HOPX: A Unique Homeodomain Protein in Development and Tumor Suppression

Homeobox genes are master regulators of morphogenesis and differentiation by acting at the top of genetic hierarchies and their deregulation is associated with a variety of human diseases. They usually contain a highly conserved sequence that codes for the homeodomain of the protein, a specialized m...

Full description

Bibliographic Details
Main Authors: Ravindran Caspa Gokulan, Lee Fah Yap, Ian C. Paterson
Format: Article
Language:English
Published: MDPI AG 2022-06-01
Series:Cancers
Subjects:
Online Access:https://www.mdpi.com/2072-6694/14/11/2764
_version_ 1797493838823030784
author Ravindran Caspa Gokulan
Lee Fah Yap
Ian C. Paterson
author_facet Ravindran Caspa Gokulan
Lee Fah Yap
Ian C. Paterson
author_sort Ravindran Caspa Gokulan
collection DOAJ
description Homeobox genes are master regulators of morphogenesis and differentiation by acting at the top of genetic hierarchies and their deregulation is associated with a variety of human diseases. They usually contain a highly conserved sequence that codes for the homeodomain of the protein, a specialized motif with three α helices and an N-terminal arm that aids in DNA binding. However, one homeodomain protein, HOPX, is unique among its family members in that it lacks the capacity to bind DNA and instead functions by interacting with transcriptional regulators. HOPX plays crucial roles in organogenesis and is expressed in both embryonic and adult stem cells. Loss of HOPX expression is common in cancer, where it functions primarily as a tumor suppressor gene. In this review, we describe the function of HOPX in development and discuss its role in carcinogenesis.
first_indexed 2024-03-10T01:25:43Z
format Article
id doaj.art-4474f75b39fb47e1a14b4e34d54a5504
institution Directory Open Access Journal
issn 2072-6694
language English
last_indexed 2024-03-10T01:25:43Z
publishDate 2022-06-01
publisher MDPI AG
record_format Article
series Cancers
spelling doaj.art-4474f75b39fb47e1a14b4e34d54a55042023-11-23T13:50:47ZengMDPI AGCancers2072-66942022-06-011411276410.3390/cancers14112764HOPX: A Unique Homeodomain Protein in Development and Tumor SuppressionRavindran Caspa Gokulan0Lee Fah Yap1Ian C. Paterson2Sylvester Comprehensive Cancer Center, Department of Surgery, University of Miami, Miami, FL 33136, USAOral Cancer Research Coordinating Centre, Department of Oral and Craniofacial Sciences, Faculty of Dentistry, University of Malaya, Kuala Lumpur 50603, MalaysiaOral Cancer Research Coordinating Centre, Department of Oral and Craniofacial Sciences, Faculty of Dentistry, University of Malaya, Kuala Lumpur 50603, MalaysiaHomeobox genes are master regulators of morphogenesis and differentiation by acting at the top of genetic hierarchies and their deregulation is associated with a variety of human diseases. They usually contain a highly conserved sequence that codes for the homeodomain of the protein, a specialized motif with three α helices and an N-terminal arm that aids in DNA binding. However, one homeodomain protein, HOPX, is unique among its family members in that it lacks the capacity to bind DNA and instead functions by interacting with transcriptional regulators. HOPX plays crucial roles in organogenesis and is expressed in both embryonic and adult stem cells. Loss of HOPX expression is common in cancer, where it functions primarily as a tumor suppressor gene. In this review, we describe the function of HOPX in development and discuss its role in carcinogenesis.https://www.mdpi.com/2072-6694/14/11/2764HOPXtumor suppressorsenescencesquamous differentiationapoptosis
spellingShingle Ravindran Caspa Gokulan
Lee Fah Yap
Ian C. Paterson
HOPX: A Unique Homeodomain Protein in Development and Tumor Suppression
Cancers
HOPX
tumor suppressor
senescence
squamous differentiation
apoptosis
title HOPX: A Unique Homeodomain Protein in Development and Tumor Suppression
title_full HOPX: A Unique Homeodomain Protein in Development and Tumor Suppression
title_fullStr HOPX: A Unique Homeodomain Protein in Development and Tumor Suppression
title_full_unstemmed HOPX: A Unique Homeodomain Protein in Development and Tumor Suppression
title_short HOPX: A Unique Homeodomain Protein in Development and Tumor Suppression
title_sort hopx a unique homeodomain protein in development and tumor suppression
topic HOPX
tumor suppressor
senescence
squamous differentiation
apoptosis
url https://www.mdpi.com/2072-6694/14/11/2764
work_keys_str_mv AT ravindrancaspagokulan hopxauniquehomeodomainproteinindevelopmentandtumorsuppression
AT leefahyap hopxauniquehomeodomainproteinindevelopmentandtumorsuppression
AT iancpaterson hopxauniquehomeodomainproteinindevelopmentandtumorsuppression