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Guo W, Guan X, Pan X, Sun X, Wang F, Ji Y, Huang P, Deng Y, Zhang Q, Han Q, Yi P, Namaka M, Liu Y, Deng Y, Li X. Post-Natal Inhibition of NF-κB Activation Prevents Renal Damage Caused by Prenatal LPS Exposure. PLoS One 2016; 11:e0153434. [PMID: 27073902 PMCID: PMC4830567 DOI: 10.1371/journal.pone.0153434] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2015] [Accepted: 03/29/2016] [Indexed: 02/05/2023] Open
Abstract
Prenatal exposure to an inflammatory stimulus has been shown to cause renal damage in offspring. Our present study explored the role of intra-renal NF-κB activation in the development of progressive renal fibrosis in offspring that underwent prenatal exposure to an inflammatory stimulus. Time-dated pregnant rats were treated with saline (control group) or 0.79 mg/kg lipopolysaccharide (LPS) through intra-peritoneal injection on gestational day 8, 10 and 12. At the age of 7 weeks, offspring from control or LPS group were treated with either tap water (Con+Ve or LPS+Ve group) or pyrollidine dithiocarbamate (PDTC, 120mg/L), a NF-κB inhibitor, via drinking water starting (Con+PDTC or LPS+PDTC group), respectively, till the age of 20 or 68 weeks. The gross structure of kidney was assessed by hematoxylin-eosin, periodic acid–Schiff staining and Sirius red staining. The expression levels of TNF-α, IL-6, α-smooth muscle actin (α-SMA) and renin-angiotensin system (RAS) genes were determined by real time polymerase chain reaction and/or immunohistochemical staining. Our data showed that post-natal persistent PDTC administration efficiently repressed intra-renal NF-κB activation, TNF-α and IL-6 expression. Post-natal PDTC also prevented intra-renal glycogen deposition and collagenous fiber generation as evident by the reduced expression of collagen III and interstitial α-SMA in offspring of prenatal LPS exposure. Furthermore, post-natal PDTC administration reversed the intra-renal renin-angiotensin system (RAS) over-activity in offspring of prenatal LPS exposure. In conclusion, prenatal inflammatory exposure results in offspring’s intra-renal NF-κB activation along with inflammation which cross-talked with excessive RAS activation that caused exacerbation of renal fibrosis and dysfunction in the offspring. Thus, early life prevention of NF-κB activation may be a potential preventive strategy for chronic renal inflammation and progressive renal damage.
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Affiliation(s)
- Wei Guo
- Institute of Materia Medica, College of Pharmacy, Third Military Medical University, Chongqing 400038, China
- Department of Pharmacy, Southwest Hospital, Third Military Medical University, Chongqing 400038, China
| | - Xiao Guan
- Institute of Materia Medica, College of Pharmacy, Third Military Medical University, Chongqing 400038, China
- Center of Translational Medicine, College of Pharmacy, Third Military Medical University, Chongqing 400038, China
| | - Xiaodong Pan
- Institute of Materia Medica, College of Pharmacy, Third Military Medical University, Chongqing 400038, China
- Center of Translational Medicine, College of Pharmacy, Third Military Medical University, Chongqing 400038, China
| | - Xiongshan Sun
- Institute of Materia Medica, College of Pharmacy, Third Military Medical University, Chongqing 400038, China
- Center of Translational Medicine, College of Pharmacy, Third Military Medical University, Chongqing 400038, China
| | - Fangjie Wang
- Institute of Materia Medica, College of Pharmacy, Third Military Medical University, Chongqing 400038, China
- Center of Translational Medicine, College of Pharmacy, Third Military Medical University, Chongqing 400038, China
| | - Yan Ji
- Institute of Materia Medica, College of Pharmacy, Third Military Medical University, Chongqing 400038, China
- Center of Translational Medicine, College of Pharmacy, Third Military Medical University, Chongqing 400038, China
| | - Pei Huang
- Institute of Materia Medica, College of Pharmacy, Third Military Medical University, Chongqing 400038, China
- Center of Translational Medicine, College of Pharmacy, Third Military Medical University, Chongqing 400038, China
| | - Yafei Deng
- Institute of Materia Medica, College of Pharmacy, Third Military Medical University, Chongqing 400038, China
- Center of Translational Medicine, College of Pharmacy, Third Military Medical University, Chongqing 400038, China
| | - Qi Zhang
