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Unlabelled: Considering the similarity in clinical presentations of iris neoplasms of various origins, questions of their noninvasive diagnosis remain relevant. Optical coherence tomography angiography (OCT-A) is one of the imaging method that enables visualization of tumor vessels.
Purpose: This article examines the features of angioarchitecture, vascular network density, and perfusion density of iris melanoma and progressive iris nevus using OCT-A.
Combined immunohistochemistry of PRAME and p16 in the differentiation of melanocytic neoplasms, with a detailed focus on acral lesions.
Diagn Pathol
December 2024
Department of Pathology, Hospital for Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, 210042, China.
Background: Isolated immunohistochemical indicators are limited to diagnose melanocytic neoplasms. This retrospective study is to assess the diagnostic value of combined immunohistochemical analysis targeting preferentially expressed antigen in melanoma (PRAME) and p16 in melanocytic neoplasms, with a detailed focus on arcal lesions.
Methods: This was a single center cohort study from January 2022 to June 2023.
ASO Author Reflections: Is Sentinel Node Biopsy Still of Value for Patients with High-Risk Primary Melanomas Eligible for Adjuvant Immunotherapy?
Ann Surg Oncol
December 2024
Melanoma Institute Australia, Wollstonecraft, NSW, Australia.
Potent prophylactic cancer vaccines harnessing surface antigens shared by tumour cells and induced pluripotent stem cells.
Nat Biomed Eng
December 2024
CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, P. R. China.
The development of prophylactic cancer vaccines typically involves the selection of combinations of tumour-associated antigens, tumour-specific antigens and neoantigens. Here we show that membranes from induced pluripotent stem cells can serve as a tumour-antigen pool, and that a nanoparticle vaccine consisting of self-assembled commercial adjuvants wrapped by such membranes robustly stimulated innate immunity, evaded antigen-specific tolerance and activated B-cell and T-cell responses, which were mediated by epitopes from the abundant number of antigens shared between the membranes of tumour cells and pluripotent stem cells. In mice, the vaccine elicited systemic antitumour memory T-cell and B-cell responses as well as tumour-specific immune responses after a tumour challenge, and inhibited the progression of melanoma, colon cancer, breast cancer and post-operative lung metastases.
View Article and Find Full Text PDFBee pollen peptides as potent tyrosinase inhibitors with anti-melanogenesis effects in murine b16f10 melanoma cells and zebrafish embryos.
Sci Rep
December 2024
Center of Excellence in Bioconversion and Bioseparation for Platform Chemical Production, Institute of Biotechnology and Genetic Engineering, Chulalongkorn University, 254 Phayathai Road, Pathumwan, Bangkok, 10330, Thailand.
One important functional food ingredient today, valued for its health properties and ability to prevent disease, is bee pollen, which comprises a combination of nectar, pollen from plants, and the secretions of bees. In this research, the tyrosinase (TYR) inhibiting abilities of the peptides derived from bee pollen protein hydrolysates are investigated. Various proteases were utilized to generate these peptides, followed by testing at different concentrations.
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