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Bai Y, Gong YE, Shen F, Li H, Cheng Y, Guo J, Liu G, Ji AF. Molecular epidemiological characteristics of carbapenem-resistant Pseudomonas aeruginosa clinical isolates in southeast Shanxi, China. J Glob Antimicrob Resist 2024; 36:301-306. [PMID: 38272212 DOI: 10.1016/j.jgar.2023.12.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2023] [Revised: 12/21/2023] [Accepted: 12/27/2023] [Indexed: 01/27/2024] Open
Abstract
OBJECTIVES Infection by carbapenem-resistant Pseudomonas aeruginosa (CRPA) is a serious clinical problem worldwide. However, the molecular epidemiology of the clinical isolates varies depending on the region. This study was conducted to analyse the resistance phenotype and clarify the genetic and epidemiological properties of CRPA clinical isolates from southeast Shanxi, China. METHODS Fifty-seven isolates of CRPA were collected from a hospital in this region. These isolates were reidentified by MALDI-TOF and subjected to whole-genome sequencing by next-generation sequencing. Phylogenetic trees were constructed based on single nucleotide polymorphisms (SNPs), after which multilocus sequence typing (MLST) was performed and antimicrobial resistance genes were identified. RESULTS All the 57 CRPA isolates carried at least one kind of gene encoding carbapenemase, such as blaIMP-1, blaIMP-10, blaOXA-10, blaOXA-395, blaOXA-396, blaOXA-485, blaOXA-486, blaOXA-488, blaOXA-494, and blaOXA-50. The isolates harboured AIM-1, CMY-51, mecD, and NmcR genes and carried one kind of Pseudomonas-derived cephalosporinase (PDC) β-lactamase-encoding gene, such as blaPCD-1 to blaPCD-3, blaPCD-5, or blaPCD-7 to blaPCD-10. Two isolates were found to harbour the aminoglycoside-modifying enzyme genes aadA1 and aadA7; however, no isolates were found to harbour genes encoding 16S rRNA methylase or quinolone resistance-related genes. These CRPA isolates belonged to various sequence types (STs), two of which, namely, ST235 and ST277, were high-risk types. CONCLUSIONS Our findings indicate that CRPA isolates carrying resistance genes with unique regional characteristics are spreading in this region, with a high diversity of STs, especially in high-risk clones. These findings highlight the necessity for further measures to prevent CRPA spread in Shanxi.
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Affiliation(s)
- Yang Bai
- Heping Hospital, Changzhi Medical College, Changzhi, Shanxi, China; Department of Medical Laboratory, Changzhi Medical College, Changzhi, Shanxi, China
| | - Yan-E Gong
- Heping Hospital, Changzhi Medical College, Changzhi, Shanxi, China; Department of Medical Laboratory, Changzhi Medical College, Changzhi, Shanxi, China
| | - Fangfang Shen
- Heping Hospital, Changzhi Medical College, Changzhi, Shanxi, China; Department of Medical Laboratory, Changzhi Medical College, Changzhi, Shanxi, China
| | - Hui Li
- Heping Hospital, Changzhi Medical College, Changzhi, Shanxi, China; Department of Medical Laboratory, Changzhi Medical College, Changzhi, Shanxi, China
| | - Yan Cheng
- Heping Hospital, Changzhi Medical College, Changzhi, Shanxi, China; Department of Medical Laboratory, Changzhi Medical College, Changzhi, Shanxi, China
| | - Jinying Guo
- Heping Hospital, Changzhi Medical College, Changzhi, Shanxi, China; Department of Medical Laboratory, Changzhi Medical College, Changzhi, Shanxi, China
| | - Guangming Liu
- Heping Hospital, Changzhi Medical College, Changzhi, Shanxi, China; Department of Medical Laboratory, Changzhi Medical College, Changzhi, Shanxi, China
| | - Ai-Fang Ji
- Heping Hospital, Changzhi Medical College, Changzhi, Shanxi, China; Department of Medical Laboratory, Changzhi Medical College, Changzhi, Shanxi, China.
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Shang QX, Yang YS, Zhang HL, Cheng YP, Lu H, Yuan Y, Chen LQ, Ji AF. Vitamin D receptor induces oxidative stress to promote esophageal squamous cell carcinoma proliferation via the p53 signaling pathway. Heliyon 2024; 10:e23832. [PMID: 38234882 PMCID: PMC10792188 DOI: 10.1016/j.heliyon.2023.e23832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 12/05/2023] [Accepted: 12/13/2023] [Indexed: 01/19/2024] Open
Abstract
Background Esophageal squamous cell carcinoma (ESCC) is a common pathological esophageal cancer with poor prognosis. Vitamin D deficiency reportedly occurs in ESCC patients, and this is related to single nucleotide polymorphism of vitamin D receptor (VDR). Objective We investigated the effect of VDR on ESCC proliferation, invasion, and metastasis and its potential mechanism. Methods ESCC and normal tissues were collected from 20 ESCC patients. The ESCC tissue microarray contained 116 pairs of ESCC and normal tissues and 73 single ESCC tissues. VDR expression and its clinicopathological role were determined by real-time quantitative polymerase chain reaction, Western blot, and immunohistochemistry staining. sh-VDR and VDR overexpression were used to validate the effect of VDR on ESCC cell phenotype, and tandem mass tag-based quantitative proteomics and bioinformatics methods identified differential VDR-related proteins. The downstream pathway and regulatory effect were analyzed using ingenuity pathway analysis (IPA). Differentially expressed proteins were verified through parallel reaction monitoring and Western blot. In vivo imaging visualized subcutaneous tumor growth following tail vein injection of VDR-deficient ESCC cells. Results High VDR expression was observed in ESCC tissues and cells. Gender, T stage, and TNM stage were related to VDR expression, which was the independent prognostic factor related to ESCC. VDR downregulation repressed ESCC cell proliferation, invasion, and migration in vitro and subcutaneous tumor growth and lung metastases in vivo. The cell phenotype changes were reversed upon VDR upregulation, and differential proteins were mainly enriched in the p53 signaling pathway. TP53 cooperated with ABCG2, APOE, FTH1, GCLM, GPX1, HMOX1, JUN, PRDX5, and SOD2 and may activate apoptosis and inhibit oxidative stress, cell metastasis, and proliferation. TP53 was upregulated after VDR knockdown, and TP53 downregulation reversed VDR knockdown-induced cell phenotype changes. Conclusions VDR may inhibit p53 signaling pathway activation and induce ESCC proliferation, invasion, and metastasis by activating oxidative stress.
