title: Hepatocyte Growth Factor Gene-Modified Mesenchymal Stem Cells Augment Sinonasal Wound Healing.
abstract: This study was designed to investigate the effects of hepatocyte growth factor (HGF) transgenic mesenchymal stem cells (HGF-MSCs) on wound healing in the sinonasal mucosa and nasal epithelial cells (NECs). We also sought to determine whether HGF-MSCs and MSCs can migrate into the injured mucosa and differentiate into ciliated cells. Human HGF-overexpressing umbilical cord MSCs (hHGF-UCMSCs) were established, and upregulation of hHGF expression was confirmed by real-time PCR (RT-PCR) and enzyme-linked immunosorbant assay (ELISA). To investigate the paracrine effect of human MSCs (hMSCs) on nasal epithelial repair, hMSC- and HGF-MSC-conditioned media (CM) were used in NEC proliferation assays and in an in vitro scratch-wound repair model. The in vivo sinonasal wound-healing model was established, and all enrolled rabbits were randomly assigned to four groups: the GFP-MSC group, the HGF-MSC group, the Ad-HGF group, and the surgery control group. The average decreased diameter was recorded, and the medial wall of the maxillary sinus was removed for histological analysis and scanning electron microscopy. Collagen deposition in the wound tissue was detected via Masson trichrome (M&T) staining. The distribution of MSCs and HGF-MSCs was observed by immunofluorescence. MSCs improved nasal wound healing both in vivo and in vitro. HGF overexpression in MSCs augmented the curative effects. Reduced collagen deposition and transforming growth factor beta1 (TGF-β1) expression were detected in the HGF-MSC group compared with the MSC-, Ad-HGF-, and phosphate-buffered saline-treated groups based on M&T staining and ELISA. The enhanced therapeutic effects of HGF-MSCs were accompanied by decreased level of the fibrogenic cytokine TGF-β1. In addition, both HGF-MSCs and MSCs can migrate to the injured mucosa and epithelial layer.
authors.affiliation: 1 Department of Otolaryngology, Eye and ENT Hospital of Fudan University , Shanghai, China .|2 Department of Otolaryngology, First Hospital of Hangzhou City , Hangzhou, Zhejiang Province, China .
authors.forename: Jing
authors.initials: J
authors.lastname: Li
authors.affiliation: 1 Department of Otolaryngology, Eye and ENT Hospital of Fudan University , Shanghai, China .
authors.forename: Chun-Quan
authors.initials: CQ
authors.lastname: Zheng
authors.affiliation: 2 Department of Otolaryngology, First Hospital of Hangzhou City , Hangzhou, Zhejiang Province, China .
authors.forename: Yong
authors.initials: Y
authors.lastname: Li
authors.affiliation: 1 Department of Otolaryngology, Eye and ENT Hospital of Fudan University , Shanghai, China .
authors.forename: Chen
authors.initials: C
authors.lastname: Yang
authors.affiliation: 1 Department of Otolaryngology, Eye and ENT Hospital of Fudan University , Shanghai, China .
authors.forename: Hai
authors.initials: H
authors.lastname: Lin
authors.affiliation: 3 Department of Otolaryngology, Second Affiliated Hospital, College of Medicine, Zhejiang University , Hangzhou, China .
authors.forename: Hong-Gang
authors.initials: HG
authors.lastname: Duan
mesh_terms: D000818:Animals; D005260:Female; D017228:Hepatocyte Growth Factor / Q000096:biosynthesis* / Q000235:genetics; D006801:Humans; D008297:Male; D059630:Mesenchymal Stem Cells / Q000378:metabolism*; D009297:Nasal Mucosa / Q000378:metabolism* / Q000473:pathology; D019899:Paracrine Communication; D010256:Paranasal Sinuses / Q000378:metabolism* / Q000473:pathology; D011817:Rabbits; D014945:Wound Healing
chemical_list: C066855:HGF protein, human; D017228:Hepatocyte Growth Factor
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