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Liu MT, Zhang Y, Xiang CG, Yang T, Wang XH, Lu QK, Lu HM, Fan C, Feng CL, Yang XQ, Zou DW, Li H, Tang W. Methionine-choline deficient diet deteriorates DSS-induced murine colitis through disturbance of gut microbes and infiltration of macrophages. Acta Pharmacol Sin 2024:10.1038/s41401-024-01291-y. [PMID: 38684800 DOI: 10.1038/s41401-024-01291-y] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Accepted: 04/12/2024] [Indexed: 05/02/2024] Open
Abstract
Ulcerative colitis (UC) is associated with changed dietary habits and mainly linked with the gut microbiota dysbiosis, necroptosis of epithelial cells, and mucosal ulcerations. Liver dysfunction and abnormal level of liver metabolism indices were identified in UC patients, suggesting a close interaction between gut and liver disorders. Methionine-choline deficient diet (MCD) has been shown to induce persistent alterations of gut microbiota and metabolome during hepatitis. In this study we further explored the disease phenotypes in UC patients and investigated whether MCD functioned as a trigger for UC susceptibility. After assessing 88 serum specimens from UC patients, we found significant liver dysfunction and dyslipidemia including abnormal ALT, AST, TG, TC, LDL-c and HDL-c. Liver dysfunction and dyslipidemia were confirmed in DSS-induced colitis mice. We fed mice with MCD for 14 days to cause mild liver damage, and then treated with DSS for 7 days. We found that MCD intake significantly exacerbated the pathogenesis of mucosal inflammation in DSS-induced acute, progressive, and chronic colitis, referring to promotion of mucosal ulcers, colon shortening, diarrhea, inflammatory immune cell infiltration, cytokines release, and abnormal activation of inflammatory macrophages in colon and liver specimens. Intraperitoneal injection of clodronate liposomes to globally delete macrophages dramatically compromised the pathogenesis of MCD-triggering colitis. In addition, MCD intake markedly changed the production pattern of short-chain fatty acids (SCFAs) in murine stools, colons, and livers. We demonstrated that MCD-induced colitis pathogenesis largely depended on the gut microbes and the disease phenotypes could be transmissible through fecal microbiota transplantation (FMT). In conclusion, this study supports the concept that intake of MCD predisposes to experimental colitis and enhances its pathogenesis via modulating gut microbes and macrophages in mice.
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Affiliation(s)
- Mo-Ting Liu
- Laboratory of Anti-inflammation and Immunopharmacology, State Key Laboratory of Chemical Biology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China
- School of Pharmacy, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yao Zhang
- Department of Gastroenterology, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Cai-Gui Xiang
- Laboratory of Anti-inflammation and Immunopharmacology, State Key Laboratory of Chemical Biology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China
- School of Pharmacy, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Tao Yang
- Laboratory of Anti-inflammation and Immunopharmacology, State Key Laboratory of Chemical Biology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China
- School of Pharmacy, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiao-Han Wang
- Laboratory of Anti-inflammation and Immunopharmacology, State Key Laboratory of Chemical Biology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China
- School of Pharmacy, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Qiu-Kai Lu
- Laboratory of Anti-inflammation and Immunopharmacology, State Key Laboratory of Chemical Biology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China
- School of Pharmacy, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Hui-Min Lu
- Laboratory of Anti-inflammation and Immunopharmacology, State Key Laboratory of Chemical Biology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China
- School of Pharmacy, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Chen Fan
- Laboratory of Anti-inflammation and Immunopharmacology, State Key Laboratory of Chemical Biology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China
| | - Chun-Lan Feng
- Laboratory of Anti-inflammation and Immunopharmacology, State Key Laboratory of Chemical Biology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China
| | - Xiao-Qian Yang
- Laboratory of Anti-inflammation and Immunopharmacology, State Key Laboratory of Chemical Biology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China
| | - Duo-Wu Zou
- Department of Gastroenterology, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China.
| | - Heng Li
- Laboratory of Anti-inflammation and Immunopharmacology, State Key Laboratory of Chemical Biology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China.
| | - Wei Tang
- Laboratory of Anti-inflammation and Immunopharmacology, State Key Laboratory of Chemical Biology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China.
- School of Pharmacy, University of Chinese Academy of Sciences, Beijing, 100049, China.
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Pei XZ, Cai M, Jiang DW, Chen SH, Wang QQ, Lu HM, Lu YF. FAM53B promotes pancreatic ductal adenocarcinoma metastasis by regulating macrophage M2 polarization. World J Gastrointest Oncol 2024; 16:1479-1499. [PMID: 38660645 PMCID: PMC11037046 DOI: 10.4251/wjgo.v16.i4.1479] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 01/08/2024] [Accepted: 03/01/2024] [Indexed: 04/10/2024] Open
Abstract
BACKGROUND Our study investigated the role of FAM53B in regulating macrophage M2 polarization and its potential mechanisms in promoting pancreatic ductal adenocarcinoma (PDAC) metastasis. AIM To further investigate the role of FAM53B in regulating macrophage M2 polarization and its potential mechanism in promoting PDAC metastasis. Our goal is to determine how FAM53B affects macrophage M2 polarization and to define its underlying mechanism in PDAC metastasis. METHODS Cell culture and various experiments, including protein analysis, immunohistochemistry, and animal model experiments, were conducted. We compared FAM53B expression between PDAC tissues and healthy tissues and assessed the correlation of FAM53B expression with clinical features. Our study analyzed the role of FAM53B in macrophage M2 polarization in vitro by examining the expression of relevant markers. Finally, we used a murine model to study the role of FAM53B in PDAC metastasis and analyzed the potential underlying mechanisms. RESULTS Our research showed that there was a significant increase in FAM53B levels in PDAC tissues, which was linked to adverse tumor features. Experimental findings indicated that FAM53B can enhance macrophage M2 polarization, leading to increased anti-inflammatory factor release. The results from the mouse model further supported the role of FAM53B in PDAC metastasis, as blocking FAM53B prevented tumor cell invasion and metastasis. CONCLUSION FAM53B promotes PDAC metastasis by regulating macrophage M2 polarization. This discovery could lead to the development of new strategies for treating PDAC. For example, interfering with the FAM53B signaling pathway may prevent cancer spread. Our research findings also provide important information for expanding our understanding of PDAC pathogenesis.
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Affiliation(s)
- Xuan-Zeng Pei
- Department of Hepatological Surgery, The First Hospital of Jiaxing, Jiaxing 314000, Zhejiang Province, China
| | - Min Cai
- Department of Hepatological Surgery, The First Hospital of Jiaxing, Jiaxing 314000, Zhejiang Province, China
| | - Da-Wei Jiang
- Department of Hepatological Surgery, The First Hospital of Jiaxing, Jiaxing 314000, Zhejiang Province, China
| | - Song-Hai Chen
- Department of Hepatological Surgery, The First Hospital of Jiaxing, Jiaxing 314000, Zhejiang Province, China
| | - Qing-Qing Wang
- Department of Hepatological Surgery, The First Hospital of Jiaxing, Jiaxing 314000, Zhejiang Province, China
| | - Hui-Min Lu
- Department of General Surgery, West China Hospital of Sichuan University, Chengdu 610044, Sichuan Province, China
| | - Yi-Fan Lu
- Department of Hepatological Surgery, The First Hospital of Jiaxing, Jiaxing 314000, Zhejiang Province, China
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Yang T, Xiang CG, Wang XH, Li QQ, Lei SY, Zhang KR, Ren J, Lu HM, Feng CL, Tang W. RIPK1 inhibitor ameliorates pulmonary injury by modulating the function of neutrophils and vascular endothelial cells. Cell Death Discov 2024; 10:152. [PMID: 38521771 PMCID: PMC10960796 DOI: 10.1038/s41420-024-01921-8] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Revised: 03/15/2024] [Accepted: 03/18/2024] [Indexed: 03/25/2024] Open
Abstract
Acute lung injury (ALI) is an acute and progressive hypoxic respiratory failure that could progress to acute respiratory distress syndrome (ARDS) with a high mortality rate, thus immediate medical attention and supportive care are necessary. The pathophysiology of ALI is characterized by the disruption of the alveolar-capillary barrier and activation of neutrophils, leading to lung tissue damage. The receptor-interacting protein kinase 1 (RIPK1) has emerged as a promising target for the treatment of multiple inflammatory diseases, but the role of RIPK1 in the ALI remains poorly understood. In this study, we aimed to figure out the pathological role of RIPK1 in ALI, especially in the pulmonary immune microenvironment involving neutrophils and endothelial cells. In vivo experiments showed that RIPK1 inhibitor protected against lipopolysaccharide (LPS)-induced lung injury in mouse models, with reduced neutrophils and monocytes infiltration in the lungs. Further studies demonstrated that, besides the inhibitory action on necroptosis, RIPK1 inhibitor directly suppressed reactive oxygen species (ROS) generation and inflammatory cytokines secretion from neutrophils. Furthermore, RIPK1 inhibition maintains the barrier function in TNF-α-primed vascular endothelial cells and prevents their activation induced by the supernatant from LPS-stimulated neutrophils. Mechanistically, the aforementioned effects of RIPK1 inhibitor are associated with the NF-κB signaling pathway, which is partially independent of necroptosis inhibition. These results provide new evidence that RIPK1 inhibitor directly regulates the function of neutrophils and endothelial cells, as well as interferes with the interactions between these two cell types, therefore contributing to a better understanding of RIPK1 in ALI and providing a potential avenue for future therapeutic interventions.
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Affiliation(s)
- Tao Yang
- State Key Laboratory of Chemical Biology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China
- School of Pharmacy, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Cai-Gui Xiang
- State Key Laboratory of Chemical Biology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China
- School of Pharmacy, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiao-Han Wang
- State Key Laboratory of Chemical Biology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China
- School of Pharmacy, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Qing-Qing Li
- State Key Laboratory of Chemical Biology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China
| | - Shu-Yue Lei
- State Key Laboratory of Chemical Biology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China
- School of Pharmacy, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Kai-Rong Zhang
- School of Pharmaceutical Science, Nanchang University, Nanchang, 330006, China
| | - Jing Ren
- School of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing, 210000, China
| | - Hui-Min Lu
- State Key Laboratory of Chemical Biology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China
- School of Pharmacy, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Chun-Lan Feng
- State Key Laboratory of Chemical Biology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China
| | - Wei Tang
- State Key Laboratory of Chemical Biology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China.
- School of Pharmacy, University of Chinese Academy of Sciences, Beijing, 100049, China.
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Chen R, Chen HQ, Li RD, Lu HM. Different timing for abdominal paracentesis catheter placement and drainage in severe acute pancreatitis complicated by intra-abdominal fluid accumulation. World J Gastrointest Surg 2024; 16:134-142. [PMID: 38328315 PMCID: PMC10845288 DOI: 10.4240/wjgs.v16.i1.134] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 11/28/2023] [Accepted: 12/15/2023] [Indexed: 01/25/2024] Open
Abstract
BACKGROUND Non-surgical methods such as percutaneous drainage are crucial for the treatment of patients with severe acute pancreatitis (SAP). However, there is still an ongoing debate regarding the optimal timing for abdominal paracentesis catheter placement and drainage. AIM To explore the influence of different timing for abdominal paracentesis catheter placement and drainage in SAP complicated by intra-abdominal fluid accumulation. METHODS Using a retrospective approach, 184 cases of SAP complicated by intra-abdominal fluid accumulation were enrolled and categorized into three groups based on the timing of catheter placement: group A (catheter placement within 2 d of symptom onset, n = 89), group B (catheter placement between days 3 and 5 after symptom onset, n = 55), and group C (catheter placement between days 6 and 7 after symptom onset, n = 40). The differences in progression rate, mortality rate, and the number of cases with organ dysfunction were compared among the three groups. RESULTS The progression rate of group A was significantly lower than those in groups B and groups C (2.25% vs 21.82% and 32.50%, P < 0.05). Further, the proportion of patients with at least one organ dysfunction in group A was significantly lower than those in groups B and groups C (41.57% vs 70.91% and 75.00%, P < 0.05). The mortality rates in group A, group B, and group C were similar (P > 0.05). At postoperative day 3, the levels of C-reactive protein (55.41 ± 19.32 mg/L vs 82.25 ± 20.41 mg/L and 88.65 ± 19.14 mg/L, P < 0.05), procalcitonin (1.36 ± 0.51 ng/mL vs 3.20 ± 0.97 ng/mL and 3.41 ± 0.98 ng/mL, P < 0.05), tumor necrosis factor-alpha (15.12 ± 6.63 pg/L vs 22.26 ± 9.96 pg/L and 23.39 ± 9.12 pg/L, P < 0.05), interleukin-6 (332.14 ± 90.16 ng/L vs 412.20 ± 88.50 ng/L and 420.08 ± 87.65ng/L, P < 0.05), interleukin-8 (415.54 ± 68.43 ng/L vs 505.80 ± 66.90 ng/L and 510.43 ± 68.23ng/L, P < 0.05) and serum amyloid A (270.06 ± 78.49 mg/L vs 344.41 ± 81.96 mg/L and 350.60 ± 80.42 mg/L, P < 0.05) were significantly lower in group A compared to those in groups B and group C. The length of hospital stay in group A was significantly lower than those in groups B and group C (24.50 ± 4.16 d vs 35.54 ± 6.62 d and 38.89 ± 7.10 d, P < 0.05). The hospitalization expenses in group A were also significantly lower than those in groups B and groups C [2.70 (1.20, 3.55) ten-thousand-yuan vs 5.50 (2.98, 7.12) ten-thousand-yuan and 6.00 (3.10, 8.05) ten-thousand-yuan, P < 0.05). The incidence of complications in group A was markedly lower than that in group C (5.62% vs 25.00%, P < 0.05), and similar to group B (P > 0.05). CONCLUSION Percutaneous catheter drainage for the treatment of SAP complicated by intra-abdominal fluid accumulation is most effective when performed within 2 d of onset.
