Journal
FAMILIAL CANCER
Volume 10, Issue 3, Pages 415-424Publisher
SPRINGER
DOI: 10.1007/s10689-011-9457-7
Keywords
Peutz-Jeghers syndrome; Lkb1; Regulation; AMPK-related kinases; Cell polarity
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Funding
- INSERM
- La Ligue Nationale Contre le Cancer
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Initially identified as the Caenorhabditis elegans PAR-4 homologue, the serine threonine kinase LKB1 is conserved throughout evolution and ubiquitously expressed. In humans, LKB1 is causally linked to the Peutz-Jeghers syndrome and is one of the most commonly mutated genes in several cancers like lung and cervical carcinomas. These observations have led to classify LKB1 as tumour suppressor gene. Although, considerable dark zones remain, an impressive leap in the understanding of LKB1 functions has been done during the last decade. Role of LKB1 as a major actor of the AMPK/mTOR pathway connecting cellular metabolism, cell growth and tumorigenesis has been extensively studied probably to the detriment of other functions of equal importance. This review will discuss about LKB1 activity regulation, its effectors and clues on their involvement in cell polarity.
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