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Oncofetal Chondroitin Sulfate: A Putative Therapeutic Target in Adult and Pediatric Solid Tumors
Nastaran Khazamipour1,2, Nader Al-Nakouzi1,2, Htoo Zarni Oo1,2
1Department of Urologic Sciences, University of British Columbia, Vancouver, BC V5Z 1M9, Canada.
Abstract:
Solid tumors remain a major challenge for targeted therapeutic intervention strategies such as antibody-drug conjugates and immunotherapy. At a minimum, clear and actionable solid tumor targets have to comply with the key biological requirement of being differentially over-expressed in solid tumors and metastasis, in contrast to healthy organs. Oncofetal chondroitin sulfate is a cancer-specific secondary glycosaminoglycan modification to proteoglycans expressed in a variety of solid tumors and metastasis. Normally, this modification is found to be exclusively expressed in the placenta, where it is thought to facilitate normal placental implantation during pregnancy. Informed by this biology, oncofetal chondroitin sulfate is currently under investigation as a broad and specific target in solid tumors. Here, we discuss oncofetal chondroitin sulfate as a potential therapeutic target in childhood solid tumors in the context of current knowhow obtained over the past five years in adult cancers.
Insights
Oncofetal chondroitin sulfate, a cancer-specific modification, shows promise as a therapeutic target for solid tumors. This research explores its potential in childhood cancers based on adult cancer studies.
Area of Science:
- Oncology
- Glycobiology
- Cancer Therapeutics
Background:
- Solid tumors present significant challenges for targeted therapies like antibody-drug conjugates and immunotherapy.
- Effective solid tumor targets require differential overexpression in tumors versus healthy tissues.
Purpose of the Study:
- To evaluate oncofetal chondroitin sulfate as a potential broad and specific therapeutic target for solid tumors.
- To discuss the application of oncofetal chondroitin sulfate as a target in childhood solid tumors, leveraging recent adult cancer research.
Main Methods:
- Review of current knowledge on oncofetal chondroitin sulfate biology and expression patterns.
- Analysis of existing research on oncofetal chondroitin sulfate in adult solid tumors over the past five years.
Main Results:
- Oncofetal chondroitin sulfate is a cancer-specific modification of proteoglycans found in various solid tumors and metastases.
- This modification is normally restricted to the placenta, suggesting a specific role in cancer biology.
Conclusions:
- Oncofetal chondroitin sulfate represents a promising therapeutic target due to its cancer-specific expression.
- Further investigation into oncofetal chondroitin sulfate is warranted for developing novel treatments for childhood solid tumors.
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