9101
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Simmen S, Maane M, Rogler S, Baebler K, Lang S, Cosin-Roger J, Atrott K, Frey-Wagner I, Spielmann P, Wenger RH, Weder B, Zeitz J, Vavricka SR, Rogler G, de Vallière C, Hausmann M, Ruiz PA. Hypoxia Reduces the Transcription of Fibrotic Markers in the Intestinal Mucosa. Inflamm Intest Dis 2021; 6:87-100. [PMID: 34124180 DOI: 10.1159/000513061] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2020] [Accepted: 10/08/2020] [Indexed: 11/19/2022] Open
Abstract
Introduction Intestinal fibrosis, characterized by excessive deposition of extracellular matrix proteins, is a common and severe clinical complication of inflammatory bowel disease (IBD). However, the mechanisms underlying fibrosis remain elusive, and currently, there are limited effective pharmacologic treatments that target the development of fibrosis. Hypoxia is one of the key microenvironmental factors influencing intestinal inflammation and has been linked to fibrosis. Objective In the present study, we sought to elucidate the impact of hypoxia on fibrotic gene expression in the intestinal mucosa. Methods Human volunteers, IBD patients, and dextran sulphate sodium-treated mice were exposed to hypoxia, and colonic biopsies were collected. The human intestinal epithelial cell line Caco-2, human THP-1 macrophages, and primary human gut fibroblasts were subjected to hypoxia, and changes in fibrotic gene expression were assessed. Results Human volunteers subjected to hypoxia presented reduced transcriptional levels of fibrotic and epithelial-mesenchymal transition markers in the intestinal mucosa. IBD patients showed a trend towards a decrease in tissue inhibitor of metalloproteinase 1 protein expression. In mice, hypoxic conditions reduced the colonic expression of several collagens and matrix metalloproteinases. Hypoxic Caco-2 cells, THP-1 cells, and primary gut fibroblasts showed a significant downregulation in the expression of fibrotic and tissue remodelling factors. Conclusions Stabilization of hypoxia-inducible factors might represent a novel therapeutic approach for the treatment of IBD-associated fibrosis.
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Affiliation(s)
- Simona Simmen
- Department of Gastroenterology and Hepatology, University of Zurich, Zurich, Switzerland
| | - Max Maane
- Department of Gastroenterology and Hepatology, University of Zurich, Zurich, Switzerland
| | - Sarah Rogler
- Department of Gastroenterology and Hepatology, University of Zurich, Zurich, Switzerland
| | - Katherina Baebler
- Department of Gastroenterology and Hepatology, University of Zurich, Zurich, Switzerland
| | - Silvia Lang
- Department of Gastroenterology and Hepatology, University of Zurich, Zurich, Switzerland
| | - Jesus Cosin-Roger
- Department of Gastroenterology and Hepatology, University of Zurich, Zurich, Switzerland
| | - Kirstin Atrott
- Department of Gastroenterology and Hepatology, University of Zurich, Zurich, Switzerland
| | - Isabelle Frey-Wagner
- Department of Gastroenterology and Hepatology, University of Zurich, Zurich, Switzerland
| | - Partick Spielmann
- Institute of Physiology, University of Zurich, Zurich, Switzerland.,Zurich Center for Integrative Human Physiology (ZIHP), University of Zurich, Zurich, Switzerland
| | - Roland H Wenger
- Institute of Physiology, University of Zurich, Zurich, Switzerland.,Zurich Center for Integrative Human Physiology (ZIHP), University of Zurich, Zurich, Switzerland
| | - Bruce Weder
- Department of Gastroenterology and Hepatology, University of Zurich, Zurich, Switzerland
| | - Jonas Zeitz
- Department of Gastroenterology and Hepatology, University of Zurich, Zurich, Switzerland.,Center of Gastroenterology, Clinic Hirslanden, Zurich, Switzerland
| | - Stephan R Vavricka
- Department of Gastroenterology and Hepatology, University of Zurich, Zurich, Switzerland
| | - Gerhard Rogler
- Department of Gastroenterology and Hepatology, University of Zurich, Zurich, Switzerland.,Zurich Center for Integrative Human Physiology (ZIHP), University of Zurich, Zurich, Switzerland
| | - Cheryl de Vallière
- Department of Gastroenterology and Hepatology, University of Zurich, Zurich, Switzerland
| | - Martin Hausmann
- Department of Gastroenterology and Hepatology, University of Zurich, Zurich, Switzerland
| | - Pedro A Ruiz
- Department of Gastroenterology and Hepatology, University of Zurich, Zurich, Switzerland
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9102
