Michigan, Helena-West Helena, Arkansas, San Antonio, Texas, and Wake County, North Carolina). Results: Vaccination rates, demographic indicators, and contextual factors differed across sites. As of October 17, 2022, the proportion of people who had received at least 1 COVID vaccine dose ranged from 58.4% (Wayne County, Michigan) to 95.0% (Wake County, North Carolina). The pilot sites with the greatest percentage of Black residents (Dougherty County, Georgia, Wayne County, Michigan, and Phillips County, Arkansas) had lower proportions of fully vaccinated people. Wayne County, Michigan, had the highest level of residential segregation between Black and White residents (78.5%) and non-White and White residents (68.8%), whereas Phillips County, Arkansas, had the highest overall mortgage denial rates (38.9%). Both counties represent settings where over 75.0% of residents report Black race and over 30.0% of the population live in poverty. Discussion: The dashboard integrates racism-related factors with COVID vaccination visualizations and provides a fuller picture of the context in which COVID trends are occurring. Conclusions: Community organizers, researchers, policymakers, and practitioners can track racism-related factors and other social determinants of health as part of the contexts in which COVID-related inequities occur.


Assuntos
Vacinas contra COVID-19 , COVID-19 , Racismo , Determinantes Sociais da Saúde , Humanos , COVID-19/prevenção & controle , COVID-19/etnologia , Projetos Piloto , Vacinas contra COVID-19/administração & dosagem , Vacinas contra COVID-19/uso terapêutico , Negro ou Afro-Americano/estatística & dados numéricos , Vacinação/estatística & dados numéricos , Estados Unidos , Feminino , Masculino , Disparidades em Assistência à Saúde/etnologia , Michigan , Adulto , População Branca/estatística & dados numéricos , Pessoa de Meia-Idade
15.
Front Immunol ; 15: 1403771, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38855104

RESUMO

Background: Immunotherapeutic approaches, including immune checkpoint inhibitor (ICI) therapy, are increasingly recognized for their potential. Despite notable successes, patient responses to these treatments vary significantly. The absence of reliable predictive and prognostic biomarkers hampers the ability to foresee outcomes. This meta-analysis aims to evaluate the predictive significance of circulating myeloid-derived suppressor cells (MDSC) in patients with solid tumors undergoing ICI therapy, focusing on progression-free survival (PFS) and overall survival (OS). Methods: A comprehensive literature search was performed across PubMed and EMBASE from January 2007 to November 2023, utilizing keywords related to MDSC and ICI. We extracted hazard ratios (HRs) and 95% confidence intervals (CIs) directly from the publications or calculated them based on the reported data. A hazard ratio greater than 1 indicated a beneficial effect of low MDSC levels. We assessed heterogeneity and effect size through subgroup analyses. Results: Our search yielded 4,023 articles, of which 17 studies involving 1,035 patients were included. The analysis revealed that patients with lower levels of circulating MDSC experienced significantly improved OS (HR=2.13 [95% CI 1.51-2.99]) and PFS (HR=1.87 [95% CI 1.29-2.72]) in response to ICI therapy. Notably, heterogeneity across these outcomes was primarily attributed to differences in polymorphonuclear MDSC (PMN-MDSC) subpopulations and varying cutoff methodologies used in the studies. The monocytic MDSC (M-MDSC) subpopulation emerged as a consistent and significant prognostic marker across various subgroup analyses, including ethnicity, tumor type, ICI target, sample size, and cutoff methodology. Conclusions: Our findings suggest that standardized assessment of MDSC, particularly M-MDSC, should be integral to ICI therapy strategies. These cells hold the promise of identifying patients at risk of poor response to ICI therapy, enabling tailored treatment approaches. Further research focusing on the standardization of markers and validation of cutoff methods is crucial for integrating MDSC into clinical practice. Systematic Review Registration: https://www.crd.york.ac.uk/prospero/display_record.php?ID=CRD42023420095, identifier CRD42023420095.