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Affiliation(s)
- Rui Chen
- Department of General Surgery, Chengdu Sixth People’s Hospital, Chengdu 610058, Sichuan Province, China
| | - Hua-Qiang Chen
- Department of General Surgery, Chengdu Sixth People’s Hospital, Chengdu 610058, Sichuan Province, China
| | - Rui-Die Li
- Department of General Surgery, Chengdu Sixth People’s Hospital, Chengdu 610058, Sichuan Province, China
| | - Hui-Min Lu
- West China Center of Exellence for Pancreatitis, Institute of Integrated Traditional Chinese and Western Medicine, West China Hospital, Sichuan University; Division of Pancreatic Surgery, Department of General Surgery, West China Hospital, Sichuan University, Chengdu 610041, Sichuan Province, China
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5
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Gu J, Yan GM, Kong XL, Zhang YY, Huang LH, Lu HM. Assessing the causal relationship between immune traits and systemic lupus erythematosus by bi-directional Mendelian randomization analysis. Mol Genet Genomics 2023; 298:1493-1503. [PMID: 37845373 DOI: 10.1007/s00438-023-02071-9] [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: 10/04/2022] [Accepted: 09/23/2023] [Indexed: 10/18/2023]
Abstract
Previous studies have observed relationships between immune cells and systemic lupus erythematosus (SLE), but their causal links remain undetermined. Based on the public available genome-wide association studies (GWAS) summary statistics, we conducted two-sample Mendelian randomization (MR) to evaluate the associations between 731 immune phenotypes and SLE pairs. Pairwise pleiotropy analysis was performed to identify pleiotropic genes for significant immunophenotype-SLE pairs. A comprehensive gene function analysis was undertaken to explore the mechanisms of immune cells in SLE. By using the instrumental variables extracted from GWAS data, we observed that increased levels of five immune phenotypes were causally associated with SLE risk (FDR < 0.05), that were CD20 on IgD+ CD38- naïve, BAFF-R on IgD+ CD38dim, CD39+ secreting Treg AC, CD14- CD16+ monocyte AC, and HLA DR on CD14+ monocyte. Pairwise gene-based analyses identified a total of 38 pleiotropic genes for 5 significant pairs identified and gene set enrichment analysis revealed the involvement of the identified pleiotropic genes in complex pathways (i.e., systemic lupus erythematosus, an integral component of luminal side of endoplasmic reticulum membrane, C-type lectin receptor signaling pathway and regulation of hormone secretion). This study demonstrates that the immune response influences the progression of SLE in a complex pattern. These findings greatly improve our understanding of the interaction between immune response and SLE risk and also aid in the design of therapeutic strategies from an immunological perspective.
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Affiliation(s)
- Jie Gu
- Department of Outpatient and Emergency, First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, People's Republic of China
| | - Guan-Min Yan
- Department of Outpatient and Emergency, First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, People's Republic of China
| | - Xiao-Lin Kong
- Department of Outpatient and Emergency, First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, People's Republic of China
| | - Yin-Ying Zhang
- Department of Outpatient and Emergency, First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, People's Republic of China
| | - Li-Hong Huang
- Department of Biostatistics, Zhongshan Hospital, Fudan University, Shanghai, People's Republic of China.
| | - Hui-Min Lu
- Department of Outpatient and Emergency, First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, People's Republic of China.
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Li ZL, Li M, Xiong JJ, Lu HM. The impact of conversion during minimally invasive pancreatoduodenectomy: A meta-analysis. Asian J Surg 2023; 46:1539-1540. [PMID: 36253255 DOI: 10.1016/j.asjsur.2022.09.074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Accepted: 09/19/2022] [Indexed: 11/17/2022] Open
Affiliation(s)
- Zhen-Lu Li
- Department of Pancreatic Surgery, West China Hospital, Sichuan University, No. 37, Guoxue Alley, Chengdu 610041, Sichuan Province, China
| | - Mao Li
- Department of Pancreatic Surgery, West China Hospital, Sichuan University, No. 37, Guoxue Alley, Chengdu 610041, Sichuan Province, China
| | - Jun-Jie Xiong
- Department of Pancreatic Surgery, West China Hospital, Sichuan University, No. 37, Guoxue Alley, Chengdu 610041, Sichuan Province, China
| | - Hui-Min Lu
- Department of Pancreatic Surgery, West China Hospital, Sichuan University, No. 37, Guoxue Alley, Chengdu 610041, Sichuan Province, China.
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Yue C, Wang A, Hu WM, Lu HM. Primary pleomorphic liposarcoma of the pancreas: A case report. Asian J Surg 2022; 46:1902-1903. [PMID: 36528528 DOI: 10.1016/j.asjsur.2022.10.091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Accepted: 10/27/2022] [Indexed: 12/23/2022] Open
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Yang DJ, Wang XD, Fu XY, Lu HM, Zhou ZG, Liu Y. MyD88 deficiency aggravates the severity of acute pancreatitis by promoting MyD88-independent TRIF pathway-mediated necrosis. Ann Transl Med 2022; 10:1214. [PMID: 36544673 PMCID: PMC9761135 DOI: 10.21037/atm-22-5134] [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] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Accepted: 11/07/2022] [Indexed: 11/23/2022]
Abstract
Background With uncontrolled inflammatory progression, acute pancreatitis (AP) can progress to severe acute pancreatitis (SAP). Inflammation and parenchymal cell death are key pathologic responses of AP. Toll-like receptor 4 (TLR4) plays a pro-inflammatory role in AP. Myeloid differentiation primary response protein 88 (MyD88) is the most essential utilized adaptor of TLR4, but its role in AP remains unclear. We investigated the potential role of MyD88 in the pathogenesis of AP. Methods An AP model was induced by administering either cerulein or L-arginine to wild-type or MyD88-deficient mice. Additionally, receptor-interacting protein kinase 1 (RIP1) inhibitor necrostatin-1 (Nec-1) was administered to the MyD88-/- mice. The severity of AP was determined by measuring serum amylase and lipase activities, quantifying pancreatic myeloperoxidase (MPO) activity, and histological examination. The effects of MyD88 deletion on cell death and the inflammatory response were determined by measuring apoptosis, necrosis, and inflammatory cytokines. Western blot was used to assess the necrotic mediators, RIP1 and RIP3. Results The deletion of MyD88 resulted in more severe acute experimental pancreatitis as assessed by increased amylase and lipase activities, increased pancreatic MPO activity, a reduced anti-inflammatory response, reduced apoptosis, and increased necrosis. Additionally, Nec-1 treatment significantly reduced necrosis in the MyD88-/- mice. Conclusions The deletion of MyD88 inhibited the TLR4/MyD88-dependent pathway mediated protective immune defense response and enhanced TLR4/MyD88-independent TRIF pathway-mediated pancreatic necrosis, which in turn aggravated the severity of AP. The critical role of MyD88 in immune defense response and cell death indicates that MyD88 represents a potential therapeutic target in the management of AP.
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Affiliation(s)
- Du-Jiang Yang
- Department of Pancreatic Surgery, West China Hospital, Sichuan University, Chengdu, China
| | - Xiao-Dong Wang
- Department of Gastroenterological Surgery, West China Hospital, Sichuan University, Chengdu, China
| | - Xiao-Ying Fu
- Colorectal Cancer Center, Department of General Surgery, West China Hospital, Sichuan University, Chengdu, China
| | - Hui-Min Lu
- Department of Pancreatic Surgery, West China Hospital, Sichuan University, Chengdu, China
| | - Zong-Guang Zhou
- Colorectal Cancer Center, Department of General Surgery, West China Hospital, Sichuan University, Chengdu, China;,Institute of Digestive Surgery and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Yong Liu
- Colorectal Cancer Center, Department of General Surgery, West China Hospital, Sichuan University, Chengdu, China;,Institute of Digestive Surgery and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
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9
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Yang FC, Wang C, Zhu J, Gai QJ, Mao M, He J, Qin Y, Yao XX, Wang YX, Lu HM, Cao MF, He MM, Wen XM, Leng P, Cai XW, Yao XH, Bian XW, Wang Y. Inhibitory effects of temozolomide on glioma cells is sensitized by RSL3-induced ferroptosis but negatively correlated with expression of ferritin heavy chain 1 and ferritin light chain. J Transl Med 2022; 102:741-752. [PMID: 35351965 DOI: 10.1038/s41374-022-00779-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 02/24/2022] [Accepted: 02/25/2022] [Indexed: 11/10/2022] Open
Abstract
Invasive growth of glioblastoma makes residual tumor unremovable by surgery and leads to disease relapse. Temozolomide is widely used first-line chemotherapy drug to treat glioma patients, but development of temozolomide resistance is almost inevitable. Ferroptosis, an iron-dependent form of non-apoptotic cell death, is found to be related to temozolomide response of gliomas. However, whether inducing ferroptosis could affect invasive growth of glioblastoma cells and which ferroptosis-related regulators were involved in temozolomide resistance are still unclear. In this study, we treated glioblastoma cells with RSL3, a ferroptosis inducer, in vitro (cell lines) and in vivo (subcutaneous and orthotopic animal models). The treated glioblastoma cells with wild-type or mutant IDH1 were subjected to RNA sequencing for transcriptomic profiling. We then analyze data from our RNA sequencing and public TCGA glioma database to identify ferroptosis-related biomarkers for prediction of prognosis and temozolomide resistance in gliomas. Analysis of transcriptome data from RSL3-treated glioblastoma cells suggested that RSL3 could inhibit glioblastoma cell growth and suppress expression of genes involved in cell cycle. RSL3 effectively reduced mobility of glioblastoma cells through downregulation of critical genes involved in epithelial-mesenchymal transition. Moreover, RSL3 in combination with temozolomide showed suppressive efficacy on glioblastoma cell growth, providing a promising therapeutic strategy for glioblastoma treatment. Although temozolomide attenuated invasion of glioblastoma cells with mutant IDH1 more than those with wild-type IDH1, the combination of RSL3 and temozolomide similarly impaired invasive ability of glioblastoma cells in spite of IDH1 status. Finally, we noticed that both ferritin heavy chain 1 and ferritin light chain predicted unfavorable prognosis of glioma patients and were significantly correlated with mRNA levels of methylguanine methyltransferase as well as temozolomide resistance. Altogether, our study provided rationale for combination of RSL3 with temozolomide to suppress glioblastoma cells and revealed ferritin heavy chain 1 and ferritin light chain as biomarkers to predict prognosis and temozolomide resistance of glioma patients.
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Affiliation(s)
- Fei-Cheng Yang
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Chuan Wang
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Jiang Zhu
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Qu-Jing Gai
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Min Mao
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Jiang He
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Yan Qin
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Xiao-Xue Yao
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Yan-Xia Wang
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Hui-Min Lu
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, China.,Biobank of Institute of Pathology, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Mian-Fu Cao
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Ming-Min He
- Department of Obstetrics and Gynecology, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Xian-Mei Wen
- Department of Pathology, General Hospital of Central Theater Command of PLA, Wuhan, China
| | - Ping Leng
- Department of Pharmacy, the Affiliated Hospital of Qingdao University, Qingdao, China
| | - Xiong-Wei Cai
- Department of Obstetrics and Gynecology, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Xiao-Hong Yao
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Xiu-Wu Bian
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Yan Wang
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, China.