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Dong MN, Xiao Y, Li YF, Wang DM, Qu YP, Fang TW, Li H, Liu MW. Amelioration of paraquat-induced pulmonary fibrosis in mice by regulating miR-140-5p expression with the fibrogenic inhibitor Xuebijing. Int J Immunopathol Pharmacol 2021; 34:2058738420923911. [PMID: 32462952 PMCID: PMC7262989 DOI: 10.1177/2058738420923911] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Intravenous Xuebijing (XBJ) therapy suppresses paraquat (PQ)-induced pulmonary fibrosis. However, the mechanism underlying this suppression remains unknown. This work aimed to analyze the miR-140-5p-induced effects of XBJ injection on PQ-induced pulmonary fibrosis in mice. The mice were arbitrarily assigned to four groups. The model group was administered with PQ only. The PQ treatment group was administered with PQ and XBJ. The control group was administered with saline only. The control treatment group was administered with XBJ only. The miR-140-5p and miR-140-5p knockout animal models were overexpressed. The gene expression levels of miR-140-5p, transglutaminase-2 (TG2), β-catenin, Wnt-1, connective tissue growth factor (CTGF), mothers against decapentaplegic homolog (Smad), and transforming growth factor-β1 (TGF-β1) in the lungs were assayed with quantitative reverse transcription polymerase chain reaction (qRT-PCR) and Western blot analysis. The levels of TGF-β1, CTGF, and matrix metalloproteinase-9 (MMP-9) in the bronchoalveolar lavage fluid were assessed by enzyme-linked immunosorbent assay (ELISA). Hydroxyproline (Hyp) levels and pulmonary fibrosis were also scored. After 14 days of PQ induction of pulmonary fibrosis, AdCMV-miR-140-5p, and XBJ upregulated miR-140-5p expression; blocked the expressions of TG2, Wnt-1, and β-catenin; and decreased p-Smad2, p-Smad3, CTGF, MMP-9, and TGF-β1 expressions. In addition, Hyp and pulmonary fibrosis scores in XBJ-treated mice decreased. Histological results confirmed that PQ-induced pulmonary fibrosis in XBJ-treated lungs was attenuated. TG2 expression and the Wnt-1/β-catenin signaling pathway were suppressed by the elevated levels of miR-140-5p expression. This inhibition was pivotal in the protective effect of XBJ against PQ-induced pulmonary fibrosis. Thus, XBJ efficiently alleviated PQ-induced pulmonary fibrosis in mice.
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Affiliation(s)
- Min-Na Dong
- Department of Emergency, First Hospital Affiliated to Kunming Medical University, Kunming, China
| | - Yun Xiao
- Intensive Care Unit, The Third Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Yun-Fei Li
- Department of Elderly Cardiovascular Diseases, First Hospital Affiliated to Kunming Medical University, Kunming, China
| | - Dong-Mei Wang
- Yunnan Green Field Biological Pharmaceutical Co., Ltd., Kunming, China
| | - Ya-Ping Qu
- Department of Postgraduate, Kunming Medical University, Kunming, China
| | - Tian-Wen Fang
- Department of Postgraduate, Kunming Medical University, Kunming, China
| | - Hui Li
- Yunnan Green Field Biological Pharmaceutical Co., Ltd., Kunming, China
| | - Ming-Wei Liu
- Department of Emergency, First Hospital Affiliated to Kunming Medical University, Kunming, China
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9103
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Ollauri-Ibáñez C, Ayuso-Íñigo B, Pericacho M. Hot and Cold Tumors: Is Endoglin (CD105) a Potential Target for Vessel Normalization? Cancers (Basel) 2021; 13:1552. [PMID: 33800564 PMCID: PMC8038031 DOI: 10.3390/cancers13071552] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 03/24/2021] [Accepted: 03/26/2021] [Indexed: 12/15/2022] Open
Abstract
Tumors are complex masses formed by malignant but also by normal cells. The interaction between these cells via cytokines, chemokines, growth factors, and enzymes that remodel the extracellular matrix (ECM) constitutes the tumor microenvironment (TME). This TME can be determinant in the prognosis and the response to some treatments such as immunotherapy. Depending on their TME, two types of tumors can be defined: hot tumors, characterized by an immunosupportive TME and a good response to immunotherapy; and cold tumors, which respond poorly to this therapy and are characterized by an immunosuppressive TME. A therapeutic strategy that has been shown to be useful for the conversion of cold tumors into hot tumors is vascular normalization. In this review we propose that endoglin (CD105) may be a useful target of this strategy since it is involved in the three main processes involved in the generation of the TME: angiogenesis, inflammation, and cancer-associated fibroblast (CAF) accumulation. Moreover, the analysis of endoglin expression in tumors, which is already used in the clinic to study the microvascular density and that is associated with worse prognosis, could be used to predict a patient's response to immunotherapy.
