J 2009

miR-34a, miR-29c and miR-17-5p are downregulated in CLL patients with TP53 abnormalities

MRÁZ, Marek; Karla MALINOVÁ; Jana KOTAŠKOVÁ; Šárka PAVLOVÁ; Boris TICHÝ et al.

Základní údaje

Originální název

miR-34a, miR-29c and miR-17-5p are downregulated in CLL patients with TP53 abnormalities

Vydání

Leukemia, Stockton Press, 2009, 0887-6924

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

30200 3.2 Clinical medicine

Stát vydavatele

Velká Británie a Severní Irsko

Utajení

není předmětem státního či obchodního tajemství

Impakt faktor

Impact factor: 8.296

Označené pro přenos do RIV

Ano

Kód RIV

RIV/00216224:14110/09:00067111

Organizační jednotka

Lékařská fakulta

Klíčová slova anglicky

CHRONIC LYMPHOCYTIC-LEUKEMIA; EXPRESSION; MICRORNAS

Příznaky

Mezinárodní význam, Recenzováno
Změněno: 26. 4. 2014 11:04, Ing. Mgr. Věra Pospíšilíková

Anotace

V originále

Chronic lymphocytic leukemia (CLL) is the most common leukemia in the western world and is characterized by a highly variable clinical course. CLL can be classified into two biological subtypes, according to the presence or absence of somatic mutations in the immunoglobulin heavy-chain variable region (IgVH). IgVH mutational status is of high-clinical relevance: cases with unmutated IgVH show a less favorable course with a rapid progression, whereas cases with mutated IgVH show a stable disease and longer survival. Unfavorable prognosis is also associated with the inactivation of an important tumor-suppressor p53; these patients harbor a deletion of 17p13 and this chromosomal abnormality is often accompanied by the mutation of the second TP53 allele, which leads to the complete elimination of p53 function. Moreover, a single mutation of one of the TP53 allele also occurs in a significant proportion of CLL cases. Patients with TP53 abnormalities typically do not respond to therapy and have a median survival of less than 3 years.