Assuntos
Biomarcadores Tumorais , Inibidores de Checkpoint Imunológico , Células Supressoras Mieloides , Neoplasias , Humanos , Células Supressoras Mieloides/imunologia , Neoplasias/tratamento farmacológico , Neoplasias/imunologia , Neoplasias/sangue , Inibidores de Checkpoint Imunológico/uso terapêutico , Biomarcadores Tumorais/sangue , Prognóstico
16.
Front Immunol ; 15: 1393939, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38855109

RESUMO

Introduction: Novel therapies for 3L+ relapsed/refractory (r/r) follicular lymphoma (FL) have been approved recently by the US Food and Drug Administration including anti-CD19 CAR-T therapies such as axicabtagene ciloleucel (axi-cel) and CD20 × CD3 T-cell-engaging bispecific monoclonal antibodies such as mosunetuzumab (mosun). The objective of this study was to assess the cost-effectiveness of axi-cel compared to mosun in 3L+ r/r FL patients from a US third-party payer perspective. Methods: A three-state (progression-free, progressed disease, and death) partitioned-survival model was used to compare two treatments over a lifetime horizon in a hypothetical cohort of US adults (age ≥18) receiving 3L+ treatment for r/r FL. ZUMA-5 and GO29781 trial data were used to inform progression-free survival (PFS) and overall survival (OS). Mosun survival was modeled via hazard ratios (HRs) applied to axi-cel survival curves. The PFS HR value was estimated via a matching-adjusted indirect comparison (MAIC) based on mosun pseudo-individual patient data and adjusted axi-cel data to account for trial populations differences. One-way sensitivity analysis (OWSA) and probabilistic sensitivity analyses (PSA) were conducted. Scenario analyses included: 1) the mosun HRs were applied to the weighted (adjusted) ZUMA-5 24-month data to most exactly reflect the MAIC, 2) mosun HR values were applied to axi-cel 48-month follow-up data, and 3) recent axi-cel health state utility values in diffuse large B-cell lymphoma patients. Results: The analysis estimated increases of 1.82 LY and 1.89 QALY for axi-cel compared to mosun. PFS for axi-cel patients was 6.42 LY vs. 1.60 LY for mosun. Increase of $257,113 in the progression-free state was driven by one-time axi-cel treatment costs. Total incremental costs for axi-cel were $204,377, resulting in an ICER of $108,307/QALY gained. The OWSA led to ICERs ranging from $240,255 to $75,624, with all but two parameters falling below $150,000/QALY. In the PSA, axi-cel had an 64% probability of being cost-effective across 5,000 iterations using a $150,000 willingness-to-pay threshold. Scenarios one and two resulted in ICERs of $105,353 and $102,695, respectively. Discussion: This study finds that axi-cel is cost-effective compared to mosun at the commonly cited $150,000/QALY US willingness-to-pay threshold, with robust results across a range of sensitivity analyses accounting for parameter uncertainty.


Assuntos
Produtos Biológicos , Análise Custo-Benefício , Linfoma Folicular , Humanos , Linfoma Folicular/tratamento farmacológico , Linfoma Folicular/economia , Linfoma Folicular/mortalidade , Estados Unidos , Produtos Biológicos/uso terapêutico , Produtos Biológicos/economia , Masculino , Anticorpos Biespecíficos/uso terapêutico , Anticorpos Biespecíficos/economia , Feminino , Imunoterapia Adotiva/economia , Anticorpos Monoclonais Humanizados/uso terapêutico , Anticorpos Monoclonais Humanizados/economia , Pessoa de Meia-Idade , Antineoplásicos Imunológicos/uso terapêutico , Antineoplásicos Imunológicos/economia , Adulto , Anos de Vida Ajustados por Qualidade de Vida , Recidiva Local de Neoplasia/tratamento farmacológico , Idoso
17.
Theranostics ; 14(8): 3043-3079, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38855174

