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Indispensable role of microbes in anticancer drugs and discovery trends

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Abstract

Recent years have seen an increased focus on the advancement of naturally derived products for the treatment of cancer. Since the beginning of recorded history, nature has provided a variety of medicinal agents, and an overwhelming number of drugs that we have today are derived from natural sources. Such natural agents are prominently used to treat several diseases such as diabetes, malaria, Alzheimer’s, pulmonary disorders, etc. with cancer being the highlight of this review. Due to the rapid development of resistance to chemotherapeutic drugs, the hunt for effective novel drugs is still a paramount concern in cancer treatment. Moreover, many chemotherapy drugs typically have high toxicity and adverse side effects, which necessitates the need to develop anti-tumor drugs that can be employed to treat deadly tumors with fewer negative effects on health and better efficacy. Isolation of several chemotherapeutic drugs has been conducted from a wide range of natural sources which include plants, microbes, fungi, and marine microorganisms. Considering the trends of previous decades, microbial diversity has grown to play a significant role in the formulation of pharmaceuticals and drugs, especially antibiotics and anti-cancer medications. Microbe-derived antitumor antibiotics such as anthracycline, epothilones, bleomycin, actinomycin, and staurosporine are amongst the widely used cancer chemotherapeutic agents. This review deals majorly with microbe-derived anticancer drugs taking into account their derivatives, mechanism of action, isolation procedures, limitations, and tumors targeted by them. This article also reports the phase of clinical study these drugs are undergoing. Moreover, it intends to portray the indispensable part that these microbes have been playing since time immemorial in the odyssey of chemotherapeutic agents.

Key points

Microbial diversity contributes heavily towards the formulation of anticancer drugs.

Polypeptides, carbohydrates, and alkaloids are prevalent microbe-based drug classes.

Microbe-derived anticancer agents target various sarcomas, carcinomas, and lymphomas.

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Acknowledgements

The authors would like to thank the Institute of Nano Science and Technology for their general support in completing this review article. The schematic representations of Figures 1 and 2 were created using BioRender.com. and ChemDraw was used for Figure 3.

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R.K. and A.S. share equal contribution to the manuscript for their efforts in literature collection, methodology, drafting of the article, data analysis, and critical revision of the article. D.S. conceived the paper and contributed towards the final drafting and editing of the manuscript. All authors read and approved the final version of the manuscript.

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Correspondence to Deepika Sharma.

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The authors declare no competing interests.

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Kapoor, R., Saini, A. & Sharma, D. Indispensable role of microbes in anticancer drugs and discovery trends. Appl Microbiol Biotechnol 106, 4885–4906 (2022). https://doi.org/10.1007/s00253-022-12046-2

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  • DOI: https://doi.org/10.1007/s00253-022-12046-2

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