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Kanczkowski, W.* ; Morawietz, H.* ; Ziegler, C.G.* ; Funk, R.H.* ; Schmitz, G.* ; Zacharowski, K.* ; Mohn, C.E.* ; Ehrhart-Bornstein, M.* ; Bornstein, S.R.*

Pam3CSK4 and LTA-TLRs ligands associated with microdomains induce IL8 production in human adrenocortical cancer cells.

Horm. Metab. Res. 39, 457-460 (2007)
DOI PMC
Open Access Green as soon as Postprint is submitted to ZB.
Bacterially derived ligands, Pam3CSK4 and LPS, can directly impact adrenal glands steroidogenesis through microdomain-related TLR1/2 and 4, respectively, and indirectly via immune cell-derived cytokines. The bilateral immunoadrenal relationship plays an important role in the proper functioning of both systems. CXC chemokine-dependent immune cell infiltration into adrenocortical carcinomas (ACC), which correlates with poor prognosis, is a common phenomenon. Recently, IL8 was identified in ACC and NCI-H295R cells, and was found to contribute to ACC tumour growth. The aim of this study was to clarify the role of different TLR ligands in IL8 production in NCI-H295R cells. This is the first study to demonstrate the expression of several TLRs including TLR1, 3, 6, 7 and 9 in human adrenocortical cells by using the RT-PCR approach. Only stimulation with TLR1/6 together with TLR2 ligands resulted in IL8 peptide and mRNA induction in a dose and time-dependent manner. Our data suggest that gram-positive bacteria-related TLR1/2/6 ligands might contribute to adrenal gland tumorigenesis via IL8 production.
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Publication type Article: Journal article
Document type Scientific Article
Language english
Publication Year 2007
HGF-reported in Year 0
ISSN (print) / ISBN 0018-5043
e-ISSN 1439-4286
Quellenangaben Volume: 39, Issue: 6, Pages: 457-460 Article Number: , Supplement: ,
Publisher Thieme
Reviewing status Peer reviewed
Institute(s) Institute of Pancreatic Islet Research (IPI)
PubMed ID 17578764
Erfassungsdatum 2007-12-31