{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,6]],"date-time":"2026-10-06T08:41:55Z","timestamp":1791276115205,"version":"4.1.0"},"reference-count":29,"publisher":"SAGE Publications","issue":"4","license":[{"start":{"date-parts":[[1998,4,1]],"date-time":"1998-04-01T00:00:00Z","timestamp":891388800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J Histochem Cytochem."],"published-print":{"date-parts":[[1998,4]]},"abstract":"<jats:p>\n                    Mutations in PEX, a phosphate-regulating gene with homology to endopeptidase on the X chromosome, were recently identified in patients with X-linked hypophosphatemia (XLH), an inherited disorder of phosphate homeostasis characterized by growth retardation and rachitic and osteomalacic bone disease. To understand the mechanism by which loss of PEX function elicits the mutant phenotype, a study of its mRNA localization and ontogenesis was undertaken. Using the reverse transcriptase-nested polymerase chain reaction (RT-nested PCR) with polyA\n                    <jats:sup>+<\/jats:sup>\n                    RNA purified from mouse testis, a 337-bp Pex cDNA fragment was generated and cloned in the pCRII plasmid. The cDNA was used to generate sense and anti-sense Pex riboprobes for in situ hybridization (ISH) and Northern analysis. To survey a large number of different tissues, sagittal sections of embryos and newborn mice were examined. ISH showed the presence of Pex mRNA in osteoblasts and odontoblasts. Pex gene expression was detectable on Day 15 of embryonic development, which coincides with the beginning of intercellular matrix deposition in bones. Finally, Northern analysis of total RNA from calvariae and teeth of 3-day-old and adult mice showed that the abundance of the 7-kb Pex transcript is decreased in adult bones and in nongrowing teeth. The present study demonstrates that Pex mRNA is expressed in bones and teeth and suggests that this putative endopeptidase plays an important role in the development of these tissues.\n                  <\/jats:p>","DOI":"10.1177\/002215549804600405","type":"journal-article","created":{"date-parts":[[2011,4,1]],"date-time":"2011-04-01T03:11:07Z","timestamp":1301627467000},"page":"459-468","source":"Crossref","is-referenced-by-count":125,"title":["Pex mRNA Is Localized in Developing Mouse Osteoblasts and Odontoblasts"],"prefix":"10.1177","volume":"46","author":[{"given":"Andr\u00e9a","family":"Frota Ruchon","sequence":"first","affiliation":[{"name":"D\u00e9partement de Biochimie, Institut de Recherches Cliniques de Montr\u00e9al et D\u00e9partement de M\u00e9decine, Universit\u00e9 de Montr\u00e9al, Montr\u00e9al, Canada"},{"name":"Departamento de Morfologia, Universidade Federal do Cear\u00e1, Fortaleza, 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Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Luc","family":"DesGroseillers","sequence":"additional","affiliation":[{"name":"D\u00e9partement de Biochimie, Institut de Recherches Cliniques de Montr\u00e9al et D\u00e9partement de M\u00e9decine, Universit\u00e9 de Montr\u00e9al, Montr\u00e9al, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Philippe","family":"Crine","sequence":"additional","affiliation":[{"name":"D\u00e9partement de Biochimie, Institut de Recherches Cliniques de Montr\u00e9al et D\u00e9partement de M\u00e9decine, Universit\u00e9 de Montr\u00e9al, Montr\u00e9al, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Guy","family":"Boileau","sequence":"additional","affiliation":[{"name":"D\u00e9partement de Biochimie, Institut de Recherches Cliniques de Montr\u00e9al et D\u00e9partement de M\u00e9decine, Universit\u00e9 de Montr\u00e9al, Montr\u00e9al, 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