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Xueli Bai

Wei Yu, Wei Hu, Yongjie Shui, Xiaoyang Zhu, Chao Li, Xiaoqiu Ren, Xueli Bai, Risheng Yu, Li Shen, Tingbo Liang, Lei Zheng, Qichun Wei
OBJECTIVES: To explore the areas at highest risk for postoperative pancreatic cancer local recurrence according to the spatial location of local failures, with the aim to provide a precise target volume for pancreatic cancer adjuvant radiotherapy. METHODS: Patients with pancreatic cancer who had undergone surgery for the primary tumor in pancreas at our institution from January 2010 to August 2015 were retrospectively analyzed. All local recurrences were plotted on the computed tomography (CT) image of a representative patient according to their relative coordinates to superior mesenteric artery (SMA) or celiac axis (CA)...
October 19, 2016: Radiation Oncology
Tao Wei, Wei Chen, Liang Wen, Jian Zhang, Qi Zhang, Jiaqi Yang, Hao Liu, Bryan Wei Chen, Yue Zhou, Xinhua Feng, Qi Yang, Xueli Bai, Tingbo Liang
G protein-coupled estrogen receptor (GPER) is a novel estrogen-binding receptor involved in many pathological conditions, including cancer. In this study, we investigated the effect of GPER on hepatocellular carcinoma (HCC). Our data show GPER knockout in a diethylnitrosamine (DEN)-induced mouse tumor model significantly accelerated liver tumorigenesis, accompanied by enhanced immune cell infiltration, fibrosis, and the production of inflammatory factors, such as interleukin-6 (IL-6). We further delineated the function of GPER in macrophages and hepatic stellate cells (HSCs)...
September 1, 2016: Cancer Letters
Yu Bai, Xueli Zang, Jinshu Ma, Guangyu Xu
Diabetes mellitus (DM) is a metabolic syndrome caused by multiple genetic and environmental factors. Traditional Chinese medicine preparations have shown a comprehensive and function-regulating characteristic. Purslane (Portulaca oleracea L.) is an annual succulent herb. Currently, there have been some related reports on the treatment of diabetes with purslane. The current study was designed to separate and purify the polysaccharide, a systematic study of its physical and chemical properties, antioxidant activity, and anti-diabetic mechanism, in order to provide a theoretical basis for the development of drugs of purslane...
2016: International Journal of Molecular Sciences
Yiwen Chen, Xueli Bai, Qi Zhang, Liang Wen, Wei Su, Qihan Fu, Xu Sun, Yu Lou, Jiaqi Yang, Jingying Zhang, Qi Chen, Jianxin Wang, Tingbo Liang
Pancreatic ductal adenocarcinoma (PDAC) is an aggressive and lethal cancer, with poor outcomes. Infection with the hepatitis B virus (HBV) may be associated as a worse prognosis for PDAC patients; however, the mechanisms involved in this process are unclear. We evaluated whether HBV infection leads to PDAC with a more aggressive phenotype, and attempted to elucidate the mechanisms involved. Clinicopathological data and outcomes from 64 patients with PDAC were collected and compared between serum HBsAg+ and HBsAg- patients...
September 28, 2016: Cancer Letters
Tao Xu, Jian Zhang, Wei Chen, Shengjing Pan, Xiao Zhi, Liang Wen, Yue Zhou, Bryan Wei Chen, Junyu Qiu, Yun Zhang, Qi Yang, Xinhua Feng, Xueli Bai, Tingbo Liang
AMP-activated protein kinase family member 5 (ARK5) overexpression has been reported in many human cancers, and ARK5 is associated with poor prognosis in hepatocellular carcinoma (HCC). However, whether ARK5 is involved in HCC chemoresistance is unclear. The present study aimed to investigate the role of ARK5 in HCC chemoresistance and the underlying mechanism. In this study, we found that SNU387 and SNU449 HCC cell lines overexpressing ARK5 displayed low doxorubicin sensitivity compared to Huh7 and Hep3B HCC cell lines with ARK5 low-expression...
