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Hartmannsberger, D.* ; Mack, B.* ; Eggert, C.* ; Denzel, S. ; Stepp, H.* ; Betz, C.S.* ; Gires, O.

Transketolase-like protein 1 confers resistance to serum withdrawal in vitro.

Cancer Lett. 300, 20-29 (2011)
DOI PMC
Open Access Green as soon as Postprint is submitted to ZB.
Transketolase-like protein 1 (TKTL1) is a member of the family of transketolase enzymes of which the founder member transketolase (TKT) is known to play a central role in the non-oxidative part of the pentose phosphate pathway. According to several publications TKTL1 is the only family member, whose expression is substantially de-regulated in a variety of solid tumours. Over-expression of TKTL1 correlates with poor prognosis of cancer patients and TKTL1 itself represents a potential therapeutic target owing to its possible involvement in the regulation of the proliferation and metabolism of cancer cells. We show that exogenously expressed TKTL1 provides HEK293 cells with moderate growth advantages under standard culture conditions, while protecting cells from growth factor withdrawal-induced apoptosis. Importantly, we identified TKTL1 with the JFC12T10 antibody as a 65kDa protein, which was however absent in most tumour cell lines tested. Primary head and neck squamous cell carcinomas of various localisations were characterised by a focal pattern with single cells strongly expressing TKTL1, rather than by a homogeneous expression pattern within the tumour mass.
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Publication type Article: Journal article
Document type Scientific Article
Corresponding Author
Keywords TKTL1; Pentose phosphate pathway; Carcinoma
ISSN (print) / ISBN 0304-3835
e-ISSN 0304-3835
Journal Cancer Letters
Quellenangaben Volume: 300, Issue: 1, Pages: 20-29 Article Number: , Supplement: ,
Publisher Elsevier
Publishing Place Clare, Ireland
Non-patent literature Publications
Reviewing status Peer reviewed
Institute(s) CCG Molecular Oncology (AGV-KON)