[Polysuccinimide exhibited antitumor activity in the experiment].

Area of Science:

• Oncology
• Pharmacology

Context:

• Novel compound polysuccinimide evaluated for antitumor properties.
• Murine solid tumor models including Lewis lung carcinoma, Acatol adenocarcinoma, and Ca-755 adenocarcinoma were utilized.

Purpose:

• To establish the antitumor activity of polysuccinimide.
• To assess the efficacy of polysuccinimide against tumor growth and metastasis.
• To investigate the effect of polysuccinimide on tumor tissue pH.

Summary:

• Polysuccinimide demonstrated significant inhibition of tumor growth, ranging from 60% to 80%, in Lewis lung carcinoma, Acatol adenocarcinoma, and Ca-755 adenocarcinoma models.
• The compound also showed a 60% effectiveness in inhibiting the development of lung metastasis in the Lewis lung carcinoma model.
• Importantly, polysuccinimide did not alter the pH levels in tumor tissues of P-388 leukemia and Acatol adenocarcinoma models.

Impact:

• Polysuccinimide exhibits potent antitumor and antimetastatic effects in preclinical models.
• The compound's lack of effect on tumor pH suggests a potentially favorable mechanism of action.
• Results support further in-depth preclinical investigation of polysuccinimide as a potential cancer therapeutic.