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Affiliation(s)
- Qi-Xin Shang
- Department of Thoracic Surgery, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Yu-Shang Yang
- Department of Thoracic Surgery, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Han-Lu Zhang
- Department of Thoracic Surgery, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Ya-Ping Cheng
- Heping Hospital Affiliated to Changzhi Medical University, No. 161 Jiefang East Street, Changzhi, 046000, China
| | - Han Lu
- Heping Hospital Affiliated to Changzhi Medical University, No. 161 Jiefang East Street, Changzhi, 046000, China
| | - Yong Yuan
- Department of Thoracic Surgery, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Long-Qi Chen
- Department of Thoracic Surgery, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Ai-Fang Ji
- Heping Hospital Affiliated to Changzhi Medical University, No. 161 Jiefang East Street, Changzhi, 046000, China
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Shang QX, Yang YS, Hu WP, Yuan Y, He Y, Zhao JY, Ji AF, Chen LQ. Clinical and prognostic significance of preoperative lymphocyte-monocyte ratio, neutrophil-lymphocyte ratio and neutrophil-monocyte ratio on esophageal squamous cell carcinoma patients. Transl Cancer Res 2020; 9:3903-3914. [PMID: 35117757 PMCID: PMC8797393 DOI: 10.21037/tcr-19-2777] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Accepted: 04/16/2020] [Indexed: 02/05/2023]
Abstract
Background The interaction between tumor cells and inflammatory cells has not been systematically investigated in esophageal squamous cell carcinoma (ESCC). The aim of the present study was to evaluate whether preoperative lymphocyte-monocyte ratio (LMR), neutrophil-lymphocyte ratio (NLR), and neutrophil-monocyte ratio (NMR) could predict the prognosis of ESCC patients undergoing esophagectomy. Methods A total of 1,883 patients with histologically diagnosed ESCC who underwent radical esophagectomy from May 2005 to May 2015 were retrospectively reviewed. Besides clinicopathological factors, “Survminer” package in R® was applied to determine the optimal cut-off point for LMR, NLR and NMR. Meanwhile, we evaluated the prognostic value of LMR, NLR, and PLR using Kaplan-Meier curves and Cox regression models. Results The median follow-up was 28.77 months (range, 1.60–247.90 months). The optimal cut-off point of LMR, NLR and NMR is 3.83, 2.06 and 7.21, respectively. Kaplan-Meier survival analysis of patients with low preoperative LMR demonstrated a significant worse prognosis for 5-year OS (P<0.001) than those with high preoperative LMR. The high NLR cohort had lower 5-year OS (P<0.001). No significant difference with 5-year OS was found in NMR (P=0.405). On multivariate analysis, preoperative LMR (P=0.018; HR =0.786, 95% CI: 0.645, 0.959) and NLR (P=0.028; HR =1.247, 95% CI: 1.024, 1.519) were the independent prognostic factors in ESCC patients. Integrating LMR and NLR, we divided the ESCC patients in four groups according to their cut-off points and we found the patients in LMR ≥3.83 and NLR <2.06 group received the best prognosis while the prognosis of patients in LMR<3.83 and NLR ≥2.06 group was the worst. The difference was statistically significant. Conclusions Preoperative LMR and NLR better predicts cancer survival in patients with ESCC undergoing esophagectomy, especially under the circumstances of LMR ≥3.83 and NLR <2.06.
