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1.
Front Immunol ; 14: 1169034, 2023.
Article in English | MEDLINE | ID: covidwho-2264720
2.
Med J Aust ; 217(2): 65-70, 2022 07 18.
Article in English | MEDLINE | ID: covidwho-2274622
3.
BMC Health Serv Res ; 23(1): 136, 2023 Feb 09.
Article in English | MEDLINE | ID: covidwho-2238373

ABSTRACT

INTRODUCTION: A new dosing schedule for the oncology immunotherapy pembrolizumab, every 6 weeks (Q6W), has been approved by the U.S. FDA, reducing the frequency of visits to infusion centers. We quantified the time spent by oncologists, nurses, patients, and caregivers per melanoma-related immunotherapy infusion visit to evaluate its potential impact. METHODS: Surveys were self-completed by 100 oncologists, 101 oncology nurses, and 100 patients with melanoma across the U.S. to quantify the time spent per infusion visit with pembrolizumab (Q3W or Q6W), nivolumab (Q2W or Q4W), or nivolumab+ipilimumab (nivolumab in combination: Q3W; nivolumab maintenance: Q2W or Q4W). Time measures included traveling, waiting, consultation, infusion, post-treatment observation, and caregiving. Respondents were also surveyed regarding the impact of the COVID-19 pandemic on infusion treatments. RESULTS: Responses deemed valid were provided by 89 oncologists, 93 nurses, and 100 patients. For each new [returning] patient treated with pembrolizumab, nivolumab or nivolumab+ipilimumab, oncologists reported to spend an average of 90 [64], 87 [60] and 101 [69] minutes per infusion visit (p-value for between-group difference = 0.300 [0.627]). For first [subsequent] treatment cycles, nurses reported spending 160 [145] average minutes per visit for nivolumab+ipilimumab, versus roughly 120 [110] for the single agents (p-value for between-group difference = 0.018 [0.022]). Patients reported to spend an average of 263, 382, and 224 minutes per visit at the center for pembrolizumab (N = 47), nivolumab (n = 34), and nivolumab+ipilimumab (n = 15) respectively (p-value for between-group difference = 0.0002). Patients also reported that their unpaid (N = 20) and paid caregivers (N = 41) spent with them an average of 966 and 333 minutes, respectively, from the day before to the day after the infusion visit. CONCLUSION: Less frequent immunotherapy infusion visits may result in substantial time savings for oncologists, nurses, patients, and caregivers.


Subject(s)
COVID-19 , Melanoma , Humans , United States , Nivolumab/therapeutic use , Ipilimumab/therapeutic use , Pandemics , Melanoma/drug therapy , Immunotherapy , Health Personnel , Antineoplastic Combined Chemotherapy Protocols
4.
Front Cardiovasc Med ; 9: 873452, 2022.
Article in English | MEDLINE | ID: covidwho-2065475
5.
Vaccines (Basel) ; 10(8)2022 Aug 06.
Article in English | MEDLINE | ID: covidwho-1979438

ABSTRACT

Mucormycosis is an invasive fungal infection caused by fungi belonging to order Mucorales. Recently, with the increase in COVID-19 infections, mucormycosis infections have become a matter of concern globally, because of the high morbidity and mortality rates associated with them. Due to the association of mucormycosis with COVID-19 disease, it has been termed COVID-19-associated mucormycosis (CAM). In the present review, we focus on mucormycosis incidence, pathophysiology, risk factors, immune dysfunction, interactions of Mucorales with endothelial cells, and the possible role of iron in Mucorales growth. We review the limitations associated with current diagnostic procedures and the requirement for more specific, cost-effective, convenient, and sensitive assays, such as PCR-based assays and monoclonal antibody-based assays for the effective diagnosis of mucormycosis. We discuss the current treatment options involving antifungal drug therapies, adjunctive therapy, surgical treatment, and their limitations. We also review the importance of nutraceuticals-based therapy for the prevention as well as treatment of mucormycosis. Our review also highlights the need to explore the potential of novel immunotherapeutics, which include antibody-based therapy, cytokine-based therapy, and combination/synergistic antifungal therapy, as treatment options for mucormycosis. In summary, this review provides a complete overview of COVID-19-associated mucormycosis, addressing the current research gaps and future developments required in the field.

