PMID- 21036383 OWN - NLM STAT- MEDLINE DCOM- 20110124 LR - 20131121 IS - 1879-1298 (Electronic) IS - 0045-6535 (Linking) VI - 82 IP - 3 DP - 2011 Jan TI - Transcriptome analysis provides insights for understanding the adverse effects of endosulfan in Drosophila melanogaster. PG - 370-6 LID - 10.1016/j.chemosphere.2010.10.002 [doi] AB - Indiscriminate use of agrochemicals worldwide, particularly, persistent organic pollutants (POPs), is of concern. Endosulfan, a POP, is used by various developing/developed nations and is known to adversely affect the development and the hormonal profiles of humans and animals. However, little is known about the molecular players/pathways underlying the adverse effects of endosulfan. We therefore analyzed the global gene expression changes and subsequent adverse effects of endosulfan using Drosophila. We used Drosophila melanogaster keeping in view of its well annotated genome and the wealth of genetic/molecular reagents available for this model organism. We exposed third instar larvae of D. melanogaster to endosulfan (2.0 mug mL(-1)) for 24 h and using microarray, we identified differential expression of 256 genes in exposed organisms compared to controls. These genes are associated with cellular processes such as development, stress and immune response and metabolism. Microarray results were validated through quantitative PCR and biochemical assay on a subset of genes/proteins. Taking cues from microarray data, we analyzed the effect of endosulfan on development, emergence and survival of the organism. In exposed organisms, we observed deformities in hind-legs, reminiscent of those observed in higher organisms exposed to endosulfan. In addition, we observed delayed and/or reduced emergence in exposed organisms when compared to their respective controls. Together, our studies not only highlight the adverse effects of endosulfan on the organism but also provide an insight into the possible genetic perturbations underlying these effects, which might have potential implications to higher organisms. CI - Copyright (c) 2010 Elsevier Ltd. All rights reserved. FAU - Sharma, Anurag AU - Sharma A AD - Embryotoxicology Section, Indian Institute of Toxicology Research, Lucknow 226 001, India. FAU - Mishra, M AU - Mishra M FAU - Ram, K Ravi AU - Ram KR FAU - Kumar, R AU - Kumar R FAU - Abdin, M Z AU - Abdin MZ FAU - Chowdhuri, D Kar AU - Chowdhuri DK LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20101030 PL - England TA - Chemosphere JT - Chemosphere JID - 0320657 RN - 0 (Environmental Pollutants) RN - 0 (Insecticides) RN - 1398-61-4 (Chitin) RN - OKA6A6ZD4K (Endosulfan) SB - IM MH - Abnormalities, Drug-Induced MH - Animals MH - Chitin/metabolism MH - Drosophila melanogaster/*drug effects/genetics/metabolism MH - Endosulfan/*toxicity MH - Environmental Pollutants/toxicity MH - Gene Expression/*drug effects MH - Gene Expression Profiling MH - Genes, Insect MH - Insecticides/*toxicity MH - Larva/drug effects/genetics/metabolism EDAT- 2010/11/03 06:00 MHDA- 2011/01/25 06:00 CRDT- 2010/11/02 06:00 PHST- 2010/04/05 00:00 [received] PHST- 2010/09/24 00:00 [revised] PHST- 2010/10/03 00:00 [accepted] PHST- 2010/11/02 06:00 [entrez] PHST- 2010/11/03 06:00 [pubmed] PHST- 2011/01/25 06:00 [medline] AID - S0045-6535(10)01134-3 [pii] AID - 10.1016/j.chemosphere.2010.10.002 [doi] PST - ppublish SO - Chemosphere. 2011 Jan;82(3):370-6. doi: 10.1016/j.chemosphere.2010.10.002. Epub 2010 Oct 30.