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The SLAMF family (SLAMF) of cell surface glycoproteins is comprised of nine glycoproteins and while SLAMF1, 3, 5, 6, 7, 8, and 9 are self-ligand receptors, SLAMF2 and SLAMF4 interact with each other. Their interactions induce signal transduction networks in trans, thereby shaping immune cell-cell communications. Collectively, these receptors modulate a wide range of functions, such as myeloid cell and lymphocyte development, and T and B cell responses to microbes and parasites. In addition, several SLAMF receptors serve as microbial sensors, which either positively or negatively modulate the function of macrophages, dendritic cells, neutrophils, and NK cells in response to microbial challenges. The SLAMF receptor-microbe interactions contribute both to intracellular microbicidal activity as well as to migration of phagocytes to the site of inflammation. In this review, we describe the current knowledge on how the SLAMF receptors and their specific adapters SLAM-associated protein and EAT-2 regulate innate and adaptive immune responses to microbes.
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http://dx.doi.org/10.3389/fimmu.2016.00004 | DOI Listing |
Oncoimmunology
December 2025
Department for Cell and Gene Therapy Development, Fraunhofer Institute for Cell Therapy and Immunology (IZI), Leipzig, Germany.
CAR-based cell therapies have shown clinical success in treating various cancers, with CAR T cell therapies entering the clinical route and CAR NK cell therapies being evaluated in early-stage clinical trials. A key challenge is the presence of tumor-associated antigens on healthy cells, risking on-target off-tumor toxicities. Our comparative analysis of CAR T and CAR NK cells targeting the multiple myeloma-associated antigens BCMA, SLAMF7, and CD38 revealed that antigen density on target cells significantly modulates CAR NK cell activation and cytotoxicity.
View Article and Find Full Text PDFFront Immunol
September 2025
Department of Experimental Pediatrics, University Hospital, Otto-von-Guericke-University, Magdeburg, Germany.
Tumors frequently evade immune destruction by impairing cytotoxic CD8 T-cell responses, highlighting the need for strategies that restore T-cell functionality. Here, we identify SLAMF7 (CD319) as a key enhancer of human CD8 T-cell responses against tumors. SLAMF7 expression is induced by pro-inflammatory signals such as IL-12 and CD28 co-stimulation.
View Article and Find Full Text PDFAm J Mens Health
September 2025
Department of Clinical Medicine, North Sichuan Medical College, Nanchong, China.
Erectile dysfunction (ED) is a multifactorial disorder that significantly impacts men's physical and mental health, as well as their interpersonal relationships, and traditional treatment options for this condition still face many challenges and limitations. This study aimed to identify key genetic factors associated with ED risk through Mendelian randomization analysis by integrating data from expression quantitative trait loci and protein quantitative trait loci across multiple cohorts. We also evaluated the roles of metabolic pathways using data from 1,400 plasma metabolites.
View Article and Find Full Text PDFSci Rep
August 2025
Division of Radiation Biomedical Research, Korea Institute of Radiological & Medical Sciences, 75 nowon-ro, nowon-gu, Seoul, 01812, Republic of Korea.
Signaling lymphocytic activation molecule (SLAM) family receptors are widely expressed on immune cells, often acting as self-ligands and playing crucial roles in cellular communication and adhesion, thereby modulating immune responses. Several studies have demonstrated that SLAM family receptors are associated with potential immune checkpoints on T cells and play a role in tumor immunity in various cancers. However, the effect of SLAMF1 expression in tumors has been rarely investigated.
View Article and Find Full Text PDFCell Biol Int
August 2025
Department of Public Health and Healthcare Management, Rector, Samarkand State Medical University, 18, Amir Temur Street, Samarkand, Uzbekistan.
The Signaling Lymphocytic Activation Molecule (SLAM) family receptors play essential roles in regulating immune cell activation, differentiation, and communication. SLAMF5, also known as CD84, has drawn increasing attention in cancer immunology due to its involvement in both tumor progression and immune modulation. This review explores the expression patterns, signaling mechanisms, and functional roles of SLAMF5/CD84 within the tumor microenvironment.
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