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Affiliation(s)
| | | | - Miguel Pericacho
- Renal and Cardiovascular Research Unit, Group of Physiopathology of the Vascular Endothelium (ENDOVAS), Biomedical Research Institute of Salamanca (IBSAL), Department of Physiology and Pharmacology, University of Salamanca, 37007 Salamanca, Spain; (C.O.-I.); (B.A.-Í.)
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9104
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Feng J, Fang B, Zhou D, Wang J, Zou D, Yu G, Fen Y, Peng D, Hu J, Zhan D. Clinical Effect of Traditional Chinese Medicine Shenhuang Granule in Critically Ill Patients with COVID-19: A Single-Centered, Retrospective, Observational Study. J Microbiol Biotechnol 2021; 31:380-386. [PMID: 33746189 PMCID: PMC9705840 DOI: 10.4014/jmb.2009.09029] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 02/05/2021] [Accepted: 02/06/2021] [Indexed: 01/08/2023]
Abstract
The coronavirus disease 2019 (COVID-19) pandemic has become a public health emergency of global concern. In China, traditional Chinese medicine has been widely administered to COVID-19 patients without sufficient evidence. To evaluate the efficacy of Shenhuang Granule (SHG) for treating critically ill patients with COVID-19, we included in this study 118 patients who were admitted to the ICU of Tongji Hospital between January 28, 2020 and March 28, 2020. Among these patients, 33 (27.9%) received standard care plus SHG (treatment group) and 85 (72.1%) received standard care alone (control group). Enrolled patients had a median (IQR) age of 68 (57-75) years, and most (79 [67.1%]) were men. At end point of this study, 83 (70.3%) had died in ICU, 29 (24.5%) had been discharged from ICU, and 6 patients (5.2%) were still in ICU. Compared with control group, mortality was significantly lower in treatment group (45.4% vs. 80%, p < .001). Patients in treatment group were less likely to develop acute respiratory distress syndrome (ARDS) (12 [36.3%] vs. 54 [63.5%], p = 0.012) and cardiac injury (5 [15.1%] vs. 32 [37.6%], p = 0.026), and less likely to receive mechanical ventilation (22 [66.7%] vs. 72 [84.7%], p = 0.028) than those in control group. The median time from ICU admission to discharge was shorter in treatment group (32 [20-73] days vs. 76 [63-79] days, p = 0.0074). These findings suggest that SHG treatment as a complementary therapy might be effective for critically ill adults with COVID-19 and warrant further clinical trials.
