PMID- 36077377 OWN - NLM STAT- MEDLINE DCOM- 20220912 LR - 20220913 IS - 1422-0067 (Electronic) IS - 1422-0067 (Linking) VI - 23 IP - 17 DP - 2022 Sep 1 TI - Nephritis-Associated Plasmin Receptor (NAPlr): An Essential Inducer of C3-Dominant Glomerular Injury and a Potential Key Diagnostic Biomarker of Infection-Related Glomerulonephritis (IRGN). LID - 10.3390/ijms23179974 [doi] LID - 9974 AB - Nephritis-associated plasmin receptor (NAPlr) was originally isolated from the cytoplasmic fraction of group A Streptococci, and was found to be the same molecule as streptococcal glyceraldehyde-3-phosphate dehydrogenase (GAPDH) and plasmin receptor (Plr) on the basis of nucleotide and amino acid sequence homology. Its main functions include GAPDH activity, plasmin-binding capacity, and direct activation of the complement alternative pathway (A-P). Plasmin trapped by deposited NAPlr triggers the degradation of extracellular matrix proteins, such as glomerular basement membranes and mesangial matrix, and the accumulation of macrophages and neutrophils, leading to the induction of plasmin-related endocapillary glomerular inflammation. Deposited NAPlr at glomerular endocapillary site directly activates the complement A-P, and the endocapillary release of complement-related anaphylatoxins, C3a and C5a, amplify the in situ endocapillary glomerular inflammation. Subsequently, circulating and in situ-formed immune complexes participate in the glomerular injury resulting in NAPlr-mediated glomerulonephritis. The disease framework of infection-related glomerulonephritis (IRGN) has been further expanded. GAPDH of various bacteria other than Streptococci have been found to react with anti-NAPlr antibodies and to possess plasmin-binding activities, allowing glomerular NAPlr and plasmin activity to be utilized as key biomarkers of IRGN. FAU - Yoshizawa, Nobuyuki AU - Yoshizawa N AD - Division of Nephrology, Showanomori Hospital, Tokyo 196-0024, Japan. FAU - Yamada, Muneharu AU - Yamada M AUID- ORCID: 0000-0003-0483-0012 AD - Department of Nephrology and Blood Purification, Kidney Disease Center, Tokyo Medical University Hachioji Medical Center, Tokyo 193-0998, Japan. FAU - Fujino, Masayuki AU - Fujino M AD - National Institute of Infectious Disease, Tokyo 162-8640, Japan. FAU - Oda, Takashi AU - Oda T AD - Department of Nephrology and Blood Purification, Kidney Disease Center, Tokyo Medical University Hachioji Medical Center, Tokyo 193-0998, Japan. LA - eng PT - Journal Article PT - Review DEP - 20220901 PL - Switzerland TA - Int J Mol Sci JT - International journal of molecular sciences JID - 101092791 RN - 0 (Biomarkers) RN - 0 (Receptors, Peptide) RN - 0 (plasmin receptor) RN - EC 1.2.1.- (Glyceraldehyde-3-Phosphate Dehydrogenases) RN - EC 3.4.21.7 (Fibrinolysin) SB - IM MH - Biomarkers MH - Fibrinolysin MH - *Glomerulonephritis/metabolism MH - Glyceraldehyde-3-Phosphate Dehydrogenases MH - Humans MH - Inflammation MH - *Nephritis MH - Receptors, Peptide MH - *Streptococcal Infections PMC - PMC9456382 OTO - NOTNLM OT - C3-dominant glomerular injury OT - NAPlr (Bacterial GAPDH) mediated glomerulonephritis OT - immune complex-dominant glomerular injury OT - infection-related glomerulonephritis (IRGN) OT - nephritis-associated plasmin receptor (NAPlr) OT - poststreptococcal acute glomerulonephritis (PSAGN) COIS- The authors declare no conflict of interest. EDAT- 2022/09/10 06:00 MHDA- 2022/09/14 06:00 PMCR- 2022/09/01 CRDT- 2022/09/09 01:08 PHST- 2022/07/03 00:00 [received] PHST- 2022/08/11 00:00 [revised] PHST- 2022/08/16 00:00 [accepted] PHST- 2022/09/09 01:08 [entrez] PHST- 2022/09/10 06:00 [pubmed] PHST- 2022/09/14 06:00 [medline] PHST- 2022/09/01 00:00 [pmc-release] AID - ijms23179974 [pii] AID - ijms-23-09974 [pii] AID - 10.3390/ijms23179974 [doi] PST - epublish SO - Int J Mol Sci. 2022 Sep 1;23(17):9974. doi: 10.3390/ijms23179974.