Misexpression of LINC01410, FOSL1, and MAFB in peripheral blood mononuclear cells associated with diabetic nephropathy

Asadollahi, Samira; Hadizadeh, Morteza; Namiranian, Nasim; Kalantar, Seyed Mehdi; Firoozabadi, Ali; Injinari, Nastaran

doi:10.1016/j.gene.2023.147265

Gene

2023

DOI: 10.1016/j.gene.2023.147265

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Misexpression of LINC01410, FOSL1, and MAFB in peripheral blood mononuclear cells associated with diabetic nephropathy

Samira Asadollahi

Morteza Hadizadeh

Nasim Namiranian

et al.

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2024

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FOSL2 activates TGF‐β1‐mediated GLUT1/mTOR signaling to promote diabetic kidney disease

He,

Xia,

Ying

et al. 2024

J of Diabetes Invest

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Aims/IntroductionDiabetic kidney disease (DKD) is a major cause of kidney failure. FOS‐like antigen 2 (FOSL2) has been revealed to be increased in kidney biopsies of patients with lupus nephritis, while its association with DKD remains unsolved. This study aimed to characterize the role of FOSL2 in DKD and its mechanism.MethodThe kidney tissues of DKD mice induced by STZ and a high‐fat diet were subjected to PAS and Masson's staining. Glomerular mesangial cells (MCs) were treated with high glucose (HG) or normal glucose (NG). CCK‐8 and EdU assays were performed to detect cell proliferation, and immunoblotting was conducted to analyze ECM deposition. ChIP‐qPCR was performed on MCs to detect the binding of FOSL2 on the TGF‐β1 promoter and a dual‐luciferase assay to detect the impact of FOSL2 on the transcription of the TGF‐β1 promoter.ResultsFOSL2 was elevated in the kidney tissues of DKD mice. Knockdown of FOSL2 reduced the mRNA expression of TGF‐β1 to decrease the protein expression of GLUT1 and mTOR in the kidney tissues of DKD mice, and TGF‐β1 reversed the effects caused by knockdown of FOSL2. The mTOR inhibitor Rapamycin alleviated kidney injury in the presence of FOSL2. Knockdown of FOSL2 inhibited the proliferation and improved ECM deposition of MCs, which were reversed by TGF‐β1. Rapamycin and GLUT1 inhibitor BAY‐876 reversed the promotion effect of FOSL2 on the proliferation of NG‐MCs/HG‐MCs and improved ECM deposition of MCs.ConclusionsOur data demonstrated that FOSL2 accentuates DKD in mice by increasing TGF‐β1‐induced GLUT1/mTOR signaling.

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FOSL2 activates TGF‐β1‐mediated GLUT1/mTOR signaling to promote diabetic kidney disease

He,

Xia,

Ying

et al. 2024

J of Diabetes Invest

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Misexpression of LINC01410, FOSL1, and MAFB in peripheral blood mononuclear cells associated with diabetic nephropathy

Cited by 1 publication

References 41 publications

FOSL2 activates TGF‐β1‐mediated GLUT1/mTOR signaling to promote diabetic kidney disease

FOSL2 activates TGF‐β1‐mediated GLUT1/mTOR signaling to promote diabetic kidney disease

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