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Affiliation(s)
- Qi-Xin Shang
- Department of Thoracic Surgery, West China Hospital of Sichuan University, Chengdu, China
| | - Yu-Shang Yang
- Department of Thoracic Surgery, West China Hospital of Sichuan University, Chengdu, China
| | - Wei-Peng Hu
- Department of Thoracic Surgery, West China Hospital of Sichuan University, Chengdu, China
| | - Yong Yuan
- Department of Thoracic Surgery, West China Hospital of Sichuan University, Chengdu, China
| | - Yan He
- Central Laboratory, Heping Hospital Affiliated to Changzhi Medical University, Changzhi City, China
| | - Jing-Ying Zhao
- Central Laboratory, Heping Hospital Affiliated to Changzhi Medical University, Changzhi City, China
| | - Ai-Fang Ji
- Central Laboratory, Heping Hospital Affiliated to Changzhi Medical University, Changzhi City, China
| | - Long-Qi Chen
- Department of Thoracic Surgery, West China Hospital of Sichuan University, Chengdu, China
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Shang QX, Yang YS, Yuan Y, Gu YM, Zhang HL, Ji AF, Chen LQ. Clinical and prognostic effects of adjuvant therapy on less advanced esophageal squamous cell carcinoma patients. Ann Palliat Med 2020; 9:681-699. [PMID: 32389011 DOI: 10.21037/apm.2020.04.06] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Accepted: 02/12/2020] [Indexed: 02/05/2023]
Abstract
BACKGROUND This study aimed to clarify whether adjuvant therapy is suitable for less advanced esophageal squamous cell carcinoma (ESCC) patients postoperatively. METHODS Data from 973 patients were collected. The prognosis and clinicopathological traits of these patients were calculated in both the TNM I and IIA stages. Meanwhile, 2 separate nomograms were applied in terms of the variables with a multivariate P value <0.05 in the Cox proportional hazard regression model. RESULTS There were 471 and 502 patients in the I and IIA stage respectively; among all enrolled patients, 641, 130, 73, and 129 patients were in the no-treatment, chemotherapy, radiotherapy, and chemoradiotherapy groups, respectively. Adjuvant therapy was drawn as the independent prognostic factors for stage I (P=0.026; HR =1.081, 95% CI: 1.093, 1.308) and IIA patients (P<0.001; HR =0.788, 95% CI: 0.693, 0.896). Radiotherapy consistently obtained the best prognosis for patients when compared with the other 3 groups in the I and IIA stage. Patients in I stage had the worst prognosis after receiving chemoradiotherapy, and still, the small survival benefits of chemoradiotherapy were seen in patients of IIA stage. Two separate nomograms for the I and IIA stage were constructed. The C-index was 0.665 (95% CI: 0.569, 0.761) in the I stage and 0.645 (95% CI: 0.567, 0.723) in the IIA stage. Meanwhile, the calibration curves for predicting 3-year and 5-year survival for I and IIA patients agreed well with the actual observations. CONCLUSIONS Among less advanced ESCC patients, adjuvant therapy was not only found to be an independent factor but also proved to be of importance in patient prognosis, and radiotherapy is recommended.
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Affiliation(s)
- Qi-Xin Shang
- Department of Thoracic Surgery, West China Hospital of Sichuan University, Chengdu 610041, China
| | - Yu-Shang Yang
- Department of Thoracic Surgery, West China Hospital of Sichuan University, Chengdu 610041, China
| | - Yong Yuan
- Department of Thoracic Surgery, West China Hospital of Sichuan University, Chengdu 610041, China
| | - Yi-Min Gu
- Department of Thoracic Surgery, West China Hospital of Sichuan University, Chengdu 610041, China
| | - Han-Lu Zhang
- Department of Thoracic Surgery, West China Hospital of Sichuan University, Chengdu 610041, China
| | - Ai-Fang Ji
- Central Laboratory Heping Hospital Affiliated to Changzhi Medical University, Changzhi 046000, China.
| | - Long-Qi Chen
- Department of Thoracic Surgery, West China Hospital of Sichuan University, Chengdu 610041, China.
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Shang QX, Yang YS, Hu WP, Yuan Y, Ji AF, Chen LQ. Prognostic significance and role of thoracic lymph node metastasis based on Chinese expert consensus in esophageal cancer. Ann Transl Med 2019; 7:381. [PMID: 31555695 DOI: 10.21037/atm.2019.07.63] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Background The Chinese expert consensus on thoracic lymph node (LN) dissection in radical esophagectomy (Chinese Criteria, 2017 edition) was newly promoted. This study examined the prognostic significance and role of thoracic LN metastasis based on the Chinese Criteria for esophageal cancer. Methods Data of patients with thoracic esophageal squamous cell carcinoma (ESCC) who underwent curative esophagectomy in the West China Hospital from May 2005 to May 2015 were retrospectively analyzed. Patients' prognosis and clinicopathological features were compared to determine the role of Chinese Criteria and their relationship with Union for International Cancer Control (UICC)/American Joint Committee on Cancer (AJCC) 8th TNM staging. Results Overall, 2,285 qualified patients were divided into the no (n=1,148), skip (n=156), local (n=665), and mediastinal (n=316) metastasis groups according to the Chinese Criteria. Significant prognostic differences occurred among the four groups in all the thoracic and lower mediastinal ESCC patients (both P<0.001). The Chinese Criteria grouping was an independent prognostic factor for all thoracic [P<0.001; hazard ratio (HR) =1.261, 95% confidence interval (CI): 1.103-1.441], upper (P<0.001; HR =1.391, 95% CI: 1.264-1.530), lower mediastinal thoracic ESCC patients (P<0.001; HR =1.312, 95% CI: 1.257-1.370) and all thoracic ESCC after adjuvant therapy (P<0.001; HR =1.303, 95% CI: 1.221-1.390). Significant prognostic differences among Chinese Criteria groups occurred with N1 (P=0.014) and N2 (P=0.018) stages only. Significant differences in survival among N stages were found in local (P<0.001) and mediastinal (P=0.009) metastasis groups. Conclusions Our study was the first to report the Chinese Criteria in measuring the degree of thoracic LN metastasis. Similar to N-stage, the Chinese Criteria were confirmed as an independent prognostic factor for thoracic ESCC. Further confirmation of our findings is warranted.
