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Melanoma antigen genes (MAGE); novel functional targets in multiple myeloma.

Semin Hematol

October 2024

Multiple Myeloma Center of Excellence, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York NY USA; The Multiple Myeloma Research Foundation, Norwalk, CT. Electronic address:

Melanoma Antigen Genes (MAGE) are expressed in a broad range of cancers, including multiple myeloma. MAGE have been under investigation for more than 3 decades as targets for immune therapy, while in parallel, interrogation of their functions has revealed activities that may be particularly critical in multiple myeloma. MAGE-C1 is expressed in about 75% of newly diagnosed cases and this is maintained through the natural history of the disease.

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Development of Ligands and Degraders Targeting MAGE-A3.

J Am Chem Soc

September 2024

Department of Molecular, Cellular, and Developmental Biology, Yale University, New Haven, Connecticut 06511, United States.

Type I melanoma antigen (MAGE) family members are detected in numerous tumor types, and expression is correlated with poor prognosis, high tumor grade, and increased metastasis. Type I MAGE proteins are typically restricted to reproductive tissues, but expression can recur during tumorigenesis. Several biochemical functions have been elucidated for them, and notably, MAGEs regulate proteostasis by serving as substrate recognition modules for E3 ligase complexes.

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Article Synopsis
  • MAGE-A is a cancer-associated antigen expressed in various tumors but has limited presence in normal tissues; this study focused on its expression in urinary bladder and lung cancers while evaluating the immune environment.
  • The researchers analyzed MAGE-A and PD-L1 levels in tumor samples using immunohistochemistry and RNA sequencing, finding that 57% of samples showed detectable MAGE-A expression, with no significant difference between the two cancer types.
  • Treatment with checkpoint inhibitors did not alter MAGE-A expression or other immune markers in urothelial carcinoma, suggesting that previous tumor samples can still be useful for evaluating MAGE-targeted treatments.
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Gastroesophageal adenocarcinoma (GEAC) poses a significant challenge due to its poor prognosis and limited treatment options. Recently, Cancer/testis antigens (CTAs) have emerged as potential therapy targets due to their high expression in tumor cells and their immunogenic nature. We aimed to explore the expression and co-expression of CTAs in GEAC.

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Gastroesophageal adenocarcinoma (GEAC) poses a significant challenge due to its poor prognosis and limited treatment options. Recently, Cancer/testis antigens (CTAs) have emerged as potential therapy targets due to their high expression in tumor cells and their immunogenic nature. We aimed to explore the expression and co-expression of CTAs in GEAC.

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