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Affiliation(s)
- Jun Feng
- Department of Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, P.R. China
| | - Bangjiang Fang
- Department of Emergency Medicine, LongHua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, P.R. China
| | - Daixing Zhou
- Department of Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, P.R. China
| | - Junshuai Wang
- Department of Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, P.R. China
| | - Dengxiu Zou
- Department of Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, P.R. China
| | - Gang Yu
- Department of Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, P.R. China
| | - Yikuan Fen
- Department of Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, P.R. China
| | - Dan Peng
- Department of Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, P.R. China
| | - Jifa Hu
- Office of Academic Research, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, P.R. China,Corresponding authors J. Hu E-mail:
| | - Daqian Zhan
- Department of Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, P.R. China,D. Zhan Phone: +86-27-83665204 E-mail:
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9105
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Chung CC, Lin YK, Kao YH, Lin SH, Chen YJ. Physiological testosterone attenuates profibrotic activities of rat cardiac fibroblasts through modulation of nitric oxide and calcium homeostasis. Endocr J 2021; 68:307-315. [PMID: 33115984 DOI: 10.1507/endocrj.ej20-0344] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Testosterone deficiency is associated with poor prognosis among patients with chronic heart failure (HF). Physiological testosterone improves the exercise capacity of patients with HF. In this study, we evaluated whether treatment with physiological testosterone contributes to anti-fibrogenesis by modifying calcium homeostasis in cardiac fibroblasts and we studied the underlying mechanisms. Nitric oxide (NO) analyses, calcium (Ca2+) fluorescence, and Western blotting were performed in primary isolated rat cardiac fibroblasts with or without (control cells) testosterone (10, 100, 1,000 nmol/L) treatment for 48 hours. Physiological testosterone (10 nmol/L) increased NO production and phosphorylation at the inhibitory site of the inositol trisphosphate (IP3) receptor, thereby reducing Ca2+ entry, phosphorylated Ca2+/calmodulin-dependent protein kinase II (CaMKII) expression, type I and type III pro-collagen production. Non-physiological testosterone-treated fibroblasts exhibited similar NO and collagen production capabilities as compared to control (testosterone deficient) fibroblasts. These effects were blocked by co-treatment with NO inhibitor (L-NG-nitro arginine methyl ester [L-NAME], 100 μmol/L). In the presence of the IP3 receptor inhibitor (2-aminoethyl diphenylborinate [2-APB], 50 μmol/L), testosterone-deficient and physiological testosterone-treated fibroblasts exhibited similar phosphorylated CaMKII expression. When treated with 2-APB or CaMKII inhibitor (KN93, 10 μmol/L), testosterone-deficient and physiological testosterone-treated fibroblasts exhibited similar type I, and type III collagen production. In conclusion, physiological testosterone activates NO production, and attenuates the IP3 receptor/Ca2+ entry/CaMKII signaling pathway, thereby inhibiting the collagen production capability of cardiac fibroblasts.
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Affiliation(s)
- Cheng-Chih Chung
- Division of Cardiology, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
- Division of Cardiovascular Medicine, Department of Internal Medicine, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan
- Taipei Heart Institute, Taipei Medical University, Taipei, Taiwan
| | - Yung-Kuo Lin
- Division of Cardiology, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
- Division of Cardiovascular Medicine, Department of Internal Medicine, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan
- Taipei Heart Institute, Taipei Medical University, Taipei, Taiwan
| | - Yu-Hsun Kao
- Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
- Department of Medical Education and Research, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan
| | - Shyh-Hsiang Lin
- School of Nutrition and Health Sciences, College of Nutrition, Taipei Medical University, Taipei, Taiwan
| | - Yi-Jen Chen
- Division of Cardiovascular Medicine, Department of Internal Medicine, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan
- Taipei Heart Institute, Taipei Medical University, Taipei, Taiwan
- Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
- Cardiovascular Research Center, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan
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9106
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Peng P, Dong Z, Wei J, Liu L, Luo Z, Cao S. Reliability of distally based sural flap in elderly patients: comparison between elderly and young patients in a single center. BMC Surg 2021; 21:167. [PMID: 33775250 PMCID: PMC8005232 DOI: 10.1186/s12893-021-01175-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Accepted: 03/23/2021] [Indexed: 11/21/2022] Open
Abstract
Background Reconstructions the soft-tissue defects of the distal lower extremities in the elderly patients (≥ 60 years old) are full of challenges because of many comorbidities. The purpose of this study was to report the clinical application of the distally based sural flap in the elderly patients, and to verify the reliability of this flap in the elderly patients. Methods Between March of 2005 and December of 2019, 53 patients aged over 60-year-old and 55 patients aged 18 to 30-year-old who underwent the procedure have been included in this study. The reconstruction outcomes, medical-related complications, flap viability-related complications and potential risk factors are compared between the group A (≥ 60 years old) and group B (ranging from 18 to 30 years old). Results The partial necrosis rate in group A (9.43%) is higher than group B (9.09%), but the difference is not significant (P > 0.05). The constitute ratio of the defects that were successfully covered using the sural flap alone or combining with simple salvage method (i.e., skin grafting) is 96.22% and 98.18% in group A and B, respectively (P > 0.05). The differences of the risk flaps factors that affected the survival of distally based sural flap were not significant between group A and B (P > 0.05). Conclusions The distally based sural flap can be effectively used to repair the soft-tissue defect of the lower extremity in the elderly patients. It is safe and reliable to harvest and transfer the flap in one stage, and the delay surgery is not necessary.
