NDLI: Alterations in TP 53 , cyclin D 2 , c-Myc , p 21 WAF 1 / CIP 1 and p 27 KIP 1 expression associated with progression in B-CLL

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Alterations in TP 53 , cyclin D 2 , c-Myc , p 21 WAF 1 / CIP 1 and p 27 KIP 1 expression associated with progression in B-CLL

Content Provider	Semantic Scholar
Author	Halina, Antosz Artur, Paterski Barbara, Marzec-Kotarska Joanna, Sajewicz Anna, Dmoszyńska
Copyright Year	2011
Abstract	B-cell chronic lymphocytic leukaemia (B-CLL) originates from B lymphocytes that may differ in the activation level, maturation state or cellular subgroups in peripheral blood. Tumour progression in CLL B cells seems to result in gradual accumulation of the clone of resting B lymphocytes in the early phases (G0/G1) of the cell cycle. The G1 phase is impaired in B-CLL. We investigated the gene expression of five key cell cycle regulators: TP 53, c-Myc, cyclin D2, p21WAF1/CIP1 and p27KIP1, which primarily regulate the G1 phase of the cell cycle, or S-phase entry and ultimately control the proliferation and cell growth as well as their role in B-CLL progression. The study was conducted in peripheral blood CLL lymphocytes of 40 previously untreated patients. Statistical analysis of correlations of TP53, cyclin D2, c-Myc, p21WAF1/CIP1 and p27KIP1 expressions in B-CLL patients with different Rai stages demonstrated that the progression of disease was accompanied by increases in p53, cyclin D2 and c-Myc mRNA expression. The expression of p27KIP1 was nearly statistically significant whereas that of p21 WAF1/CIP1 showed no such correlation. Moreover, high expression levels of TP53 and c-Myc genes were found to be closely associated with more aggressive forms of the disease requiring earlier therapy.
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Alternate Webpage(s)	http://old.viamedica.pl/gazety/gazetax6ang/darmowy_pdf.phtml?indeks=128&indeks_art=1275
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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