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10
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Yue C, Yang DJ, Lu HM, Hu WM. Extensive necrotic abscesses invading the back muscles in acute necrotizing pancreatitis: A case report. Asian J Surg 2022; 45:2138-2139. [PMID: 35680511 DOI: 10.1016/j.asjsur.2022.04.136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Accepted: 04/29/2022] [Indexed: 02/05/2023] Open
Affiliation(s)
- Chao Yue
- Department of Pancreatic Surgery, West China Hospital, Sichuan University, No. 37, Guoxue Alley, Chengdu, 610041, Sichuan Province, China
| | - Du-Jiang Yang
- Department of Gastrointestinal Surgery, West China Hospital, Sichuan University, No. 37, Guoxue Alley, Chengdu, 610041, Sichuan Province, China
| | - Hui-Min Lu
- Department of Pancreatic Surgery, West China Hospital, Sichuan University, No. 37, Guoxue Alley, Chengdu, 610041, Sichuan Province, China
| | - Wei-Ming Hu
- Department of Pancreatic Surgery, West China Hospital, Sichuan University, No. 37, Guoxue Alley, Chengdu, 610041, Sichuan Province, China.
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11
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Yang DJ, Lu HM, Liu Y, Li M, Hu WM, Zhou ZG. Development and validation of a prediction model for moderately severe and severe acute pancreatitis in pregnancy. World J Gastroenterol 2022; 28:1588-1600. [PMID: 35582133 PMCID: PMC9048464 DOI: 10.3748/wjg.v28.i15.1588] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2021] [Revised: 02/02/2022] [Accepted: 03/06/2022] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND The severity of acute pancreatitis in pregnancy (APIP) is correlated with higher risks of maternal and fetal death.
AIM To develop a nomogram that could predict moderately severe and severe acute pancreatitis in pregnancy (MSIP).
METHODS Patients with APIP admitted to West China Hospital between January 2012 and December 2018 were included in this study. They were divided into mild acute pancreatitis in pregnancy (MAIP) and MSIP. Characteristic parameters and laboratory results were collected. The training set and test set were randomly divided at a ratio of 7:3. Least absolute shrinkage and selection operator regression was used to select potential prognostic factors. A nomogram was developed by logistic regression. A random forest model was used to validate the stability of the prediction factors. Receiver operating characteristic curves and calibration curves were used to evaluate the model’s predictive performance.
RESULTS A total of 190 patients were included in this study. A total of 134 patients (70.5%) and 56 patients (29.5%) were classified as having MAIP and MSIP, respectively. Four independent predictors (lactate dehydrogenase, triglyceride, cholesterol, and albumin levels) were identified for MSIP. A nomogram prediction model based on these factors was established. The model had areas under the curve of 0.865 and 0.853 in the training and validation sets, respectively. The calibration curves showed that the nomogram has a good consistency.
CONCLUSION A nomogram including lactate dehydrogenase, triglyceride, cholesterol, and albumin levels as independent predictors was built with good performance for MSIP prediction.
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Affiliation(s)
- Du-Jiang Yang
- Department of Gastroenterological Surgery, West China Hospital, Sichuan University, Chengdu 610041, Sichuan Province, China
| | - Hui-Min Lu
- Department of Pancreatic Surgery, West China Hospital, Sichuan University, Chengdu 610041, Sichuan Province, China
| | - Yong Liu
- Department of Gastroenterological Surgery, West China Hospital, Sichuan University, Chengdu 610041, Sichuan Province, China
| | - Mao Li
- Department of Pancreatic Surgery, West China Hospital, Sichuan University, Chengdu 610041, Sichuan Province, China
| | - Wei-Ming Hu
- Department of Pancreatic Surgery, West China Hospital, Sichuan University, Chengdu 610041, Sichuan Province, China
| | - Zong-Guang Zhou
- Department of Gastroenterological Surgery, West China Hospital, Sichuan University, Chengdu 610041, Sichuan Province, China
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12
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Gai QJ, Fu Z, He J, Mao M, Yao XX, Qin Y, Lan X, Zhang L, Miao JY, Wang YX, Zhu J, Yang FC, Lu HM, Yan ZX, Chen FL, Shi Y, Ping YF, Cui YH, Zhang X, Liu X, Yao XH, Lv SQ, Bian XW, Wang Y. EPHA2 mediates PDGFA activity and functions together with PDGFRA as prognostic marker and therapeutic target in glioblastoma. Signal Transduct Target Ther 2022; 7:33. [PMID: 35105853 PMCID: PMC8807725 DOI: 10.1038/s41392-021-00855-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Revised: 11/19/2021] [Accepted: 12/05/2021] [Indexed: 11/10/2022] Open
Abstract
Platelet-derived growth subunit A (PDGFA) plays critical roles in development of glioblastoma (GBM) with substantial evidence from TCGA database analyses and in vivo mouse models. So far, only platelet-derived growth receptor α (PDGFRA) has been identified as receptor for PDGFA. However, PDGFA and PDGFRA are categorized into different molecular subtypes of GBM in TCGA_GBM database. Our data herein further showed that activity or expression deficiency of PDGFRA did not effectively block PDGFA activity. Therefore, PDGFRA might be not necessary for PDGFA function.To profile proteins involved in PDGFA function, we performed co-immunoprecipitation (Co-IP) and Mass Spectrum (MS) and delineated the network of PDGFA-associated proteins for the first time. Unexpectedly, the data showed that EPHA2 could be temporally activated by PDGFA even without activation of PDGFRA and AKT. Furthermore, MS, Co-IP, in vitro binding thermodynamics, and proximity ligation assay consistently proved the interaction of EPHA2 and PDGFA. In addition, we observed that high expression of EPHA2 leaded to upregulation of PDGF signaling targets in TCGA_GBM database and clinical GBM samples. Co-upregulation of PDGFRA and EPHA2 leaded to worse patient prognosis and poorer therapeutic effects than other contexts, which might arise from expression elevation of genes related with malignant molecular subtypes and invasive growth. Due to PDGFA-induced EPHA2 activation, blocking PDGFRA by inhibitor could not effectively suppress proliferation of GBM cells, but simultaneous inhibition of both EPHA2 and PDGFRA showed synergetic inhibitory effects on GBM cells in vitro and in vivo. Taken together, our study provided new insights on PDGFA function and revealed EPHA2 as a potential receptor of PDGFA. EPHA2 might contribute to PDGFA signaling transduction in combination with PDGFRA and mediate the resistance of GBM cells to PDGFRA inhibitor. Therefore, combination of inhibitors targeting PDGFRA and EHA2 represented a promising therapeutic strategy for GBM treatment.
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Affiliation(s)
- Qu-Jing Gai
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Zhen Fu
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Jiang He
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Min Mao
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Xiao-Xue Yao
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Yan Qin
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Xi Lan
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Lin Zhang
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Jing-Ya Miao
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Yan-Xia Wang
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Jiang Zhu
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Fei-Cheng Yang
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Hui-Min Lu
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, China
- Biobank of Institute of Pathology, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Ze-Xuan Yan
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Fang-Lin Chen
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, China
- Institute of Cancer, Xinqiao Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Yu Shi
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Yi-Fang Ping
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - You-Hong Cui
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Xia Zhang
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Xindong Liu
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Xiao-Hong Yao
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Sheng-Qing Lv
- Department of Neurosurgery, Xinqiao Hospital, Army Medical University (Third Military Medical University), Chongqing, China.
| | - Xiu-Wu Bian
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, China.
| | - Yan Wang
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, China.
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13
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He ZC, Liu Q, Yang KD, Chen C, Zhang XN, Wang WY, Zeng H, Wang B, Liu YQ, Luo M, Li L, Niu Q, Lu HM, Luo T, Yao XH, Guo HT, Ji JL, Cao MF, Shi Y, Ping YF, Bian XW. HOXA5 is amplified in glioblastoma stem cells and promotes tumor progression by transcriptionally activating PTPRZ1. Cancer Lett 2022; 533:215605. [DOI: 10.1016/j.canlet.2022.215605] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 02/10/2022] [Accepted: 02/21/2022] [Indexed: 01/23/2023]
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14
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Lv SQ, Fu Z, Yang L, Li QR, Zhu J, Gai QJ, Mao M, He J, Qin Y, Yao XX, Lan X, Wang YX, Lu HM, Xiang Y, Zhang ZX, Huang GH, Yang W, Kang P, Sun Z, Shi Y, Yao XH, Bian XW, Wang Y. Comprehensive omics analyses profile genesets related with tumor heterogeneity of multifocal glioblastomas and reveal LIF/CCL2 as biomarkers for mesenchymal subtype. Theranostics 2022; 12:459-473. [PMID: 34987659 PMCID: PMC8690928 DOI: 10.7150/thno.65739] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Accepted: 10/27/2021] [Indexed: 01/22/2023] Open
Abstract
Rationale: Around 10%-20% patients with glioblastoma (GBM) are diagnosed with more than one tumor lesions or multifocal GBM (mGBM). However, the understanding on genetic, DNA methylomic, and transcriptomic characteristics of mGBM is still limited. Methods: In this study, we collected nine tumor foci from three mGBM patients followed by whole genome sequencing, whole genome bisulfite sequencing, RNA sequencing, and immunohistochemistry. The data were further examined using public GBM databases and GBM cell line. Results: Analysis on genetic data confirmed common features of GBM, including gain of chr.7 and loss of chr.10, loss of critical tumor suppressors, high frequency of PDGFA and EGFR amplification. Through profiling DNA methylome of individual tumor foci, we found that promoter methylation status of genes involved in detection of chemical stimulus, immune response, and Hippo/YAP1 pathway was significantly changed in mGBM. Although both CNV and promoter methylation alteration were involved in heterogeneity of different tumor foci from same patients, more CNV events than promoter hypomethylation events were shared by different tumor foci, implying CNV were relatively earlier than promoter methylation alteration during evolution of different tumor foci from same mGBM. Moreover, different tumor foci from same mGBM assumed different molecular subtypes and mesenchymal subtype was prevalent in mGBM, which might explain the worse prognosis of mGBM than single GBM. Interestingly, we noticed that LIF and CCL2 was tightly correlated with mesenchymal subtype tumor focus in mGBM and predicted poor survival of GBM patients. Treatment with LIF and CCL2 produced mesenchymal-like transcriptome in GBM cells. Conclusions: Together, our work herein comprehensively profiled multi-omics features of mGBM and emphasized that components of extracellular microenvironment, such as LIF and CCL2, contributed to the evolution and prognosis of tumor foci in mGBM patients.
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15
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Yang DJ, Li M, Lu HM. Comment on: Acute pancreatitis in pregnancy: meta-analysis of maternal and foetal outcomes. Br J Surg 2021; 109:e34. [PMID: 34734224 DOI: 10.1093/bjs/znab378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2021] [Accepted: 10/05/2021] [Indexed: 02/05/2023]
Affiliation(s)
- Du-Jiang Yang
- Department of Gastrointestinal Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan Province, China
| | - Mao Li
- Department of Pancreatic Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan Province, China
| | - Hui-Min Lu
- Department of Pancreatic Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan Province, China
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16
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Yang DJ, Li M, Yue C, Hu WM, Lu HM. Development and validation of a prediction model for deep vein thrombosis in older non-mild acute pancreatitis patients. World J Gastrointest Surg 2021. [DOI: 10.4240/wjgs.v13.i10.1257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
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17
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Yang DJ, Li M, Yue C, Hu WM, Lu HM. Development and validation of a prediction model for deep vein thrombosis in older non-mild acute pancreatitis patients. World J Gastrointest Surg 2021; 13:1258-1266. [PMID: 34754393 PMCID: PMC8554725 DOI: 10.4240/wjgs.v13.i10.1258] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 07/01/2021] [Accepted: 09/19/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Deep vein thrombosis (DVT) may cause pulmonary embolus, leading to late deaths. The systemic inflammatory and hypercoagulable state of moderate and severe acute pancreatitis (non-mild acute pancreatitis, NMAP) patients may contribute to the development of venous thromboembolism. Accurate prediction of DVT is conducive to clinical decisions.
AIM To develop and validate a potential new prediction nomogram model for the occurrence of DVT in NMAP.
METHODS NMAP patient admission between 2013.1.1 and 2018.12.31 at the West China Hospital of Sichuan University was collected. A total of 220 patients formed the training set for nomogram development, and a validation set was constructed using bootstrapping with 100 resamplings. Univariate and multivariate logistic regression analyses were used to estimate independent risk factors associated with DVT. The independent risk factors were included in the nomogram. The accuracy and utility of the nomogram were evaluated by calibration curve and decision curve analysis, respectively.
RESULTS A total of 220 NMAP patients over 60 years old were enrolled for this analysis. DVT was detected in 80 (36.4%) patients. The final nomogram included age, sex, surgery times, D-dimer, neutrophils, any organ failure, blood culture, and classification. This model achieved good concordance indexes of 0.827 (95%CI: 0.769-0.885) and 0.803 (95%CI: 0.743-0.860) in the training and validation sets, respectively.
