Mireille Thomas

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Fibroblasts from three patients with vitamin D-dependency rickets type II were used to study mutations in the 1,25-dihydroxyvitamin D3 receptor responsible for this hereditary disease. Normal human fibroblasts contain 43 +/- 13 fmol receptor/mg protein as determined by immunoradiometric assay and 22 +/- 3 fmol/mg by ligand binding assay. The fibroblasts(More)
Adult Ibsp-knockout mice (BSP-/-) display shorter stature, lower bone turnover and higher trabecular bone mass than wild type, the latter resulting from impaired bone resorption. Unexpectedly, BSP knockout also affects reproductive behavior, as female mice do not construct a proper "nest" for their offsprings. Multiple crossing experiments nonetheless(More)
Using an mGluR2 FRET-based binding assay, binders of the transmembrane region devoid of functional activity were identified. It is reported that slight chemical modifications of these SAMs can dramatically change activity of the resulting analogues without altering their affinities. Starting from compound 1, three mGluR2 NAMs showing also mGluR3 PAM(More)
Bovine adrenocortical cells were transplanted into scid mice, using a small cylinder inserted beneath the kidney capsule. The tissue formed from primary bovine adrenocortical cells replaced the essential functions of the animals' own adrenal glands, which were removed during the cell transplantation procedure. Most adrenalectomized animals bearing(More)
Aberrant expression of G protein-coupled receptors (GPCR) in the adrenal cortex is observed in some cases of ACTH-independent macronodular adrenal hyperplasias and adenomas associated with Cushing syndrome (CS). Although there is clinical evidence for the implication of these receptors in abnormal regulation of cortisol secretion, whether this aberrant(More)
Whereas benign adrenocortical tumors are frequent in the population, adrenocortical carcinoma (ACC) is a rare cancer. Significant advances in the understanding of the pathogenesis of sporadic ACCs have been possible through the study of hereditary syndromes responsible for ACCs. The genetic alterations involved in these syndromes have also been found in(More)
The influence of estrogens and tamoxifen on estrogen receptor (ER)-positive human breast cancer (MCF-7) cells transplanted into athymic nude mice was investigated. The mice were divided into the following three groups: (1) an E2 group with mice receiving 17 beta-estradiol dipropionate; (2) a TAM group with mice receiving tamoxifen; (3) a control group with(More)
Bone sialoprotein (BSP) belongs to the "small integrin-binding ligand N-linked glycoprotein" (SIBLING) family, whose members interact with bone cells and bone mineral. BSP is strongly expressed in bone and we previously showed that BSP knockout (BSP-/-) mice have a higher bone mass than wild type (BSP+/+) littermates, with lower bone remodelling. Because(More)
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