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Affiliation(s)
- Ping Peng
- Department of Orthopedics, The Second Xiangya Hospital, Central South University, No. 139 Renmin Road, Changsha, 410011, Hunan, China
| | - Zhonggen Dong
- Department of Orthopedics, The Second Xiangya Hospital, Central South University, No. 139 Renmin Road, Changsha, 410011, Hunan, China
| | - Jianwei Wei
- Department of Orthopedics, The Second Xiangya Hospital, Central South University, No. 139 Renmin Road, Changsha, 410011, Hunan, China.
| | - Lihong Liu
- Department of Orthopedics, The Second Xiangya Hospital, Central South University, No. 139 Renmin Road, Changsha, 410011, Hunan, China
| | - Zhaobiao Luo
- Department of Orthopedics, The Second Xiangya Hospital, Central South University, No. 139 Renmin Road, Changsha, 410011, Hunan, China
| | - Shu Cao
- Department of Orthopedics, The Second Xiangya Hospital, Central South University, No. 139 Renmin Road, Changsha, 410011, Hunan, China
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9107
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Nazir R, Ali J, Rasul I, Widemann E, Shafiq S. Eco-Environmental Aspects of COVID-19 Pandemic and Potential Control Strategies. Int J Environ Res Public Health 2021; 18:3488. [PMID: 33801704 PMCID: PMC8037994 DOI: 10.3390/ijerph18073488] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 03/14/2021] [Accepted: 03/24/2021] [Indexed: 01/10/2023]
Abstract
A new coronavirus-strain from a zoonotic reservoir (probably bat)-termed as severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)-has recently claimed more than two million deaths worldwide. Consequently, a burst of scientific reports on epidemiology, symptoms, and diagnosis came out. However, a comprehensive understanding of eco-environmental aspects that may contribute to coronavirus disease 2019 (COVID-19) spread is still missing, and we therefore aim to focus here on these aspects. In addition to human-human direct SARS-CoV-2 transmission, eco-environmental sources, such as air aerosols, different public use objects, hospital wastes, livestock/pet animals, municipal wastes, ventilation facilities, soil and groundwater potentially contribute to SARS-CoV-2 transmission. Further, high temperature and humidity were found to limit the spread of COVID-19. Although the COVID-19 pandemic led to decrease air and noise pollution during the period of lockdown, increased use of masks and gloves is threatening the environment by water and soil pollutions. COVID-19 badly impacted all the socio-economic groups in different capacities, where women, slum dwellers, and the people lacking social protections are the most vulnerable. Finally, sustainable strategies, waste management, biodiversity reclaim, eco-friendly lifestyle, improved health infrastructure and public awareness, were proposed to minimize the COVID-19 impact on our society and environment. These strategies will seemingly be equally effective against any future outbreak.
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Affiliation(s)
- Rashid Nazir
- Department of Environmental Sciences, Abbottabad Campus, COMSATS University Islamabad, University Road, Abbottabad 22060, Pakistan;
| | - Jawad Ali
- Department of Biotechnology, Abbottabad Campus, Tobe Camp, COMSATS University Islamabad, University Road, Abbottabad 22060, Pakistan;
| | - Ijaz Rasul
- Plant Virology Section, Department of Bioinformatics and Biotechnology, Government College University Faisalabad, Faisalabad 38000, Pakistan;
| | - Emilie Widemann
- Department of Biology, University of Western Ontario, London, ON N6A5B7, Canada;
| | - Sarfraz Shafiq
- Department of Anatomy and Cell Biology, University of Western Ontario, London, ON N6A3K7, Canada
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9108
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Chen J, Qiu T, Guo L, He L, Li X. Topology Reliable LCST-Type Behavior of ABA Triblock Polymer and Influence on Water Condensation and Crystallization. Macromol Rapid Commun 2021; 42:e2100024. [PMID: 33768621 DOI: 10.1002/marc.202100024] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 02/15/2021] [Indexed: 01/26/2023]
Abstract
As a kind of smart material, thermoresponsive hydrogels are widely investigated and applied in many fields. Due to the limitation of the freezing temperature of the water, it is a challenge to further broaden their sol-gel transition temperature (Tgel ) range, especially below 0 °C. Herein, the lower critical solution temperature type of amphiphilic ABA triblock copolymers, synthesized via two-step reversible addition-fragmentation chain transfer (RAFT) polymerization is demonstrated. The hydrophilic A-block and the hydrophobic B-block are composed of poly(N,N-dimethylacrylamide) (PDMAA) and poly(diacetone acrylamide) (PDAAM), respectively. The degree of polymerization (DP) of both A-block and B-block shows a significant influence on the Tgel of triblock copolymer dispersion. By changing the length of these two blocks or physically blending these copolymers dispersions, the Tgel can be well adjusted in a temperature range from 45 to -10 °C. Moreover, When the Tgel is higher than 4 °C, the triblock copolymer coatings show a good anti-fogging property. And when the Tgel is around or lower than the freezing temperature of the water, aqueous dispersions of the triblock copolymer have an ice recrystallization inhibition activity, resulting in the decrease of average maximum grain size (MLGS) of ice crystal.
