Magnesium Staples Release Hydrogen to Heal Wounds and Fight Cancer
- Authors
- Rui Zan, Hao Wang, Jiahua Ni, Wenhui Wang, Hongzhou Peng, Yu Sun, Shi Yang, Jie Lou, Xinbao Kang, Yongping Zhou, Yigang Chen, Jun Yan, Xiaonong Zhang
- Journal
- ACS Biomaterials Science & Engineering
- Year
- 2021
- DOI
- 10.1021/acsbiomaterials.1c00683
- Study Type
- Rabbit
- Outcome
- Positive
- Peer Reviewed
- Yes
- Country
- China
- Health Condition
- Colorectal Cancer
- Body System
- Digestive System
TL;DR
Magnesium staples used for closing wounds after bowel cancer surgery can help heal the wound and may also help prevent the cancer from coming back.
Key Finding
Magnesium surgical staples safely closed intestinal wounds in rabbits while releasing magnesium ions and hydrogen that inhibited colorectal tumor cell growth and spread in laboratory and animal studies.
Summary
Researchers tested special surgical staples made of magnesium (a mineral) to see if they could both close wounds after colorectal cancer surgery and help prevent cancer from coming back. In rabbit studies, the staples healed intestinal wounds safely without causing leakage or inflammation, and they released magnesium ions and hydrogen that slowed cancer cell growth in laboratory tests.
Practical Takeaway
This is early-stage research in animals only, not yet tested in humans. While the results are intriguing for potential future cancer surgery applications, it's too preliminary to draw conclusions about benefits for hydrogen water consumers. The hydrogen release here comes from a surgical implant, not from drinking hydrogen-enriched water.
Abstract
Biodegradable magnesium (Mg) implants spontaneously releasing therapeutic agents against tumors are an intriguing therapeutic approach for both tissue repair and tumor treatment. Anastomotic staples are extensively used for wound closure after surgical resection in patients with colorectal tumors. However, the safety of Mg anastomosis implants for intestinal closure and the effect of tumor suppression remain elusive. Here, we used a high-purity Mg staple to study these issues. Based on the results, we found that it has the potential to heal wounds produced after colorectal tumor resection while inhibiting relapse of residual tumor cells in vitro and in vivo. After implantation of Mg staples for 7 weeks in rabbits, the intestinal wound gradually healed with no adverse effects such as leakage or inflammation. Furthermore, the implanted Mg staples inhibit the growth of colorectal tumor cells and block migration to normal organs because of the increased concentration of Mg ions and released hydrogen. Such an antitumor effect is further confirmed by the in vitro cell experiments. Mg significantly induces apoptosis of tumor cells as well as inhibits cell growth and migration. Our work presents a feasible therapeutic opinion to design Mg anastomotic staples to perform wound healing and simultaneously release tumor suppressor elements in vivo to decrease the risk of tumor recurrence and metastasis.