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CRM1

KPT-330 inhibition of chromosome region maintenance 1 is cytotoxic and sensitizes chronic myeloid leukemia to Imatinib

28 views | Oct 13 2019

Nie D et al. indicated that KPT-330 showed anti-leukemic activity and sensitized CML to IM in CRM1-dependent manner in vitro and in vivo. KPT-330 represents an alternative therapy for IM-refractory CML, warranting further investigation of CRM1 as therapeutic target. [Read the Full Post]

Selinexor-induced thrombocytopenia results from inhibition of thrombopoietin signaling in early megakaryopoiesis

37 views | Oct 10 2019

Machlus KR et al. revealed (1) the mechanism of selinexor-induced thrombocytopenia, (2) an effective way to reverse the dose-limiting thrombocytopenia, and (3) a novel role for XPO1 in megakaryopoiesis. The improved selinexor dosing regimen described herein is crucial to help reduce thrombocytopenia in selinexor patients, allowing them to continue their course of chemotherapy and have the best chance of survival. [Read the Full Post]

Selinexor (KPT-330) demonstrates anti-tumor efficacy in preclinical models of triple-negative breast cancer

126 views | Mar 14 2019

Arango NP et al. showed that Selinexor demonstrated growth inhibition in all 14 TNBC cell lines tested; TNBC cell lines were more sensitive to selinexor (median IC50 44 nM, range 11 to 550 nM) than were estrogen receptor (ER)-positive breast cancer cell lines (median IC50 > 1000 nM, range 40 to >1000 nM; P = 0.017). In multiple TNBC cell lines, selinexor was synergistic with paclitaxel, carboplatin, eribulin, and doxorubicin in vitro. Selinexor as a single agent reduced tumor growth in vivo in four of five different TNBC PDX models, with a median tumor growth inhibition ratio (T/C: treatment/control) of 42% (range 31 to 73%) and demonstrated greater antitumor efficacy in combination with paclitaxel or eribulin (average T/C ratios of 27% and 12%, respectively). [Read the Full Post]

Safety and efficacy of selinexor in relapsed or refractory multiple myeloma and Waldenstrom macroglobulinemia

110 views | Mar 14 2019

Chen C et al. concluded that selinexor in combination with dexamethasone is active in heavily pretreated MM and propose a RP2D of 45 mg/m2 (80 mg) plus 20 mg dexamethasone given twice weekly. This trial was registered at clinicaltrials.gov as #NCT01607892. [Read the Full Post]

Loss of ARID1A expression leads to sensitivity to ROS-inducing agent elesclomol in gynecologic cancer cells

0 views | Feb 16 2019

Kwan SY et al. demonstrated for the first time that loss of ARID1A leads to accumulation of ROS and suggest that elesclomol may be used to target ARID1A-mutant gynecologic cancer cells. [Read the Full Post]

Inhibiting PLK1 induces autophagy of acute myeloid leukemia cells via mammalian target of rapamycin pathway dephosphorylation

0 views | Sep 17 2018

Tao YF et al. may provided new insights into the molecular mechanism of PLK1 in regulating autophagy. [Read the Full Post]

Hypoxia potentiates the cytotoxic effect of piperlongumine in pheochromocytoma models

624 views | Jul 12 2018

Bullova P et al. reported for the first time that PL mediates PHEO cell death by activating both apoptosis and necroptosis in vitro and in vivo. This effect is magnified in hypoxic conditions, making PL a promising potential candidate for use as a therapeutic option for patients with PHEO/PGL, including those with SDHB mutations. [Read the Full Post]

Loss of ARID1A expression leads to sensitivity to ROS-inducing agent elesclomol in gynecologic cancer cells

589 views | Jun 20 2018

Kwan SY et al. demonstrated for the first time that loss of ARID1A leads to accumulation of ROS and suggest that elesclomol may be used to target ARID1A-mutant gynecologic cancer cells. [Read the Full Post]

Nuclear Export of Ubiquitinated Proteins Determines the Sensitivity of Colorectal Cancer to Proteasome Inhibitor

555 views | Oct 20 2017

Wu T et al. indicated that nuclear p53 is a major mediator in the synergistic antitumor effect of bortezomib and KPT330, and provides a rationale for the use of proteasome inhibitor together with nuclear export blocker in the treatment of colorectal cancer. It is conceivable that targeting nuclear exportation may serve as a novel strategy to overcome resistance and raise chemotherapeutic efficacy, especially for the drugs that activate the p53 system. [Read the Full Post]