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Affiliation(s)
- Jing Chen
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Teng Qiu
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Longhai Guo
- Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Lifan He
- Beijing Engineering Research Center of Synthesis and Application of Waterborne Polymer, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Xiaoyu Li
- Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
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9109
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Kiseleva YV, Antonyan SZ, Zharikova TS, Tupikin KA, Kalinin DV, Zharikov YO. Molecular pathways of liver regeneration: A comprehensive review. World J Hepatol 2021; 13:270-290. [PMID: 33815672 PMCID: PMC8006075 DOI: 10.4254/wjh.v13.i3.270] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [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: 10/23/2020] [Revised: 01/20/2021] [Accepted: 03/12/2021] [Indexed: 02/06/2023] Open
Abstract
The liver is a unique parenchymal organ with a regenerative capacity allowing it to restore up to 70% of its volume. Although knowledge of this phenomenon dates back to Greek mythology (the story of Prometheus), many aspects of liver regeneration are still not understood. A variety of different factors, including inflammatory cytokines, growth factors, and bile acids, promote liver regeneration and control the final size of the organ during typical regeneration, which is performed by mature hepatocytes, and during alternative regeneration, which is performed by recently identified resident stem cells called “hepatic progenitor cells”. Hepatic progenitor cells drive liver regeneration when hepatocytes are unable to restore the liver mass, such as in cases of chronic injury or excessive acute injury. In liver maintenance, the body mass ratio is essential for homeostasis because the liver has numerous functions; therefore, a greater understanding of this process will lead to better control of liver injuries, improved transplantation of small grafts and the discovery of new methods for the treatment of liver diseases. The current review sheds light on the key molecular pathways and cells involved in typical and progenitor-dependent liver mass regeneration after various acute or chronic injuries. Subsequent studies and a better understanding of liver regeneration will lead to the development of new therapeutic methods for liver diseases.
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Affiliation(s)
- Yana V Kiseleva
- International School “Medicine of the Future”, I.M. Sechenov First Moscow State Medical University (Sechenov University), Moscow 119435, Russia
| | - Sevak Z Antonyan
- Department of Emergency Surgical Gastroenterology, N. V. Sklifosovsky Research Institute for Emergency Medicine, Moscow 129010, Russia
| | - Tatyana S Zharikova
- Department of Human Anatomy, I.M. Sechenov First Moscow State Medical University (Sechenov University), Moscow 119048, Russia
| | - Kirill A Tupikin
- Laboratory of Minimally Invasive Surgery, A.I. Evdokimov Moscow State University of Medicine and Dentistry, Moscow 127473, Russia
| | - Dmitry V Kalinin
- Pathology Department, A.V. Vishnevsky National Medical Research Center of Surgery of the Russian Ministry of Healthcare, Moscow 117997, Russia
| | - Yuri O Zharikov
- Department of Human Anatomy, I.M. Sechenov First Moscow State Medical University (Sechenov University), Moscow 119048, Russia
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9110
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Zhang X, Liu JY, Liao WJ, Chen XP. Differential Effects of Physical and Social Enriched Environment on Angiogenesis in Male Rats After Cerebral Ischemia/Reperfusion Injury. Front Hum Neurosci 2021; 15:622911. [PMID: 33841116 PMCID: PMC8032869 DOI: 10.3389/fnhum.2021.622911] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Accepted: 03/02/2021] [Indexed: 11/19/2022] Open
Abstract
Different housing conditions, including housing space and the physiological and social environment, may affect rodent behavior. Here, we examined the effects of different housing conditions on post-stroke angiogenesis and functional recovery to clarify the ambiguity about environmental enrichment and its components. Male rats in the model groups underwent right middle cerebral artery occlusion (MCAO) followed by reperfusion. The MCAO rats were divided into four groups: the physical enrichment (PE) group, the social enrichment (SE) group, the combined physical and social enrichment (PSE) group and the ischemia/reperfusion + standard conditioning (IS) group. The rats in the sham surgery (SS) group were housed under standard conditions. In a set of behavioral tests, including the modified Neurological Severity Score (mNSS), rotarod test, and adhesive removal test, we demonstrated that the animals in the enriched condition groups exhibited significantly improved neurological functions compared to those in the standard housing group. Smaller infarction volumes were observed in the animals of the PSE group by MRI detection. The enriched conditions increased the microvessel density (MVD) in the ischemic boundary zone, as revealed by CD31 immunofluorescent staining. The immunochemical and q-PCR results further showed that environmental enrichment increased the expression levels of angiogenic factors after ischemia/reperfusion injury. Our data suggest that all three enrichment conditions promoted enhanced angiogenesis and functional recovery after ischemia/reperfusion injury compared to the standard housing, while only exposure to the combination of both physical and social enrichment yielded optimal benefits.
