title: Variations of chromosomes 2 and 3 gene expression profiles among pulmonary telocytes, pneumocytes, airway cells, mesenchymal stem cells and lymphocytes.
abstract: Telocytes (TCs) were identified as a distinct cellular type of the interstitial tissue and defined as cells with extremely long telopodes (Tps). Our previous data demonstrated patterns of mouse TC-specific gene profiles on chromosome 1. The present study focuses on the identification of characters and patterns of TC-specific or TC-dominated gene expression profiles in chromosome 2 and 3, the network of principle genes and potential functional association. We compared gene expression profiles of pulmonary TCs, mesenchymal stem cells, fibroblasts, alveolar type II cells, airway basal cells, proximal airway cells, CD8(+) T cells from bronchial lymph nodes (T-BL), and CD8(+) T cells from lungs (T-LL). We identified that 26 or 80 genes of TCs in chromosome 2 and 13 or 59 genes of TCs up- or down-regulated in chromosome 3, as compared with other cells respectively. Obvious overexpression of Myl9 in chromosome 2 of TCs different from other cells, indicates that biological functions of TCs are mainly associated with tissue/organ injury and ageing, while down-expression of Pltp implies that TCs may be associated with inhibition or reduction of inflammation in the lung. Dominant overexpression of Sh3glb1, Tm4sf1 or Csf1 in chromosome 3 of TCs is mainly associated with tumour promotion in lung cancer, while most down-expression of Pde5 may be involved in the development of pulmonary fibrosis and other acute and chronic interstitial lung disease.
authors.affiliation: Biomedical Research Center, Minhang Hospital & Zhongshan Hospital, Fudan University Center for Clinical Bioinformatics, Shanghai, China.
authors.forename: Minghuan
authors.initials: M
authors.lastname: Zheng
authors.forename: Xiaoru
authors.initials: X
authors.lastname: Sun
authors.forename: Miaomiao
authors.initials: M
authors.lastname: Zhang
authors.forename: Mengjia
authors.initials: M
authors.lastname: Qian
authors.forename: Yonghua
authors.initials: Y
authors.lastname: Zheng
authors.forename: Meiyi
authors.initials: M
authors.lastname: Li
authors.forename: Sanda M
authors.initials: SM
authors.lastname: Cretoiu
authors.forename: Chengshui
authors.initials: C
authors.lastname: Chen
authors.forename: Luonan
authors.initials: L
authors.lastname: Chen
authors.forename: Dragos
authors.initials: D
authors.lastname: Cretoiu
authors.forename: Laurentiu M
authors.initials: LM
authors.lastname: Popescu
authors.forename: Hao
authors.initials: H
authors.lastname: Fang
authors.forename: Xiangdong
authors.initials: X
authors.lastname: Wang
mesh_terms: D056809:Alveolar Epithelial Cells / Q000166:cytology / Q000378:metabolism*; D000818:Animals; D015415:Biomarkers / Q000378:metabolism; D002478:Cells, Cultured; D002875:Chromosomes / Q000378:metabolism*; D005347:Fibroblasts / Q000166:cytology / Q000378:metabolism*; D020869:Gene Expression Profiling; D008168:Lung / Q000166:cytology / Q000378:metabolism*; D008214:Lymphocytes / Q000166:cytology / Q000378:metabolism*; D059630:Mesenchymal Stem Cells / Q000166:cytology / Q000378:metabolism*; D051379:Mice; D020411:Oligonucleotide Array Sequence Analysis; D012137:Respiratory System / Q000166:cytology / Q000378:metabolism*
chemical_list: D015415:Biomarkers
keywords: TCs; chromosome 2; chromosome 3; fibroblasts; lung; mesenchymal stem cells