July 28, 2016: Cancer Letters
Xueli Bai, Xiaoyu Zhang, Fangyan Lu, Guogang Li, Shunliang Gao, Jianying Lou, Yun Zhang, Tao Ma, Ji Wang, Wei Chen, Bingfeng Huang, Tingbo Liang
INTRODUCTION: The experience of implementing enhanced recovery after surgery (ERAS) programs in pancreatic surgery is limited. The aim of this study was to evaluate the feasibility of ERAS program in pancreatic surgery in an academic medical center of China. METHODS: Between May 2014 and August 2015, 124 patients managed with an ERAS program following pancreatic surgery (ERAS group), were compared to a historical cohort of 63 patients, treated with traditional perioperative care between August 2013 and April 2014 (no-ERAS group)...
July 2016: Pancreatology: Official Journal of the International Association of Pancreatology (IAP) ... [et Al.]
Liang Wen, Chao Liang, Enjiang Chen, Wei Chen, Feng Liang, Xiao Zhi, Tao Wei, Fei Xue, Guogang Li, Qi Yang, Weihua Gong, Xinhua Feng, Xueli Bai, Tingbo Liang
Hepatocellular carcinoma (HCC) is notoriously refractory to chemotherapy because of its tendency to develop multi-drug resistance (MDR), whose various underlying mechanisms make it difficult to target. The calcium signalling pathway is associated with many cellular biological activities, and is also a critical player in cancer. However, its role in modulating tumour MDR remains unclear. In this study, stimulation by doxorubicin, hypoxia and ionizing radiation was used to induce MDR in HCC cells. A sustained aggregation of intracellular calcium was observed upon these stimuli, while inhibition of calcium signalling enhanced the cells' sensitivity to various drugs by attenuating epithelial-mesenchymal transition (EMT), Hif1-α signalling and DNA damage repair...
2016: Scientific Reports
Tingbo Liang, Wei Su, Qi Zhang, Guogang Li, Shunliang Gao, Jianying Lou, Yun Zhang, Tao Ma, Xueli Bai
BACKGROUND: Bile duct microenvironment plays several key roles in cholangiolithiasis occurrence. Sphincter of Oddi laxity (SOL) is associated with cholangiolithiasis, probably due to enhanced reflux of intestinal contents that changes the microenvironment. However, the microenvironment has not been investigated comprehensively. STUDY DESIGN: Patients with cholangiolithiasis were consecutively recruited and their bile was collected intraoperatively for high-throughput experiments...
March 2016: Journal of the American College of Surgeons
Hua Jin, Jiang Pi, Fen Yang, Chaomin Wu, Xueli Cheng, Haihua Bai, Dan Huang, Jinhuan Jiang, Jiye Cai, Zheng W Chen
Angiogenesis provides necessary nutrients and oxygen for tumor growth and metastasis; thus, every stage of angiogenesis process is the potential target for cancer therapies. Ursolic acid (UA) is reported to decrease tumor burden through anti-angiogenesis pathway, but its poor water solubility greatly limits its efficiency and clinical application. Here, a simple method for preparing UA-loaded chitosan nanoparticles (CH-UA-NPs) with anti-angiogenesis and anti-tumor activity was demonstrated. In vitro, CH-UA-NPs could significantly inhibit the proliferation, migration, and tube formation of human umbilical vascular endothelial cells (HUVECs)...
August 2016: Applied Microbiology and Biotechnology
Xueli Bai, Ling Ouyang, B O Li, Yang Zhou, Xin Wen
The aim of the present study was to investigate the expression of B cell-specific Moloney murine leukemia virus integration site 1 (BMI-1) in vulvar squamous cell carcinoma (VSCC) and vulvar intraepithelial neoplasia (VIN). Furthermore, the present study investigated the effects of BMI-1 expression on the biological behavior of A-431 human epidermoid carcinoma cells. BMI-1 expression in human VSCC and VIN tissues was detected using immunohistochemistry. Subsequently, BMI-1 expression was silenced in A-431 cells using small interfering RNA (siRNA), and BMI-1 expression was detected using reverse transcription-quantitative polymerase chain reaction and western blotting...