CONCLUSION We developed and validated a prediction nomogram model for DVT in older patients with NMAP. This may help guide doctors in making sound decisions regarding the administration of DVT prophylaxis.
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Affiliation(s)
- Du-Jiang Yang
- Department of Gastrointestinal Surgery, West China Hospital, Sichuan University, Chengdu 610041, Sichuan Province, China
| | - Mao Li
- Department of Pancreatic Surgery, West China Hospital, Sichuan University, Chengdu 610041, Sichuan Province, China
| | - Chao Yue
- Department of Pancreatic Surgery, West China Hospital, Sichuan University, Chengdu 610041, Sichuan Province, China
| | - Wei-Ming Hu
- Department of Pancreatic Surgery, West China Hospital, Sichuan University, Chengdu 610041, Sichuan Province, China
| | - Hui-Min Lu
- Department of Pancreatic Surgery, West China Hospital, Sichuan University, Chengdu 610041, Sichuan Province, China
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18
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Zhu WL, Cheng HJ, Yang LB, Lu HM, A KZ, Zhao Q, Xu SF, Wang WB. [A model analysis on the knowledge-attitude-practice of children guardians in Jiangxi, Shanghai and Qinghai]. Zhonghua Liu Xing Bing Xue Za Zhi 2021; 42:309-315. [PMID: 33626621 DOI: 10.3760/cma.j.cn112338-20200321-00411] [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] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Objective: To understand the knowledge attitude and practice (KAP) on vaccination among children's parents in Jiangxi, Shanghai, and Qinghai and explore the factors influencing KAP. Methods: The study selected two counties/districts in Jiangxi, Shanghai, and Qinghai, respectively, by stratified sampling and used a unified questionnaire to investigate the parental KAP of vaccination. A structural equation model (SEM) was used to explore factors influencing parental KAP, as well as the relationship between knowledge and behavior. Results: Of the 760 valid questionnaires, the knowledge of vaccination among children's parents was better, and the vaccination knowledge of parents in Qinghai and Shanghai were slightly better than those in Jiangxi. Parents mainly obtained vaccination knowledge through medical staff and vaccination manuals. The fitting degree of SEM was relatively good; the root mean square error of approximation of the model is 0.033. The higher the parents' education level, the better their knowledge of vaccination (β̂=0.082). Parental vaccination knowledge could influence whether the vaccinated children stay for half an hour in the clinics (β̂=0.541). It could also impact whether parents giving up vaccinating their children in the face of media reports about the adverse effects of vaccinations (β̂=0.515). Conclusions: The knowledge of vaccination among the parents in Jiangxi, Shanghai, and Qinghai was quite good. Moreover, we should pay more attention to the mass media programs and vaccination knowledge among parents with low or middle education backgrounds. Vaccination knowledge can be disseminated through medical staff, vaccination manuals, or mobile applications.
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Affiliation(s)
- W L Zhu
- Department of Epidemiology, School of Public Health, Fudan University, Key Laboratory of Public Health Safety, Ministry of Education, Shanghai 200032, China
| | - H J Cheng
- Jiangxi Provincial Center for Disease Control and Prevention, Nanchang 330029, China
| | - L B Yang
- Pudong Center for Disease Control and Prevention, Shanghai 200136, China
| | - H M Lu
- Songjiang District Center for Disease Control and Prevention, Shanghai 201620, China
| | - K Z A
- Qing Hai Center for Disease Prevention and Control, Xining 810007, China
| | - Q Zhao
- Department of Epidemiology, School of Public Health, Fudan University, Key Laboratory of Public Health Safety, Ministry of Education, Shanghai 200032, China
| | - S F Xu
- Department of Epidemiology, School of Public Health, Fudan University, Key Laboratory of Public Health Safety, Ministry of Education, Shanghai 200032, China
| | - W B Wang
- Department of Epidemiology, School of Public Health, Fudan University, Key Laboratory of Public Health Safety, Ministry of Education, Shanghai 200032, China
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19
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Tan KB, Lu HM, Zuo WC. Energy conservation at an optical temporal boundary. Opt Lett 2020; 45:6366-6369. [PMID: 33258813 DOI: 10.1364/ol.405310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Accepted: 10/14/2020] [Indexed: 06/12/2023]
Abstract
The temporal boundary appears as a novel phenomenon in a wide range of optical devices and systems, such as the photonic crystal, metamaterials, optical microcavity, and modulator, with a dynamic medium whose refractive index changes across the boundary. However, the validation of electromagnetic energy conservation was considered in violation for the optical temporal boundary traditionally. Here a new energy space-time scheme is proposed for an optical pulse in a medium with the temporal boundary. From the Poynting theory, the electromagnetic energy is investigated based on a one-dimensional model under the assumption of impedance matching. Furthermore, the results demonstrate that a more general conservation of energy is validated in a time domain for the ideal scenario. A new invariant quantity of spatial energy in the optical medium is further obtained. The numerical results are in agreement with the theory of the temporal boundary. The conservative process of energy transportation across the optical temporal boundary is clarified and confirmed.
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20
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Zhang X, Chen L, Dang WQ, Cao MF, Xiao JF, Lv SQ, Jiang WJ, Yao XH, Lu HM, Miao JY, Wang Y, Yu SC, Ping YF, Liu XD, Cui YH, Zhang X, Bian XW. CCL8 secreted by tumor-associated macrophages promotes invasion and stemness of glioblastoma cells via ERK1/2 signaling. J Transl Med 2020; 100:619-629. [PMID: 31748682 DOI: 10.1038/s41374-019-0345-3] [Citation(s) in RCA: 78] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Revised: 09/27/2019] [Accepted: 10/15/2019] [Indexed: 12/13/2022] Open
Abstract
Tumor-associated macrophages (TAMs) constitute a large population of glioblastoma and facilitate tumor growth and invasion of tumor cells, but the underlying mechanism remains undefined. In this study, we demonstrate that chemokine (C-C motif) ligand 8 (CCL8) is highly expressed by TAMs and contributes to pseudopodia formation by GBM cells. The presence of CCL8 in the glioma microenvironment promotes progression of tumor cells. Moreover, CCL8 induces invasion and stem-like traits of GBM cells, and CCR1 and CCR5 are the main receptors that mediate CCL8-induced biological behavior. Finally, CCL8 dramatically activates ERK1/2 phosphorylation in GBM cells, and blocking TAM-secreted CCL8 by neutralized antibody significantly decreases invasion of glioma cells. Taken together, our data reveal that CCL8 is a TAM-associated factor to mediate invasion and stemness of GBM, and targeting CCL8 may provide an insight strategy for GBM treatment.
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Affiliation(s)
- Xiang Zhang
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China.,Key Laboratory of Tumor Immunopathology of Ministry of Education of China, Third Military Medical University (Army Medical University), Chongqing, 400038, China
| | - Lu Chen
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China.,Key Laboratory of Tumor Immunopathology of Ministry of Education of China, Third Military Medical University (Army Medical University), Chongqing, 400038, China
| | - Wei-Qi Dang
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China.,Key Laboratory of Tumor Immunopathology of Ministry of Education of China, Third Military Medical University (Army Medical University), Chongqing, 400038, China
| | - Mian-Fu Cao
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China.,Key Laboratory of Tumor Immunopathology of Ministry of Education of China, Third Military Medical University (Army Medical University), Chongqing, 400038, China
| | - Jing-Fang Xiao
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China.,Key Laboratory of Tumor Immunopathology of Ministry of Education of China, Third Military Medical University (Army Medical University), Chongqing, 400038, China
| | - Sheng-Qing Lv
- Department of Neurosurgery, Xinqiao Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China
| | - Wen-Jie Jiang
- Department of Neurosurgery, Xinqiao Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China
| | - Xiao-Hong Yao
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China.,Key Laboratory of Tumor Immunopathology of Ministry of Education of China, Third Military Medical University (Army Medical University), Chongqing, 400038, China
| | - Hui-Min Lu
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China.,Key Laboratory of Tumor Immunopathology of Ministry of Education of China, Third Military Medical University (Army Medical University), Chongqing, 400038, China
| | - Jing-Ya Miao
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China.,Key Laboratory of Tumor Immunopathology of Ministry of Education of China, Third Military Medical University (Army Medical University), Chongqing, 400038, China
| | - Yan Wang
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China.,Key Laboratory of Tumor Immunopathology of Ministry of Education of China, Third Military Medical University (Army Medical University), Chongqing, 400038, China
| | - Shi-Cang Yu
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China.,Key Laboratory of Tumor Immunopathology of Ministry of Education of China, Third Military Medical University (Army Medical University), Chongqing, 400038, China
| | - Yi-Fang Ping
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China.,Key Laboratory of Tumor Immunopathology of Ministry of Education of China, Third Military Medical University (Army Medical University), Chongqing, 400038, China
| | - Xin-Dong Liu
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China.,Key Laboratory of Tumor Immunopathology of Ministry of Education of China, Third Military Medical University (Army Medical University), Chongqing, 400038, China
| | - You-Hong Cui
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China.,Key Laboratory of Tumor Immunopathology of Ministry of Education of China, Third Military Medical University (Army Medical University), Chongqing, 400038, China
| | - Xia Zhang
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China. .,Key Laboratory of Tumor Immunopathology of Ministry of Education of China, Third Military Medical University (Army Medical University), Chongqing, 400038, China.
| | - Xiu-Wu Bian
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China. .,Key Laboratory of Tumor Immunopathology of Ministry of Education of China, Third Military Medical University (Army Medical University), Chongqing, 400038, China.
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Zhu Q, Hu TJ, Shen JW, Shen JH, Chen WH, Gu SK, Lu HM. [A study on measles and rubella antibody level in 319 pairs of mothers and infants in Songjiang District of Shanghai]. Zhonghua Yu Fang Yi Xue Za Zhi 2019; 53:388-393. [PMID: 30982273 DOI: 10.3760/cma.j.issn.0253-9624.2019.04.011] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore serum levels of measles and rubella IgG antibodies among mothers and infants. Methods: According to the inclusion and exclusion criteria, we selected 319 puerperae and their infants in maternal hospitals of Songjiang district November 2016 to February 2017, venous blood were collected and serum measles and rubella IgG antibodies were measured using ELISA. To study the correlation between the level of measles and rubella antibodies in infants and mothers' by using the Spearman's correlation analysis. Results: The age at delivery was (29.71±4.25) years old; and the gestational age at delivery was (39.06±1.30) weeks. The positive rate and protection rate of measles antibody in puerperae were 82.5% (243/319) and 43.3% (135/319), the GMC [M (QR)] was 655.74 (251.21-1 299.02) mIU/ml. The positive rate of rubella antibody in puerperae was 61.1% (195/319), the GMC [M (QR)] was 31.34 (11.65-73.61) IU/ml. The positive rate and protection rate of measles antibody in infants were 84.1% (270/321) and 46.1% (148/321), the GMC [M (QR)] was 665.07 (279.63-1 544.07) mIU/ml. The positive rate of rubella antibody in infants was 69.5% (223/321), the GMC [M (QR)] was 40.30 (16.12-98.48) IU/ml. There was statistical difference in measles (Z=-14.64, P<0.001) and rubella (Z=-8.66, P<0.001) antibody levels between mothers and infants. There was positive correlation in measles (r=0.76, P<0.001) and rubella (r=0.86, P<0.001) antibody level between mothers and infants. Conclusion: The maternal antibody of measles and rubella had a concentration effect. The level of measles and rubella antibodies in the infants was higher than that in the mothers' and increased with the increase of the level of measles and rubella antibodies in the mothers.
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Affiliation(s)
- Q Zhu
- Immunoprophylaxis Department, Songjiang District Center for Disease Control and Prevention, Shanghai 201620, China
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Wen XJ, Shen CH, Fei ZH, Niu CG, Lu Q, Guo J, Lu HM. Fabrication of a zinc tungstate-based a p-n heterojunction photocatalysts towards refractory pollutants degradation under visible light irradiation. Colloids Surf A Physicochem Eng Asp 2019. [DOI: 10.1016/j.colsurfa.2019.04.026] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Wang H, Fu L, Lu HM, Kang XN, Wu JJ, Xu FJ, Yu TJ. Anisotropic dependence of light extraction behavior on propagation path in AlGaN-based deep-ultraviolet light-emitting diodes. Opt Express 2019; 27:A436-A444. [PMID: 31052894 DOI: 10.1364/oe.27.00a436] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Accepted: 03/05/2019] [Indexed: 06/09/2023]
Abstract
The anisotropic extraction dependence of polarized light on propagation path in AlGaN-based deep-ultraviolet (DUV) light-emitting diodes (LEDs) is investigated by simulations and photoluminescence (PL) measurements. Theoretical calculations based on k⋅p approximation and Monte Carol ray tracing indicate that there are two kinds of polarized sources with different angular distributions in ~280 nm AlGaN-based LEDs, s-polarized (spherical-shaped) and p-polarized (dumbbell-shaped) sources, which have different extraction behaviors. It is found that the total light extraction intensities are improved with decreasing the propagation path, and the lateral surface extraction gradually becomes dominant. Moreover, the extraction intensity of s-polarized light improves more than that of p-polarized light when the propagation path decreases, leading to a greater polarization degree. Polarization-resolved PL measurements show that the polarization degree of extracted light from lateral facet of the AlGaN multiple quantum well sample can be enhanced from 1% to 17% as the average propagation path reduces by 0.6 mm, which is consistent with the simulation results of the anisotropic dependence of light extraction on propagation path. Our results are significant for understanding and modulating the anisotropic extraction behavior of polarized light to realize high efficiency AlGaN-based DUV LEDs.
