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TGF-β Signaling in Leukemogenesis

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TGF-β in Human Disease

Abstract

Transforming growth factor-β (TGF-β) signaling plays diverse roles in regulating cell proliferation, differentiation, and “stemness” in a cell context-dependent manner. In the first section of this chapter, we outline the genetic changes that attenuate TGF-β signaling in patients with acute myelogenous leukemia (AML), or the blast crisis phase of chronic myelogenous leukemia (CML), or pediatric acute lymphoblastic leukemia (ALL). In the second section, we discuss recent advances in stem cell research indicating that TGF-β signaling does not always suppress leukemogenesis. In fact, TGF-β signaling paradoxically sustains the survival and resistance to therapy of the CML stem cells that are responsible for disease recurrence in CML patients treated with tyrosine kinase inhibitors (TKIs). We examine evidence implicating TGF-β and its downstream effectors Akt and FOXO in the in vivo maintenance of the self-renewal ability of both TKI-resistant CML stem cells and the normal hematopoietic stem cells (HSCs) from which they are derived. Increased knowledge of the complex effects of TGF-β signaling may lead to improved diagnostic and therapeutic tools that can benefit leukemia patients.

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Abbreviations

ALL:

Acute lymphoblastic leukemia

AML:

Acute myelogenous leukemia

ANLL:

Acute nonlymphoblastic leukemia

APL:

Acute promyelocytic leukemia

ATRA:

All-trans retinoic acid

BMP:

Bone morphogenetic protein

Bmpr1a:

BMP receptor type 1A

CCyR:

Complete cytogenetic response

CML:

Chronic myelogenous leukemia

cPML:

Cytoplasmic isoform of PML

FAB:

French–American–British

GFAP:

Glial fibrillary acidic protein

HSC:

Hematopoietic stem cell

KIR:

Killer immunoglobulin-like receptor

L-GMP:

Leukemic-granulocyte-macrophage progenitor

LRC:

Lipid raft clustering

LSK:

LineageSca-1+c-Kit+

MEF:

Mouse embryonic fibroblast

MPN:

Myeloproliferative neoplasm

NK:

Natural killer

PI3K:

Phosphatidylinositol-3-OH kinase

PML:

Promyelocytic leukemia

RARα:

Retinoic acid receptor α

ROS:

Reactive oxygen species

SARA:

Smad anchor for receptor activation

SCL:

Stem cell leukemia

SOD:

Superoxide dismutase

TGF-β:

Transforming growth factor-β

TKI:

Tyrosine kinase inhibitor

WHO:

World Health Organization

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Correspondence to Kazuhito Naka .

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Naka, K., Hirao, A. (2013). TGF-β Signaling in Leukemogenesis. In: Moustakas, A., Miyazawa, K. (eds) TGF-β in Human Disease. Springer, Tokyo. https://doi.org/10.1007/978-4-431-54409-8_8

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