Increasing gall-bladder cancer mortality rate during the last decade in Chile, a high-risk area

Background: The aberrant alteration in Jab1 signalosome (COP9 Signalosome Complex Subunit 5) has been proven to be associated with the progression of several carcinomas. However the specific role and mechanism of action of Jab1 signalosome in carcinogenesis of gall bladder cancer (GBC) are poorly understood. Objective: The main objective of our study was to elucidate the role and mechanism of Jab1 signalosome in gall bladder cancer by employing siRNA. Methods: Jab1 overexpression was identified in gall bladder cancer tissue sample. The role of Jab1-siRNA approach in cell growth inhibition and apoptotic induction was then examined by RT-PCR, Western Blotting, MTT, ROS, Hoechst and FITC/Annexin-V staining. Results: In the current study, we have shown that overexpression of Jab1 stimulated the proliferation of GBC cells; whereas downregulation of Jab1 by using Jab1-siRNA approach resulted incell growth inhibition and apoptotic induction. Furthermore, we found that downregulation of Jab1 induces cell cycle arrest at G1 phase and upregulated the expression of p27, p53 and Bax gene. Moreover, Jab1-siRNA induces apoptosis by enhancing ROS generation and caspase-3 activation. In addition, combined treatment with Jab1-siRNA and gemicitabine demonstrated an enhanced decline in cell proliferation which further suggested increased efficacy of gemcitabine at a very lower dose (5μM) in combination with Jab1-siRNA. Conclusion: In conclusion, our study strongly suggests that targeting Jab1 signalosome could be a promising therapeutic target for the treatment of gall bladder cancer.

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Elucidation of the Chemopreventive Role of Stigmasterol Against Jab1 in Gall Bladder Carcinoma

Endocrine Metabolic & Immune Disorders - Drug Targets ◽

10.2174/1871530319666190206124120 ◽

2019 ◽

Vol 19 (6) ◽

pp. 826-837 ◽

Cited By ~ 3

Author(s):

Pratibha Pandey ◽

Preeti Bajpai ◽

Mohammad H. Siddiqui ◽

Uzma Sayyed ◽

Rohit Tiwari ◽

...

Keyword(s):

Cell Cycle ◽

Bladder Cancer ◽

Gall Bladder ◽

Cancer Cells ◽

Caspase 3 ◽

Annexin V ◽

Gall Bladder Cancer ◽

Apoptosis Induction ◽

Bladder Cancer Cells ◽

Hoechst Staining

Background:Plant sterols have proven a potent anti-proliferative and apoptosis inducing agent against several carcinomas including breast and prostate cancers. Jab1 has been reported to be involved in the progression of numerous carcinomas. However, antiproliferative effects of sterols against Jab1 in gall bladder cancer have not been explored yet.Objective:In the current study, we elucidated the mechanism of action of stigmasterol regarding apoptosis induction mediated via downregulation of Jab1 protein in human gall bladder cancer cells.Methods:In our study, we performed MTT and Trypan blue assay to assess the effect of stigmasterol on cell proliferation. In addition, RT-PCR and western blotting were performed to identify the effect of stigmasterol on Jab1 and p27 expression in human gall bladder cancer cells. We further performed cell cycle, Caspase-3, Hoechst and FITC-Annexin V analysis, to confirm the apoptosis induction in stigmasterol treated human gall bladder cancer cells.Results:Our results clearly indicated that stigmasterol has up-regulated the p27 expression and down-regulated Jab1 gene. These modulations of genes might occur via mitochondrial apoptosis signaling pathway. Caspase-3 gets activated with the apoptotic induction. Increase in apoptotic cells and DNA were confirmed through annexin V staining, Hoechst staining, and cell cycle analysis.Conclusion:Thus, these results strongly suggest that stigmasterol has the potential to be considered as an anticancerous therapeutic agent against Jab1 in gall bladder cancer.

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PROPOSAL FOR UTILIZATION OF COMMUNITY DISASTER MANAGEMENT PLAN SYSTEM IN FLOOD HIGH RISK AREA -IN THE CASE ON EVACUATION BEHAVIOR OF DISABLED PERSON AT HEAVY RAIN DISASTER-

Journal of Japan Society of Civil Engineers Ser F6 (Safety Problem) ◽

10.2208/jscejsp.75.2_i_75 ◽

2019 ◽

Vol 75 (2) ◽

pp. I_75-I_82

Author(s):

Chikako ISOUCHI ◽

Yukiko TSUDA ◽

Atsuko NONOMURA

Keyword(s):

High Risk ◽

Disaster Management ◽

Heavy Rain ◽

Management Plan ◽

Risk Area ◽

High Risk Area ◽

Evacuation Behavior

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74 Improving Handover Between Doctors and Nurses on An Elderly Care Ward

Age and Ageing ◽

10.1093/ageing/afab030.35 ◽

2021 ◽

Vol 50 (Supplement_1) ◽

pp. i12-i42

Author(s):

K Suseeharan ◽

T Vedutla

Keyword(s):

High Risk ◽

Patient Care ◽

Positive Impact ◽

Elderly Care ◽

Task Completion ◽

Risk Area ◽

High Risk Area ◽

Staff Members ◽

Care Ward ◽

Doctors And Nurses

Abstract Background The Royal College of Physician guidelines (2011) identified handover as a “high risk step” in patient care, especially in recent times within the NHS where shift patterns lead to more disjointed care with a high reliance on effective handover by all staff members. Introduction At Cannock Chase hospital, Fairoak ward is an elderly care rehabilitation ward where there is a large multi-disciplinary team. While working on the ward as doctors we noticed that handover between the MDT was poor. Anecdotal evidence from both doctors and nurses felt that this was a high risk area in need of improvement. Aim to improve handover between doctors and nurses on this elderly care ward. Method To measure the quality of current handover practice we did a questionnaire. A total of 12 questionnaires were completed which showed that 92% of staff felt that handover on the ward was very poor and 50% preferred both written and verbal handover. We measured the number of tasks verbally handed over between doctors and nurses over 3 days. On average 65% of the tasks were completed. We then made the below interventions and re-audited to see if there was any improvement. Interventions over 3 week period: Results Questionnaire: Measuring task completion after interventions; Conclusion This project has made a positive change qualitatively and quantitatively to the ward handover practice. Staff satisfaction regarding handover has improved and the number of “handed over” tasks completed daily has significantly improved. The written handover sheet had poor utilisation by staff but in 4 months we are going to re-audit and trial the handover sheet again to further improve service delivery. We hope this improvement will have a positive impact on patient care on this elderly care ward.

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