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Table 1 Pre-clinical in vitro and in vivo studies of KPT compounds on hematological malignancies

From: XPO1 in B cell hematological malignancies: from recurrent somatic mutations to targeted therapy

Disease

XPO1 gene and protein

SINE

Effects

Reference

AML

 

KPT-185

Induces apoptosis

Promotes cell cycle arrest and inhibits proliferation

Decreases XPO1 level and restores nuclear export

Downregulates FLT3 and KIT oncogenes expression

[79]

  

KPT-276

Increases survival of FLT3-ITD+-MV4.11 mice

 

CLL

High XPO1 expression

KPT-185

Inhibits nuclear export

Induces apoptosis of tumor cells not of normal B cells

Targets the IκB pathway

Antagonizes microenvironment stimuli (TNF, IL6, IL4)

Inhibits tumor growth in vivo (Eμ-TCL1-SCID model)

[9]

T-ALL

 

KPT-185

Induce apoptosis in vitro and in vivo

[8]

  

KPT-330

Promote cell cycle arrest in G1

Inhibit tumor growth in vivo

 

AML

High XPO1 expression

KPT-185

Inhibits nuclear export

Induces a p53-dependent cell apoptosis

Inhibits cell proliferation in a p53-idependent manner

 

AML

 

KPT-330

Inhibits XPO1/cargo interactions and nuclear export

[8, 100]

  

KPT-251

Induces apoptosis

Promotes cell cycle arrest in G1

Inhibits tumor growth in vivo

Inhibits tumor growth in vivo

 

MCL

High XPO1 expression

KPT-185

Blocks nuclear export

[71]

  

KPT-276

Induces apoptosis in a p53-independent manner

Has no effect on cell cycle

Inactivates the NF-κB pathway

Inhibits tumor growth in vivo

 

MM

High XPO1 expression

KPT-276

Induces cell apoptosis in vitro and in vivo

Targets c-Myc, CDC25A, and BRD4

Induces cell cycle arrest in G1

[70]

MM

High XPO1 expression

KPT-185

Inhibit nuclear export

[73]

  

KPT-330

Induce apoposis and alleviate CAM-DR

Promote cell cycle arrest in G1

Target c-Myc, MCL1, and NF-κB pathway

Show a strong anti-myeloma activity in vivo, impair osteoclastogenesis and bone resorption

 

NHL

 

KPT-185

Inhibits cell growth

Induces apoptosis

Restores the nuclear localization of TSPs and their function

Shows anti-tumor activity in vivo

[101]

Ph + ALL

High XPO1 expression

KPT-330

Induces apoptosis both p53-dependent and -independent

Decreases clonogenic potential

Increases survival of BCR-ABL1 mice

Alters the localization of hnRNP A1 and SET

Reactivates the TSP PP2A

[102]

CLL

 

KPT-330

Suppresses effectors of BCR signaling in vitro and in vivo via BTK depletion

Prevents CLL cells migration

[103]

HL

Mutation E571K

XPO1 amplification

KPT-185

Inhibits cell line proliferation and induces apoptosis whatever XPO1 status

[16]

PMBL

Mutation E571K

XPO1 amplification

KPT-185

Inhibits cell line proliferation and induces apoptosis whatever XPO1 status

[12]

AML/CLL/DLBCL

 

KPT-8602

Inhibits XPO1/cargo interactions and nuclear export

Induces apoptosis of primary CLL cells

Inhibits proliferation of DLBCL cell lines (ABC and GC subtypes)

Prolongs the survival of Eμ-TCL1 mice

Acts in synergy with ibrutinib in vivo

Inhibits proliferation and induces apoptosis of AML cell lines and primary blasts

Is efficient in a mouse model of AML

[85]

  1. Abbreviations: ABC activated B cell like, ALL acute lymphoid leukemia, AML acute myeloid leukemia, BCR B cell receptor, BRD4 bromodomain-containing protein 4, BTK Bruton tyrosine kinase, CAM-DR cell adhesion-mediated drug resistance, CDC25A cell division cycle 25 homolog A, CLL chronic lymphoid leukemia, DLBCL diffuse large B cell lymphoma, FLT3 FMS-like tyrosine kinase, GC germinal center, IL interleukin, ITD internal tandem duplication, HL Hodgkin lymphoma, hnRNP heterogeneous nuclear ribonucleoprotein, MCL mantle cell lymphoma, MDM2 human homolog of mouse double minute 2, MM multiple myeloma, NHL non-Hodgkin lymphoma, PP2A protein phosphatase 2A, PMBL primary mediastinal B cell lymphoma, TNF tumor necrosis factor, TSP tumor suppressor protein