7.
Eur J Cancer ; 160: 150-174, 2022 01.
Article in English | MEDLINE | ID: covidwho-1525772

ABSTRACT

The ability to exploit the immune system as a weapon against cancer has revolutionised the treatment of cancer patients, especially through immune checkpoint inhibitors (ICIs). However, ICIs demonstrated a modest benefit in treating breast cancer (BC), with the exception of certain subsets of triple-negative BCs. An immune-suppressive tumour microenvironment (TME), typically present in BC, is an important factor in the poor response to immunotherapy. After almost two decades of poor clinical trial results, cancer vaccines (CVs), an active immunotherapy, have come back in the spotlight because of some technological advancements, ultimately boosted by coronavirus disease 2019 pandemic. In particular, neoantigens are emerging as the preferred targets for CVs, with gene-based and viral vector-based platforms in development. Moreover, lipid nanoparticles proved to be immunogenic and efficient delivery vehicles. Past clinical trials investigating CVs focused especially on the metastatic disease, where the TME is more likely compromised by inhibitory mechanisms. In this sense, favouring the use of CVs as monotherapy in premalignant or in the adjuvant setting and establishing combination treatments (i.e. CV plus ICI) in late-stage disease are promising strategies. This review provides a full overview of the past and current breast cancer vaccine landscape.


Subject(s)
Breast Neoplasms/prevention & control , Cancer Vaccines/therapeutic use , Tumor Microenvironment , Animals , Breast Neoplasms/immunology , Female , Humans
8.
Front Cell Dev Biol ; 9: 756315, 2021.
Article in English | MEDLINE | ID: covidwho-1477803

ABSTRACT

Toll-like receptors (TLRs) are the pattern recognition receptors, which are activated by foreign and host molecules in order to initiate the immune response. They play a crucial role in the regulation of innate immunity, and several studies have shown their importance in bacterial, viral, and fungal infections, autoimmune diseases, and cancers. The consensus view from an immunological perspective is that TLR agonists can serve either as a possible therapeutic agent or as a vaccine adjuvant toward cancers or infectious diseases and that TLR inhibitors may be a promising approach to the treatment of autoimmune diseases, some cancers, bacterial, and viral infections. These notions are based on the fact that TLR agonists stimulate the secretion of proinflammatory cytokines and in general, the development of proinflammatory responses. Some of the TLR-based inhibitory agents have shown to be efficacious in preclinical models and have now entered clinical trials. Therefore, TLRs seem to hold the potential to serve as a perfect target in the era of immunotherapies. We offer a perspective on TLR-based therapeutics that sheds light on their usefulness and on combination therapies. We also highlight various therapeutics that are in the discovery phase or in clinical trials.

9.
Cancers (Basel) ; 13(20)2021 Oct 14.
Article in English | MEDLINE | ID: covidwho-1470796

ABSTRACT

Despite the challenges imposed by the COVID-19 pandemic, exciting therapeutic progress continues to be made in MM. New drug approvals for relapsed/refractory (RR)MM in 2020/2021 include the second CD38 monoclonal antibody, isatuximab, the first BCMA-targeting therapy and first-in-class antibody-drug conjugate (ADC) belantamab mafodotin, the first BCMA-targeting CAR T cell product Idecabtagen-Vicleucel (bb2121, Ide-Cel), the first in-class XPO-1 inhibitor selinexor, as well as the first-in-class anti-tumor peptide-drug conjugate, melflufen. The present introductory article of the Special Issue on "Advances in the Treatment of Relapsed and Refractory Multiple Myeloma: Novel Agents, Immunotherapies and Beyond" summarizes the most recent registration trials and emerging immunotherapies in RRMM, gives an overview on latest insights on MM genomics and on tumor-induced changes within the MM microenvironment, and presents some of the most promising rationally derived future therapeutic strategies.

10.
Ann Oncol ; 32(12): 1537-1551, 2021 12.
Article in English | MEDLINE | ID: covidwho-1401179

ABSTRACT

Cancer vaccines (CVs) represent a long-sought therapeutic and prophylactic immunotherapy strategy to obtain antigen (Ag)-specific T-cell responses and potentially achieve long-term clinical benefit. However, historically, most CV clinical trials have resulted in disappointing outcomes, despite promising signs of immunogenicity across most formulations. In the past decade, technological advances regarding vaccine delivery platforms, tools for immunogenomic profiling, and Ag/epitope selection have occurred. Consequently, the ability of CVs to induce tumor-specific and, in some cases, remarkable clinical responses have been observed in early-phase clinical trials. It is notable that the record-breaking speed of vaccine development in response to the coronavirus disease-2019 pandemic mainly relied on manufacturing infrastructures and technological platforms already developed for CVs. In turn, research, clinical data, and infrastructures put in place for the severe acute respiratory syndrome coronavirus 2 pandemic can further speed CV development processes. This review outlines the main technological advancements as well as major issues to tackle in the development of CVs. Possible applications for unmet clinical needs will be described, putting into perspective the future of cancer vaccinology.