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Yang DJ, Xiong JJ, Lu HM, Wei Y, Zhang L, Lu S, Hu WM. The oncological safety in minimally invasive versus open distal pancreatectomy for pancreatic ductal adenocarcinoma: a systematic review and meta-analysis. Sci Rep 2019; 9:1159. [PMID: 30718559 PMCID: PMC6362067 DOI: 10.1038/s41598-018-37617-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Accepted: 12/11/2018] [Indexed: 02/08/2023] Open
Abstract
The safety of minimally invasive distal pancreatectomy (MIDP) and open distal pancreatectomy (ODP) regarding oncological outcomes of pancreatic ductal adenocarcinoma (PDAC) remains inconclusive. Therefore, the aim of this study was to examine the oncological safety of MIDP and ODP for PDAC. Major databases including PubMed, Embase, Science Citation Index Expanded, and the Cochrane Library were searched for studies comparing outcomes in patients undergoing MIDP and ODP for PDAC from January 1994 to August 2018. In total, 11 retrospective comparative studies with 4829 patients (MIDP: 1076, ODP: 3753) were included. The primary outcome was long-term survival, including 3-year overall survival (OS) and 5-year OS. The 3-year OS (hazard ratio (HR): 1.03, 95% confidence interval (CI): 0.89, 1.21; P = 0.66) and 5-year OS (HR: 0.91, 95% CI: 0.65, 1.28; P = 0.59) showed no significant differences between the two groups. Furthermore, the positive surgical margin rate (weighted mean difference (WMD): 0.71, 95% CI: 0.56, 0.89, P = 0.003) was lower in the MIDP group. However, patients in the MIDP group had less intraoperative blood loss (WMD: -250.03, 95% CI: -359.68, -140.39; P < 0.00001), a shorter hospital stay (WMD: -2.76, 95% CI: -3.73, -1.78; P < 0.00001) and lower morbidity (OR: 0.57, 95% CI: 0.46, 0.71; P < 0.00001) and mortality (OR: 0.50, 95% CI: 0.31, 0.81, P = 0.005) than patients in the ODP group. The limited evidence suggested that MIDP might be safer with regard to oncological outcomes in PDAC patients. Therefore, future high-quality studies are needed to examine the oncological safety of MIDP.
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Affiliation(s)
- Du-Jiang Yang
- Department of Pancreatic Surgery, West China Hospital, Sichuan University, No. 37, Guoxue Alley, Chengdu, 610041, Sichuan Province, China
| | - Jun-Jie Xiong
- Department of Pancreatic Surgery, West China Hospital, Sichuan University, No. 37, Guoxue Alley, Chengdu, 610041, Sichuan Province, China
| | - Hui-Min Lu
- Department of Pancreatic Surgery, West China Hospital, Sichuan University, No. 37, Guoxue Alley, Chengdu, 610041, Sichuan Province, China
| | - Yi Wei
- Department of Transportation Center, West China Hospital, Sichuan University, No. 37, Guoxue Alley, Chengdu, 610041, Sichuan Province, China
| | - Ling Zhang
- Department of Pancreatic Surgery, West China Hospital, Sichuan University, No. 37, Guoxue Alley, Chengdu, 610041, Sichuan Province, China
| | - Shan Lu
- Department of Pancreatic Surgery, West China Hospital, Sichuan University, No. 37, Guoxue Alley, Chengdu, 610041, Sichuan Province, China
| | - Wei-Ming Hu
- Department of Pancreatic Surgery, West China Hospital, Sichuan University, No. 37, Guoxue Alley, Chengdu, 610041, Sichuan Province, China.
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Song K, Yuan Y, Lin Y, Wang YX, Zhou J, Gai QJ, Zhang L, Mao M, Yao XX, Qin Y, Lu HM, Zhang X, Cui YH, Bian XW, Zhang X, Wang Y. ERBB3, IGF1R, and TGFBR2 expression correlate with PDGFR expression in glioblastoma and participate in PDGFR inhibitor resistance of glioblastoma cells. Am J Cancer Res 2018; 8:792-809. [PMID: 29888103 PMCID: PMC5992513] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Accepted: 04/09/2018] [Indexed: 06/08/2023] Open
Abstract
Glioma, the most prevalent malignancy in brain, is classified into four grades (I, II, III, and IV), and grade IV glioma is also known as glioblastoma multiforme (GBM). Aberrant activation of receptor tyrosine kinases (RTKs), including platelet-derived growth factor receptor (PDGFR), are frequently observed in glioma. Accumulating evidence suggests that PDGFR plays critical roles during glioma development and progression and is a promising drug target for GBM therapy. However, PDGFR inhibitor (PDGFRi) has failed in clinical trials, at least partially, due to the activation of other RTKs, which compensates for PDGFR inhibition and renders tumor cells resistance to PDGFRi. Therefore, identifying the RTKs responsible for PDGFRi resistance might provide new therapeutic targets to synergetically enhance the efficacy of PDGFRi. In this study, we analyzed the TCGA glioma database and found that the mRNA expressions of three RTKs, i.e. ERBB3, IGF1R, and TGFBR2, were positively correlated with that of PDGFR. Co-immunoprecipitation assay indicated novel interactions between the three RTKs and PDGFR in GBM cells. Moreover, concurrent expression of PDGFR with ERBB3, IGF1R, or TGFBR2 in GBM cells attenuated the toxicity of PDGFRi and maintained the activation of PDGFR downstream targets under the existence of PDGFRi. Thus, ERBB3, IGF1R, and TGFBR2 might participate in PDGFRi resistance of GBM cells. Consistent with this notion, combination of PDGFRi with inhibitor targeting either ERBB3 or IGF1R more potently suppressed the growth of GBM cells than each inhibitor alone. The positive correlations of PDGFR with ERBB3, IGF1R, and TGFBR2 were further confirmed in 66 GBM patient samples. Intriguingly, survival analysis showed that ERBB3 predicted poor prognosis in GBM patients with high PDGFRA expression. Altogether, our work herein suggested that ERBB3, IGF1R, and TGFBR2 were responsible for PDGFRi resistance and revealed that ERBB3 acted as potential prognostic marker and therapeutic target for GBM with high PDGFRA expression.
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Affiliation(s)
- Kang Song
- Department of Pathology, Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical UniversityChongqing 400038, China
- Key Laboratory of Tumor Immunology and Pathology of Ministry of EducationChongqing 400038, China
| | - Ye Yuan
- Department of Pathology, Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical UniversityChongqing 400038, China
- Key Laboratory of Tumor Immunology and Pathology of Ministry of EducationChongqing 400038, China
| | - Yong Lin
- Department of Pathology, Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical UniversityChongqing 400038, China
- Key Laboratory of Tumor Immunology and Pathology of Ministry of EducationChongqing 400038, China
| | - Yan-Xia Wang
- Department of Pathology, Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical UniversityChongqing 400038, China
- Key Laboratory of Tumor Immunology and Pathology of Ministry of EducationChongqing 400038, China
| | - Jie Zhou
- Department of Pathology, Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical UniversityChongqing 400038, China
- Key Laboratory of Tumor Immunology and Pathology of Ministry of EducationChongqing 400038, China
| | - Qu-Jing Gai
- Department of Pathology, Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical UniversityChongqing 400038, China
- Key Laboratory of Tumor Immunology and Pathology of Ministry of EducationChongqing 400038, China
| | - Lin Zhang
- Department of Pathology, Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical UniversityChongqing 400038, China
- Key Laboratory of Tumor Immunology and Pathology of Ministry of EducationChongqing 400038, China
| | - Min Mao
- Department of Pathology, Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical UniversityChongqing 400038, China
- Key Laboratory of Tumor Immunology and Pathology of Ministry of EducationChongqing 400038, China
| | - Xiao-Xue Yao
- Department of Pathology, Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical UniversityChongqing 400038, China
- Key Laboratory of Tumor Immunology and Pathology of Ministry of EducationChongqing 400038, China
| | - Yan Qin
- Department of Pathology, Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical UniversityChongqing 400038, China
- Key Laboratory of Tumor Immunology and Pathology of Ministry of EducationChongqing 400038, China
| | - Hui-Min Lu
- Department of Pathology, Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical UniversityChongqing 400038, China
- Key Laboratory of Tumor Immunology and Pathology of Ministry of EducationChongqing 400038, China
| | - Xiang Zhang
- Department of Pathology, Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical UniversityChongqing 400038, China
- Key Laboratory of Tumor Immunology and Pathology of Ministry of EducationChongqing 400038, China
| | - You-Hong Cui
- Department of Pathology, Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical UniversityChongqing 400038, China
- Key Laboratory of Tumor Immunology and Pathology of Ministry of EducationChongqing 400038, China
| | - Xiu-Wu Bian
- Department of Pathology, Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical UniversityChongqing 400038, China
- Key Laboratory of Tumor Immunology and Pathology of Ministry of EducationChongqing 400038, China
| | - Xia Zhang
- Department of Pathology, Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical UniversityChongqing 400038, China
- Key Laboratory of Tumor Immunology and Pathology of Ministry of EducationChongqing 400038, China
| | - Yan Wang
- Department of Pathology, Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical UniversityChongqing 400038, China
- Key Laboratory of Tumor Immunology and Pathology of Ministry of EducationChongqing 400038, China
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Yang DJ, Lu HM, Guo Q, Lu S, Zhang L, Hu WM. Timing of Laparoscopic Cholecystectomy After Mild Biliary Pancreatitis: A Systematic Review and Meta-Analysis. J Laparoendosc Adv Surg Tech A 2017; 28:379-388. [PMID: 29271689 DOI: 10.1089/lap.2017.0527] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM To compare the safety of cholecystectomy in early laparoscopic cholecystectomy (ELC) and delayed laparoscopic cholecystectomy (DLC). METHODS We systematically searched PubMed, EMBASE, and Cochrane Library for studies that were published from January 1992 to March 2017. We included studies on patients with mild biliary pancreatitis and that reported the timing of cholecystectomy and the number of complications, readmissions, and conversion to open cholecystectomy. Moreover, we assessed the quality and bias risks of the included studies. RESULTS After screening 4651 studies, we included 3 randomized clinical trials and 10 retrospective studies. The included studies described 2291 patients, of whom 1141 (49.8%) underwent ELC and 1150 (50.2%) underwent DLC. The reported rate of complications for ELC (6.8%) was lower than that for DLC (13.45%). The reported rate of readmission for ELC was lower than that for DLC. The length of hospital stay was longer with DLC than with ELC. ELC and DLC did not have significantly different rates of conversion to open cholecystectomy and duration of surgery. CONCLUSION This meta-analysis provides evidence that ELC is better than DLC in many aspects for acute mild pancreatitis patients undergoing laparoscopic cholecystectomy. ELC associated with few complications and readmissions, as well as a short length of hospital stay.
