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Updated: Feb 2, 2026

Author Spotlight: Elucidating the Pathways of TFH Cell Differentiation in Acute LCMV Challenges
Published on: April 26, 2024
Long noncoding RNA Malat1 is not essential for T cell development and response to LCMV infection
Yingpeng Yao1,2, Wenhui Guo1,2, Jingjing Chen1,2
1a Beijing Advanced Innovation Center for Food Nutrition and Human Health , China Agricultural University , Beijing , China.
Abstract:
Long noncoding RNAs (lncRNAs) are emerging as critical mediators of various biological processes in the immune system. The current data showed that the lncRNA Malat1 is highly expressed in T cell subsets, but the function of Malat1 in T cell remains unclear. In this study, we detected the T cell development and both CD8+ and CD4+ T cell response to LCMV infection using Malat1-/- mice model. To our surprise, there were no significant defects in thymocytes at different developmental stages and the peripheral T cell pool with ablation of Malat1. During LCMV infection, Malat1-/- mice exhibited normal effector and memory CD8+ T cells as well as TFH cells differentiation. Our results indicated that Malat1 is not essential for T cell development and T cell-mediated antiviral response though it expresses at very high level in different T cell populations.
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