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Affiliation(s)
- Qi-Xin Shang
- Department of Thoracic Surgery, West China Hospital of Sichuan University, Chengdu 610041, China
| | - Yu-Shang Yang
- Department of Thoracic Surgery, West China Hospital of Sichuan University, Chengdu 610041, China
| | - Wei-Peng Hu
- Department of Thoracic Surgery, West China Hospital of Sichuan University, Chengdu 610041, China
| | - Yong Yuan
- Department of Thoracic Surgery, West China Hospital of Sichuan University, Chengdu 610041, China
| | - Ai-Fang Ji
- Central Laboratory, Heping Hospital Affiliated to Changzhi Medical University, Changzhi 046000, China
| | - Long-Qi Chen
- Department of Thoracic Surgery, West China Hospital of Sichuan University, Chengdu 610041, China
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Yang JZ, Ji AF, Wang JS, Chen ZY, Wen SW. Association between Ras association domain family 1A promoter methylation and esophageal squamous cell carcinoma: a meta-analysis. Asian Pac J Cancer Prev 2016; 15:3921-5. [PMID: 24935575 DOI: 10.7314/apjcp.2014.15.9.3921] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
RASSF1A has been reported to be a candidate tumor suppressor in esophageal squamous cell carcinoma (ESCC). However, the association between RASSF1A promoter methylation and ESCC remains unclear. Eligible studies were identified through searching PubMed, Medline, Web of Science, and the China National Knowledge Infrastucture database. Studies were pooled and odds ratios (ORs) with corresponding confidence intervals (CIs) were calculated. Funnel plots were also performed to evaluate publication bias. Twelve studies involving 859 cases and 675 controls were included in this meta-analysis. A significant association was observed between RASSF1A methylation and ESCC overall (OR = 11.7, 95% CI: 6.59-20.9, z=8.36, P<0.00001). Subgroup analysis showed that the OR for heterogeneous tissues was 5.35 (95% CI = 2.95-9.71) while for autologous tissues it was 16.0 (8.31-30.96). For patient sample size, the OR for the <50 subgroup was 9.92 (95% CI = 2.88-34.2) and for the 50 case group was 13.1 (95% CI = 6.59-25.91). The OR for a relationship between RASSF1A methylation and TNM stages was 0.27 (95% CI=0.10-0.77), whereas there were no significant differences in RASSF1A methylation in relation to gender and differentiation among ESCC cases. This meta-analysis suggests a significant association between RASSF1A methylation and ESCC.
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Affiliation(s)
- Jian-Zhou Yang
- School of Public Health, Central South University, Changzhi, China E-mail : ;
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Zhao L, Wei ZB, Yang CQ, Chen JJ, Li D, Ji AF, Ma L. Effects of PLCE1 gene silencing by RNA interference on cell cycling and apoptosis in esophageal carcinoma cells. Asian Pac J Cancer Prev 2015; 15:5437-42. [PMID: 25041015 DOI: 10.7314/apjcp.2014.15.13.5437] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
Esophageal squamous cell carcinoma (ESCC) is one of the most malignancies with a poor prognosis. The phospholipase C? gene (PLCE1) encodes a novel ras-related protein effector mediating the effects of R-Ras on the actin cytoskeleton and membrane protrusion. However, molecular mechanisms pertinent to ESCC are unclear. We therefore designed PLCE1-special small interfering RNA and transfected to esophageal squamous cell (EC) 9706 cells to investigate the effects of PLCE1 gene silencing on the cell cycle and apoptosis of ESCC and indicate its important role in the development of ESCC. Esophageal cancer tissue specimens and normal esophageal mucosa were obtained and assayed by immunohistochemical staining to confirm overexpression of PLCE1 in neoplasias. Fluorescence microscopy was used to examine transfection efficiency, while the result of PLCE1 silencing was examined by reverse transcription (RT-PCR). Flow cytometry and annexin V apoptosis assays were used to assess the cell cycle and apoptosis, respectively. Expression of cyclin D1 and caspase-3 was detected by Western-blotting. The level of PLCE1 protein in esophageal cancer tissue was significantly higher than that in normal tissue. After transfection, the expression of PLCE1 mRNA in EC 9706 was significantly reduced, compared with the control group. Furthermore, flow cytometry results suggested that the PLCE1 gene silencing arrested the cell cycle in the G0/G1 phase; apoptosis was significantly higher than in the negative control group and mock group. PLCE1 gene silencing by RNAi resulted in decreased expression of cyclin D1 and increased expression of caspase-3. Our study suggests that PLCE1 may be an oncogene and play an important role in esophageal carcinogenesis through regulating proteins which control cell cycling and apoptosis.
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Affiliation(s)
- Li Zhao
- Department of Endoscopy, Peace Hospital Attached to Changzhi Medical College, Changzhi, China E-mail :
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Song YM, Lian CH, Wu CS, Ji AF, Xiang JJ, Wang XY. Effects of bone marrow-derived mesenchymal stem cells transplanted via the portal vein or tail vein on liver injury in rats with liver cirrhosis. Exp Ther Med 2015; 9:1292-1298. [PMID: 25780424 PMCID: PMC4353761 DOI: 10.3892/etm.2015.2232] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2014] [Accepted: 11/12/2014] [Indexed: 01/18/2023] Open
Abstract
The aim of the present study was to compare the effects of bone marrow-derived mesenchymal stem cells (BMSCs) transplanted via the portal vein or tail vein on liver injury in rats with liver cirrhosis. BMSCs were isolated from rat bone marrow and labeled with green fluorescent protein (GFP). Then, the labeled BMSCs were injected into rats with liver injury via the portal vein or tail vein. Two weeks after transplantation, three rats in each group were sacrificed to test the distribution of GFP in the liver and the serum levels of alanine aminotransferase (ALT), aspartate aminotransferase (AST) and albumin. Six weeks later, the remaining rats were sacrificed, and serum ALT, AST, albumin, hyaluronic acid (HA), laminin (LN) and procollagen type III (PC-III) levels were measured. The expression of albumin in the liver was analyzed by immunohistochemistry. Two weeks after BMSC transplantation, GFP-positive cells were detected in the livers of rats with BMSCs transplanted via the portal vein and tail vein. Compared with pre-transplantation levels, the ALT levels of the groups with BMSC transplantation via the portal vein and tail vein were significantly decreased after two and six weeks of BMSC transplantation (P<0.05), whereas the AST and albumin levels were not significantly different at two weeks after BMSC transplantation in the two groups (all P>0.05). However, the AST and albumin levels were significantly reduced at six weeks after BMSC transplantation (all P<0.05). At six weeks after BMSC transplantation, the serum HA, LN and PC-III levels in rats transplanted with BMSCs via the portal vein or tail vein had decreased significantly (all P<0.05), as compared with the levels prior to BMSC transplantation. BMSCs transplanted via the portal vein and tail vein achieved similar improvements in liver function in rats with liver cirrhosis, which suggests that peripheral venous administration is a convenient and effective route for BMSC transplantation.
