title: Generation of Bioartificial Salivary Gland Using Whole-Organ Decellularized Bioscaffold.
abstract: Salivary gland hypofunction resulting in xerostomia occurs as a result of various pathological conditions such as radiotherapy for head and neck cancers, Sjögren's syndrome or salivary gland tumor resection. It can induce a large number of problems, including dental decay, periodontitis, dysgeusia, difficulty with mastication and swallowing and a reduced quality of life. Current therapies for xerostomia mostly focus on saliva substitutes, oral lubricants and medications which stimulate salivation from residual glands. However, these treatments are not sufficient to restore gland secretory function. Tissue engineering-based organ regeneration has emerged as a potential therapeutic alternative for end- organ failure. Here, we decellularized rat submandibular glands (SMG) by detergent immersion. Histological, immunofluorescent, Western blot, DNA and collagen quantitative analyses demonstrated that our protocol effectively removed cellular components and that extracellular matrix proteins and native structures were well preserved. We then reseeded the decellularized SMG as scaffolds with rat primary SMG cells in a rotary cell culture system. Histological staining and electron microscopy analyses illustrated that the decellularized SMG could support cellular adhesion. Furthermore, with immunofluorescent staining, we proved that bioartificially generated SMG showed some differentiation markers in vitro. Taken together, our findings might provide a potential scaffold for tissue-engineered regeneration of the salivary glands.
authors.forename: Zhenhua
authors.initials: Z
authors.lastname: Gao
authors.forename: Tingting
authors.initials: T
authors.lastname: Wu
authors.forename: Junji
authors.initials: J
authors.lastname: Xu
authors.forename: Guolin
authors.initials: G
authors.lastname: Liu
authors.forename: Yilin
authors.initials: Y
authors.lastname: Xie
authors.forename: Chunmei
authors.initials: C
authors.lastname: Zhang
authors.forename: Jinsong
authors.initials: J
authors.lastname: Wang
authors.forename: Songlin
authors.initials: S
authors.lastname: Wang
mesh_terms: D000818:Animals; D001187:Artificial Organs; D005109:Extracellular Matrix / Q000378:metabolism; D008297:Male; D008954:Models, Biological; D017207:Rats, Sprague-Dawley; D012038:Regeneration; D012469:Salivary Glands / Q000166:cytology* / Q000502:physiology; D059008:Time-Lapse Imaging; D023822:Tissue Engineering / Q000379:methods*; D054457:Tissue Scaffolds / Q000737:chemistry*