Comparative profiling of epigenetic modifications among individuals living in different high and low air pollution zones: A pilot study from India
Epigenetic modifications act as an important bridge to regulate the complex network of gene-environment interactions. As these mechanisms determine the gene-expression patterns via regulating the transcriptomic machinery, environmental stress induced epigenetic modifications may interrupt distinct c...
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| Format: | Article |
| Language: | English |
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Elsevier
2021-07-01
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| Series: | Environmental Advances |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666765721000235 |
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| author | Pradyumna Kumar Mishra Neha Bunkar Radha Dutt Singh Rajat Kumar Pushpendra Kumar Gupta Rajnarayan Tiwari Lalit Lodhi Arpit Bhargava Koel Chaudhury |
| author_facet | Pradyumna Kumar Mishra Neha Bunkar Radha Dutt Singh Rajat Kumar Pushpendra Kumar Gupta Rajnarayan Tiwari Lalit Lodhi Arpit Bhargava Koel Chaudhury |
| author_sort | Pradyumna Kumar Mishra |
| collection | DOAJ |
| description | Epigenetic modifications act as an important bridge to regulate the complex network of gene-environment interactions. As these mechanisms determine the gene-expression patterns via regulating the transcriptomic machinery, environmental stress induced epigenetic modifications may interrupt distinct cellular functions resulting into generation of diseased phenotypes. In the present study, we used a multi-city approach to compare the epigenomic signatures of individuals living in two tiers of Indian cities categorized as low-risk and high-risk air pollution zones. The high-risk group reported marked changes in the expression levels of epigenetic modifiers (DNMT1, DNMT3a, EZH2, EHMT2 and HAT), that maintains the levels of specific epigenetic marks essential for appropriate gene functioning. These results also coincided with the observed alterations in the levels of DNA methylation (LINE-1 and % 5mC), and histone modifications (H3 and H4), among the high-risk group. In addition, higher degree of changes reported in the expression profile of a selected miRNA panel in the high-risk group indicated the probability of deregulated transcriptional machinery. This was further confirmed by the analysis of a target gene panel involved in various signalling pathways, which revealed differential expression of the gene transcripts regulating cell cycle, inflammation, cell survival, apoptosis and cell adhesion. Together, our results provide first insights of epigenetic modifications among individuals living in different high and low levels of air pollution zones of India. However, further steps to develop a point-of-care epigenomic assay for human bio-monitoring may be immensely beneficial to reduce the health burden of air pollution especially in low and-middle-income countries. |
| first_indexed | 2024-12-17T00:21:56Z |
| format | Article |
| id | doaj.art-d4b4b13b1dd04fe28e58fe65ed7e5895 |
| institution | Directory Open Access Journal |
| issn | 2666-7657 |
| language | English |
| last_indexed | 2024-12-17T00:21:56Z |
| publishDate | 2021-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Environmental Advances |
| spelling | doaj.art-d4b4b13b1dd04fe28e58fe65ed7e58952022-12-21T22:10:33ZengElsevierEnvironmental Advances2666-76572021-07-014100052Comparative profiling of epigenetic modifications among individuals living in different high and low air pollution zones: A pilot study from IndiaPradyumna Kumar Mishra0Neha Bunkar1Radha Dutt Singh2Rajat Kumar3Pushpendra Kumar Gupta4Rajnarayan Tiwari5Lalit Lodhi6Arpit Bhargava7Koel Chaudhury8Department of Molecular Biology, ICMR-National Institute for Research in Environmental Health, Kamla Nehru Hospital Building (Gandhi Medical College Campus), Bhopal, 462001 (MP), India; Corresponding author.Department of Molecular Biology, ICMR-National Institute for Research in Environmental Health, Kamla Nehru Hospital Building (Gandhi Medical College Campus), Bhopal, 462001 (MP), IndiaDepartment of Molecular Biology, ICMR-National Institute for Research in Environmental Health, Kamla Nehru Hospital Building (Gandhi Medical College Campus), Bhopal, 462001 (MP), India; Department of Physiology and Pharmacology, Libin Cardiovascular Institute of Alberta, University of Calgary, Calgary, CanadaDepartment of Molecular Biology, ICMR-National Institute for Research in Environmental Health, Kamla Nehru Hospital Building (Gandhi Medical College Campus), Bhopal, 