- Institute of Materia Medica, College of Pharmacy, Third Military Medical University, Chongqing 400038, China
- Center of Translational Medicine, College of Pharmacy, Third Military Medical University, Chongqing 400038, China
| | - Qi Han
- Institute of Materia Medica, College of Pharmacy, Third Military Medical University, Chongqing 400038, China
- Center of Translational Medicine, College of Pharmacy, Third Military Medical University, Chongqing 400038, China
| | - Ping Yi
- Department of Obstetrics and Gynecology, Daping Hospital, Third Military Medical University, Chongqing 400038, China
| | - Michael Namaka
- Colleges of Pharmacy and Medicine, University of Manitoba, Apotex Center 750, McDermot Avenue, Winnipeg, R3E 0T5, MB, Canada
- Joint Laboratory of Biological Psychiatry between Shantou University Medical College and the College of Medicine University of Manitoba, Shantou 515063, China
| | - Ya Liu
- Institute of Materia Medica, College of Pharmacy, Third Military Medical University, Chongqing 400038, China
- Center of Translational Medicine, College of Pharmacy, Third Military Medical University, Chongqing 400038, China
- * E-mail: (YCD); (YL); (XL)
| | - Youcai Deng
- Institute of Materia Medica, College of Pharmacy, Third Military Medical University, Chongqing 400038, China
- Center of Translational Medicine, College of Pharmacy, Third Military Medical University, Chongqing 400038, China
- * E-mail: (YCD); (YL); (XL)
| | - Xiaohui Li
- Institute of Materia Medica, College of Pharmacy, Third Military Medical University, Chongqing 400038, China
- Center of Translational Medicine, College of Pharmacy, Third Military Medical University, Chongqing 400038, China
- * E-mail: (YCD); (YL); (XL)
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Zhao S, Zhang H, Cao D, Liu Y, Li X. Lipopolysaccharide exposure during pregnancy leads to aortic dysfunction in offspring rats. PLoS One 2014; 9:e102273. [PMID: 25025169 PMCID: PMC4099131 DOI: 10.1371/journal.pone.0102273] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2014] [Accepted: 06/16/2014] [Indexed: 01/06/2023] Open
Abstract
BACKGROUND Prenatal exposure to Lipopolysaccharide (LPS) produces hypertension in adult offspring rats. The present study was to explore the effects of prenatal inflammation on morphological and functional changes in the aorta from offspring rats and to further assess its susceptibility to cardiovascular diseases. METHODS AND RESULTS Pregnant rats were treated intraperitoneally on gestation Days 8, 10 and 12 with saline, LPS (0.79 mg/kg), or pyrrolidine dithiocarbamate (PDTC, 100 mg/kg)+LPS, respectively. Aortic ring reactivity and histopathological alteration were analyzed in offspring at the age of 12 weeks. The detections of connexin (Cx) 37, Cx40, Cx43, and Cx45, including immunofluorescent patterns, protein levels and mRNA expression in the aorta, were performed as well. Furthermore, the expressions of Nuclear factor (NF)-κB (p65), IκBα, phospho-IκBα and IκBβ were determined. The results showed that prenatal LPS exposure leads to morphological abnormalities and impaired aortic reactivity in offspring. Prenatal LPS exposure also decreased the protein and mRNA expression of Cx37 in the aorta from offspring rats. NF-κB and phospho-IκBα levels were both increased, IκBα level, however, was decreased in the aorta of offspring from the maternal LPS exposure compared to the controls. Simultaneously, PDTC treatment markedly reversed the action of LPS. CONCLUSIONS Decreased expression of Cx37 contributed to the aortic dysfunction of prenatal LPS exposure offspring, which should be associated with NF-κB activation.
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Affiliation(s)
- Shanyu Zhao
- Institute of Materia Medica and Department of Pharmaceutics, College of Pharmacy, Third Military Medical University, Chongqing, PR China
| | - Haigang Zhang
- Department of Pharmacology, College of Pharmacy, Third Military Medical University, Chongqing, PR China
| | - Dayan Cao
- Institute of Materia Medica and Department of Pharmaceutics, College of Pharmacy, Third Military Medical University, Chongqing, PR China
| | - Ya Liu
- Institute of Materia Medica and Department of Pharmaceutics, College of Pharmacy, Third Military Medical University, Chongqing, PR China
| | - Xiaohui Li
- Institute of Materia Medica and Department of Pharmaceutics, College of Pharmacy, Third Military Medical University, Chongqing, PR China
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