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Affiliation(s)
- Ying-Ming Song
- Department of General Surgery, Heping Hospital, Changzhi Medical College, Changzhi, Shanxi 046000, P.R. China
| | - Chang-Hong Lian
- Department of General Surgery, Heping Hospital, Changzhi Medical College, Changzhi, Shanxi 046000, P.R. China
| | - Cheng-Song Wu
- Department of Gastroenterology, The Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, P.R. China
| | - Ai-Fang Ji
- Department of General Surgery, Heping Hospital, Changzhi Medical College, Changzhi, Shanxi 046000, P.R. China
| | - Juan-Juan Xiang
- Cancer Research Institute, Central South University, Changsha, Hunan 410078, P.R. China
| | - Xiao-Yan Wang
- Department of Gastroenterology, The Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, P.R. China
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Wang LD, Zhou FY, Li XM, Sun LD, Song X, Jin Y, Li JM, Kong GQ, Qi H, Cui J, Zhang LQ, Yang JZ, Li JL, Li XC, Ren JL, Liu ZC, Gao WJ, Yuan L, Wei W, Zhang YR, Wang WP, Sheyhidin I, Li F, Chen BP, Ren SW, Liu B, Li D, Ku JW, Fan ZM, Zhou SL, Guo ZG, Zhao XK, Liu N, Ai YH, Shen FF, Cui WY, Song S, Guo T, Huang J, Yuan C, Huang J, Wu Y, Yue WB, Feng CW, Li HL, Wang Y, Tian JY, Lu Y, Yuan Y, Zhu WL, Liu M, Fu WJ, Yang X, Wang HJ, Han SL, Chen J, Han M, Wang HY, Zhang P, Li XM, Dong JC, Xing GL, Wang R, Guo M, Chang ZW, Liu HL, Guo L, Yuan ZQ, Liu H, Lu Q, Yang LQ, Zhu FG, Yang XF, Feng XS, Wang Z, Li Y, Gao SG, Qige Q, Bai LT, Yang WJ, Lei GY, Shen ZY, Chen LQ, Li EM, Xu LY, Wu ZY, Cao WK, Wang JP, Bao ZQ, Chen JL, Ding GC, Zhuang X, Zhou YF, Zheng HF, Zhang Z, Zuo XB, Dong ZM, Fan DM, He X, Wang J, Zhou Q, Zhang QX, Jiao XY, Lian SY, Ji AF, Lu XM, Wang JS, Chang FB, Lu CD, Chen ZG, Miao JJ, Fan ZL, Lin RB, Liu TJ, Wei JC, Kong QP, Lan Y, Fan YJ, Gao FS, Wang TY, Xie D, Chen SQ, Yang WC, Hong JY, Wang L, Qiu SL, Cai ZM, Zhang XJ. Corrigendum: Genome-wide association study of esophageal squamous cell carcinoma in Chinese subjects identifies susceptibility loci at PLCE1 and C20orf54. Nat Genet 2014. [DOI: 10.1038/ng0914-1041] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Xin F, Wei W, Ji AF, Shen XL, Zhang GX, Zhang MX, Li XX, Zhang HY. [Inducing-apoptosis effect of brucine on human monocytic leukemia cell line THP-1 and its mechanism]. Zhongguo Shi Yan Xue Ye Xue Za Zhi 2014; 22:681-6. [PMID: 24989276 DOI: 10.7534/j.issn.1009-2137.2014.03.020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
This study was aimed to investigate the inducing-apoptosis effect of brucine on human monocytic leukemia cell line THP-1 cells and its possible mechanism. The inhibition effect of brucine on growth of THP-1 cells was measured by CCK-8 method. Morphological changes of THP-1 cells treated with brucine was detected by acridine orange/ethidium bromide (AO/EB)double staining. Annexin-V/PI double labeling method was used to assay the apoptosis rate of THP-1 cells. The effect of brucine on THP-1 cell cycle distribution was detected by PI single staining. RT-PCR was used to detect the expression of BCL-2 and BAX. The results showed that the brucine could inhibit the THP-1 cell growth in concentration and time-dependent manners at the range of 50 to 400 µg/ml. The cells stained with AO/EB revealed that the brucine induced the nuclear chromatin condensation. After the THP-1 cells were treated with brucine of 400µg/ml for 48 hours, most nucleic were stained as orange-red, and condensed, displaying the late apoptotic cell morphology. Annexin-V/PI detection showed that brucine could induce apoptosis of THP-1 cells in a concentration-dependent manner. Compared with the control group, more cells in brucine-treated group were arrested at G0/G1 phase in a concentration-dependent manner. RT-PCR detection revealed that the expression of BCL-2 was down-regulated strikingly and BAX was up-regulated. It is concluded that brucine can efficiently inhibit cell growth and block THP-1 cells in G0/G1 phase. The mechanism of THP-1 cell apoptosis induced by brucine may be related to the inhibition of BCL-2 and activation of BAX.
