title: B7‑H3 promotes cell migration and invasion through the Jak2/Stat3/MMP9 signaling pathway in colorectal cancer.
abstract: B7‑H3, a newly identified co‑stimulatory molecule, has been reported to be highly expressed in a number of types of cancer and is associated with a poor prognosis. Transwell experiments and a wound-healing assay were used to detect the role of over‑expressed B7‑H3 on cell migration and invasion in colorectal cancer (CRC) cells. The expression level of matrix metallopeptidase 9 (MMP‑9) was further investigated by zymography experiments and western blot analysis, and involvement of the Janus kinase 2 (Jak2) signal transducer and activator of transcription 3 (STAT3) signaling pathway was determined using AG490, a Jak2 selective inhibitor. Data showed that overexpression of B7‑H3 promoted cell migration and invasion in CRC. Further investigation certified that enhanced expression of B7‑H3 elevated MMP‑9 through upregulation of the Jak2‑Stat3 signaling pathway. Due to its pro‑migratory and pro‑invasive function, B7‑H3 may serve as a therapeutic target in the treatment of CRC.
authors.affiliation: Institute of Cancer, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu 214062, P.R. China.
authors.forename: Fen
authors.initials: F
authors.lastname: Liu
authors.affiliation: Institute of Cancer, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu 214062, P.R. China.
authors.forename: Ting
authors.initials: T
authors.lastname: Zhang
authors.affiliation: Institute of Cancer, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu 214062, P.R. China.
authors.forename: Shitao
authors.initials: S
authors.lastname: Zou
authors.affiliation: Department of Medical Oncology, Affiliated Hospital of Jiangnan University, Wuxi Cancer Institute, Wuxi, Jiangsu 214062, P.R. China.
authors.forename: Bo
authors.initials: B
authors.lastname: Jiang
authors.affiliation: Institute of Cancer, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu 214062, P.R. China.
authors.forename: Dong
authors.initials: D
authors.lastname: Hua
mesh_terms: D060887:B7 Antigens / Q000235:genetics*; D045744:Cell Line, Tumor; D002465:Cell Movement / Q000235:genetics*; D015179:Colorectal Neoplasms / Q000235:genetics* / Q000378:metabolism* / Q000473:pathology; D015870:Gene Expression; D006801:Humans; D053614:Janus Kinase 2 / Q000378:metabolism*; D020780:Matrix Metalloproteinase 9 / Q000378:metabolism*; D050796:STAT3 Transcription Factor / Q000378:metabolism*; D015398:Signal Transduction; D015854:Up-Regulation
chemical_list: D060887:B7 Antigens; C423237:CD276 protein, human; D050796:STAT3 Transcription Factor; D053614:Janus Kinase 2; D020780:Matrix Metalloproteinase 9