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Squamous stratified epithelia tissues are self-renewing, which quality implies the existence of stem cells. In skin the presence of bona fide multipotent stem cells has been demonstrated by long-term, serial grafting assays. We isolated, cultivated and exp ...
Stem cells are characterized by their dual ability to self- renew and differentiate, yielding essentially unlimited numbers of progeny that can replenish tissues with either high turnover such as blood and skin or contribute to the regeneration of organs w ...
The epithelial-mesenchymal transition (EMT) is a key developmental program that is often activated during cancer invasion and metastasis. We here report that the induction of an EMT in immortalized human mammary epithelial cells (HMLEs) results in the acqu ...
Allele-specific mismatch amplification mutation assays (MAMA) of anatomically distinct sectors of the upper bronchial tracts of nine nonsmokers revealed many numerically dispersed clusters of the point mutations C742T, G746T, G747T of the TP53 gene, G35T o ...
Continuous turnover of epithelia is ensured by the extensive self-renewal capacity of tissue-specific stem cells. Similarly, epithelial tumour maintenance relies on cancer stem cells (CSCs), which co-opt stem cell properties. For most tumours, the cellular ...
Neural stem cells (NSCs) are widely endorsed as a cell source for replacement strategies in neurodegenerative disease. However, their usefulness is currently limited by the inability to induce specific neurotransmitter phenotypes in these cells. In order t ...
Asymmetric cell division is fundamental for generating diversity in multicellular organisms. The mechanisms that govern asymmetric cell division are increasingly well understood, owing notably to studies that were conducted in Drosophila melanogaster and C ...
Epidermis is the outermost layer of the skin and is in direct contact with the external environment, requiring keratinocyte stem cells to adapt constantly. Recently, our laboratory has put forward the role of mTOR in temperature-mediated keratinocyte stem ...
Cells in our tissues are exposed to complex arrays of biochemical and biophysical cues from their protein- and sugar-rich extracellular matrix (ECM). In concert with cell- intrinsic regulatory cascades, these temporally and spatially coordinated signals in ...
The integrity of the cornea, the most anterior part of the eye, is indispensable for vision. Forty- five million individuals worldwide are bilaterally blind and another 135 million have severely impaired vision in both eyes because of loss of corneal trans ...