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Affiliation(s)
- Fei Xin
- First clinicial Department, Shanxi Medical University, Taiyuan 030001, Shanxi Province, China
| | - Wu Wei
- Department of Hematology, Peace Hospital Affiliated to Changzhi Medical college, Changzhi 046000, Shanxi Province, China. E-mail:
| | - Ai-Fang Ji
- Department of Hematology, Peace Hospital Affiliated to Changzhi Medical college, Changzhi 046000, Shanxi Province, China
| | - Xu-Liang Shen
- Department of Hematology, Peace Hospital Affiliated to Changzhi Medical college, Changzhi 046000, Shanxi Province, China
| | - Guo-Xiang Zhang
- Department of Hematology, Peace Hospital Affiliated to Changzhi Medical college, Changzhi 046000, Shanxi Province, China
| | - Mei-Xiang Zhang
- Department of Hematology, Peace Hospital Affiliated to Changzhi Medical college, Changzhi 046000, Shanxi Province, China
| | - Xian-Xian Li
- First clinicial Department, Shanxi Medical University, Taiyuan 030001, Shanxi Province, China
| | - Hai-Yan Zhang
- First clinicial Department, Shanxi Medical University, Taiyuan 030001, Shanxi Province, China
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Wang JS, Ji AF, Wan HJ, Lu YL, Yang JZ, Ma LL, Wang YJ, Wei W. Gene silencing of β-catenin by RNAi inhibits proliferation of human esophageal cancer cells by inducing G0/G1 cell cycle arrest. Asian Pac J Cancer Prev 2013; 13:2527-32. [PMID: 22938416 DOI: 10.7314/apjcp.2012.13.6.2527] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
OBJECTIVES The aim of the present study was to explore mechanisms underlying the effects of down-regulating β-catenin expression on esophageal carcinoma (EC) cells. METHODS Cell cycle distribution and apoptosis were determined using flow cytometry and annexin V apoptosis assay, respectively. Transmission electron microscopy (TEM) was used to examine changes in ultrastructure, while expression of cyclin D1 protein and mRNA was detected by western blot and real-time PCR. Proliferating cell nuclear antigen (PCNA) and extracellular signal-regulated kinase (ERK) 1/2 were evaluated by Western blot analysis. PCNA labeling index (LI) was determined by immunocytochemistry. RESULTS Compared with pGen-3-con transfected and Eca-109 cells, the percentage of G0/G1-phase pGen-3-CTNNB1 transfected cells was obviously increased (P<0.05), with no significant difference among the three groups with regard to apoptosis (P>0.05). pGen-3-CTNNB1 transfected cells exhibited obvious decrease in cyclin D1 mRNA and protein expression (P<0.05) and the ultrastructure of Eca-109 cells underwent a significant change after being transfected with pGen-3-CTNNB1, suggesting that down-regulating β-catenin expression can promote the differentiation and maturation. The expression of PCNA and the ERKI/2 phosphorylation state were also down-regulated in pGen-3-CTNNB1 transfected cells (P<0.05). At the same time, the PCNA labeling index was decreased accordingly (P<0.05). CONCLUSION Inhibition of EC Eca-109 cellproliferation by down-regulating β-catenin expression could improve cell ultrastructure by mediating blockade in G0/G1 through inhibiting cyclin D1, PCNA and the MAPK pathway (p-ERK1/2).
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Affiliation(s)
- Jin-Sheng Wang
- Central Laboratory, Peace Hospital Affiliated to Changzhi Medical University, Changzhi, China
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Abnet CC, Wang Z, Song X, Hu N, Zhou FY, Freedman ND, Li XM, Yu K, Shu XO, Yuan JM, Zheng W, Dawsey SM, Liao LM, Lee MP, Ding T, Qiao YL, Gao YT, Koh WP, Xiang YB, Tang ZZ, Fan JH, Chung CC, Wang C, Wheeler W, Yeager M, Yuenger J, Hutchinson A, Jacobs KB, Giffen CA, Burdett L, Fraumeni JF, Tucker MA, Chow WH, Zhao XK, Li JM, Li AL, Sun LD, Wei W, Li JL, Zhang P, Li HL, Cui WY, Wang WP, Liu ZC, Yang X, Fu WJ, Cui JL, Lin HL, Zhu WL, Liu M, Chen X, Chen J, Guo L, Han JJ, Zhou SL, Huang J, Wu Y, Yuan C, Huang J, Ji AF, Kul JW, Fan ZM, Wang JP, Zhang DY, Zhang LQ, Zhang W, Chen YF, Ren JL, Li XM, Dong JC, Xing GL, Guo ZG, Yang JX, Mao YM, Yuan Y, Guo ET, Zhang W, Hou ZC, Liu J, Li Y, Tang S, Chang J, Peng XQ, Han M, Yin WL, Liu YL, Hu YL, Liu Y, Yang LQ, Zhu FG, Yang XF, Feng XS, Wang Z, Li Y, Gao SG, Liu HL, Yuan L, Jin Y, Zhang YR, Sheyhidin I, Li F, Chen BP, Ren SW, Liu B, Li D, Zhang GF, Yue WB, Feng CW, Qige Q, Zhao JT, Yang WJ, Lei GY, Chen LQ, Li EM, Xu LY, Wu ZY, Bao ZQ, Chen JL, Li XC, Zhuang X, Zhou YF, Zuo XB, Dong ZM, Wang LW, Fan XP, Wang J, Zhou Q, Ma GS, Zhang QX, Liu H, Jian XY, Lian SY, Wang JS, Chang FB, Lu CD, Miao JJ, Chen ZG, Wang R, Guo M, Fan ZL, Tao P, Liu TJ, Wei JC, Kong QP, Fan L, Wang XZ, Gao FS, Wang TY, Xie D, Wang L, Chen SQ, Yang WC, Hong JY, Wang L, Qiu SL, Goldstein AM, Yuan ZQ, Chanock SJ, Zhang XJ, Taylor PR, Wang LD. Genotypic variants at 2q33 and risk of esophageal squamous cell carcinoma in China: a meta-analysis of genome-wide association studies. Hum Mol Genet 2012; 21:2132-41. [PMID: 22323360 DOI: 10.1093/hmg/dds029] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Genome-wide association studies have identified susceptibility loci for esophageal squamous cell carcinoma (ESCC). We conducted a meta-analysis of all single-nucleotide polymorphisms (SNPs) that showed nominally significant P-values in two previously published genome-wide scans that included a total of 2961 ESCC cases and 3400 controls. The meta-analysis revealed five SNPs at 2q33 with P< 5 × 10(-8), and the strongest signal was rs13016963, with a combined odds ratio (95% confidence interval) of 1.29 (1.19-1.40) and P= 7.63 × 10(-10). An imputation analysis of 4304 SNPs at 2q33 suggested a single association signal, and the strongest imputed SNP associations were similar to those from the genotyped SNPs. We conducted an ancestral recombination graph analysis with 53 SNPs to identify one or more haplotypes that harbor the variants directly responsible for the detected association signal. This showed that the five SNPs exist in a single haplotype along with 45 imputed SNPs in strong linkage disequilibrium, and the strongest candidate was rs10201587, one of the genotyped SNPs. Our meta-analysis found genome-wide significant SNPs at 2q33 that map to the CASP8/ALS2CR12/TRAK2 gene region. Variants in CASP8 have been extensively studied across a spectrum of cancers with mixed results. The locus we identified appears to be distinct from the widely studied rs3834129 and rs1045485 SNPs in CASP8. Future studies of esophageal and other cancers should focus on comprehensive sequencing of this 2q33 locus and functional analysis of rs13016963 and rs10201587 and other strongly correlated variants.
