PMID- 34033869 OWN - NLM STAT- MEDLINE DCOM- 20210712 LR - 20220531 IS - 1873-7544 (Electronic) IS - 0306-4522 (Linking) VI - 467 DP - 2021 Jul 15 TI - Characterization of Hevin (SPARCL1) Immunoreactivity in Postmortem Human Brain Homogenates. PG - 91-109 LID - S0306-4522(21)00256-6 [pii] LID - 10.1016/j.neuroscience.2021.05.017 [doi] AB - Hevin is a matricellular glycoprotein that plays important roles in neural developmental processes such as neuronal migration, synaptogenesis and synaptic plasticity. In contrast to other matricellular proteins whose expression decreases when development is complete, hevin remains highly expressed, suggesting its involvement in adult brain function. In vitro studies have shown that hevin can have different post-translational modifications. However, the glycosylation pattern of hevin in the human brain remains unknown, as well as its relative distribution and localization. The present study provides the first thorough characterization of hevin protein expression by Western blot in postmortem adult human brain. Our results demonstrated two major specific immunoreactive bands for hevin: an intense band migrating around 130 kDa, and a band migrating around 100 kDa. Biochemical assays revealed that both hevin bands have a different glycosylation pattern. Subcellular fractionation showed greater expression in membrane-enriched fraction than in cytosolic preparation, and a higher expression in prefrontal cortex (PFC) compared to hippocampus (HIP), caudate nucleus (CAU) and cerebellum (CB). We confirmed that a disintegrin and metalloproteinase with thrombospondin motifs 4 (ADAMTS4) and matrixmetalloproteinase 3 (MMP-3) proteases digestion led to an intense double band with similar molecular weight to that described as SPARC-like fragment (SLF). Finally, hevin immunoreactivity was also detected in human astrocytoma, meningioma, cerebrospinal fluid and serum samples, but was absent from any blood cell type. CI - Copyright (c) 2021 IBRO. Published by Elsevier Ltd. All rights reserved. FAU - Nunez-delMoral, Amaia AU - Nunez-delMoral A AD - Department of Pharmacology, University of the Basque Country, UPV/EHU, Leioa, Bizkaia, Spain; Centro de Investigacion Biomedica en Red de Salud Mental (CIBERSAM), Spain. FAU - Brocos-Mosquera, Iria AU - Brocos-Mosquera I AD - Department of Pharmacology, University of the Basque Country, UPV/EHU, Leioa, Bizkaia, Spain; Centro de Investigacion Biomedica en Red de Salud Mental (CIBERSAM), Spain. FAU - Vialou, Vincent AU - Vialou V AD - Sorbonne Universite, Neuroscience Paris Seine - IBPS, Team Neurobiology of Psychiatric Disorders, Paris, France; CNRS UMR8246, Neuroscience Paris Seine - IBPS, Team Neurobiology of Psychiatric Disorders, Paris, France; Inserm U1130, Neuroscience Paris Seine - IBPS, Team Neurobiology of Psychiatric Disorders, Paris, France. Electronic address: vincent.vialou@inserm.fr. FAU - Callado, Luis F AU - Callado LF AD - Department of Pharmacology, University of the Basque Country, UPV/EHU, Leioa, Bizkaia, Spain; Centro de Investigacion Biomedica en Red de Salud Mental (CIBERSAM), Spain; BioCruces Bizkaia Health Research Institute, Barakaldo, Bizkaia, Spain. FAU - Erdozain, Amaia M AU - Erdozain AM AD - Department of Pharmacology, University of the Basque Country, UPV/EHU, Leioa, Bizkaia, Spain; Centro de Investigacion Biomedica en Red de Salud Mental (CIBERSAM), Spain. Electronic address: amaia_erdozain@ehu.eus. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20210524 PL - United States TA - Neuroscience JT - Neuroscience JID - 7605074 RN - 0 (Calcium-Binding Proteins) RN - 0 (Extracellular Matrix Proteins) RN - 0 (Osteonectin) RN - 0 (SPARCL1 protein, human) SB - IM MH - Adult MH - Blotting, Western MH - Brain/metabolism MH - Calcium-Binding Proteins MH - Cerebellum/metabolism MH - *Extracellular Matrix Proteins/metabolism MH - Humans MH - Neurogenesis MH - *Osteonectin/metabolism OTO - NOTNLM OT - SPARCL1 OT - Western blot OT - hevin OT - human brain OT - postmortem EDAT- 2021/05/26 06:00 MHDA- 2021/07/13 06:00 CRDT- 2021/05/25 20:12 PHST- 2021/03/12 00:00 [received] PHST- 2021/05/12 00:00 [revised] PHST- 2021/05/13 00:00 [accepted] PHST- 2021/05/26 06:00 [pubmed] PHST- 2021/07/13 06:00 [medline] PHST- 2021/05/25 20:12 [entrez] AID - S0306-4522(21)00256-6 [pii] AID - 10.1016/j.neuroscience.2021.05.017 [doi] PST - ppublish SO - Neuroscience. 2021 Jul 15;467:91-109. doi: 10.1016/j.neuroscience.2021.05.017. Epub 2021 May 24.