Proteomics

Dataset Information

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7-Ketocholesterol overcomes drug resistance in Chronic Myeloid Leukemia cell lines beyond MDR1 mechanism_part2


ABSTRACT: Chronic myeloid leukemia (CML) is a myeloproliferative disease with a characteristic BCR-ABL tyrosine kinase (TK) fusion protein. Despite the clinical efficacy accomplished by TKIs therapies disease progression may affect patient response rate to these inhibitors due to a multitude of factors that could lead to development of a mechanism known as multidrug resistance (MDR). 7-ketocholesterol (7KC) has been extensively reported to cause cell death in a variety of cancer models. In this study, we showed the in vitro efficacy of 7KC against MDR leukemia cell line, Lucena. 7KC treatment induced reduction in cell viability, together with apoptosis-mediated cell death. Moreover, downregulation of MDR protein caused intracellular drug accumulation and 7KC co-incubation with either Daunorubicin or Vincristine reduced cell viability compared to the use of each drug alone. Additionally, quantitative label-free mass spectrometry-based protein quantification showed alteration of different molecular pathways involved in cell cycle arrest, induction of apoptosis and misfolded protein response. Conclusively, this study highlights the effect of 7KC as a sensitizing agent of multidrug resistance CML and elucidate its molecular mechanisms.

INSTRUMENT(S): LTQ Orbitrap Velos

ORGANISM(S): Homo Sapiens (human)

DISEASE(S): Chronic Myeloid Leukemia

SUBMITTER: Giuseppe Palmisano  

LAB HEAD: Giuseppe Palmisano

PROVIDER: PXD003819 | Pride | 2022-03-07

REPOSITORIES: Pride

Dataset's files

Source:
Action DRS
L75_1.msf Msf
L75_1.raw Raw
L75_2.msf Msf
L75_2.raw Raw
L75_3.msf Msf
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