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Affiliation(s)
- Xin Zhang
- Department of Rehabilitation Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Jing-Ying Liu
- Department of Rehabilitation Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Wei-Jing Liao
- Department of Rehabilitation Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Xiu-Ping Chen
- Department of Rehabilitation Medicine, The first Affiliated Hospital of Nanchang University, Nanchang, China
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9111
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Panda S, Behera S, Alam MF, Syed GH. Endoplasmic reticulum & mitochondrial calcium homeostasis: The interplay with viruses. Mitochondrion 2021; 58:227-242. [PMID: 33775873 DOI: 10.1016/j.mito.2021.03.008] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [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: 10/11/2020] [Revised: 03/08/2021] [Accepted: 03/22/2021] [Indexed: 02/08/2023]
Abstract
Calcium ions (Ca2+) act as secondary messengers in a plethora of cellular processes and play crucial role in cellular organelle function and homeostasis. The average resting concentration of Ca2+ is nearly 100 nM and in certain cells it can reach up to 1 µM. The high range of Ca2+ concentration across the plasma membrane and intracellular Ca2+ stores demands a well-coordinated maintenance of free Ca2+ via influx, efflux, buffering and storage. Endoplasmic Reticulum (ER) and Mitochondria depend on Ca2+ for their function and also serve as major players in intracellular Ca2+ homeostasis. The ER-mitochondria interplay helps in orchestrating cellular calcium homeostasis to avoid any detrimental effect resulting from Ca2+ overload or depletion. Since Ca2+ plays a central role in many biological processes it is an essential component of the virus-host interactions. The large gradient across membranes enable the viruses to easily modulate this buffered environment to meet their needs. Viruses exploit Ca2+ signaling to establish productive infection and evade the host immune defense. In this review we will detail the interplay between the viruses and cellular & ER-mitochondrial calcium signaling and the significance of these events on viral life cycle and disease pathogenesis.
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Affiliation(s)
- Swagatika Panda
- Institute of Life Sciences, Bhubaneswar, Virus-Host Interaction Lab, Institute of Life Sciences, Bhubaneswar, India
| | - Suchismita Behera
- Institute of Life Sciences, Bhubaneswar, Clinical Proteomics Laboratory, Institute of Life Sciences, Bhubaneswar, India
| | - Mohd Faraz Alam
- Institute of Life Sciences, Bhubaneswar, Virus-Host Interaction Lab, Institute of Life Sciences, Bhubaneswar, India
| | - Gulam Hussain Syed
- Institute of Life Sciences, Bhubaneswar, Virus-Host Interaction Lab, Institute of Life Sciences, Bhubaneswar, India.
