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Rai N, Gupta P, Verma A, Tiwari RK, Madhukar P, Kamble SC, Kumar A, Kumar R, Singh SK, Gautam V. Ethyl Acetate Extract of Colletotrichum gloeosporioides Promotes Cytotoxicity and Apoptosis in Human Breast Cancer Cells. ACS OMEGA 2023; 8:3768-3784. [PMID: 36743019 PMCID: PMC9893742 DOI: 10.1021/acsomega.2c05746] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Accepted: 01/11/2023] [Indexed: 06/18/2023]
Abstract
Fungal endophytes are known to be a paragon for producing bioactive compounds with a variety of pharmacological importance. The current study aims to elucidate the molecular alterations induced by the bioactive compounds produced by the fungal endophyte Colletotrichum gloeosporioides in the tumor microenvironment of human breast cancer cells. GC/MS analysis of the ethyl acetate (EA) extract of C. gloeosporioides revealed the presence of bioactive compounds with anticancer activity. The EA extract of C. gloeosporioides exerted potential plasmid DNA protective activity against hydroxyl radicals of Fenton's reagent. The cytotoxic activity further revealed that MDA-MB-231 cells exhibit more sensitivity toward the EA extract of C. gloeosporioides as compared to MCF-7 cells, whereas non-toxic to non-cancerous HEK293T cells. Furthermore, the anticancer activity demonstrated by the EA extract of C. gloeosporioides was studied by assessing nuclear morphometric analysis and induction of apoptosis in MDA-MB-231 and MCF-7 cells. The EA extract of C. gloeosporioides causes the alteration in cellular and nuclear morphologies, chromatin condensation, long-term colony inhibition, and inhibition of cell migration and proliferation ability of MDA-MB-231 and MCF-7 cells. The study also revealed that the EA extract of C. gloeosporioides treated cells undergoes apoptosis by increased production of reactive oxygen species and significant deficit in mitochondrial membrane potential. Our study also showed that the EA extract of C. gloeosporioides causes upregulation of pro-apoptotic (BAX, PARP, CASPASE-8, and FADD), cell cycle arrest (P21), and tumor suppressor (P53) related genes. Additionally, the downregulation of antiapoptotic genes (BCL-2 and SURVIVIN) and increased Caspase-3 activity suggest the induction of apoptosis in the EA extract of C. gloeosporioides treated MDA-MB-231 and MCF-7 cells. Overall, our findings suggest that the bioactive compounds present in the EA extract of C. gloeosporioides promotes apoptosis by altering the genes related to the extrinsic as well as the intrinsic pathway. Further in vivo study in breast cancer models is required to validate the in vitro observations.
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Affiliation(s)
- Nilesh Rai
- Centre
of Experimental Medicine and Surgery, Institute of Medical Sciences, Banaras Hindu University, Varanasi, 221005, India
| | - Priyamvada Gupta
- Centre
of Experimental Medicine and Surgery, Institute of Medical Sciences, Banaras Hindu University, Varanasi, 221005, India
| | - Ashish Verma
- Centre
of Experimental Medicine and Surgery, Institute of Medical Sciences, Banaras Hindu University, Varanasi, 221005, India
| | - Rajan Kumar Tiwari
- Department
of Zoology, Institute of Science, Banaras
Hindu University, Varanasi, 221005, India
| | - Prasoon Madhukar
- Infectious
Disease Research Laboratory, Department of Medicine, Institute of
Medical Sciences, Banaras Hindu University, Varanasi221005, India
| | - Swapnil C. Kamble
- Department
of Technology, Savitribai Phule Pune University, Ganeshkhind, Pune, 411007, India
| | - Ajay Kumar
- Department
of Zoology, Institute of Science, Banaras
Hindu University, Varanasi, 221005, India
| | - Rajiv Kumar
- Centre
of Experimental Medicine and Surgery, Institute of Medical Sciences, Banaras Hindu University, Varanasi, 221005, India
| | - Santosh Kumar Singh
- Centre
of Experimental Medicine and Surgery, Institute of Medical Sciences, Banaras Hindu University, Varanasi, 221005, India
| | - Vibhav Gautam
- Centre
of Experimental Medicine and Surgery, Institute of Medical Sciences, Banaras Hindu University, Varanasi, 221005, India
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Bioactive Molecules: Structures, Functions, and Potential Uses for Cancer Prevention and Targeted Therapies. Biomolecules 2022; 12:biom12091221. [PMID: 36139060 PMCID: PMC9496177 DOI: 10.3390/biom12091221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Accepted: 08/31/2022] [Indexed: 11/29/2022] Open
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Genome Features and AntiSMASH Analysis of an Endophytic Strain Fusarium sp. R1. Metabolites 2022; 12:metabo12060521. [PMID: 35736454 PMCID: PMC9229708 DOI: 10.3390/metabo12060521] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2022] [Revised: 05/30/2022] [Accepted: 06/01/2022] [Indexed: 02/05/2023] Open
Abstract
Endophytic fungi are one of the most prolific sources of functional biomolecules with therapeutic potential. Besides playing an important role in serious plant diseases, Fusarium strains possess the powerful capability to produce a diverse array of bioactive secondary metabolites (SMs). In order to in-depth mine gene clusters for SM biosynthesis of the genus Fusarium, an endophytic strain Fusarium sp. R1 isolated from Rumex madaio Makino was extensively investigated by whole-genome sequencing and in-depth bioinformatic analysis, as well as antiSMASH annotation. The results displayed that strain R1 harbors a total of 51.8 Mb genome, which consists of 542 contigs with an N50 scaffold length of 3.21 Mb and 50.4% GC content. Meanwhile, 19,333 functional protein-coding genes, 338 tRNA and 111 rRNA were comprehensively predicted and highly annotated using various BLAST databases including non-redundant (Nr) protein sequence, nucleotide (Nt) sequence, Swiss-Prot, Gene Ontology (GO), Kyoto Encyclopedia of Genes and Genomes (KEGG) and Clusters of Orthologous Groups (COG), as well as Pathogen Host Interactions (PHI) and Carbohydrate-Active enzymes (CAZy) databases. Antibiotics and Secondary Metabolites Analysis Shell (AntiSMASH) results showed that strain R1 has 37 SM biosynthetic gene clusters (BGCs), including 17 nonribosomal peptide synthetases (NRPSs), 13 polyketide synthetases (PKSs), 3 terpene synthases (Ts), 3 hybrid NRPS + PKS and 1 hybrid indole + NRPS. These findings improve our knowledge of the molecular biology of the genus Fusarium and would promote the discovery of new bioactive SMs from strain R1 using gene mining strategies including gene knockout and heteroexpression.
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