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Oncolytic Viral Therapy for Glioma by Recombinant Sindbis Virus

Kangyixin Sun1,2,3, Xiangwei Shi2,3,4, Li Li2

  • 1Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China.

Cancers
|October 14, 2023
PubMed
Abstract

Insights

Sindbis virus (SINV) shows promise as a safe oncolytic therapy for malignant gliomas. Combining SINV with IL-7 and IL-12 cytokines significantly enhanced glioma cell killing and prolonged survival in mice.

Area of Science:

  • Oncolytic virotherapy
  • Immunotherapy
  • Neuro-oncology

Background:

  • Glioblastoma exhibits drug resistance, short survival, and high recurrence.
  • Oncolytic therapy offers potential benefits for glioblastoma patients.

Purpose of the Study:

  • To investigate the safety and therapeutic efficacy of sindbis virus (SINV) for glioma treatment.
  • To evaluate SINV's potential when combined with cytokines like IL-12, IL-7, and GM-CSF.

Main Methods:

  • SINV was administered intravenously and intracranially in a glioma-bearing mouse model.
  • The study assessed SINV's safety, biodistribution, and therapeutic effects.
  • Combinations of SINV with IL-12, IL-7, and GM-CSF were evaluated.

Main Results:

  • SINV was safely cleared from serum and organs, with limited spread in the brain.
  • SINV induced apoptosis and stimulated the immune system, suppressing tumor growth.
  • SINV carrying IL-7 and IL-12 demonstrated the most significant glioma-killing effect, prolonging survival.

Conclusions:

  • SINV exhibits a favorable safety profile as an oncolytic virus.
  • Combining SINV with cytokines is an effective strategy for treating malignant gliomas.
Keywords:
cytokinesglioblastomakilling gliomaoncolytic virussindbis virus

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