Advancements in Cancer Therapy: Mycoviruses and Their Oncolytic Potential

Kannan Kamala1,2, Dhanraj Ganapathy3, Pitchiah Sivaperumal4,5

  • 1Marine Microbial Research Lab, Department of Prosthodontics, Saveetha Dental College and Hospitals, Saveetha Institute of Medical & Technical Sciences, Saveetha University, Chennai, 600077, Tamil Nadu, India.

PubMed

Insights

Mycoviruses, specifically Myco-phages, show promise in cancer therapy by targeting and destroying oral cancer cells with minimal side effects. Genetically modified versions (GmMP) enhance this by damaging cancer cell membranes and activating immune responses.

Area of Science:

  • Oncology
  • Virology
  • Immunotherapy

Background:

  • Cancer research aims to improve treatment efficacy and reduce side effects, particularly against drug resistance and for better tumor antigen detection.
  • Microbial genetic therapies, including bacteria, fungi, and viruses, are emerging as novel treatment strategies.
  • Mycoviruses, a type of fungal virus, are gaining attention for their therapeutic potential in oncology.

Discussion:

  • Myco-phages, the smallest fungal viruses, demonstrate oncolytic activity against head, neck, and oral cancers by inducing cell lysis without apparent toxicity.
  • Genetically Modified Myco-phage (GmMP) exhibits rapid adaptation to target cancer cells, causing cell membrane damage and initiating apoptosis.
  • GmMP also activates dendritic cells, inhibits angiogenesis, and modulates immune responses through CAR cells and immune checkpoints.

Key Insights:

  • Mycovirus-based therapy offers a novel approach to cancer treatment with potential for high specificity.
  • GmMP demonstrates a multi-pronged mechanism of action, including direct oncolysis and immune system modulation.
  • The therapy shows promise in overcoming challenges like medication resistance and improving tumor antigen targeting.

Outlook:

  • Further research into GmMP could lead to transformative cancer treatment paradigms.
  • This approach may offer enhanced specificity and efficacy compared to conventional therapies.
  • Clinical trials are warranted to validate the safety and effectiveness of mycovirus-based cancer treatments.

Related Concept Videos

Cancer Therapies02:49

Cancer Therapies

Cancer therapies are various modes of treatment, such as surgery, radiation therapy, and chemotherapy that are administered to cancer patients.
However, cancer treatments can pose several challenges, as therapies used to kill cancer cells are generally also toxic to normal cells. Moreover, cancer cells mutate rapidly and can develop resistance to chemical agents or radiation therapy. Besides, all types of cancer cells may not respond to the same therapy. Some cancer cells respond to one...
7.6K
Cancer Vaccines01:30

Cancer Vaccines

Cancer treatment vaccines are a rapidly evolving field that offers a promising approach to immunotherapy. Unlike traditional vaccines that prevent diseases, cancer treatment vaccines are designed to treat existing cancers by stimulating the immune system to recognize and attack cancer cells.
Cancer vaccines come in two categories: preventive (prophylactic) and treatment (active). Preventive vaccines, such as the Human Papillomavirus (HPV) vaccine, protect against viruses that cause certain...
340
Tumor Immunotherapy01:27

Tumor Immunotherapy

Immunotherapy is a treatment that boosts or manipulates the immune system to fight diseases, including cancer. For instance, by stimulating an immune response through vaccinations against viruses that cause cancers, like hepatitis B virus and human papillomavirus, these diseases can be prevented. Nonetheless, some cancer cells can avoid the immune system due to their rapid mutation and division. The immune response to many cancers involves three phases: elimination, equilibrium, and escape.
480
Mechanisms of Retrovirus-induced Cancers01:51

Mechanisms of Retrovirus-induced Cancers

Retroviruses are RNA viruses that have been shown to cause cancers in diverse species, including chickens, mice, cats, and monkeys. The RNA genomes of these viruses are first reverse-transcribed into single and then double-stranded DNA (dsDNA) copies. This dsDNA called proviral DNA then integrates into the host genome. Subsequently, the host cell transcribes the proviral DNA in concert with the chromosomal DNA. This leads to the production of viral RNA and proteins that assemble at the host...
5.0K
Targeted Cancer Therapies02:57

Targeted Cancer Therapies

The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between the cancer cells and the normal cells. It needs a thorough understanding of the cancer cells to develop drugs that can target specific molecular aspects that drive the growth, progression, and spread of cancer cells without affecting the growth and survival of other normal cells in the body.
There are several types of targeted therapies against...
7.5K
Rous Sarcoma Virus (RSV) and Cancer01:03

Rous Sarcoma Virus (RSV) and Cancer

Rous Sarcoma virus or RSV was discovered by F. Peyton Rous in the year 1911 as a filterable transmissible agent that could cause tumors in chickens. He won a Nobel Prize for this discovery in 1966. His experiments clearly demonstrated that some cancers could be caused by infectious agents and led to the discovery of many more cancer-causing viruses in animals as well as humans.
RSV is a retrovirus that contains two copies of a plus-strand  RNA genome. Its genome consists of four main open...
5.0K