Programmed Cell Death Ligand 1 (PD-L1) and major Histocompatibility Complex Class I (MHC Class I) Expression Patterns and Their Pathologic Associations in triple-Negative Breast Cancer by Kaewkedsri P, Intarawichian P, Jessadapattarakul S, Kunprom W, Koonmee S, Thanee M, Somintara O, Wongbuddha A, Chadbunchachai P, Nawapun S, Aphivatanasiri C

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Tumor venéreo transmissível canino com resistência quimioterápica e metástase esplênica. Relato de caso by A. P. Duzanski, A. D. Ortiz, H. B. Fêo, M. W. Fonseca, M. M. Flórez, L. T Rodrigues, F. Michelon, N. S. Rocha

“…After the cytological, histological and cytogenetic diagnostic, the primary tumor was still characterized in progression phase and showed low major histocompatibility complex expression MHC (4,4 ± 2% class I e 11 ± 4,1% class II. …”
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Exosomes, their sources, and possible uses in cancer therapy in the era of personalized medicine by Tomas Zemanek, Lubos Danisovic, Andreas Nicodemou

“…Their potential as anticancer vaccines arise from the capacity to carry antigens and major histocompatibility complex (MHC) molecules. Exosomes derived from blood, saliva, urine, and cerebrospinal fluid serve as promising biomarkers for cancer diagnosis and prognosis. …”
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Mechanism of modified mRNA structure in COVID-19 vaccines for inducing neutralizing antibodies by Sabighoh Zanjabila, Beti Ernawati Dewi

“…Antigen-presenting cells (APCs) present the vaccine antigens via major histocompatibility complex (MHC) class I and II pathways, with CD8+ T cells recognizing MHC class I and destroying infected cells, while CD4+ T cells recognize MHC class II and assist in B cell maturation and antibody production. …”
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Fifty years after the discovery of the association of HLA B27 with ankylosing spondylitis by Joachim Sieper, Juergen Braun

“…The human lymphocyte antigen B27 (HLA B27) is a member of the HLA class I family of genes in the major histocompatibility complex whose name goes back to its discovery in studies of transplanted tissue compatibility. …”
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CD47/SIRPα axis: bridging innate and adaptive immunity by Sjoerd H van der Burg, Anneloes van Duijn, Ferenc A Scheeren

“…Furthermore, we discuss the interconnection between the myeloid CD47/SIRPα axis and adaptive T cell responses as well as the potential therapeutic role of the CD47/SIRPα axis in tumors with acquired resistance to the classic immunotherapy through major histocompatibility complex downregulation. Altogether this review provides a profound insight for the optimal exploitation of CD47/SIRPα immune checkpoint therapy.…”
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Trogocytosis-mediated immune evasion in the tumor microenvironment by Jeonghyun Kim, Soyeon Park, Jungseo Kim, Yewon Kim, Hong Min Yoon, Bima Rexa Rayhan, Jaekwang Jeong, Alfred L. M. Bothwell, Jae Hun Shin

“…For example, CD4 T cells engaging with antigen-presenting cells undergo trogocytosis, which facilitates the transfer of antigen-loaded major histocompatibility complex (MHC) class II molecules from antigen-presenting cells to CD4 T cells. …”
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Timosin alpha-1 immunomodulating properties by M. V. Mayevskaya

“…Direct antiviral mechanism of Timosin alpha-1 consists in increase of expression of major histocompatibility complex molecules of the 1st class on infected cells and direct suppression of virus replication, and also in elevation of endocellular level of glutathione. …”
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Helicobacter pylori CagA+ strains modulate colorectal pathology by regulating intestinal flora by Shasha Cui, Xinqiang Liu, Fengxia Han, Lu Zhang, Jingjing Bu, Sainan Wu, Jiafen Wang

“…Gastric mucosa was collected for Giemsa staining, and colorectal mucosa was for hematoxylin and eosin (H&E) staining, 16 S ribosomal RNA (rRNA) sequencing and immunohistochemistry for Major Histocompatibility Complex (MHC). Colon tissues and serum from caudal vein was collected for quantification of interleukin (IL)-6, IL-8, IL10 and tumor necrosis factor (TNF-α). …”
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Genome-wide association study of the antibody response to <i>Corynebacterium pseudotuberculosis</i> in sheep by J. Kyselová, L. Tichý, J. Marková, A. Gurgul, Z. Sztankóová, K. Vališ, S. Šlosárková, K. Kavanová, M. Beinhauerová, T. Szmatola, T. Szmatola

“…These include antigen processing and presentation of exogenous peptides via major histocompatibility complex (MHC) class I and II, Th17 mucosal cell differentiation, cellular autophagy, and phagosome-related mechanisms. …”
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