RESEARCH ARTICLE


HRF-Interacting Molecules



Toshiaki Kawakami*, Tomoaki Ando, Yuko Kawakami
Division of Cell Biology, La Jolla Institute for Allergy and Immunology, 9420 Athena Circle La Jolla, California 92037-1387, USA.


© 2012 Kawakami et al;

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: https://creativecommons.org/licenses/by/4.0/legalcode. This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

* Address correspondence to this author at the Division of Cell Biology, La Jolla Institute for Allergy and Immunology, 9420 Athena Circle La Jolla, California 92037-1387, USA; Tel: (858) 752-6814; Fax: (858) 752-6986; E-mail: toshi@liai.org


Abstract

Histamine-releasing factor (HRF), also termed translationally controlled tumor protein (TCTP) and fortilin, is a highly conserved, multi-functional protein. This protein within a cell plays a critical role in the fundamental processes of cell-cycle progression, proliferation, survival, and malignant transformation. The same protein, despite the lack of signal sequence, is secreted through a nonclassical secretory pathway. The secreted protein usually termed HRF can activate IgE-primed basophils and mast cells, and works as a B cell growth factor and a chemoattractant for eosinophils. This structurally well-characterized protein interacts with many proteins to perform its intracellular and extracellular functions. This review summarizes recent studies of HRF/TCTP-interacting proteins as a major driving force to decipher its functions.

Keywords: Allergy, asthma, basophil, HRF, mast cell, proliferation, survival, TCTP.