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Affiliation(s)
- Christian C Abnet
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892-7236, USA.
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Zhai CY, Wei W, Ji AF, Shen XL, Zhang GX, Yang JB, Wang HL, Liang L, Wei MX. [Effect of brucine on secretion function and proliferation capability of T lymphocytes in patients with aplastic anemia]. Zhongguo Shi Yan Xue Ye Xue Za Zhi 2011; 19:435-438. [PMID: 21518503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The aim of this study was to investigate the effect of brucine on secretion of TNF-α, IFN-γ, IL-4 and proliferation of T lymphocytes in patients with aplastic anemia (AA), and to explore its mechanism. Peripheral blood T lymphocytes from 10 patients with AA and 10 healthy volunteers were isolated, purified and cultured. T lymphocytes from the patients were divided into 0, 100, 200 and 400 µg/ml brucine-treated groups. T lymphocytes from healthy volunteers were used as control group. After being cultured for 72 hours, the levels of TNF-α, IFN-γ, IL-4 in the supernatant of cultured T lymphocytes from AA patients were detected by ELISA, and the proliferation of T lymphocytes from AA patients was detected by MTT. The results showed that compared with the normal control group, the levels of TNF-α and IFN-γ in the culture supernatant significantly increased, and IL-4 was significantly decreased. The levels of TNF-α and IFN-γ in the culture supernatant of brucine treated groups were lower, and were dependent on the concentration of brucine. However, the levels of IL-4 were found to be not obviously changed. The inhibition rate of T lymphocytes in 100, 200 and 400µg/ml brucine-treated groups were (13.61 ± 4.31)%, (14.28 ± 4.31)% and (15.12 ± 4.56)% respectively, among which the differences were not statistically significant. It is concluded that the brucine can reduce the levels of TNF-α and IFN-γ through inhibiting the proliferation of T lymphocytes in AA patients, which provides experimental basis for therapy of AA patients.
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Affiliation(s)
- Chun-Yan Zhai
- Shanxi Medical University First Clinical Hospital, Taiyuan 030001, Shanxi Province, China
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Wang JS, Ji AF, Wen JF, Ren HZ. [Effect of β-catenin gene silencing by shRNA on biologic characteristics of human esophageal carcinoma cells]. Zhonghua Bing Li Xue Za Zhi 2010; 39:835-841. [PMID: 21215100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
OBJECTIVE To study the effects of short hairpin RNA (shRNA) mediated gene silencing of β-catenin on the biological characteristics of esophageal carcinoma cells, and to provide theoretical and experimental evidence for the gene therapy of esophageal carcinoma through target inhibition of β-catenin gene. METHODS Single strand DNA was synthesized according to the hairpin RNA sequence, and then subcloned into eukaryotic expression vector pGenesil-3 to construct a shRNA-expression pDNAs driven by human U6 promoter of β-catenin (pGen-3-CTNNB1). One additional construct of random siRNA (pGen-3-con) without homologous to any human genes was constructed in a similar fashion as control.Positive clones were identified and verified by restriction cleavage and DNA sequencing analyses. pGen-3-CTNNB1 and pGen-3-con were then transfected into esophageal carcinoma cell line Eca-109 with liposome, respectively. Positive colonies were selected with G418. Expression of β-catenin protein and mRNA in the transfected and nontransfected Eca-109 cells were examined by Western blotting, immunofluorescence and RT-PCR, respectively. Xenograft tumor model was used to compare the tumorigenesis of three different cells.Expressions of β-catenin in all tumor tissues were examined by immunohistochemistry staining. The invasive abilities of three different cells were examined with transwell invasion filter and Matrigel. RESULTS β-catenin expression levels were found markedly decreased in Eca-109 cells transfected with pGen-3-CTNNB1. In vivo, transfection with β-catenin shRNA greatly impeded the tumor growth, pGen-3-con (1.18 ± 0.13) g, Eca-109 (1.38 ± 0.21) g, pGen-3-CTNNB1 (0.42 ± 0.09) g, P < 0.05. Immunohistochemistry staining showed a significantly decreased expression of β-catenin in β-catenin shRNA transfected cells than in random shRNA transfected and nontransfected cells (P < 0.05). The infiltration abilities of esophageal carcinoma cells were significantly suppressed, pGen-3-con (81 ± 5)/HPF, Eca-109 (77 ± 6)/HPF, pGen-3-CTNNB1 (41 ± 4)/HPF, P < 0.01; along with significantly decreased migration abilities, pGen-3-con (73 ± 5)/HPF, Eca-109 (69 ± 5)/HPF, pGen-3-CTNNB1 (38 ± 4)/HPF (P < 0.05). CONCLUSIONS There are abnormal expression of β-catenin and activation of Wnt signaling pathway in human esophageal carcinoma cell line Eca-109. RNA interference targeting β-catenin gene suppresses the growth of xenograft tumorigenesis in nude mouse and the invasiveness and metastatic capability of esophageal carcinoma cells.
