Impact of Hypoxia-Inducible Factor-1α on Host Immune Metabolism and Tissue Damage During Mycobacterium bovis Infection.

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Tác giả: Yulan Chen, Yuhui Dong, Xin Ge, Yiduo Liu, Meizhen Long, Yue Nan, Yuanzhi Wang, Xiangmei Zhou

Ngôn ngữ: eng

Ký hiệu phân loại:

Thông tin xuất bản: United States : The Journal of infectious diseases , 2025

Mô tả vật lý:

Bộ sưu tập: NCBI

ID: 215030

Hypoxia-inducible factor-1α (HIF-1α) is a pivotal regulator of metabolic and inflammatory responses. This study investigated the role of HIF-1α in Mycobacterium bovis infection and its effects on host immune metabolism and tissue damage. We evaluated the expression of immunometabolism markers and matrix metalloproteinases (MMPs) in cells infected with M. bovis, and following HIF-1α inhibition in vitro. To understand the implications of HIF-1α inhibition on disease progression, mice at different infection stages were treated with the HIF-1α inhibitor, YC-1. Our results revealed an upregulation of HIF-1α in macrophages after M. bovis infection, facilitating enhanced M1 macrophage polarization. Blockade of HIF-1α moderated these responses but escalated MMP activity, hindering bacterial control. Consistent with our in vitro results, early-stage treatment of mice with YC-1 aggravated pathological alterations and tissue damage, while late-stage HIF-1α inhibition proved beneficial in managing the disease. Our findings underscored the nuanced role of HIF-1α across different phases of M. bovis infection.
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