Subject(s)
COVID-19 , Cancer Vaccines , Neoplasms , Cancer Vaccines/therapeutic use , Humans , Neoplasms/therapy , SARS-CoV-2 , Technology
11.
Expert Rev Proteomics ; 18(2): 83-91, 2021 02.
Article in English | MEDLINE | ID: covidwho-1182939

ABSTRACT

Introduction: The cytokine storm is a form of excessive systemic inflammatory reaction triggered by a myriad of factors that may lead to multi-organ failure, and finally to death. The cytokine storm can occur in a number of infectious and noninfectious diseases including COVID-19, sepsis, ebola, avian influenza, and graft versus host disease, or during the severe inflammatory response syndrome.Area covered: This review mainly focuses on the most common and well-known methods of protein studies (PAGE, SDS-PAGE, and high- performance liquid chromatography). It also discusses other modern technologies in proteomics like mass spectrometry, soft ionization techniques, cytometric bead assays, and the next generation of microarrays that have been used to get an in-depth understanding of the pathomechanisms involved during the cytokine storm.Expert opinion: Overactivation of leukocytes drives the production and secretion of inflammatory cytokines fueling the cytokine storm. These events lead to a systemic hyper-inflammation, circulatory collapse and shock, and finally to multiorgan failure. Therefore, monitoring the patient's systemic cytokine levels with proteomic technologies that are redundant, economical, and require minimal sample volume for real-time assessment might help in a better clinical evaluation and management of critically ill patients.


Subject(s)
COVID-19/immunology , Cytokine Release Syndrome/genetics , Cytokines/genetics , Proteomics/methods , COVID-19/genetics , COVID-19/pathology , Cytokine Release Syndrome/immunology , Cytokines/biosynthesis , Humans , Immunoassay/methods , SARS-CoV-2/genetics , SARS-CoV-2/immunology , SARS-CoV-2/pathogenicity
12.
Microorganisms ; 9(3)2021 Mar 15.
Article in English | MEDLINE | ID: covidwho-1136522

ABSTRACT

People around the world ushered in the new year 2021 with a fear of COVID-19, as family members have lost their loved ones to the disease. Millions of people have been infected, and the livelihood of many has been jeopardized due to the pandemic. Pharmaceutical companies are racing against time to develop an effective vaccine to protect against COVID-19. Researchers have developed various types of candidate vaccines with the release of the genetic sequence of the SARS-CoV-2 virus in January. These include inactivated viral vaccines, protein subunit vaccines, mRNA vaccines, and recombinant viral vector vaccines. To date, several vaccines have been authorized for emergency use and they have been administered in countries across the globe. Meanwhile, there are also vaccine candidates in Phase III clinical trials awaiting results and approval from authorities. These candidates have shown positive results in the previous stages of the trials, whereby they could induce an immune response with minimal side effects in the participants. This review aims to discuss the different vaccine platforms and the clinical trials of the candidate vaccines.

13.
J Immunoassay Immunochem ; 41(6): 960-975, 2020 Nov 01.
Article in English | MEDLINE | ID: covidwho-1104705

ABSTRACT

In December 2019, an outbreak of pandemic severe respiratory distress syndrome coronavirus disease 2019 (COVID-19) initially occurred in China, has spread the world resulted in serious threats to human public health. Uncommon neurological manifestations with pathophysiological symptoms were observed in infected patients including headache, seizures, and neuroimmunological disorders. Regardless of whether these neurological symptoms are direct or indirect casual infection relationship, this novel viral infection has a relevant impact on the neuroimmune system that requires a neurologist's careful assessment. Recently, the use of immunotherapy has been emerged in fighting against COVID-19 infection despite the uncertain efficiency in managing COVID-19 related disorders or even its proven failure by increasing its severity. Herein, the author is addressing the first approaches in using immunotherapies in controlling COVID-19 viral impact on the brain by highlighting their role in decreasing or increasing infection risks among subjects. This point of view review article supports the use of immunotherapies in managing COVID-19 neurological disorders but in optimal timing and duration to ensure the maximum therapeutic outcome by reducing morbidity and mortality rate. Based on recently published data, the current review article highlights the beneficial effects and drawbacks of using immunotherapies to combat COVID-19 and its neurological symptoms.


