PMID- 33505115 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220202 IS - 0920-9069 (Print) IS - 1573-0778 (Electronic) IS - 0920-9069 (Linking) VI - 73 IP - 1 DP - 2021 Feb TI - The inhibition of HeLa cells proliferation through SPARCL1 mediated by SPP1. PG - 71-78 LID - 10.1007/s10616-020-00443-2 [doi] AB - Secreted protein acidic and rich in cysteines-like 1 (SPARCL1) is implicated in tumor progression and considered as a tumor suppressor. Aim of the study is to investigate the role of SPARCL1 in the regulation of tumor biology. SPARCL1 expression in human cervical cells was determined through western blot and RT-PCR. The effects of SPARCL1 overexpression on cell proliferation, migration and invasion were evaluated through CCK8 assay, colony formation assay, Wound healing assay and Transwell assay, respectively. The gain function of Secreted phosphor protein 1 (SPP1) was also evaluated in these cell functions. We observed that SPARCL1 expression at protein levels and transcription levels was lower in HeLa cells than that in Ect1/E6E7 cells. When SPARCL1 was overexpressed in HeLa cells, cell proliferation, migration and invasion were greatly repressed. Additionally, SPARCL1 overexpression markedly downregulated SPP1 expression at transcription levels. Mechanistical study revealed that SPP1 overexpression could greatly counteract the effects of SPARCL1 overexpression on the aforementioned cell processes and inhibit the phosphorylation of focal adhesion kinase (FAK) and extracellular regulated protein kinases (ERK). Our findings indicated that HeLa cells overexpressing SPARCL1 showed weaker abilities of proliferation, migration and invasion, and its effects could be neutralized by SPP1 overexpression possibly via FAK/ERK pathway. The relationship of SPARCL1 and SPP1 could help us to further understand the pathogenesis of cervical cancer and SPARCL1/SPP1 could be beneficial therapeutic targets in cervical cancer. CI - (c) The Author(s), under exclusive licence to Springer Nature B.V. part of Springer Nature 2021. FAU - Zhang, Shengpeng AU - Zhang S AD - Department of Obstetrics and Gynecology, Beijing Tiantan Hospital, Capital Medical University, No. 119 South Fourth Ring West Road, Fengtai District, Beijing, 100070 P.R. China. GRID: grid.24696.3f. ISNI: 0000 0004 0369 153X FAU - Zhang, Fengge AU - Zhang F AD - Department of Obstetrics and Gynecology, Shunyi Maternal and Children's Hospital of Beijing Children's Hospital, Beijing, 101300 P.R. China. GRID: grid.411609.b FAU - Feng, Limin AU - Feng L AD - Department of Obstetrics and Gynecology, Beijing Tiantan Hospital, Capital Medical University, No. 119 South Fourth Ring West Road, Fengtai District, Beijing, 100070 P.R. China. GRID: grid.24696.3f. ISNI: 0000 0004 0369 153X LA - eng PT - Journal Article DEP - 20210103 PL - United States TA - Cytotechnology JT - Cytotechnology JID - 8807027 PMC - PMC7817754 OTO - NOTNLM OT - Cervical cancer OT - FAK/ERK OT - SPARCL1 OT - SPP1 COIS- Conflict of interestAll authors declare no conflict of interest. EDAT- 2021/01/29 06:00 MHDA- 2021/01/29 06:01 PMCR- 2022/02/01 CRDT- 2021/01/28 05:41 PHST- 2020/10/14 00:00 [received] PHST- 2020/11/19 00:00 [accepted] PHST- 2021/01/28 05:41 [entrez] PHST- 2021/01/29 06:00 [pubmed] PHST- 2021/01/29 06:01 [medline] PHST- 2022/02/01 00:00 [pmc-release] AID - 443 [pii] AID - 10.1007/s10616-020-00443-2 [doi] PST - ppublish SO - Cytotechnology. 2021 Feb;73(1):71-78. doi: 10.1007/s10616-020-00443-2. Epub 2021 Jan 3.