462001 (MP), India; Department of Biology, Hong Kong Baptist University, Ho Sin Hang Campus, Kowloon Tong, Kowloon, Hong KongDepartment of Molecular Biology, ICMR-National Institute for Research in Environmental Health, Kamla Nehru Hospital Building (Gandhi Medical College Campus), Bhopal, 462001 (MP), IndiaDepartment of Molecular Biology, ICMR-National Institute for Research in Environmental Health, Kamla Nehru Hospital Building (Gandhi Medical College Campus), Bhopal, 462001 (MP), IndiaDepartment of Molecular Biology, ICMR-National Institute for Research in Environmental Health, Kamla Nehru Hospital Building (Gandhi Medical College Campus), Bhopal, 462001 (MP), IndiaDepartment of Molecular Biology, ICMR-National Institute for Research in Environmental Health, Kamla Nehru Hospital Building (Gandhi Medical College Campus), Bhopal, 462001 (MP), IndiaSchool of Medical Science & Technology, Indian Institute of Technology, Kharagpur, IndiaEpigenetic modifications act as an important bridge to regulate the complex network of gene-environment interactions. As these mechanisms determine the gene-expression patterns via regulating the transcriptomic machinery, environmental stress induced epigenetic modifications may interrupt distinct cellular functions resulting into generation of diseased phenotypes. In the present study, we used a multi-city approach to compare the epigenomic signatures of individuals living in two tiers of Indian cities categorized as low-risk and high-risk air pollution zones. The high-risk group reported marked changes in the expression levels of epigenetic modifiers (DNMT1, DNMT3a, EZH2, EHMT2 and HAT), that maintains the levels of specific epigenetic marks essential for appropriate gene functioning. These results also coincided with the observed alterations in the levels of DNA methylation (LINE-1 and % 5mC), and histone modifications (H3 and H4), among the high-risk group. In addition, higher degree of changes reported in the expression profile of a selected miRNA panel in the high-risk group indicated the probability of deregulated transcriptional machinery. This was further confirmed by the analysis of a target gene panel involved in various signalling pathways, which revealed differential expression of the gene transcripts regulating cell cycle, inflammation, cell survival, apoptosis and cell adhesion. Together, our results provide first insights of epigenetic modifications among individuals living in different high and low levels of air pollution zones of India. However, further steps to develop a point-of-care epigenomic assay for human bio-monitoring may be immensely beneficial to reduce the health burden of air pollution especially in low and-middle-income countries.http://www.sciencedirect.com/science/article/pii/S2666765721000235Environmental HealthAir PollutionParticulate MatterCirculating Epigenomic SignaturesHuman Bio-monitoringTranslational Research |
| spellingShingle | Pradyumna Kumar Mishra Neha Bunkar Radha Dutt Singh Rajat Kumar Pushpendra Kumar Gupta Rajnarayan Tiwari Lalit Lodhi Arpit Bhargava Koel Chaudhury Comparative profiling of epigenetic modifications among individuals living in different high and low air pollution zones: A pilot study from India Environmental Advances Environmental Health Air Pollution Particulate Matter Circulating Epigenomic Signatures Human Bio-monitoring Translational Research |
| title | Comparative profiling of epigenetic modifications among individuals living in different high and low air pollution zones: A pilot study from India |
| title_full | Comparative profiling of epigenetic modifications among individuals living in different high and low air pollution zones: A pilot study from India |
| title_fullStr | Comparative profiling of epigenetic modifications among individuals living in different high and low air pollution zones: A pilot study from India |
| title_full_unstemmed | Comparative profiling of epigenetic modifications among individuals living in different high and low air pollution zones: A pilot study from India |
| title_short | Comparative profiling of epigenetic modifications among individuals living in different high and low air pollution zones: A pilot study from India |
| title_sort | comparative profiling of epigenetic modifications among individuals living in different high and low air pollution zones a pilot study from india |
| topic | Environmental Health Air Pollution Particulate Matter Circulating Epigenomic Signatures Human Bio-monitoring Translational Research |
| url | http://www.sciencedirect.com/science/article/pii/S2666765721000235 |
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