RESUMO

In 1853, the perception of prostate cancer (PCa) as a rare ailment prevailed, was described by the eminent Londoner surgeon John Adams. Rapidly forward to 2018, the landscape dramatically altered. Currently, men face a one-in-nine lifetime risk of PCa, accentuated by improved diagnostic methods and an ageing population. With more than three million men in the United States alone grappling with this disease, the overall risk of succumbing to stands at one in 39. The intricate clinical and biological diversity of PCa poses serious challenges in terms of imaging, ongoing monitoring, and disease management. In the field of theranostics, diagnostic and therapeutic approaches that harmoniously merge targeted imaging with treatments are integrated. A pivotal player in this arena is radiotheranostics, employing radionuclides for both imaging and therapy, with prostate-specific membrane antigen (PSMA) at the forefront. Clinical milestones have been reached, including FDA- and/or EMA-approved PSMA-targeted radiodiagnostic agents, such as [18F]DCFPyL (PYLARIFY®, Lantheus Holdings), [18F]rhPSMA-7.3 (POSLUMA®, Blue Earth Diagnostics) and [68Ga]Ga-PSMA-11 (Locametz®, Novartis/ ILLUCCIX®, Telix Pharmaceuticals), as well as PSMA-targeted radiotherapeutic agents, such as [177Lu]Lu-PSMA-617 (Pluvicto®, Novartis). Concurrently, ligand-drug and immune therapies designed to target PSMA are being advanced through rigorous preclinical research and clinical trials. This review delves into the annals of PSMA-targeted radiotheranostics, exploring its historical evolution as a signature molecule in PCa management. We scrutinise its clinical ramifications, acknowledge its limitations, and peer into the avenues that need further exploration. In the crucible of scientific inquiry, we aim to illuminate the path toward a future where the enigma of PCa is deciphered and where its menace is met with precise and effective countermeasures. In the following sections, we discuss the intriguing terrain of PCa radiotheranostics through the lens of PSMA, with the fervent hope of advancing our understanding and enhancing clinical practice.


Assuntos
Antígenos de Superfície , Glutamato Carboxipeptidase II , Neoplasias da Próstata , Compostos Radiofarmacêuticos , Humanos , Neoplasias da Próstata/diagnóstico por imagem , Neoplasias da Próstata/terapia , Glutamato Carboxipeptidase II/metabolismo , Masculino , Antígenos de Superfície/metabolismo , Compostos Radiofarmacêuticos/uso terapêutico , Medicina Nuclear/métodos , Medicina Nuclear/história , Nanomedicina Teranóstica/métodos , Radioisótopos/uso terapêutico , História do Século XXI , História do Século XX
18.
Theranostics ; 14(8): 3267-3281, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38855181

RESUMO

Background: Myocardial infarction (MI) as a consequence of atherosclerosis-associated acute thrombosis is a leading cause of death and disability globally. Antiplatelet and anticoagulant drugs are standard therapies in preventing and treating MI. However, all clinically used drugs are associated with bleeding complications, which ultimately limits their use in patients with a high risk of bleeding. We have developed a new recombinant drug, targ-HSA-TAP, that combines targeting and specific inhibition of activated platelets as well as anticoagulation. This drug is designed and tested for a prolonged circulating half-life, enabling unique thromboprophylaxis without bleeding complications. Methods: Targ-HSA-TAP combines a single-chain antibody (scFv) that targets activated glycoprotein IIb/IIIa on activated platelets, human serum albumin (HSA) for prolonged circulation, and tick anticoagulant peptide (TAP) for coagulation FX inhibition. A non-binding scFv is employed as a non-targeting control (non-targ-HSA-TAP). Its efficacy was investigated in vivo using murine models of acute thrombosis and cardiac ischemia-reperfusion (I/R) injury. Results: Our experiments confirmed the targeting specificity of targ-HSA-TAP to activated platelets and demonstrated effective prevention of platelet aggregation and thrombus formation, as well as FXa inhibition in vitro. Thromboprophylactic administration of targ-HSA-TAP subcutaneously in mice prevented occlusion of the carotid artery after ferric chloride injury as compared to non-targ-HSA-TAP and PBS-control treated mice. By comparing the therapeutic outcomes between targ-TAP and targ-HSA-TAP, we demonstrate the significant improvements brought by the HSA fusion in extending the drug's half-life and enhancing its therapeutic window for up to 16 h post-administration. Importantly, tail bleeding time was not prolonged with targ-HSA-TAP in contrast to the clinically used anticoagulant enoxaparin. Furthermore, in a murine model of cardiac I/R injury, mice administered targ-HSA-TAP 10 h before injury demonstrated preserved cardiac function, with significantly higher ejection fraction and fractional shortening, as compared to the non-targ-HSA-TAP and PBS control groups. Advanced strain analysis revealed reduced myocardial deformation and histology confirmed a reduced infarct size in targ-HSA-TAP treated mice compared to control groups. Conclusion: The inclusion of HSA represents a significant advancement in the design of targeted therapeutic agents for thromboprophylaxis. Our activated platelet-targeted targ-HSA-TAP is a highly effective antithrombotic drug with both anticoagulant and antiplatelet effects while retaining normal hemostasis. The long half-life of targ-HSA-TAP provides the unique opportunity to use this antithrombotic drug for more effective, long-lasting and safer anti-thrombotic prophylaxis. In cases where MI occurs, this prophylactic strategy reduces thrombus burden and effectively reduces cardiac I/R injury.


