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Updated: Jun 22, 2026

Human Pluripotent Stem Cell Based Developmental Toxicity Assays for Chemical Safety Screening and Systems Biology Data Generation
Published on: June 17, 2015
[Research of cellular toxic effect to Hep-2 of recombinant toxin MSH-Ang]
Weiguo Zhou1, Xin Ni, Zhigang Huang
1Key Laboratory of Otolaryngology Head and Neck Surgery, Ministry of Education, Capital Medical University Tongren Hospital, Beijing, 100730, China. zhouweiguosky@sohu.com
Objective:
To study the cytotoxicity of recombinate toxin MSH-Ang to Hep-2.
Method:
The depurated MSH-Ang were applied in cytotoxicity experiment, and the growth inhibiting action to laryngeal carcinoma cell Hep-2 were observed.
Result:
Recombination protein inhibited the growth of laryngeal carcinoma cell Hep-2, and its inhibiting action enhanced and corpuscular mortality rate increased along with the concentration increasing.
Conclusion:
Recombinant toxin MSH-Ang can not only take special effect in tumors with high MSHR, but also target to many other popular tumors.
Insights
Recombinant toxin MSH-Ang effectively inhibits Hep-2 laryngeal cancer cell growth. Its cytotoxicity increases with concentration, showing potential for targeting various tumors.
Area of Science:
- Biochemistry
- Molecular Biology
- Oncology
Context:
- Laryngeal carcinoma poses a significant health challenge.
- Targeted cancer therapies are crucial for improving patient outcomes.
- Understanding the mechanisms of novel anti-cancer agents is essential.
Purpose:
- To evaluate the cytotoxic effects of recombinant toxin MSH-Ang on Hep-2 laryngeal carcinoma cells.
- To determine the dose-dependent inhibitory action of MSH-Ang on cancer cell proliferation.
Summary:
- Purified recombinant toxin MSH-Ang was used in cytotoxicity assays.
- MSH-Ang demonstrated significant growth inhibition of Hep-2 cells.
- Increased MSH-Ang concentration led to enhanced inhibition and higher cell mortality.
Impact:
- Recombinant toxin MSH-Ang exhibits potent anti-cancer activity against laryngeal carcinoma.
- MSH-Ang shows promise as a targeted therapeutic agent for tumors expressing MSHR.
- The findings suggest MSH-Ang's potential applicability to a broader range of common tumors.

