Expression of toll-like receptors in human epidermal keratinocytes.
- Author:
Su-Jun LIU
1
;
Cai-Ping ZHANG
;
Wu-Qing ZHOU
;
Min CHEN
;
Lin LIN
Author Information
- Publication Type:Journal Article
- MeSH: Cell Line; Cell Line, Tumor; Epidermis; cytology; Flow Cytometry; Humans; Keratinocytes; metabolism; Reverse Transcriptase Polymerase Chain Reaction; Toll-Like Receptor 2; genetics; metabolism; Toll-Like Receptor 4; genetics; metabolism; Toll-Like Receptors; genetics; metabolism
- From: Acta Academiae Medicinae Sinicae 2008;30(3):296-300
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVETo investigate the toll-like receptors (TLR) profile of human epidermal keratinocytes.
METHODSWe cultured the immortalized human epidermal keratinocyte cell line HaCaT cells and normal human epidermal keratinocytes (NHEK) and separated epidermis with dispase from foreskins. TLR 1-10 mRNA expression was detected with reverse transcription polymerase chain reaction (RT-PCR). TLR 2 and 4 protein expressions on surface of HaCaT cells and NHEK were detected using flow cytometry.
RESULTSHaCaT cells, NHEK, and epidermis all expressed TLR 1-10 mRNA with different intensity. TLR 4 protein was detected on the surfaces of HaCaT cells and NHEK, while the expression of TLR 2 protein was few.
CONCLUSIONHuman epidermal keratinocytes constitutively express all TLR 1-10 mRNA, which may enable human keratinocytes to respond to a wide range of pathogenic micro-organisms.