Assuntos
Plaquetas , Hemorragia , Albumina Sérica Humana , Trombose , Animais , Camundongos , Trombose/prevenção & controle , Trombose/tratamento farmacológico , Humanos , Hemorragia/prevenção & controle , Plaquetas/efeitos dos fármacos , Plaquetas/metabolismo , Modelos Animais de Doenças , Masculino , Anticoagulantes/farmacologia , Anticoagulantes/uso terapêutico , Anticorpos de Cadeia Única/farmacologia , Anticorpos de Cadeia Única/uso terapêutico , Traumatismo por Reperfusão Miocárdica/prevenção & controle , Traumatismo por Reperfusão Miocárdica/tratamento farmacológico , Infarto do Miocárdio/tratamento farmacológico , Camundongos Endogâmicos C57BL , Proteínas Recombinantes de Fusão/farmacologia , Proteínas Recombinantes de Fusão/uso terapêutico
19.
Theranostics ; 14(8): 3300-3316, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38855182

RESUMO

Patient-derived organoids (PDOs) have emerged as a promising platform for clinical and translational studies. A strong correlation exists between clinical outcomes and the use of PDOs to predict the efficacy of chemotherapy and/or radiotherapy. To standardize interpretation and enhance scientific communication in the field of cancer precision medicine, we revisit the concept of PDO-based drug sensitivity testing (DST). We present an expert consensus-driven approach for medication selection aimed at predicting patient responses. To further standardize PDO-based DST, we propose guidelines for clarification and characterization. Additionally, we identify several major challenges in clinical prediction when utilizing PDOs.


Assuntos
Antineoplásicos , Consenso , Desenvolvimento de Medicamentos , Neoplasias , Organoides , Medicina de Precisão , Organoides/efeitos dos fármacos , Humanos , Medicina de Precisão/métodos , Neoplasias/tratamento farmacológico , Desenvolvimento de Medicamentos/métodos , Antineoplásicos/farmacologia , Antineoplásicos/uso terapêutico , Ensaios de Seleção de Medicamentos Antitumorais/métodos
20.
Theranostics ; 14(8): 3178-3192, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38855189

RESUMO

In the evolving landscape of precision medicine, NET-targeted radiopharmaceuticals are emerging as pivotal tools for the diagnosis and treatment of a range of conditions, from heart failure and neurodegenerative disorders to neuroendocrine cancers. This review evaluates the advancements offered by 18F-labeled PET tracers and 211At alpha-particle therapy, juxtaposed with current 123I-MIBG SPECT and 131I-MIBG therapies. The enhanced spatial resolution and capability for quantitative analysis render 18F-labeled PET tracers potential candidates for improved detection and management of diseases. Alpha-particle therapy with 211At may offer increased specificity and tumoricidal efficacy, pointing towards a shift in therapeutic protocols. While preliminary data is promising, these innovative approaches require thorough validation against current modalities. Ongoing clinical trials are pivotal to confirm the expected clinical benefits and to address safety concerns. This review underscores the need for rigorous research to verify the clinical utility of NET-targeted radiopharmaceuticals, which may redefine precision medicine paradigms and significantly impact patient care.


Assuntos
Tumores Neuroendócrinos , Medicina de Precisão , Compostos Radiofarmacêuticos , Humanos , Medicina de Precisão/métodos , Medicina de Precisão/tendências , Compostos Radiofarmacêuticos/uso terapêutico , Tumores Neuroendócrinos/diagnóstico por imagem , Tumores Neuroendócrinos/radioterapia , Tomografia por Emissão de Pósitrons/métodos , Animais
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