{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,11,8]],"date-time":"2026-11-08T01:50:13Z","timestamp":1794102613947,"version":"4.8.0"},"reference-count":19,"publisher":"Springer Science and Business Media LLC","issue":"1","license":[{"start":{"date-parts":[[2006,10,6]],"date-time":"2006-10-06T00:00:00Z","timestamp":1160092800000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/www.springer.com\/tdm"}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["BMC Cancer"],"published-print":{"date-parts":[[2006,12]]},"abstract":"<jats:title>Abstract<\/jats:title>\n          <jats:sec>\n            <jats:title>Background<\/jats:title>\n            <jats:p>The <jats:italic>CCND1<\/jats:italic> gene generates two mRNAs (cyclin D1a and D1b) through an alternative splicing at the site of a common A\/G polymorphism. Cyclin D1a and b proteins differ in their C-terminus, a region involved in protein degradation and sub-cellular localization. Recent data have suggested that cyclin D1b could be a nuclear oncogene. The presence of cyclin D1b mRNA and protein has been studied in two hemopathies in which cyclin D1 could be present: multiple myeloma (MM) and mantle cell lymphoma (MCL). The A\/G polymorphism of <jats:italic>CCND1<\/jats:italic> has also been verified in a series of patients.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Methods<\/jats:title>\n            <jats:p>The expression of cyclin D1 mRNA isoforms has been studied by real-time quantitative PCR; protein isoforms expression, localization and degradation by western blotting. The <jats:italic>CCND1<\/jats:italic> polymorphism was analyzed after sequencing genomic DNA.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Results<\/jats:title>\n            <jats:p>Cyclin D1 mRNA isoforms a and b were expressed in mantle cell lymphoma (MCL) and multiple myeloma (MM). Cyclin D1b proteins were present in MCL, rarely in MM. Importantly, both protein isoforms localized the nuclear and cytoplasmic compartments. They displayed the same short half-life. Thus, the two properties of cyclin D1b recognized as necessary for its transforming activity are missing in MCL. Moreover, <jats:italic>CCND1<\/jats:italic> polymorphism at the exon\/intron boundary had no influence on splicing regulation in MCL cells.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Conclusion<\/jats:title>\n            <jats:p>Our results support the notion that cyclin D1b is not crucial for the pathogenesis of MCL and MM.<\/jats:p>\n          <\/jats:sec>","DOI":"10.1186\/1471-2407-6-238","type":"journal-article","created":{"date-parts":[[2006,10,6]],"date-time":"2006-10-06T20:25:29Z","timestamp":1160166329000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":26,"title":["Relevance of cyclin D1b expression and CCND1polymorphism in the pathogenesis of multiple myeloma and mantle cell lymphoma"],"prefix":"10.1186","volume":"6","author":[{"given":"Sophie","family":"Krieger","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Juliette","family":"Gauduchon","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mikel","family":"Roussel","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xavier","family":"Troussard","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Brigitte","family":"Sola","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2006,10,6]]},"reference":[{"key":"590_CR1","doi-asserted-by":"publisher","first-page":"185","DOI":"10.1016\/S1535-6108(03)00028-X","volume":"3","author":"A Rosenwald","year":"2003","unstructured":"Rosenwald A, Wright G, Wiestner A, Chan WC, Connors JM, Campo E, gascoyne RD, Grogan TM, Muller-Hermelink HK, Smeland EB, Chiorazzi M, Giltnane JM, Hurt EM, Zhao H, Averett L, Henrickson S, Yang L, Powell J, Wilson WH, Jaffe ES, Simon R, Klausner RD, Montserrat E, Bosch F, Greiner TC, Weisenburger DD, Sanger WG, Dave BJ, Lynch JC, Vose J, Armitage JO, Fisher RI, Miller TP, LeBlanc M, Ott G, Kvaloy S, Holte H, Delabie J, Staudt LM: The proliferation gene signature is a quantitative integrator of oncogenic events that predicts survival in mantle cell lymphoma. 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