References of "Hellin, Anne-Cécile"
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See detailSystematic chromosomal aberrations found in murine bone marrow-derived mesenchymal stem cells.
Josse, Claire ULg; Schoemans, R.; Niessen, Neville-Andrew ULg et al

in Stem Cells & Development (2010), 19(8), 1167-1173

Mesenchymal stem cells (MSCs) are studied as a cellular source for the treatment of various diseases. In this work, we isolated and cultivated murine bone marrow-derived MSCs. After a first observation of ... [more ▼]

Mesenchymal stem cells (MSCs) are studied as a cellular source for the treatment of various diseases. In this work, we isolated and cultivated murine bone marrow-derived MSCs. After a first observation of a solid tumour in a mouse injected with these cells, we systematically explored their chromosomal stability. We observed in all the cytogenetically analysed cases gross chromosomal alterations every time the MSCs went through the senescence crisis while the lymphocytes from the same animals showed a normal chromosome count. This observation was confirmed in different mouse strains, with different culture protocols, and even in short-term cultures after an hematopoietic cell negative immunodepletion performed in order to accelerate the isolation procedure. Therefore, we conclude that murine MSCs display high chromosomal instability, can generate tumours, and that care must be taken before using them for the evaluation of MSC therapeutic potential. [less ▲]

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See detailDeletion of Xpter encompassing the SHOX gene and PAR1 region in familial patients with Leri-Weill Dyschondrosteosis syndrome.
Mutesa, L.; Vanbellinghen, Jean-François ULg; Hellin, Anne-Cécile ULg et al

in Genetic Counseling (Geneva, Switzerland) (2009), 20(1), 9-17

Heterozygote deletions or mutations of pseudoautosomal 1 region (PAR1) encompassing the short stature homeobox-containing (SHOX) gene cause Leri-Weill Dyschondrosteosis (LWD), which is a dominantly ... [more ▼]

Heterozygote deletions or mutations of pseudoautosomal 1 region (PAR1) encompassing the short stature homeobox-containing (SHOX) gene cause Leri-Weill Dyschondrosteosis (LWD), which is a dominantly inherited osteochondroplasia characterized by short stature with mesomelic shortening of the upper and lower limbs and Madelung deformity of the wrists. SHOX is expressed by both sex chromosomes in males and females and plays an important role in bone growth and development. Clinically, the LWD expression is variable and more severe in females than males due to sex differences in oestrogen levels. Here, we report two familial cases of LWD with a large Xp terminal deletion (approximately 943 kb) of distal PAR1 encompassing the SHOX gene. In addition, the proband had mental retardation which appeared to be from recessive inheritance in the family. [less ▲]

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