1
|
Fan Y, Song X, Gao Y, Chen Y, Ma L, Zhang W, Hou W, Guo C, Tong D. Preparation and optimization of ophiopogon polysaccharide liposome and its activity on Kupffer cells. Int J Pharm 2014; 477:421-30. [DOI: 10.1016/j.ijpharm.2014.10.053] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2014] [Revised: 10/17/2014] [Accepted: 10/26/2014] [Indexed: 01/22/2023]
|
2
|
Song G, Jia H, Xu H, Liu W, Zhu H, Li S, Shi J, Li Z, He J, Chen Z. Studying the association of microRNA-210 level with chronic hepatitis B progression. J Viral Hepat 2014; 21:272-80. [PMID: 24597695 DOI: 10.1111/jvh.12138] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2013] [Accepted: 05/23/2013] [Indexed: 01/04/2023]
Abstract
We studied the relationship between hypoxia and microRNA-210 (miR-210) levels, the miR-210 levels in patients with hepatitis B and the roles of miR-210 in liver inflammation. We used the concanavalin A (Con A) murine hepatitis model and inflammation, hypoxia and miR-210 levels were examined. In these patients, we studied serum miR-210 levels and clinical indexes related to hepatitis in 90 patients with different stages of chronic hepatitis B and 30 controls. Two functional assays of miR-210 in vitro under hypoxic condition were conducted. The animal experiments indicated that the liver and serum miR-210 levels significantly increased with liver hypoxia and inflammation. In humans, serum miR-210 levels enhanced with hepatitis severity and were related to serum alanine aminotransferase (ALT), aspartate aminotransferase (AST), total bilirubin (TB) and prothrombin activity (PTA) levels. The miR-210 functional assays showed that miR-210 elevation might be related to the decreases in HepG2.2.15 cell dehydrogenase activity and HBV replication under hypoxic conditions. Because the liver inflammation causes liver hypoxia which also results in liver and serum miR-210 level elevation, the serum miR-210 level may serve as a molecular biomarker for the severity of hepatitis and increases in liver miR-210 that we see may be a response of hepatocytes to hypoxia during hepatitis progression.
Collapse
Affiliation(s)
- G Song
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China; Department of Etiology, Zhejiang Academy of Medical Sciences, Hangzhou, Zhejiang, China
| | | | | | | | | | | | | | | | | | | |
Collapse
|
3
|
Yang Y, Wang J, Yang Q, Wu S, Yang Z, Zhu H, Zheng M, Liu W, Wu W, He J, Chen Z. Shikonin inhibits the lipopolysaccharide-induced release of HMGB1 in RAW264.7 cells via IFN and NF-κB signaling pathways. Int Immunopharmacol 2014; 19:81-7. [PMID: 24447680 DOI: 10.1016/j.intimp.2014.01.003] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2013] [Revised: 12/29/2013] [Accepted: 01/06/2014] [Indexed: 11/30/2022]
Abstract
To study the anti-inflammation effect of Shikonin (Shik) and its mechanism, murine macrophage-like RAW264.7 cells (RAW264.7 cells) were divided into control group, LPS group (0.125, 0.25 and 0.5μg/ml), LPS (0.125, 0.25 and 0.5μg/ml) plus Shik (0.5, 1 and 2μM) group, and Shik (2μM) group. After exposure for 24h, the levels of Interleukin-6 (IL-6), nitric oxide (NO) and Tumor Necrosis Factor-α (TNF-α) in supernatant were measured with ELISA, the expression of high mobility group box 1(HMGB1) in supernatant and cytoplasm was assayed using qRT-PCR, western blot and immunofluorescence assays, the expression of IFN-β in cellular and supernatant was assayed by qRT-PCR and ELISA, and the ratio of nuclear to cytoplasm for NF-κB protein expression was assayed using western blot. The results of our investigation demonstrated that Shik could reduce significantly the levels of IL-6, NO and TNF-α in RAW264.7 cells exposed to LPS (P<0.05 or P<0.01). The expression of HMGB1, IFN-β and the ratio of nuclear to cytoplasm for NF-κB protein expression in LPS plus Shik group declined significantly as compared with LPS group (P<0.05 or P<0.01). The inhibitors of IFN-β signaling molecule JAK and NF-κB could attenuate significantly the expression of HMGB1 in supernatant. It was found in the present study that Shik could have the anti-inflammatory effects in RAW264.7 cells exposed to LPS, and one of the mechanisms may be the down-regulation of HMGB expression, which was associated with the IFN-β and NF-κB signaling pathways.
Collapse
Affiliation(s)
- Ying Yang
- State Key Lab of Diagnostic and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Disease, 1st Affiliated Hospital of Medical School, Zhejiang University, Hangzhou 310003, China
| | - Jing Wang
- State Key Lab of Diagnostic and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Disease, 1st Affiliated Hospital of Medical School, Zhejiang University, Hangzhou 310003, China
| | - Qiao Yang
- Department of Infectious Diseases, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang Province 310016, China
| | - Shanshan Wu
- State Key Lab of Diagnostic and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Disease, 1st Affiliated Hospital of Medical School, Zhejiang University, Hangzhou 310003, China
| | - Zhenggang Yang
- State Key Lab of Diagnostic and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Disease, 1st Affiliated Hospital of Medical School, Zhejiang University, Hangzhou 310003, China
| | - Haihong Zhu
- State Key Lab of Diagnostic and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Disease, 1st Affiliated Hospital of Medical School, Zhejiang University, Hangzhou 310003, China
| | - Min Zheng
- State Key Lab of Diagnostic and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Disease, 1st Affiliated Hospital of Medical School, Zhejiang University, Hangzhou 310003, China
| | - Weixia Liu
- State Key Lab of Diagnostic and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Disease, 1st Affiliated Hospital of Medical School, Zhejiang University, Hangzhou 310003, China
| | - Wei Wu
- State Key Lab of Diagnostic and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Disease, 1st Affiliated Hospital of Medical School, Zhejiang University, Hangzhou 310003, China
| | - Jiliang He
- Department of Environmental Medicine, School of Public Health, Zhejiang University, Hangzhou 310058, China
| | - Zhi Chen
- State Key Lab of Diagnostic and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Disease, 1st Affiliated Hospital of Medical School, Zhejiang University, Hangzhou 310003, China.
| |
Collapse
|
4
|
Yang Q, Liu Y, Shi Y, Zheng M, He J, Chen Z. The role of intracellular high-mobility group box 1 in the early activation of Kupffer cells and the development of Con A-induced acute liver failure. Immunobiology 2013; 218:1284-92. [DOI: 10.1016/j.imbio.2013.04.011] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2012] [Accepted: 04/21/2013] [Indexed: 01/26/2023]
|