Subject(s)
COVID-19/immunology , COVID-19/therapy , Cytokine Release Syndrome/virology , Immunotherapy/methods , Nervous System Diseases/immunology , Nervous System Diseases/therapy , Brain/pathology , COVID-19/complications , Cladribine/therapeutic use , Cytokine Release Syndrome/therapy , Cytokines/immunology , Glucocorticoids/therapeutic use , Headache/virology , Humans , Immunoglobulins, Intravenous/therapeutic use , Interferon-beta/immunology , Interleukin-6/immunology , Nervous System Diseases/virology , Pandemics
14.
Hum Vaccin Immunother ; 17(7): 1897-1909, 2021 07 03.
Article in English | MEDLINE | ID: covidwho-1082109

ABSTRACT

The coronavirus disease (COVID-19) pandemic caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has created havoc worldwide. Due to the non-availability of any vaccine or drugs against COVID-19, immunotherapies involving convalescent plasma, immunoglobulins, antibodies (monoclonal or polyclonal), and the use of immunomodulatory agents to enhance immunity are valuable alternative options. Cell-based therapies including natural killer cells, T cells, stem cells along with cytokines and toll-like receptors (TLRs) based therapies are also being exploited potentially against COVID-19. Future research need to strengthen the field of developing effective immunotherapeutics and immunomodulators with a thrust of providing appropriate, affordable, convenient, and cost-effective prophylactic and treatment regimens to combat global COVID-19 crisis that has led to a state of medical emergency enforcing entire countries of the world to devote their research infrastructure and manpower in tackling this pandemic.


Subject(s)
COVID-19 , Coronavirus Infections , COVID-19/therapy , Humans , Immunization, Passive , Immunotherapy , SARS-CoV-2 , COVID-19 Serotherapy
15.
eNeurologicalSci ; 21: 100287, 2020 Dec.
Article in English | MEDLINE | ID: covidwho-898813

ABSTRACT

BACKGROUND: In view of the emerging coronavirus pandemic, the demand for knowledge about the impact of SARS-CoV-2 on people with Multiple Sclerosis (MS) continues to grow. Patients receiving disease modifying therapy (DMT) for MS have a higher background risk of infection-related health care utilization when compared to the general population. Therefore, there is a need of evidence-based recommendations to reduce the risk of infection and also managing MS patients with SARS-CoV-2. CASE DESCRIPTION: We present three patients with history of Multiple Sclerosis (MS) on DMTs presenting with worsening MS symptoms likely pseudo exacerbation who were diagnosed with COVID-19. DISCUSSION: An extensive review of 7 articles was performed, in addition to a brief review on DMTs use in MS patients with COVID-19. In our cases, all patients were on DMT and severe course of disease was noted in 2 cases. No fatality was observed. CONCLUSIONS: This review provides a base on the clinical characteristics, outcomes and the roles of DMTs in MS patients suffering from n-cov-2. Physicians need to be vigilant about considering COVID-19 infection related relapse in the MS patients, especially in this COVID-19 pandemic era and look for pseudo-exacerbation. As most cases are found to have mild course and full recovery on DMTs, further research is needed to formulate evidence-based guidelines. This review will particularly be helpful for the researchers and registries to collect future data on MS and COVID-19.

16.
Dig Dis Sci ; 66(9): 2855-2864, 2021 09.
Article in English | MEDLINE | ID: covidwho-871505

ABSTRACT

The COVID-19 pandemic has created a public health emergency. In this context, there are major concerns for patients with inflammatory bowel disease (IBD), particularly for those treated with immunomodulators, biologics, and Janus Kinase inhibitors. Infection susceptibility is, in fact, one of the reported risks for immunotherapy drugs. This review provides the existing evidence from worldwide case series describing: (a) the risk for the SARS-CoV-2 infection and (b) the risk of a severe infection outcome in patients with IBD treated with immunotherapy. Further, the review discusses the potential mechanisms underlying why this group of patients with IBD might be protected from contracting the infection and from a worse disease. From the available data, it appears that these patients should have an enhanced adherence to the recommended preventive measures, suggesting a role in reducing their risk of infection. Furthermore, the immunotherapy may dampen the cytokine storm and inflammation associated with COVID-19. The results of this review seem to confirm that patients with IBD receiving immunomodulators, biologics, or Janus Kinase inhibitors do not have an increased risk of contracting SARS-CoV-2 infection or develop a more severe COVID-19. According to the current evidence, it is advisable to maintain immunotherapy, apart from corticosteroids, in patients with IBD in order to avoid relapse. This review reports only on the cases of patients who tested positive for SARS-CoV-2 by RT-PCR of a nasopharyngeal swab sample. This is a limitation and a more accurate epidemiological picture of the infection will be obtained only via the expanded use of antibody tests.