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Affiliation(s)
- Du-Jiang Yang
- 1 Department of Pancreatic Surgery, West China Hospital, Sichuan University , Chengdu, China
| | - Hui-Min Lu
- 1 Department of Pancreatic Surgery, West China Hospital, Sichuan University , Chengdu, China
| | - Qiang Guo
- 2 Department of Vascular Surgery, West China Hospital, Sichuan University , Chengdu, China
| | - Shan Lu
- 1 Department of Pancreatic Surgery, West China Hospital, Sichuan University , Chengdu, China
| | - Ling Zhang
- 1 Department of Pancreatic Surgery, West China Hospital, Sichuan University , Chengdu, China
| | - Wei-Ming Hu
- 1 Department of Pancreatic Surgery, West China Hospital, Sichuan University , Chengdu, China
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Tian YF, Zhang JH, Lu HM, Liu YY, Zhou YP, Lu Q, Buren R, Zhang YH. [The combined effects of family history of cardiovascular disease and overweight on ischemic stroke incidence among the Mongolian population]. Zhonghua Yu Fang Yi Xue Za Zhi 2017; 50:794-798. [PMID: 27655599 DOI: 10.3760/cma.j.issn.0253-9624.2016.09.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the cumulative effect of family history of cardiovascular disease(CVD)and overweight on ischemic stroke events in the Mongolian population. Methods: Study participants were recruited from 32 villages from May 2002 to August 2012 in Kezuohou Banner(county)and Naiman Banner in Inner Mongolia, China. Among 3 457 Mongolian people aged ≥20 years old living in these villages, 2 589 were selected to participate in this study. None of the participants had chronic kidney disease, malignant tumor, thyroid disease or adrenalopathy, or acute infectious disease. The 2 589 participants were followed for a mean of 9.2 years. Six participants were lost to follow up, resulting in a follow-up rate of 99.8%. Information collected included demographic characteristics, lifestyle risk factors, alcohol consumption, cigarette smoking, history of disease, family history of CVD, and physical examination. Ischemic stroke incidence information was collected during follow-up. All participants were categorized into four subgroups according to family history of CVD and overweight status. Cox proportional hazards models were used to estimate the hazard ratios(HR)and 95% CI of ischemic stroke events among subgroups, compared with the subgroup with no family history of CVD and body mass index(BMI)<24 kg/m2(the reference group). Results: Among 2 589 participants, 76 ischemic stroke events occurred after follow-up, and 8 were excluded because of lack of key data. Finally, 2 581 participants were included in the analysis, and the incidence density was 323/100 000 person-years. The cumulative incidence rates of ischemic stroke were 2.48%, 1.86%, 6.67% and 9.00% in the no family history of CVD and BMI <24 kg/m2, no family history of CVD and BMI ≥24 kg/m2, family history of CVD and BMI <24 kg/m2 and family history of CVD and BMI ≥ 24 kg/m2 subgroups, respectively. Using the Cox proportional hazards model, after further adjustment for age, gender, smoking, drinking, FPG, hypertension, total cholesterol, triglycerides, and heart rate, the risk of ischemic stroke in the subgroup with a family history of CVD and BMI ≥24 kg/m2 was higher than the reference group(HR: 2.61, 95% CI: 1.16-5.87). However, the risk of ischemic stroke in other two groups was not statistically significant compared with the reference group. The HR(95% CI)values in the no family history of CVD and BMI ≥24 kg/m2and family history of CVD and BMI <24 kg/m2 subgroups were 1.18(0.5- 2.39)and 1.27(0.67- 2.42), respectively. Conclusion: In the Mongolian population, a family history of CVD and coexistent overweight may increase the risk of ischemic stroke events, suggesting that in people with family history of cardiovascular disease, weight control is conducive to the prevention of ischemic stroke.
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Affiliation(s)
- Y F Tian
- Department of Epidemiology, School of Public Health, Medical College of Soochow University; Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Suzhou 215123, China
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Hoesl M, Deepak S, Moteabbed M, Jassens G, Orban J, Park YK, Parodi K, Bentefour EH, Lu HM. Clinical commissioning of an in vivo range verification system for prostate cancer treatment with anterior and anterior oblique proton beams. Phys Med Biol 2016; 61:3049-62. [PMID: 27002470 DOI: 10.1088/0031-9155/61/8/3049] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The purpose of this work is the clinical commissioning of a recently developed in vivo range verification system (IRVS) for treatment of prostate cancer by anterior and anterior oblique proton beams. The IRVS is designed to perform a complete workflow for pre-treatment range verification and adjustment. It contains specifically designed dosimetry and electronic hardware and a specific software for workflow control with database connection to the treatment and imaging systems. An essential part of the IRVS system is an array of Si-diode detectors, designed to be mounted to the endorectal water balloon routinely used for prostate immobilization. The diodes can measure dose rate as function of time from which the water equivalent path length (WEPL) and the dose received are extracted. The former is used for pre-treatment beam range verification and correction, if necessary, while the latter is to monitor the dose delivered to patient rectum during the treatment and serves as an additional verification. The entire IRVS workflow was tested for anterior and 30 degree inclined proton beam in both solid water and anthropomorphic pelvic phantoms, with the measured WEPL and rectal doses compared to the treatment plan. Gafchromic films were also used for measurement of the rectal dose and compared to IRVS results. The WEPL measurement accuracy was in the order of 1 mm and after beam range correction, the dose received by the rectal wall were 1.6% and 0.4% from treatment planning, respectively, for the anterior and anterior oblique field. We believe the implementation of IRVS would make the treatment of prostate with anterior proton beams more accurate and reliable.
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Affiliation(s)
- M Hoesl
- Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA. Faculty of Physics, Ludwig Maximilians University Munich, Munich, Germany
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Wu HY, Peng YS, Chen HY, Tsai WC, Yang JY, Hsu SP, Pai MF, Lu HM, Chiang JF, Ko MJ, Wen SY, Chiu HC. A Comparison of Uremic Pruritus in Patients Receiving Peritoneal Dialysis and Hemodialysis. Medicine (Baltimore) 2016; 95:e2935. [PMID: 26945400 PMCID: PMC4782884 DOI: 10.1097/md.0000000000002935] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Uremic pruritus is common and bothersome in patients receiving either peritoneal dialysis (PD) or hemodialysis (HD). To date, the preferred dialysis modality regarding the alleviation of uremic pruritus remains controversial. We conducted this cross-sectional study to compare the prevalence, intensity, and characteristics of uremic pruritus between PD and HD patients. Patients receiving maintenance dialysis at a referral medical center in Taiwan were recruited. Dialysis modality, patient demographic, clinical characteristics, and laboratory data were recorded. The intensity of uremic pruritus was measured using visual analogue scale (VAS) scores. Multivariate linear regression analysis was conducted to compare the severity of uremic pruritus between PD and HD patients. Generalized additive models were applied to detect nonlinear effects between pruritus intensity and continuous covariates. A total of 380 patients completed this study, with a mean age of 60.3 years and 49.2% being female. Uremic pruritus was presented in 24 (28.6%) of the 84 PD patients and 113 (38.2%) of the 296 HD patients (P = .12). The VAS score of pruritus intensity was significantly lower among the PD patients than the HD patients (1.32 ± 2.46 vs 2.26 ± 3.30, P = .04). Multivariate linear regression analysis showed that PD was an independent predictor for lower VAS scores of pruritus intensity compared with HD (β-value -0.88, 95% confidence interval -1.62 to -0.13). The use of active vitamin D was also an independent predictor for a lower intensity of uremic pruritus, whereas hyperphosphatemia and higher serum levels of triglyceride and aspartate transaminase were significantly associated with higher pruritus intensity. There was a trend toward a less affected body surface area of uremic pruritus in the PD patients than in the HD patients, but the difference did not reach statistical significance (P = .13).In conclusion, the severity of uremic pruritus was lower among PD patients than HD patients, and PD may provide better alleviation of pruritus symptoms. The result provides a valuable reference for clinicians and patients when choosing a dialysis modality.
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Affiliation(s)
- Hon-Yen Wu
- From the Department of Internal Medicine (H-YW, Y-SP, H-YC, W-CT, J-YY, S-PH, M-FP); Department of Nursing (H-ML, J-FC), Far Eastern Memorial Hospital, New Taipei City, Taiwan; Department of Internal Medicine (H-YW, Y-SP, H-YC, J-YY, S-PH, M-FP); Department of Dermatology (M-JK, H-CC), National Taiwan University Hospital and College of Medicine; Institute of Epidemiology and Preventive Medicine, National Taiwan University (H-YW, W-CT); and Department of Dermatology (M-JK, S-YW), Taipei City Hospital, Taipei, Taiwan
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Underwood T, Giantsoudi D, Moteabbed M, Zietman A, Efstathiou J, Paganetti H, Lu HM. TU-EF-304-05: Anterior Proton Beams for Prostate Treatments Lead to Substantial Elevations in Modeled RBE-Weighted Rectal Dose. Med Phys 2015. [DOI: 10.1118/1.4925660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Zheng W, Zhang Y, Lu HM, Li DT, Zhang ZL, Tang ZX, Shi LE. Antimicrobial activity and safety evaluation of Enterococcus faecium KQ 2.6 isolated from peacock feces. BMC Biotechnol 2015; 15:30. [PMID: 25962418 PMCID: PMC4427955 DOI: 10.1186/s12896-015-0151-y] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2015] [Accepted: 04/22/2015] [Indexed: 12/19/2022] Open
Abstract
Background The objective of this paper was to study antimicrobial activity and safety of Enterococcus faecium KQ 2.6 (E. faecium KQ 2.6) isolated from peacock feces. Methods Agar well diffusion method was adopted in antimicrobial activity assay. Disk diffusion test was used to determine the antibiotic resistance. The identification and virulence potential of E. faecium KQ 2.6 were investigated using PCR amplification. Results The results indicated that cell free supernatant (CFS) of the strain had the good antimicrobial activity against selected gram-positive and gram-negative bacteria. The biochemical characteristics of antimicrobial substances were investigated. The results indicated that the antimicrobial substances were still active after treatment with catalase and proteinase, respectively. Moreover, the stability of antimicrobial substances did not change after heat treatment at 40, 50, 60, 70 and 80°C for 30 min, respectively. The activity of antimicrobial substances remained stable at 4 and −20°C after long time storage. The antimicrobial activity of CFS was compared with that of the buffer with similar strength and pH. The inhibitory zone of the buffer was apparently smaller than that of CFS, which meant that the acid in CFS was not the only factor that was contributed to antibacterial activity of CFS. The antibiotic resistance and virulence potential were evaluated using disk diffusion test and PCR amplification. The results showed that E. faecium KQ 2.6 did not harbor any tested virulence genes such as gelE, esp, asa1, cylA, efaA and hyl. It was susceptible to most of tested antibiotics except for vancomycin and polymyxin B. Conclusion E. faecium KQ 2.6 may be used as bio-preservative cultures for the production of fermented foods.
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Affiliation(s)
- Wei Zheng
- College of Life and Environmental Sciences, Hangzhou Normal University, 310016, Hangzhou, Zhejiang, China.
| | - Yu Zhang
- College of Life and Environmental Sciences, Hangzhou Normal University, 310016, Hangzhou, Zhejiang, China.
| | - Hui-Min Lu
- College of Life and Environmental Sciences, Hangzhou Normal University, 310016, Hangzhou, Zhejiang, China.
| | - Dan-Ting Li
- College of Life and Environmental Sciences, Hangzhou Normal University, 310016, Hangzhou, Zhejiang, China.
| | - Zhi-Liang Zhang
- College of Life and Environmental Sciences, Hangzhou Normal University, 310016, Hangzhou, Zhejiang, China.
| | - Zhen-Xing Tang
- College of Light Industry Science and Engineering, Nanjing Forestry University, 210037, Nanjing, Jiangsu, China.
| | - Lu-E Shi
- College of Life and Environmental Sciences, Hangzhou Normal University, 310016, Hangzhou, Zhejiang, China.
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Chen YL, Chen FX, Deng CB, Xia B, Wu LP, Wu ZL, Lu HM. [Expression of CD163 in children with Epstein-Barr virus infection]. Zhongguo Dang Dai Er Ke Za Zhi 2015; 17:492-495. [PMID: 26014702] [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: 06/04/2023]
Abstract
OBJECTIVE To study the clinical significance of CD163 in the diagnosis and the evaluation of severity and prognosis of childhood hemophagocytic lymphohistiocytosis (HLH). METHODS Ninety-four children were classified into Epstein-Barr virus (EBV)-positive (n=55) and EBV-negative groups (n=39; control group). The EBV-positive group was subgrouped into infectious mononucleosis (IM; n=47) and HLH (n=8). Serum levels of soluble CD163 were measured using ELISA. Expression of CD163 on mononuclear cells was detected by flow cytometry. RESULTS The serum levels of soluble CD163 were>10 000 ng/mL in all eight HLH patients (>30 000 ng/mL in 3 cases). The mean serum levels of soluble CD163 in the HLH group were significantly higher than in the control and IM groups (P<0.05). The serum levels of soluble CD163 in EBV-positive children were positively correlated with EBV-DNA copies and serum levels of ferritin and LDH, but were negatively correlated with white blood cell count, neutrophil count, hemoglobin and platelet count. The follow-up after treatment for three HLH patients showed that serum levels of soluble CD163 were significantly reduced, but the soluble CD163 levels rebounded in one patient who was complicated by fungal pneumonia infection. CONCLUSIONS The levels of serum soluble CD163 may be related to the severity in children with HLH. The EBV-positive children with soluble CD163 levels >10 000 ng/mL should be considered the possibility of HLH.
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Affiliation(s)
- Yan-Li Chen
- Department of Pediatrics, Fifth Hospital of Guangzhou Medical College, Guangzhou 510700, China.
