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Raghuram GV, Pal K, Sriram G, Khan A, Joshi R, Jadhav V, Shinde S, Shaikh A, Rane B, Kangne H, Mittra I. Therapeutic interventions on human breast cancer xenografts promote systemic dissemination of oncogenes. PLoS One 2024; 19:e0298042. [PMID: 38346047 PMCID: PMC10861051 DOI: 10.1371/journal.pone.0298042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Accepted: 01/16/2024] [Indexed: 02/15/2024] Open
Abstract
Metastatic dissemination following successful treatment of the primary tumour remains a common cause of death. There is mounting evidence that therapeutic interventions themselves may promote development of metastatic disease. We earlier reported that cell-free chromatin particles (cfChPs) released from dying cancer cells are potentially oncogenic. Based on this observation we hypothesized that therapeutic interventions may lead to the release of cfChPs from therapy induced dying cancer cells which could be carried via the blood stream to distant organs to transform healthy cells into new cancers that would masquerade as metastasis. To test this hypothesis, we generated xenografts of MDA-MB-231 human breast cancer cells in severe combined immune-deficient mice, and using immuno-fluorescence and FISH analysis looked for cfChPs in their brain cells. We detected multiple human DNA signals representing cfChPs in nuclei of brain cells of mice which co-localized with eight human onco-proteins. No intact MDA-MB-231 cells were detected. The number of co-localizing human DNA and human c-Myc signals increased dramatically following treatment with chemotherapy, localized radiotherapy or surgery, which could be prevented by concurrent treatment with three different cfChPs deactivating agents. These results suggest that therapeutic interventions lead to the release cfChPs from therapy induced dying cancer cells carrying oncogenes and are transported via the blood stream to brain cells to potentially transform them to generate new cancers that would appear as metastases. cfChPs induced metastatic spread of cancer is preventable by concurrent treatment with agents that deactivate cfChPs.
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Affiliation(s)
- Gorantla V. Raghuram
- Translational Research Laboratory, Tata Memorial Centre, Advanced Centre for Treatment, Research and Education in Cancer, Navi Mumbai, India
- Homi Bhabha National Institute, Mumbai, India
| | - Kavita Pal
- Translational Research Laboratory, Tata Memorial Centre, Advanced Centre for Treatment, Research and Education in Cancer, Navi Mumbai, India
- Homi Bhabha National Institute, Mumbai, India
| | - Gaurav Sriram
- Translational Research Laboratory, Tata Memorial Centre, Advanced Centre for Treatment, Research and Education in Cancer, Navi Mumbai, India
- Homi Bhabha National Institute, Mumbai, India
| | - Afzal Khan
- Translational Research Laboratory, Tata Memorial Centre, Advanced Centre for Treatment, Research and Education in Cancer, Navi Mumbai, India
- Homi Bhabha National Institute, Mumbai, India
| | - Ruchi Joshi
- Translational Research Laboratory, Tata Memorial Centre, Advanced Centre for Treatment, Research and Education in Cancer, Navi Mumbai, India
- Homi Bhabha National Institute, Mumbai, India
| | - Vishalkumar Jadhav
- Translational Research Laboratory, Tata Memorial Centre, Advanced Centre for Treatment, Research and Education in Cancer, Navi Mumbai, India
- Homi Bhabha National Institute, Mumbai, India
| | - Sushma Shinde
- Translational Research Laboratory, Tata Memorial Centre, Advanced Centre for Treatment, Research and Education in Cancer, Navi Mumbai, India
- Homi Bhabha National Institute, Mumbai, India
| | - Alfina Shaikh
- Translational Research Laboratory, Tata Memorial Centre, Advanced Centre for Treatment, Research and Education in Cancer, Navi Mumbai, India
- Homi Bhabha National Institute, Mumbai, India
| | - Bhagyeshri Rane
- Translational Research Laboratory, Tata Memorial Centre, Advanced Centre for Treatment, Research and Education in Cancer, Navi Mumbai, India
- Homi Bhabha National Institute, Mumbai, India
| | - Harshada Kangne
- Translational Research Laboratory, Tata Memorial Centre, Advanced Centre for Treatment, Research and Education in Cancer, Navi Mumbai, India
- Homi Bhabha National Institute, Mumbai, India
| | - Indraneel Mittra
- Translational Research Laboratory, Tata Memorial Centre, Advanced Centre for Treatment, Research and Education in Cancer, Navi Mumbai, India
- Homi Bhabha National Institute, Mumbai, India
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Italia K, Kangne H, Shanmukaiah C, Nadkarni AH, Ghosh K, Colah RB. Variable phenotypes of sickle cell disease in India with the Arab-Indian haplotype. Br J Haematol 2014; 168:156-9. [DOI: 10.1111/bjh.13083] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Khushnooma Italia
- National Institute of Immunohaematology; K.E.M. Hospital; Mumbai India
| | - Harshada Kangne
- National Institute of Immunohaematology; K.E.M. Hospital; Mumbai India
| | | | - Anita H. Nadkarni
- National Institute of Immunohaematology; K.E.M. Hospital; Mumbai India
| | - Kanjaksha Ghosh
- National Institute of Immunohaematology; K.E.M. Hospital; Mumbai India
| | - Roshan B. Colah
- National Institute of Immunohaematology; K.E.M. Hospital; Mumbai India
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