Macrophage Migration Inhibitory Factor (MIF) Modulates Trophic Signaling Through Interaction with Serine Protease HTRA1
Overview
Authors
Affiliations
Macrophage migration inhibitory factor (MIF), a small conserved protein, is abundant in the immune- and central nervous system (CNS). MIF has several receptors and binding partners that can modulate its action on a cellular level. It is upregulated in neurodegenerative diseases and cancer although its function is far from clear. Here, we report the finding of a new binding partner to MIF, the serine protease HTRA1. This enzyme cleaves several growth factors, extracellular matrix molecules and is implicated in some of the same diseases as MIF. We show that the function of the binding between MIF and HTRA1 is to inhibit the proteolytic activity of HTRA1, modulating the availability of molecules that can change cell growth and differentiation. MIF is therefore the first endogenous inhibitor ever found for HTRA1. It was found that both molecules were present in astrocytes and that the functional binding has the ability to modulate astrocytic activities important in development and disease of the CNS.
MIF promotes Th17 cell differentiation in rheumatoid arthritis through ATF6 signal pathway.
Yan G, Song R, Zhang J, Li Z, Lu Z, Liu Z Mol Med. 2024; 30(1):237.
PMID: 39614150 PMC: 11605992. DOI: 10.1186/s10020-024-01005-4.
Xuan W, Xie W, Li F, Huang D, Zhu Z, Lin Y J Cereb Blood Flow Metab. 2022; 43(3):341-356.
PMID: 36369735 PMC: 9941868. DOI: 10.1177/0271678X221138412.
An allosteric HTRA1-calpain 2 complex with restricted activation profile.
Rey J, Breiden M, Lux V, Bluemke A, Steindel M, Ripkens K Proc Natl Acad Sci U S A. 2022; 119(14):e2113520119.
PMID: 35349341 PMC: 9168489. DOI: 10.1073/pnas.2113520119.
Macrophage migration inhibitory factor family proteins are multitasking cytokines in tissue injury.
Song S, Xiao Z, Dekker F, Poelarends G, Melgert B Cell Mol Life Sci. 2022; 79(2):105.
PMID: 35091838 PMC: 8799543. DOI: 10.1007/s00018-021-04038-8.
The Role of Network Science in Glioblastoma.
Lopes M, Martins E, Vinga S, Costa B Cancers (Basel). 2021; 13(5).
PMID: 33801334 PMC: 7958335. DOI: 10.3390/cancers13051045.