477 Generating Merkel cell polyomavirus reactive T cells from healthy donors for adoptive immunotherapy

Merkel Cell Carcinoma (MCC) is an aggressive neuroendocrine skin cancer that is highly immunogenic. Approximately 80% of MCC tumors are virus positive (VP-MCC) and express Merkel cell polyomavirus (MCPyV) T antigens that drive oncogenesis. As VP-MCC have a low mutation burden with few predicted neoantigens, viral oncogenes are thought to be the primary target for anti-cancer immunity. Immune checkpoint inhibitors improve MCC survival, yet
Source: Journal of Investigative Dermatology - Category: Dermatology Authors: Tags: Melanoma and Other Skin Cancers Source Type: research

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In this report, a group of experts of the Spanish Society of Medical Oncology (SEOM), the Spanish Society of Medical Radiology (SERAM), and Spanish Society of Nuclear Medicine and Molecular Imaging (SEMNIM) provide an up-to-date review and a consensus guide on these issues. PMID: 32623581 [PubMed - as supplied by publisher]
Source: Clinical Genitourinary Cancer - Category: Cancer & Oncology Authors: Tags: Clin Transl Oncol Source Type: research
arma Terry A. Day Cancers that arise in the head and neck region are comprised of a heterogeneous group of malignancies that include carcinogen- and human papillomavirus (HPV)-driven mucosal squamous cell carcinoma as well as skin cancers such as cutaneous squamous cell carcinoma, basal cell carcinoma, melanoma, and Merkel cell carcinoma. These malignancies develop in critical areas for eating, talking, and breathing and are associated with substantial morbidity and mortality despite advances in treatment. Understanding of advances in the management of these various cancers is important for all multidisciplinary prov...
Source: Cancers - Category: Cancer & Oncology Authors: Tags: Review Source Type: research
AbstractSkin cancers remain the most common group of cancers globally, and the incidence continues to rise. Although localized skin cancers tend to have excellent outcomes following surgical excisions, the less common cases that become surgically unresectable or metastatic have been associated with poor prognosis and suboptimal treatment responses to cytotoxic chemotherapy. Development of monoclonal antibodies to programmed cell death-1 receptor and its ligand (PD-1/PD-L1) have transformed the management of metastatic melanoma, squamous cell carcinoma, and Merkel cell carcinoma. These agents, as monotherapies, are associat...
Source: BioDrugs - Category: Drugs & Pharmacology Source Type: research
Purpose of review Merkel cell carcinoma (MCC) is a rare and aggressive skin cancer, which is associated in 80% of cases with the Merkel cell polyomavirus (MCPyV). Advanced stages respond to immune checkpoint inhibitors in 50% of cases. Major issues remain unanswered regarding its oncogenesis and optimal treatment. Recent findings MCPyV-negative and MCPyV-positive MCCs have been hypothesized to derive from distinct cells, although the cell of origin remains a matter of debate. The crucial role the MCPyV small T oncoprotein was recently confirmed by its ability to inactivate p53, together with its contribution to the me...
Source: Current Opinion in Oncology - Category: Cancer & Oncology Tags: MELANOMA AND OTHER SKIN NEOPLASMS: Edited by Céleste Lebbe Source Type: research
Over the past several years, a wave of new cancer immunotherapy agents referred to as immune checkpoint inhibitors (ICIs) have transformed the standard of care for patients with cancer. ICIs are most commonly used in advanced cancers with palliative intent and recently as frontline therapy for some cancers. These new agents have been shown to extend overall survival (OS) and progression free survival (PFS) in patients with lung cancer, melanoma, Hodgkin lymphoma, renal cell carcinoma, urothelial carcinoma, Merkel cell carcinoma, head and neck cancer, and more.
Source: Journal of Pain and Symptom Management - Category: Palliative Care Authors: Source Type: research
Publication date: Available online 3 January 2020Source: Seminars in Cancer BiologyAuthor(s): Kelly Olino, Tristen Park, Ntia AhujaAbstractAdvances in immunotherapy, most notably antibodies targeting the inhibitory immune receptors cytotoxic T-lymphocyte associated protein 4 (CTLA-4/CD152), programmed death protein 1 (PD-1/CD279) and programmed death-ligand 1 (PD-L1/B7H1/CD274) have become effective standard therapies in advanced malignancies including melanoma,1–4 merkel cell carcinoma5, urological cancers6–8, non-small cell lung cancer9–11, mis-match repair (MMR) deficient tumors12, and Hodgkin lymphoma...
Source: Seminars in Cancer Biology - Category: Cancer & Oncology Source Type: research
Publication date: Available online 11 December 2019Source: Best Practice &Research Clinical Endocrinology &MetabolismAuthor(s): Giusy Elia, Silvia Martina Ferrari, Maria Rosaria Galdiero, Francesca Ragusa, Sabrina Rosaria Paparo, Ilaria Ruffilli, Gilda Varricchi, Poupak Fallahi, Alessandro AntonelliAbstractAnticancer immunotherapy, in the form of immune checkpoint inhibition (ICI), is a paradigm shift that has transformed the care of patients with different types of solid and hematologic cancers. The most notable improvements have been seen in patients with melanoma, non-small-cell lung, bladder, renal, cervical, u...
Source: Best Practice and Research Clinical Endocrinology and Metabolism - Category: Endocrinology Source Type: research
CONCLUSION: irPR features are consistent across tumor types and treatment settings. Standardized, pan-tumor immune-mediated pathologic response criteria (irPRC) are defined and associated specimen-handling considerations are described. Future, prospective studies are merited to validate irPRC in larger datasets and to associate pathologic features with long-term patient outcomes. PMID: 31672770 [PubMed - as supplied by publisher]
Source: Clinical Cancer Research - Category: Cancer & Oncology Authors: Tags: Clin Cancer Res Source Type: research
Publication date: Available online 28 October 2019Source: Journal of Geriatric OncologyAuthor(s): Andrea Sbrana, Rachele Antognoli, Giuseppe Pasqualetti, Giuseppe Linsalata, Chukwma Okoye, Valeria Calsolaro, Federico Paolieri, Francesco Bloise, Sergio Ricci, Andrea Antonuzzo, Fabio MonzaniAbstractBackgroundOlder adults with cancer are less likely to be offered treatment for cost-benefit concern. The Multi-Prognostic Index (MPI) has been validated in various clinical settings for survival estimation. We aimed to evaluate MPI as a screening tool for older adults with cancer eligible to receive immunotherapy.Patients and Meth...
Source: Journal of Geriatric Oncology - Category: Cancer & Oncology Source Type: research
Authors: Kamińska-Winciorek G, Cybulska-Stopa B, Lugowska I, Ziobro M, Rutkowski P Abstract The introduction of immunotherapy into the treatment of cancer patients has revolutionised the oncological approach and significantly improved patient survival. The key drugs are immune checkpoint inhibitors (CPIs), whose mechanism of action is to elicit immune response against cancer cell antigens. Three types of CPIs are currently used and approved: an anti-CTLA-4 antibody, ipilimumab; anti-PD-1 antibodies, nivolumab and pembrolizumab; and anti-PD-L1 antibodies: atezolizumab, avelumab and durvalumab. CPIs have been widely...
Source: Advances in Dermatology and Allergology - Category: Dermatology Tags: Postepy Dermatol Alergol Source Type: research
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