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Lipoprotein lipase is differentially expressed in prognostic subsets of chronic lymphocytic leukemia but displays invariably low catalytical activity
Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för genetik och patologi.
Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för genetik och patologi.
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2010 (engelsk)Inngår i: Leukemia research: a Forum for Studies on Leukemia and Normal Hemopoiesis, ISSN 0145-2126, E-ISSN 1873-5835, Vol. 34, nr 3, s. 301-306Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Lipoprotein lipase (LPL) expression has been shown to correlate with IGHV mutational status and to predict outcome in chronic lymphocytic leukemia (CLL). We here investigated the prognostic impact of LPL expression in relation to other prognostic markers including IGHV3-21 usage in 140 CLL patients. Additionally, we studied the catalytic activity of LPL in CLL cells. A significant difference in LPL mRNA expression was detected in IGHV unmutated compared to mutated CLL patients (p<0.001). However, the poor-prognostic mutated/stereotyped IGHV3-21 patients did not differ from other mutated CLL cases. Clinical outcome was significantly different in CLL cases with high versus low LPL expression (p<0.001), and LPL expression exceeded mutation status/IGHV3-21 usage as an independent prognostic marker. Finally, LPL protein expression correlated significantly with mRNA expression and was higher in IGHV unmutated versus mutated CLL (p=0.018), although the majority of synthesized protein was catalytically inactive indicating a non-catalytical function in CLL.

sted, utgiver, år, opplag, sider
2010. Vol. 34, nr 3, s. 301-306
Emneord [en]
LPL expression, LPL catalytical activity, IGHV mutational status, IGHV3 21 usage, Chronic lymphocytic leukemia, Prognosis
HSV kategori
Identifikatorer
URN: urn:nbn:se:uu:diva-121105DOI: 10.1016/j.leukres.2009.07.032ISI: 000274529600008PubMedID: 19709746OAI: oai:DiVA.org:uu-121105DiVA, id: diva2:304550
Tilgjengelig fra: 2010-03-18 Laget: 2010-03-18 Sist oppdatert: 2017-12-12bibliografisk kontrollert

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