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Dai S, Yu TJ, Li XB, Yuan GC, Lu HM. [The electroluminescence spectra of InGan/GaN blue LEDs during aging time]. Guang Pu Xue Yu Guang Pu Fen Xi 2014; 34:327-330. [PMID: 24822394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The luminescence spectra of InGaN/GaN multiple quantum wells light-emitting diodes under low level injection current (<4 mA) during aging process was investigated for the first time. Comparing the electroluminescence (EL) spectra of LEDs before and after aging time it was found that the peak wavelength and the full width at half maximum (FWHM) decreased with stress time and the changes of EL spectrum had two different stages-drastic decrease at the early stress stage and slow decrease later showing the same trend with the output optical power of LEDs, which indicates that the effective polarization electric field of LEDs becomes weak during the aging process and the change has a clear correlation with the increase of the defects in the multiple quantum wells of LEDs. Electrical measurement revealed that junction capacitance (C(j)) under the same junction voltage (V(j) = 1.8 V) and the junction voltage (V(j)) with the same injection current 1 mA calculated by ac small-signal IV method increased along with aging time, which explicates that the carrier density under the same low injection increases as the aging time increases. Analyses indicate that the polarization field in the quantum well is more seriously screened by the increased carriers captured by defects activated during stress time, the weaker effective polarization electric field makes the tilt of the energy band smaller, the energy radiated through the band edge and the density of energy states of the band edge increase which leads to the behaviors of peak wavelength and the FWHM of InGaN/GaN multiple quantum wells LEDs under low level injection current.
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Gong S, Shen WW, Guo Q, Lu HM, Liu XB, Hu WM. Pancreatic enzymes for exocrine pancreatic insufficiency due to chronic pancreatitis or pancreatic surgery. Surgical Practice 2013. [DOI: 10.1111/1744-1633.12029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Shu Gong
- Department of Hepatobiliopancreatic Surgery; West China Hospital, Sichuan University; Chengdu; Sichuan Province; China
| | - Wen-Wu Shen
- Department of Mental Health Center; West China Hospital, Sichuan University; Chengdu; Sichuan Province; China
| | - Qiang Guo
- Department of Hepatobiliopancreatic Surgery; West China Hospital, Sichuan University; Chengdu; Sichuan Province; China
| | - Hui-Min Lu
- Department of Hepatobiliopancreatic Surgery; West China Hospital, Sichuan University; Chengdu; Sichuan Province; China
| | - Xu-Bao Liu
- Department of Hepatobiliopancreatic Surgery; West China Hospital, Sichuan University; Chengdu; Sichuan Province; China
| | - Wei-Ming Hu
- Department of Hepatobiliopancreatic Surgery; West China Hospital, Sichuan University; Chengdu; Sichuan Province; China
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Su AP, Zhang Y, Ke NW, Lu HM, Tian BL, Hu WM, Zhang ZD. Triple-layer duct-to-mucosa pancreaticojejunostomy with resection of jejunal serosa decreased pancreatic fistula after pancreaticoduodenectomy. J Surg Res 2013; 186:184-91. [PMID: 24095023 DOI: 10.1016/j.jss.2013.08.029] [Citation(s) in RCA: 16] [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] [Subscribe] [Scholar Register] [Received: 07/13/2013] [Revised: 08/24/2013] [Accepted: 08/28/2013] [Indexed: 02/05/2023]
Abstract
BACKGROUND Pancreatic fistula (PF) is one of the most common complications after pancreaticoduodenectomy (PD). We described a new method of pancreaticojejunostomy (PJ) developed by combining triple-layer duct-to-mucosa PJ with resection of jejunal serosa, which was named as modified layer-to-layer PJ (MLLPJ). The aim of the present study was to observe whether the new technique would effectively reduce the PF rate in comparison with two-layer duct-to-mucosa PJ (TLPJ). METHODS Data on 184 consecutive patients who underwent the two methods of PJ after standard PD between January 1, 2010 and January 31, 2013 were collected retrospectively from a prospective database. The primary endpoint was the PF rate. The risk factors of PF were investigated by using univariate and multivariate analyses. RESULTS A total of 88 patients received TLPJ and 96 underwent MLLPJ. Rate of PF for the entire cohort was 8.2%. There were 11 fistulas (12.5%) in the TLPJ group and four fistulas (4.2%) in the MLLPJ group (P = 0.039). Body mass index, pancreatic texture, pancreatic duct diameter, and methods of PJ anastomosis had significant effects on the formation of PF on univariate analysis. Multivariate analysis showed that pancreatic duct diameter ≤3 mm and TLPJ were the significant risk factors of PF. CONCLUSIONS MLLPJ effectively reduces the PF rate after PD in comparison with TLPJ. Results confirm increased PF rates in patients with pancreatic duct diameter ≤3 mm compared with pancreatic duct diameter >3 mm.
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Affiliation(s)
- An-Ping Su
- Department of Hepatobiliopancreatic Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan Province, China
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Cao SS, Su AP, Du XJ, Li A, Hu WM, Zhang ZD, Tian BL, Lu HM, Ke NW, He ZP. [The expressions and correlation of bcl-2 and Beclin-1 in pancreatic cancer]. Sichuan Da Xue Xue Bao Yi Xue Ban 2012; 43:156-160. [PMID: 22650021] [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: 06/01/2023]
Abstract
OBJECTIVE To investigate the expressions of Bcl-2 and Beclin-1 in pancreatic cancer and analyze the correlation between them. METHODS The pancreatic tissue samples were collected from each 6 cases of pancreatic cancer, pancreatic exocrine benign tumor, chronic pancreatitis and normal pancreas and marked as group A, group B, group C and group D, respectively. The mRNA expression levels of Bcl-2 and Beclin-1 were detected by real-time fluorescence quantitative PCR and the protein expression levels of Bcl-2 and Beclin-1 were detected through immunohistochemistry. RESULTS The expression levels of Bcl-2 mRNA and protein, were the lowest in group D and the highest in group A (P < 0.05). The expression levels of Beclin-1 mRNA and protein in group A were significantly lower than those in group B and group D (P < 0.05). However, the expression levels of Beclin-1 between group A and group C were not significantly different (P > 0.05). The correlation coefficient between Bcl-2 and Beclin-1 protein expression in pancreatic cancer is--0.827 (P = 0. 042). CONCLUSION Compared with normal pancreatic tissue, pancreatic cancer had Bcl-2 expression upregulated and Beclin-1 expression downregulated. The increased anti-apoptotic effect of Bcl-2 and the decreased autophagic effect of Beclin-1 may collaboratively contribute to the occurrence of pancreatic cancer.
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Affiliation(s)
- Shuang-Shuang Cao
- Department of Hepatobiliopancreatic Surgery, West China Hospital, Sichuan University, Chengdu 400016, China
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Li HM, Zeng YR, Chen FX, Wu LP, Wei FG, Tao J, Lu HM, Wu ZL. [Detecting phospho-signaling protein of bone marrow leukemia cells by phospho-signaling flow cytometry]. Zhongguo Shi Yan Xue Ye Xue Za Zhi 2011; 19:1176-1179. [PMID: 22040966] [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: 05/31/2023]
Abstract
The purpose of this study was to establish the phospho-specific flow cytometry (phospho-flow) to detect the phosphorylated signaling proteins of leukemia cells and to evaluate its useful value in leukemia study. The bone marrow of leukemia children was collected, and treated by phospho-flow of extracted mononuclear cells (MNC) and phospho-flow of directly fixed bone marrow (BM) respectively. In phospho-flow of extracted MNC, the MNC extracted from BM were fixed and permeabilized, then were cultured with P-AKT and P-ERK1/2, finally were analyzed by flow cytometry. In phospho-flow of directly fixed BM, the BM was treated with fixation/lysis buffer and 90% methanol, then were incubated with the surface CD antibody, P-AKT and P-ERK1/2, finally the treated BM cells were analyzed by flow cytometry. The results showed that the positive rates of P-AKT and P-ERK1/2 in MNC treated by phospho-flow of extracted MNC of 26 leukemia children were 46.2% and 30.8% respectively, while the positive rates of P-AKT and P-ERK1/2 in BM treated by phospho-flow of directly fixed BM were 50.0% and 38.5% respectively. The comparison of positive rates of P-AKT and P-ERK1/2 between the 2 treatment protocol showed no difference (p > 0.05). It is concluded that the phospho-flow of directly fixed BM established by our laboratory can be used to analyze the signaling proteins of leukemia cells.
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Affiliation(s)
- Hua-Mei Li
- Department of Pediatrics, Guangzhou Medical College, Guangzhou, Guangdong Province, China
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Gottschalk B, Tang S, Bentefour EH, Cascio EW, Prieels D, Lu HM. Water equivalent path length measurement in proton radiotherapy using time resolved diode dosimetry. Med Phys 2011; 38:2282-8. [PMID: 21626963 DOI: 10.1118/1.3567498] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
PURPOSE To verify water equivalent path length (WEPL) before treatment in proton radiotherapy using time resolved in vivo diode dosimetry. METHODS Using a passively scattered range modulated proton beam, the output of a diode driving a fast current-to-voltage amplifier is recorded at a number of depths in a water tank. At each depth, a burst of overlapping single proton pulses is observed. The rms duration of the burst is computed and the resulting data set is fitted with a cubic polynomial. RESULTS When the diode is subsequently set to an arbitrary depth and the polynomial is used as a calibration curve, the "unknown" depth is determined within 0.3 mm rms. CONCLUSIONS A diode or a diode array, placed (for instance) in the rectum in conjunction with a rectal balloon, can potentially determine the WEPL at that point, just prior to treatment, with submillimeter accuracy, allowing the beam energy to be adjusted. The associated unwanted dose is about 0.2% of a typical single fraction treatment dose.
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Affiliation(s)
- B Gottschalk
- Laboratory for Particle Physics and Cosmology, Harvard University, 18 Hammond Street, Cambridge, Massachusetts 02138, USA.
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Li A, Hu WM, Lu HM, Zhang ZD. [Study of the function and mechanism of interleukin cytokines in acute pancreatitis rats]. Sichuan Da Xue Xue Bao Yi Xue Ban 2011; 42:358-363. [PMID: 21826999] [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: 05/31/2023]
Abstract
OBJECTIVE To explore the molecular mechanism of interleukin cytokines IL-6, IL-17, IL-23, IL-23R in the onset of acute pancreatitis in rats pancreatitis models. METHODS Thirty six SD rats were randomized into 3 groups: control group, model group, and intervention group (n = 12). The rats in model group and intervention group were induced by intraperitoneal injection of 1-arginine, and those in intervention group were treated by tail intravenous administration of drugs at the same time. Then the rats were sacrified at 3rd, 6th, and 12th h. after the modeling. The levels of IL-6 ,IL-17, IL-23, IL-23R in blood, pancreas, lung and kidney were checked by ELISA. RESULTS The IL-6 levels of serum, pancreas, lung and kidney in AP Model group were obviously higher than those in the control group and intervention group. This trend increased with time. Similarly, the levels of IL-17 and IL-23 in AP group were obviously higher than those in the control group and intervention group. Compared with the control and intervention group, AP group showed higher IL-23R levels in serum, pancreas, but lower IL-23R levels in lung and kidney. CONCLUSION IL-23 is a mediator involved in the formation of IL-17 and IL-6, they all can promote acute pancreatitis.
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Affiliation(s)
- Ang Li
- Hepatobiliary and Pancreatic Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
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Wang Y, Yin DC, Liu YM, Shi JZ, Lu HM, Shi ZH, Qian AR, Shang P. Design of shared instruments to utilize simulated gravities generated by a large-gradient, high-field superconducting magnet. Rev Sci Instrum 2011; 82:034705. [PMID: 21456774 DOI: 10.1063/1.3557402] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
A high-field superconducting magnet can provide both high-magnetic fields and large-field gradients, which can be used as a special environment for research or practical applications in materials processing, life science studies, physical and chemical reactions, etc. To make full use of a superconducting magnet, shared instruments (the operating platform, sample holders, temperature controller, and observation system) must be prepared as prerequisites. This paper introduces the design of a set of sample holders and a temperature controller in detail with an emphasis on validating the performance of the force and temperature sensors in the high-magnetic field.