December 2015: Oncology Letters
Pankaj Prasson, Xueli Bai, Qi Zhang, Tingbo Liang
BACKGROUND: Laparoscopic common bile duct exploration and endoscopic retrograde cholangiopancreatography (ERCP) are secure and effective techniques that recently been used to treat bile duct stones. The purpose of this research was to assess the intra-procedural efficacy and postprocedural upshots of the laparoscopic common bile duct exploration plus laparoscopic cholecystectomy (LCBDE) and ERCP plus laparoscopic cholecystectomy (ERCP + LC). METHODS: All studies contrasting one-stage (LCBDE) with two-stage (ERCP/EST + LC) managements in patients with concomitant gallstones and common bile duct (CBD) stones were included...
August 2016: Surgical Endoscopy
Xueli Bai, Qi Zhang, Shunliang Gao, Jianying Lou, Guogang Li, Yun Zhang, Tao Ma, Yibo Zhang, Yuanliang Xu, Tingbo Liang
BACKGROUND: Pancreatic fistula (PF) is the most common significant complication after pancreaticoduodenectomy. Invagination and duct-to-mucosa anastomoses are anastomotic techniques that are commonly performed after pancreaticoduodenectomy. There are conflicting data on invagination vs duct-to-mucosa anastomoses about which is superior for minimizing the risk of PF. In addition, all previous studies involved multiple operating surgeons and failed to control for variation in surgeon expertise...
January 2016: Journal of the American College of Surgeons
Xueli Bai, Longyun Ye, Wei Chen, Chunhui Cao, Liang Wang, Jiangtao Li, Shunliang Gao, Jianying Lou, Yun Zhang, Tingbo Liang
Organ shortage is a major issue faced by both transplant surgeons and patients. To enlarge the donor pool, marginal liver grafts are being increasingly used. In this paper, we present the case of a patient in whom a polycystic liver was successfully transplanted from a donor after brain and cardiac death. To our knowledge, this is the first successful case of liver transplantation using polycystic liver from a donation after brain and cardiac death.
October 2014: Indian Journal of Surgery
Xueli Bai, Qi Zhang, Song Wu, Xiaoyu Zhang, Mingbang Wang, Fusheng He, Tao Wei, Jiaqi Yang, Yu Lou, Zhiming Cai, Tingbo Liang
Pancreatic cancer has a poor prognosis and few effective treatments. The failure of treatment is partially due to the high heterogeneity of cancer cells within the tumor. T cells target and kill cancer cells by the specific recognition of cancer-associated antigens. In this study, T cells from primary tumor and blood of sixteen patients with pancreatic cancer were characterized by deep sequencing. T cells from blood of another eight healthy volunteers were also studied as controls. By analyzing the complementary determining region 3 (CDR3) gene sequence, we found no significant differences in the T cell receptor (TCR) repertoires between patients and healthy controls...
2015: Scientific Reports
Xiao Zhi, Wei Chen, Fei Xue, Chao Liang, Bryan Wei Chen, Yue Zhou, Liang Wen, Liqiang Hu, Jian Shen, Xueli Bai, Tingbo Liang
Despite its relative rarity, pancreatic ductal adenocarcinoma (PDAC) accounts for a large percentage of cancer deaths. In this study, we investigated the in vitro efficacy of OSI-027, a selective inhibitor of mammalian target of rapamycin complex 1 (mTORC1) and mTORC2, to treat PDAC cell lines alone, and in combination with gemcitabine (GEM). Similarly, we tested the efficacy of these two compounds in a xenograft mouse model of PDAC. OSI-027 significantly arrested cell cycle in G0/G1 phase, inhibited the proliferation of Panc-1, BxPC-3, and CFPAC-1 cells, and downregulated mTORC1, mTORC2, phospho-Akt, phospho-p70S6K, phospho-4E-BP1, cyclin D1, and cyclin-dependent kinase 4 (CDK4) in these cells...
