PMID- 33088003 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20211203 IS - 0046-8991 (Print) IS - 0973-7715 (Electronic) IS - 0046-8991 (Linking) VI - 60 IP - 4 DP - 2020 Dec TI - Protective Functions of Group 3 Late Embryogenesis Abundant (G3LEA) Proteins in Enterococcus faecium During Vancomycin Treatment. PG - 526-534 LID - 10.1007/s12088-020-00899-y [doi] AB - Late embryogenesis abundant (LEA) proteins protect organisms from various environmental stresses; however, the underlying mechanism of LEA mediated therapeutic evasion is still unclear in both eukaryotes and prokaryotes. In this study, group 3 LEA protein (G3LEA) of vancomycin-resistant Enterococcus faecium under sublethal concentration of vancomycin stress was evaluated and shown to have two functions: the first is the reduction of reactive oxygen species (ROS) content, preventing apoptosis by suppressing apoptotic proteins Cas3 and MAOB, and the second is activating specific drug efflux pumps. Sublethal vancomycin model was established with using Propidium Iodide (PI) stain. Real-time PCR was conducted to evaluate the expression of G3lea. Flow cytometry and confocal microscope using Anti- G3LEA, anti- MAOB, and anti- Cas3 were performed to assess the expression of G3LEA. Under sublethal vancomycin stress, G3LEA is upregulated, suppressing the expression of apoptotic markers and increasing specific efflux markers. These results suggest that G3LEA protein suppresses antibiotic mediated apoptosis in prokaryotic cells and plays a key role in understanding and preventing antibiotic resistance. CI - (c) Association of Microbiologists of India 2020. FAU - Song, Ahran AU - Song A AD - Department of Integrated Biomedical and Life Science, College of Health Science, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, South Korea. GRID: grid.222754.4. ISNI: 0000 0001 0840 2678 FAU - Kim, Boyong AU - Kim B AD - Department of Integrated Biomedical and Life Science, College of Health Science, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, South Korea. GRID: grid.222754.4. ISNI: 0000 0001 0840 2678 AD - Life Together, 13 Gongdan-ro, Chuncheon-siGangwon, South Korea. AD - Mitosbio, 13, Gongdan-ro, Chuncheon-si, Gangwon, South Korea. FAU - Kim, Eunyoung AU - Kim E AD - Department of Integrated Biomedical and Life Science, College of Health Science, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, South Korea. GRID: grid.222754.4. ISNI: 0000 0001 0840 2678 FAU - Sung, Jae Hwi AU - Sung JH AD - Department of Integrated Biomedical and Life Science, College of Health Science, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, South Korea. GRID: grid.222754.4. ISNI: 0000 0001 0840 2678 FAU - Park, Yoonjin AU - Park Y AD - Department of Integrated Biomedical and Life Science, College of Health Science, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, South Korea. GRID: grid.222754.4. ISNI: 0000 0001 0840 2678 FAU - Park, Sohyeon AU - Park S AD - Department of Integrated Biomedical and Life Science, College of Health Science, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, South Korea. GRID: grid.222754.4. ISNI: 0000 0001 0840 2678 FAU - Park, Taegun AU - Park T AD - Department of Integrated Biomedical and Life Science, College of Health Science, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, South Korea. GRID: grid.222754.4. ISNI: 0000 0001 0840 2678 FAU - Kim, Jin Kwan AU - Kim JK AD - Department of Biomedical Laboratory Science, College of Health Science, Jungwon University, 85 Munmu-ro, Goesan-eup, Goesan-gun, Chungbuk, South Korea. GRID: grid.440940.d. ISNI: 0000 0004 0446 3336 FAU - Jeong, Yoonhwa AU - Jeong Y AD - Research Center for Industrialization of Natural Nutraceuticals, Dankook University, Cheonan, Chungnam, Korea. GRID: grid.411982.7. ISNI: 0000 0001 0705 4288 AD - Department of Food Science and Nutrition, College of Natural Science, Dankook University, Cheonan, Chungnam, Korea. GRID: grid.411982.7. ISNI: 0000 0001 0705 4288 FAU - Lee, Seung Gwan AU - Lee SG AD - Department of Integrated Biomedical and Life Science, College of Health Science, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, South Korea. GRID: grid.222754.4. ISNI: 0000 0001 0840 2678 LA - eng PT - Journal Article DEP - 20200716 PL - India TA - Indian J Microbiol JT - Indian journal of microbiology JID - 0374703 PMC - PMC7539248 OTO - NOTNLM OT - Apoptosis OT - Efflux pump OT - Enterococcus faecium OT - LEA proteins OT - ROS OT - Vancomycin COIS- Conflicts of interestThe authors declare that they have no conflict of interest. EDAT- 2020/10/23 06:00 MHDA- 2020/10/23 06:01 PMCR- 2021/12/01 CRDT- 2020/10/22 05:35 PHST- 2020/03/11 00:00 [received] PHST- 2020/07/10 00:00 [accepted] PHST- 2020/10/22 05:35 [entrez] PHST- 2020/10/23 06:00 [pubmed] PHST- 2020/10/23 06:01 [medline] PHST- 2021/12/01 00:00 [pmc-release] AID - 899 [pii] AID - 10.1007/s12088-020-00899-y [doi] PST - ppublish SO - Indian J Microbiol. 2020 Dec;60(4):526-534. doi: 10.1007/s12088-020-00899-y. Epub 2020 Jul 16.