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2016 ; 7
(45
): 73497-73508
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English Wikipedia
Piperlongumine induces apoptosis and reduces bortezomib resistance by inhibiting
STAT3 in multiple myeloma cells
#MMPMID27634873
Yao Y
; Sun Y
; Shi M
; Xia D
; Zhao K
; Zeng L
; Yao R
; Zhang Y
; Li Z
; Niu M
; Xu K
Oncotarget
2016[Nov]; 7
(45
): 73497-73508
PMID27634873
show ga
Effective new therapies are urgently needed for the treatment of multiple myeloma
(MM), an incurable hematological malignancy. In this study, we evaluated the
effects of piperlongumine on MM cell proliferation both in vivo and in vitro.
Piperlongumine inhibited the proliferation of MM cells by inducing cell apoptosis
and blocking osteoclastogenesis. Notably, piperlongumine also reduced bortezomib
resistance in MM cells. In a disseminated MM mouse model, piperlongumine
prolonged the survival of tumor-bearing mice without causing any obvious
toxicity. Mechanistically, piperlongumine inhibited the STAT3 signal pathway in
MM cells by binding directly to the STAT3 Cys712 residue. These findings suggest
that the clinical use of piperlongumine to overcome bortezomib resistance in MM
should be evaluated.