September 22, 2015: Oncotarget
Yue Zhou, Chao Liang, Fei Xue, Wei Chen, Xiao Zhi, Xinhua Feng, Xueli Bai, Tingbo Liang
Doxorubicin is a conventional and effective chemotherapy drug against hepatocellular carcinoma (HCC). However, during long-term doxorubicin monotherapy, HCC cells may eventually develop acquired-resistance to doxorubicin which results in recurrence and a poor prognosis. Salinomycin, an ionophore antibiotic, was recently reported to selectively kill human cancer stem cells (CSCs) which were response for chemoresistance. In this study, salinomycin was found to exert synergistic cytotoxicity with doxorubicin in HCC cells and be capable of inhibiting doxorubicin-induced epithelial-mesenchymal transition (EMT), an important cellular process involved in the acquired chemoresistance of tumors...
April 30, 2015: Oncotarget
Hao Liu, Wei Chen, Chao Liang, Bryan Wei Chen, Xiao Zhi, Shufeng Zhang, Xiaoxiao Zheng, Xueli Bai, Tingbo Liang
Resistance to chemotherapeutic drugs is a major obstacle in hepatocellular carcinoma (HCC) therapy. However, the underlying mechanisms are not well understood. Recent evidence suggests that deubiquitinases (DUB) are key regulators in the mechanisms of cell proliferation, apoptosis and chemoresistance. The present study aimed to investigate whether WP1130, which inhibits activity of deubiquitinases, exerts synergistic cytotoxicity with doxorubicin in HCC and the underlying mechanisms. In the study, we found that Huh7, HepG2, and SNU387 HCC cells with p53 expression displayed enhanced response to the combination therapy compared with p53-deficient HCC cells (Hep3B) in the manner of inhibiting cell proliferation...
June 1, 2015: Cancer Letters
Yanfen Bai, Huiping Bi, Yibin Zhuang, Chang Liu, Tao Cai, Xiaonan Liu, Xueli Zhang, Tao Liu, Yanhe Ma
Salidroside (1) is the most important bioactive component of Rhodiola (also called as "Tibetan Ginseng"), which is a valuable medicinal herb exhibiting several adaptogenic properties. Due to the inefficiency of plant extraction and chemical synthesis, the supply of salidroside (1) is currently limited. Herein, we achieved unprecedented biosynthesis of salidroside (1) from glucose in a microorganism. First, the pyruvate decarboxylase ARO10 and endogenous alcohol dehydrogenases were recruited to convert 4-hydroxyphenylpyruvate (2), an intermediate of L-tyrosine pathway, to tyrosol (3) in Escherichia coli...
2014: Scientific Reports
Xueli Bai, Xiao Zhi, Qi Zhang, Feng Liang, Wei Chen, Chao Liang, Qida Hu, Xu Sun, Zhengping Zhuang, Tingbo Liang
Pancreatic cancer is a malignant disease without efficient treatment. Improved treatments are urgently needed to enhance or replace chemotherapy. Here we used a small molecular compound LB-100 to assess the effect of pharmacological inhibition of protein phosphatase 2A (PP2A) in combination with doxorubicin on the proliferation of pancreatic cancer in cell lines and a xenograft model. LB-100 moderately reduced PP2A activity and the growth of the cell lines but did not show chemosensitization in vitro. In vivo, however, LB-100 synergistically enhanced the activity of doxorubicin...
December 28, 2014: Cancer Letters
Jingrong Ye, Hongyan Lu, Xueli Su, Ruolei Xin, Lishi Bai, Ke Xu, Shuangqing Yu, Xia Feng, Hong Yan, Xiong He, Yi Zeng
To investigate the origin and evolutionary history of the spread of HIV-1 subtype B in China, a total of 409 sequences of pol gene sampled from 1994 to 2012 in 29 provinces across China was subjected to phylogenetic and Bayesian molecular clock analyses. The study reveals that subtype B strains in China are genetically diverse and can be classified into four distinct subgroups, namely B' (Thai-B), BJ-B (Beijing-B), Pan-B (Pandemic-B), and TW-B (Taiwan-B), according to the origin of the sequences. The BJ-B and TW-B are reported for the first time...
September 2014: AIDS Research and Human Retroviruses
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