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Affiliation(s)
- Jin-Sheng Wang
- Central Laboratory, Heping Hospital Affiliated to Changzhi Medical University, Changzhi 046000, Shanxi Province, China
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Wang LD, Zhou FY, Li XM, Sun LD, Song X, Jin Y, Li JM, Kong GQ, Qi H, Cui J, Zhang LQ, Yang JZ, Li JL, Li XC, Ren JL, Liu ZC, Gao WJ, Yuan L, Wei W, Zhang YR, Wang WP, Sheyhidin I, Li F, Chen BP, Ren SW, Liu B, Li D, Ku JW, Fan ZM, Zhou SL, Guo ZG, Zhao XK, Liu N, Ai YH, Shen FF, Cui WY, Song S, Guo T, Huang J, Yuan C, Huang J, Wu Y, Yue WB, Feng CW, Li HL, Wang Y, Tian JY, Lu Y, Yuan Y, Zhu WL, Liu M, Fu WJ, Yang X, Wang HJ, Han SL, Chen J, Han M, Wang HY, Zhang P, Li XM, Dong JC, Xing GL, Wang R, Guo M, Chang ZW, Liu HL, Guo L, Yuan ZQ, Liu H, Lu Q, Yang LQ, Zhu FG, Yang XF, Feng XS, Wang Z, Li Y, Gao SG, Qige Q, Bai LT, Yang WJ, Lei GY, Shen ZY, Chen LQ, Li EM, Xu LY, Wu ZY, Cao WK, Wang JP, Bao ZQ, Chen JL, Ding GC, Zhuang X, Zhou YF, Zheng HF, Zhang Z, Zuo XB, Dong ZM, Fan DM, He X, Wang J, Zhou Q, Zhang QX, Jiao XY, Lian SY, Ji AF, Lu XM, Wang JS, Chang FB, Lu CD, Chen ZG, Miao JJ, Fan ZL, Lin RB, Liu TJ, Wei JC, Kong QP, Lan Y, Fan YJ, Gao FS, Wang TY, Xie D, Chen SQ, Yang WC, Hong JY, Wang L, Qiu SL, Cai ZM, Zhang XJ. Genome-wide association study of esophageal squamous cell carcinoma in Chinese subjects identifies susceptibility loci at PLCE1 and C20orf54. Nat Genet 2010; 42:759-63. [PMID: 20729853 DOI: 10.1038/ng.648] [Citation(s) in RCA: 328] [Impact Index Per Article: 23.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2010] [Accepted: 06/29/2010] [Indexed: 12/13/2022]
Abstract
We performed a genome-wide association study of esophageal squamous cell carcinoma (ESCC) by genotyping 1,077 individuals with ESCC and 1,733 control subjects of Chinese Han descent. We selected 18 promising SNPs for replication in an additional 7,673 cases of ESCC and 11,013 control subjects of Chinese Han descent and 303 cases of ESCC and 537 control subjects of Chinese Uygur-Kazakh descent. We identified two previously unknown susceptibility loci for ESCC: PLCE1 at 10q23 (P(Han combined for ESCC) = 7.46 x 10(-56), odds ratio (OR) = 1.43; P(Uygur-Kazakh for ESCC) = 5.70 x 10(-4), OR = 1.53) and C20orf54 at 20p13 (P(Han combined for ESCC) = 1.21 x 10(-11), OR = 0.86; P(Uygur-Kazakh for ESCC) = 7.88 x 10(-3), OR = 0.66). We also confirmed association in 2,766 cases of gastric cardia adenocarcinoma cases and the same 11,013 control subjects (PLCE1, P(Han for GCA) = 1.74 x 10(-39), OR = 1.55 and C20orf54, P(Han for GCA) = 3.02 x 10(-3), OR = 0.91). PLCE1 and C20orf54 have important biological implications for both ESCC and GCA. PLCE1 might regulate cell growth, differentiation, apoptosis and angiogenesis. C20orf54 is responsible for transporting riboflavin, and deficiency of riboflavin has been documented as a risk factor for ESCC and GCA.
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Affiliation(s)
- Li-Dong Wang
- Cancer Research Center, Xinxiang Medical University, Xinxiang, Henan, China.
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