Subject(s)
COVID-19/complications , Immunocompromised Host , Immunosuppressive Agents/therapeutic use , Inflammatory Bowel Diseases/complications , Inflammatory Bowel Diseases/drug therapy , SARS-CoV-2 , Humans
18.
Front Immunol ; 11: 1648, 2020.
Article in English | MEDLINE | ID: covidwho-685338

ABSTRACT

Cytokine storm is an acute hyperinflammatory response that may be responsible for critical illness in many conditions including viral infections, cancer, sepsis, and multi-organ failure. The phenomenon has been implicated in critically ill patients infected with SARS-CoV-2, the novel coronavirus implicated in COVID-19. Critically ill COVID-19 patients experiencing cytokine storm are believed to have a worse prognosis and increased fatality rate. In SARS-CoV-2 infected patients, cytokine storm appears important to the pathogenesis of several severe manifestations of COVID-19: acute respiratory distress syndrome, thromboembolic diseases such as acute ischemic strokes caused by large vessel occlusion and myocardial infarction, encephalitis, acute kidney injury, and vasculitis (Kawasaki-like syndrome in children and renal vasculitis in adult). Understanding the pathogenesis of cytokine storm will help unravel not only risk factors for the condition but also therapeutic strategies to modulate the immune response and deliver improved outcomes in COVID-19 patients at high risk for severe disease. In this article, we present an overview of the cytokine storm and its implications in COVID-19 settings and identify potential pathways or biomarkers that could be targeted for therapy. Leveraging expert opinion, emerging evidence, and a case-based approach, this position paper provides critical insights on cytokine storm from both a prognostic and therapeutic standpoint.


Subject(s)
Betacoronavirus/immunology , Coronavirus Infections/drug therapy , Coronavirus Infections/immunology , Critical Care/methods , Cytokines/blood , Pneumonia, Viral/drug therapy , Pneumonia, Viral/immunology , Adrenal Cortex Hormones/therapeutic use , Angiotensin-Converting Enzyme 2 , Anti-Inflammatory Agents, Non-Steroidal/therapeutic use , CD4-CD8 Ratio , CD4-Positive T-Lymphocytes/immunology , CD8-Positive T-Lymphocytes/immunology , COVID-19 , Clinical Decision-Making/methods , Coronavirus Infections/blood , Coronavirus Infections/mortality , Critical Illness , Endothelial Cells/metabolism , Female , Humans , Immunocompromised Host , Interleukin-6/antagonists & inhibitors , Janus Kinase Inhibitors/therapeutic use , Male , Pandemics , Peptidyl-Dipeptidase A/metabolism , Pneumonia, Viral/blood , Pneumonia, Viral/mortality , SARS-CoV-2 , Sex Factors , Thrombosis
19.
EBioMedicine ; 56: 102822, 2020 Jun.
Article in English | MEDLINE | ID: covidwho-598151

ABSTRACT

Immunosuppression and immunomodulation are valuable therapeutic approaches for managing neuroimmunological diseases. In times of the Coronavirus disease 2019 (COVID-19) pandemic, clinicians must deal with the question of whether immunotherapy should currently be initiated or discontinued in neurological patients. Uncertainty exists especially because different national medical associations publish different recommendations on the extent to which immunotherapies must be continued, monitored, or possibly switched during the current pandemic. Based on the most recently available data both about the novel coronavirus and the approved immunotherapies for neurological diseases, we provide an updated overview that includes current treatment strategies and the associated COVID-19 risk, but also the potential of immunotherapies to treat COVID-19.


Subject(s)
Coronavirus Infections/pathology , Immunotherapy , Nervous System Diseases/therapy , Pneumonia, Viral/pathology , Antibodies, Monoclonal/therapeutic use , Betacoronavirus/isolation & purification , Betacoronavirus/physiology , COVID-19 , Complement System Proteins/metabolism , Coronavirus Infections/complications , Coronavirus Infections/virology , Humans , Immunity, Active , Immunosuppressive Agents/therapeutic use , Nervous System Diseases/complications , Pandemics , Pneumonia, Viral/complications , Pneumonia, Viral/virology , SARS-CoV-2 , Vaccination
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