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. 2023 Jul 11;14:1156774. doi: 10.3389/fimmu.2023.1156774

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Copyright © 2023 Luo, Li, Wu, Yang, Ye, Hu, Gao, Zeng, Fei, Li and Jiang

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Transmission electron microscopic analysis of the ultrastructure of mitochondria in the immune cells of LSGs. (A) Representative TEM images demonstrating low levels of lymphocyte infiltration in the normal glandular tissue and interstitium and normal morphology of mitochondria and nuclei in lymphocytes. (B, C) TEM images validated that the number of abnormal mitochondria was increased in some tissue-invading lymphocytes (swollen mitochondria and intact nuclei membrane). (D) Schematic diagram demonstrating the accumulation of dysfunctional swollen mitochondria in some lymphocytes. Apoptotic lymphocytes may increase inflammation in the glandular microenvironment, thereby recruiting more immune cells.