What is Multiple Hereditary Exostoses (MHE) / Multiple Osteochondroma (MO)? it is a debilitating disorder
characterized by benign bone tumors, skeletal malformations and an assortment of variable non-skeletal symptoms that persist
throughout life. One of the topics that will be addressed during the next conference will be the use of the terms used to
describe MHE / MO / HME.

Multiple Hereditary Exostoses / Multiple Osteochondroma can be debilitating when the exostoses compress soft tissues, such
as surrounding muscles, nerves and blood vessels.  In addition, some MHE / MO / HME patients develop malignant

The only known treatments for MHE / MO / HME are surgical removal of the exostoses, (which often grow back at the original
site) and surgical procedures to correct bone deformities and limb length discrepancies.  Surgery, physical therapy and pain
management are currently the only options available to MHE / MO / HME patients, and their success varies from patient to
patient and many struggle with pain, fatigue and mobility problems throughout their lives.   

The objectives of this conference, are to again establish and bring together the research and clinical communities devoted to
the better understanding of MHE / MO / HME and those caring for Hereditary Multiple Exostoses patients.  In the hope that the
research and education being done today will bring a better quality of life to all who are affected by this condition. This will be
accomplished by bringing together basic researchers from various disciplines, orthopaedic physicians, medical geneticists, MHE /
MO / HME advocacy leaders and families.  

The meeting facilitates discussions and collaborations both among and between all groups, accelerating the integration of
current knowledge and identifying new areas with future research potential. The conference plan and the selected meeting site
were both designed to encourage dissemination and discussions of new ideas and the establishment of new collaborations
between laboratories.

Understanding of MHE / MO / HME is just at the point where we can begin to make major inroads toward better diagnosis,
treatment, and possible cure.  While the last few years have brought real gains in our understanding, many issues remain
unanswered.  What signaling pathway is compromised at the growth plate when heparan sulfate synthesis is reduced? Why
does complete loss of EXT1 or EXT2 function produce overt malignancy?  Are there ways to restore heparan sulfate levels to
normal values and repress the growth of the benign tumors?  Might the malignant disease be ameliorated by restoring heparan
sulfate synthesis in transformed cells?  What can this disease tell us about the fundamental mechanisms of bone growth and

Timing of this conference to the scientific and medical communities
There are no other meetings that focus on the EXT genes, MHE / MO / HME and so this meeting has a critical role as a forum
for dialogue and exchange and will help shape future research in this area.  Our goal in planning this meeting is to bring
together researchers with active interests in the functions of the EXT proteins and to highlight and integrate recent progress in
the rapidly growing area.  This special focused meeting distinguishes this conference from all other meetings in the areas of
heparan sulfate, signaling and the extracellular matrix human genetics and Orthopaedics.  Holding a substantial, focused
meeting creates new opportunities for cross-fertilization and collaboration, to ensure the highest research quality takes place,
encourages future research and determines the most appropriate goals for translational studies.  This is important for all who
are active in this research area.  This meeting will be very useful to clinicians in enhancing communication between basic
researchers and clinicians and improving patient care and quality of live for MHE / MO / HME patients.

Relevant Previous Meetings
In October 2002, the first conference on Hereditary Multiple Exostoses was organized by Dr. Jeffrey Esko and Dr. Scott
Selleck, Ms. Ziegler and was held at the Arizona Cancer Center in Tucson, Arizona.  The first MHE Conference, idea came about
from Sarah Ziegler’s initiative, conversations with many researchers concerning a desire to meet with other researchers from
many different disciplines as well as clinicians, to gather together to share ideas and information. The
second MHE Conference
was held in November of 2005 and was co-organized by Dr. Dan Wells, Dr. Jacqueline Hecht and Ms. Ziegler, more progress
was made including a number of new scientific collaborations.  
2009 the 3rd MHE conference was organized by Dr. Yu
Yanaguchi and Sarah Ziegler. 2012 the 4th MHE conference was organized by Maurizio Pacifici, PhD and Sarah Ziegler
Home page
Be notified of page updates
it's private


Written consent must be obtained to attach web pages or the files attached to this website, please email the webmaster.

Email the webmaster:
Materials on this website are protected by copyright
Copyright © 2014 The MHE Research Foundation

Disclaimer:   While many find the information useful, it is in no way a substitute for professional medical care.
The information provided here is for educational and informational purposes only. This website does not engage in the practice of medicine.
In all cases we recommend that you consult your own physician regarding any course of treatment or medicine.

This web page was updated last on 12/5/14, 12:0O pm Eastern time
The MHE Research Foundation, we comply with the HONcode standard for health trust worthy information: By the Health On the Net Foundation.      
here to verify.# HON Conduct 282463  and is the patient support link on the US Government Genetics Home Reference (http://ghr.nlm.nih.gov)
website, also linked for Patient Information on
The Diseases Database a cross-referenced index of human disease, as well as the
Intute: health & life sciences  a free online service  providing access to the very best Web resources for education and research located in the  UK
This website is regularly reviewed by members of the Scientific and Medical Advisory Board of the MHE Research Foundation.

All online submission forms use (SSL AES 256 bit encryption (High); RSA 1024 bit exchange) Protocol with
Privacy protection.
Our goal is to make this website as safe and user friendly as possible.
The MHE Research Foundation is a participating member organization of the
United States Bone and Joint Decade/Initiative,  (USBJD/I) & the  USBJD/I Rare Bone Disease Patient Network
number of users on this website page now :

The MHE Research Foundation is proud to be an affiliate of the Society For Glycobiology
The MHE Research Foundationis proud to be a partnering society with ASMB  / MSTS  / CTOS
Dr. Dror Paley's presentation
Disclaimer, some of the sides contain operative pictures, also due to
technical issues some of the x-rays located in this presentation are
dark unfortunately were unable to fix this
Dr. Kevin Jones introduction and Dr. John Dormans
Maurizio Pacifici, PhD
Welcome remarks to the 2012 MHE Research Conference
Sarah Ziegler opening remarks
Craig Eaton opening remarks
Fourth International MHE Research Conference
was held Friday Nov. 1 - Sunday, Nov. 4, 2012
Maurizio Pacifici, Ph.D.  
Director of Orthopaedic of the Translational Research Program in Pediatric Orthopaedics at The Children's Hospital of Philadelphia, Professor of Orthopaedic
Surgery, University of Pennsylvania School of Medicine, Penn Center for Musculoskeletal Disorders
Sarah Ziegler
Click this link to download the PDF abstract book from this conference
Multiple hereditary exostoses (MHE): elucidating the pathogenesis of a rare skeletal disorder through
interdisciplinary research.
Jones KB1, Pacifici M, Hilton MJ. Connect Tissue Res. 2014
To read this full text publication click here
Dev Dyn. 2013 Jul 2. doi: 10.1002/dvdy.24010
Heparan sulfate in skeletal development, growth, and pathology: The case of hereditary
multiple exostoses.
Huegel J, Sgariglia F, Enomoto-Iwamoto M, Koyama E, Dormans JP, Pacifici M.
Translational Research Program in Pediatric Orthopaedics, Division of Orthopaedic Surgery, The Children's Hospital of Philadelphia,
Philadelphia, PA
Wings of HOPE as we REACH
for the CURE to
Multiple Hereditary Exostoses Syndrome / Multiple
Osteochondroma Syndrome