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Affiliation(s)
- Y Wang
- Key Lab of Space Bioscience & Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an 710072, Shaanxi, People's Republic of China
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Lu HM, Zhang ZD, Hu WM. A long journey: report of a case with pancreatic abscess extending to the groin. Chin Med J (Engl) 2010; 123:3362-3363. [PMID: 21163147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2023] Open
Affiliation(s)
- Hui-Min Lu
- Department of Hepato-bilio-pancreatic surgery, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
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Pan H, Lu YR, Zhang ZD, Jin X, Wei LL, Yuan Y, Lu HM, Mai G. [The effects of NKG2D mAb on the survival of allogeneic transplanted islets in spontaneous diabetic nonobese diabetic mice]. Sichuan Da Xue Xue Bao Yi Xue Ban 2010; 41:836-848. [PMID: 21302453] [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 investigate the effects of NKG2D mAb on the survival of allogeneic transplanted islets nonobese diabetic (NOD) mice, and to find if CD154 mAb has synergistic effects. METHODS Spontaneous diabetic NOD mice transplanted with allogeneic islets of BALB/c mice were divided into 4 groups. Group A was control group, Group B were treated with anti-NKG2D monoclonal antibody (mAb), Group C were treated with CD154 mAb (MR1), Group D were treated with NKG2D mAb and MR1. Glucose levels were monitored at regular intervals through caudal vein, and islet function was evaluated by glycemia. Histological study was performed at graft rejection or at day 120. Spleen cell suspension was prepared for mixed lymphocyte cultivation. The kidneys hosting the islet graft were prepared with HE staining and immuno-histochemistry staining of CD3, CD4 and CD8 was performed. RESULTS MR1 therapy alone significantly prolonged the survival of islet grafts when compared to NKG2D mAb group and the control group: median graft survival was 41 days versus 8 days (P < 0.05) and 8 days (P < 0.05), respectively. Combination therapy with NKG2D mAb and MR1 prolonged islet grafts survival when compared to MR1 therapy alone: median graft survival was 51 days versus 41 days (P > 0.05). CONCLUSION NKG2D mAb alone did not result in the prolongation of islet graft survival, whereas CD154 mAb increased graft survival. When both antibodies were administered, a synergistic effect was obtained, but did not provide permanent protection from diabetes recurrence.
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Affiliation(s)
- Hua Pan
- Department of Hepatopancreatobiliary, West China Hospital, Sichuan University, Chengdu 610041, China
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Sarfehnia A, Clasie B, Chung E, Lu HM, Flanz J, Cascio E, Engelsman M, Paganetti H, Seuntjens J. Poster - Thur Eve - 64: A Water Calorimetry-Based Dosimetry Standard for Direct Measurement of Absolute Absorbed Dose in Scanning Proton Beam Delivery. Med Phys 2010. [DOI: 10.1118/1.3476169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Xiong JJ, Lu HM, Du XJ, Ke NW, Hu WM. [Study on the role of Th17 cells in the islet transplantation]. Sichuan Da Xue Xue Bao Yi Xue Ban 2010; 41:638-643. [PMID: 20848786] [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: 05/29/2023]
Abstract
OBJECTIVE To study the role of Th17 cells in the Immune rejection of islet transplantation, explore the feasibility of immune tolerance of islet transplantation induced by the combination applying of IL-23R antibody and Anti-CD154mAb. METHODS The in vitro experiments were divided into 5 groups: Blank control group, SD rat islet cells were cultured alone; A group, co-culture of rat pancreatic islet cells and lymphocytes, without IL-23R antibodies; B, C, D groups, co-culture of rat pancreatic islet cells and lymphocytes, respectively with IL-23R antibodies 0.1 microg/mL, 0.5 microg/mL, 1.0 microg/mL. Cells were harvested for Acridine orange (AO)/propidium iodide (PD) fluorescence staining, insulin and glucagon staining and glucose-stimulated insulin secretion test. The in vivo experiments (the purified islet to be transplanted under the left kidney capsule of the mice) were divided into four groups: Control group, BABL/c mice were transplanted with islets of SD rats with no treatments, IL-23R antibody (200 microg) treatment alone, anti-CD154mAb (200 microg) treatment alone and a combination of both. The blood glucose of the transplanted mice were monitored. The kidney of islet grafts were sliced for HE staining and insulin and glucagon immunohistochemical detection. RESULTS Three days after mixed cultivation, the glucose stimulation index was 3.66 +/- 0.10 in blank control group, which was higher than that of other groups. Stimulation index of D group was 1.95 +/- 0.75, which was significantly higher than that of other groups. The functional graft survival of all experimental groups were significantly better than that of control group as demonstrated by immunohistochemical staining of insulin and glucagon, as well as in vitro and in vivo experiments. After three days of islet transplantation, the blood glucose of control group was higher than that of experimental groups, but no significant difference was observed among experimental groups. CONCLUSION Th17 cells were involved in the islet transplant rejection. The expression of IL-17 could be considerably reduced through the block of the IL-23R, the effect of the block had a positive correlation in a dose-dependent manner. The combination of Anti-CD154 mAb and IL-23R antibody could prevent the acute rejection to some extent. However, there's no significant difference compared with the Anti-CD154mAb alone.
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Affiliation(s)
- Jun-Jie Xiong
- Department of Hepatopancreatobiliary, West China Hospital, Sichuan University, Chengdu 610041, China
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Clasie B, Madden T, Lu HM, Zhang K, Flanz J, Kooy H. SU-GG-T-457: Optimal Commissioning for PBS Treatment Planning Systems. Med Phys 2010. [DOI: 10.1118/1.3468855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Wu ZL, Hu GY, Chen FX, Lu HM, Wu ZL, Li HM, Wei FG, Guan JM, Wu LP. [Change of CD4(+) CD25(+) regulatory T cells and NK Cells in peripheral blood of children with acute leukemia and its possible significance in tumor immunity]. Zhongguo Shi Yan Xue Ye Xue Za Zhi 2010; 18:709-713. [PMID: 20561434] [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: 05/29/2023]
Abstract
This study was purposed to investigate the changes of CD4(+) CD25(+) regulatory T cells and NK cells in peripheral blood of acute leukemia children at different stages, the function of immune system and the possible roles of the CD4(+) CD25(+) regulatory T cells as well as NK cells in leukemia immunity. The number and proportion of CD4(+) CD25(+) regulatory T cells and NK cells were detected by flow cytometry in the peripheral blood of 53 acute leukemia children, including 25 patients in new diagnosis and 28 patients in continuous complete remission (CCR), and were compared with that of 20 normal children. The results indicated that the mean proportion of CD4(+) CD25(+) CD127(+) in CD4(+) T cells of peripheral blood in newly diagnosed patients, patients with CCR and normal children were (9.55 +/- 2.41)%, (8.54 +/- 2.51)% and (6.25 +/- 0.85)% respectively, the mean proportions of CD4(+)CD25(+)CD127(+) in newly diagnosed patients and patients with CCR were higher than that in normal children, the mean proportion of CD4(+)CD25(+)CD127(+) in newly diagnosed patients were higher than that in patients with CCR (p < 0.05). At the same time, the NK cell count in patients with acute leukaemia decreased as compared with normal control, while after achieving CCR, the NK cell count in patients were also less than that in normal control (4.11 +/- 3.87% and 10.41 +/- 7.20% vs 14.06 +/- 5.95%, p < 0.05). It is concluded that the application of CD4(+), CD25(+) and CD127(+) to detect regulatory T cells is a simple, reproductive and accurate method, and the CD4(+) CD25(+) CD127(+) T cells can better reflect the proportion of CD4(+)CD25(+) regulatory T cells. The increase of regulatory T cells and decrease of NK cells in pediatric patients with acute leukemia indicate that the function of NK cells may be depressed. Treg T cells play a role in occurrence and development of leukemia, and are involved in down-regulating NK cell function.
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Affiliation(s)
- Ze-Lin Wu
- Department of Pediatrics, Guangzhou Medical College First Affiliated Hospital, Guangzhou 510120, China
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Engelsman M, Lu HM, Herrup D, Bussiere M, Kooy HM. Commissioning a passive-scattering proton therapy nozzle for accurate SOBP delivery. Med Phys 2009; 36:2172-80. [PMID: 19610306 DOI: 10.1118/1.3121489] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
Proton radiotherapy centers that currently use passively scattered proton beams do field specific calibrations for a non-negligible fraction of treatment fields, which is time and resource consuming. Our improved understanding of the passive scattering mode of the IBA universal nozzle, especially of the current modulation function, allowed us to re-commission our treatment control system for accurate delivery of SOBPs of any range and modulation, and to predict the output for each of these fields. We moved away from individual field calibrations to a state where continued quality assurance of SOBP field delivery is ensured by limited system-wide measurements that only require one hour per week. This manuscript reports on a protocol for generation of desired SOBPs and prediction of dose output.
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Affiliation(s)
- M Engelsman
- Department of Radiation Oncology, Francis H. Burr Proton Therapy Center Massachusetts General Hospital, Boston, Massachusetts 02114, USA.
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Clasie B, Bentefour H, Boisseau P, Claereboudt Y, Demaret D, Depauw N, Herrup D, Lu HM, Nett W, Kooy H, Flanz J. TH-C-BRD-01: Technical and Practical Considerations in Implementing Proton Pencil Beam Scanning. Med Phys 2009. [DOI: 10.1118/1.3182603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Wu LP, Chen FX, Lu HM, Wu ZL, Wu ZL. [Biological characteristics of bone marrow-derived mesenchymal stem cells in children with acute leukemia]. Zhongguo Shi Yan Xue Ye Xue Za Zhi 2009; 17:734-738. [PMID: 19549397] [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: 05/28/2023]
Abstract
This study was aimed to investigate the conditions of culturing in vitro mesenchymal stem cells (MSCs) derived from bone marrow of children with acute leukemia and the biological characteristics of MSCs from leukemia children. The bone marrow MSCs of acute leukemia children were isolated by density gradient centrifugation combined with adherent segregating method and cultured in DMEM/F12. The morphology of Wright stained MSCs was observed under inverted microscope. Cell surface markers were analyzed with flow cytometry. The growth characteristic features of cultured MSCs was measured with MTT method. Induced adipogenic and osteogenic differentiation of MSCs in appropriate induction media was observed. The results indicated that BM-MSCs of acute leukemia children could be successfully cultured in vitro in appropriate conditions. At 24 hours of culture the MSCs began to adhere to wall, grew in colony and appeared in different shapes. As the culture lasted, the MSCs proliferated continuously and shaped in fusiform. After 2 - 3 weeks of culture, MSCs covered the bottom of culture flask. The analysis of growth feature showed that MSCs were in latency for 3 days, and then entered into growth period. After 8 days of culture the growth of MSCs showed to be in plateau stage. The shape of MSCs in 1st and 2nd generation showed to be heterogeneous but the 3rd generation to be homogeneous with long-fusiform. Cells were arranged in shape of whirlpool or radiation. The surface marker analysis showed that the MSCs were positive for CD105, CD29, CD13, but negative for CD34, CD45, CD14 and HLA-DR. The MSCs from leukemia children could be induced into adipocytes and osteocytes in appropriate conditions. It is concluded that (1) MSCs derived from children with acute leukemia can be successfully cultured and passaged in vitro; (2) MSCs from leukemia children not received chemotherapy are more successfully cultured in vitro than those received chemotherapy; (3) the common biological characteristics of MSCs from children with acute leukemia are same as the MSCs from healthy person.
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Affiliation(s)
- Li-Ping Wu
- Department of Pediatrics, The First Affiliated Hospital, Guangzhou Medical College, Guangzhou, Guangdong Province, China
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Tian BL, Zhang ZD, Liu XB, Hu WM, Mai G, Zeng Y, Li ZJ, Zhang Y, Le XH, Lu HM. [The POSSUM scoring system for risks assessment in pancreatoduodenectomy]. Zhonghua Wai Ke Za Zhi 2009; 47:814-817. [PMID: 19961009] [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: 05/28/2023]
Abstract
OBJECTIVE To explore the value of the POSSUM scoring system in predicting postoperative morbidity and mortality of pancreatoduodenectomy (PD). METHODS Two hundreds and sixty-five consecutive PDs were performed between January 2005 and December 2007. POSSUM scores which relied on 12 physiologic and 6 operative variables were prospectively calculated for each case. Expected morbidity and mortality were estimated based on POSSUM scores and were compared with observed morbidity, which were diagnosed according to the Clavien complication scheme and domestic reference criteria respectively, and mortality. RESULTS Physiologic scores of 265 cases ranged from 12 to 24,the mean was 15. Operative scores ranged from 14 to 24, the mean was 17. The overall POSSUM scores ranged from 0.24 to 0.88. Average expected morbidity was 43.8%, expected cases were 116. Observed morbidity rate was 39.6% (105/265). The expected and observed morbidities and cases had no significantly differences. All patients were classified to 1 of 4 strata based on their individual POSSUM scores and subsequent risk of morbidity. Predictive value was the highest when scores ranged from 0.4 to 0.8. POSSUM exhibited less predictive value for mortality, but if POSSUM was more than 0.5, it was useful for mortality predicting. CONCLUSIONS POSSUM scoring system has high value for predicting the risk of morbidity in PD and can be helpful in guiding surgery and postoperative management decisions.
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Affiliation(s)
- Bo-Le Tian
- Department of Hepato-bilio-pancreatic Surgery, West China Hospital, Sichuan University, Chengdu 610041, China.
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