Title : Depletion of major vault protein increases doxorubicin sensitivity and nuclear accumulation and disrupts its sequestration in lysosomes.

Pub. Date : 2007 Jun

PMID : 17575109






3 Functional Relationships(s)
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1 Here, we show that MVP knockdown in human bladder cancer cells via small interfering RNA results in sensitization toward doxorubicin in two distinct exposure protocols. Doxorubicin major vault protein Homo sapiens
2 MVP knockdown leads to increased sensitivity toward doxorubicin and an enhanced nuclear accumulation of the drug as well as a loss of its perinuclear sequestration. Doxorubicin major vault protein Homo sapiens
3 Not only doxorubicin subcellular distribution was perturbed by MVP knockdown but lysosomal markers, such as pH-sensitive LysoSensor, pinocytosed dextran conjugates after 24-h chase period, and the lysosomal specific antigen Lamp-1, also showed a markedly different staining compared with controls. Doxorubicin major vault protein Homo sapiens