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9112
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Larsen MN, Krustrup P, Araújo Póvoas SC, Castagna C. Accuracy and reliability of the InBody 270 multi-frequency body composition analyser in 10-12-year-old children. PLoS One 2021; 16:e0247362. [PMID: 33770106 PMCID: PMC7996997 DOI: 10.1371/journal.pone.0247362] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Accepted: 02/05/2021] [Indexed: 12/12/2022] Open
Abstract
The aim of this study was at examining the validity and reliability of a marketed bioimpedance (BIA) scale for body composition assessment, in children engaged in an educational football project (FIFA 11 for Health). One-hundred and twenty-seven children (70 boys and 57 girls; age 10.7±0.5 years, body mass 41.2±9.0 kg, Body mass index 18.5±3.3 kg·m-2 and stature 149±7 cm) were evaluated for total body mass, lean body mass, muscle mass, using BIA (InBody 270, Biospace, California, USA) and dual-energy X-ray absorptiometry (DEXA, Lunar Prodigy, GE Medical Systems, Madison, Wisconsin, USA), at baseline conditions. Data analyses were carried out separately for girls and boys. Nearly perfect associations (r = 0.97−0.99) and excellent absolute (TEM = 0.04−1.9%) and relative (ICC = 0.98−1.00) inter-device reliability were found between DEXA and BIA variables. Fat and lean body mass bias (p < .0001) were practically relevant both for the boys (2.56 and 11.22 kg, respectively) and the girls (2.33 and 10.49 kg, respectively). Muscle mass and body fat were underestimated and overestimated, respectively, for the boys and girls. InBody 270 is a valid BIA system for estimating body composition with an excellent inter-device relative and absolute reliability. However, the remarkable measurements bias of BIA fat and muscle mass values discourage its use for clinical prescription. The BIA body composition biases were sex dependent.
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Affiliation(s)
- Malte Nejst Larsen
- Department of Sports Science and Clinical Biomechanics, SDU Sport and Health Sciences Cluster (SHSC), Faculty of Health Sciences, University of Southern Denmark, Odense, Denmark
- * E-mail:
| | - Peter Krustrup
- Department of Sports Science and Clinical Biomechanics, SDU Sport and Health Sciences Cluster (SHSC), Faculty of Health Sciences, University of Southern Denmark, Odense, Denmark
- Department of Sport and Health Sciences, College of Life and Environmental Sciences, University of Exeter, Exeter, United Kingdom
- Department of Physical Education and Sports Training, Shanghai University of Sport, Shanghai (SUS), China
| | - Susana Cristina Araújo Póvoas
- Department of Sports Science and Clinical Biomechanics, SDU Sport and Health Sciences Cluster (SHSC), Faculty of Health Sciences, University of Southern Denmark, Odense, Denmark
- Research Center in Sports Sciences, Health Sciences and Human Development, CIDESD, University Institute of Maia, ISMAI, Maia, Portugal
| | - Carlo Castagna
- Technical Department, Fitness Training and Biomechanics Laboratory, Italian Football Federation, Coverciano, Florence, Italy
- School of Sport and Exercise Sciences, University of Rome Tor Vergata, Rome, Italy
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9113
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Ding T, Su R, Wu R, Xue H, Wang Y, Su R, Gao C, Li X, Wang C. Frontiers of Autoantibodies in Autoimmune Disorders: Crosstalk Between Tfh/Tfr and Regulatory B Cells. Front Immunol 2021; 12:641013. [PMID: 33841422 PMCID: PMC8033031 DOI: 10.3389/fimmu.2021.641013] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Accepted: 03/11/2021] [Indexed: 12/14/2022] Open
Abstract
Balance of Tfh/Tfr cell is critically important for the maintenance of immune tolerance, as evidenced by the fact that T follicular helper (Tfh) cells are central to the autoantibodies generation through providing necessary help for germinal center (GC) B cells, whereas T follicular regulatory (Tfr) cells significantly inhibit autoimmune inflammation process through restraining Tfh cell responses. However, signals underlying the regulation of Tfh and Tfr cells are largely undefined. Regulatory B cells (Bregs) is a heterogeneous subpopulation of B cells with immunosuppressive function. Considerable advances have been made in their functions to produce anti‐inflammatory cytokines and to regulate Th17, Th1, and Treg cells in autoimmune diseases. The recent identification of their correlations with dysregulated Tfr/Tfh cells and autoantibody production makes Bregs an important checkpoint in GC response. Bregs exert profound impacts on the differentiation, function, and distribution of Tfh and Tfr cells in the immune microenvironment. Thus, unraveling mechanistic information on Tfh-Breg and Tfr-Breg interactions will inspire novel implications for the establishment of homeostasis and prevention of autoantibodies in diverse diseases. This review summarizes the dysregulation of Tfh/Tfr cells in autoimmune diseases with a focus on the emerging role of Bregs in regulating the balance between Tfh and Tfr cells. The previously unsuspected crosstalk between Bregs and Tfh/Tfr cells will be beneficial to understand the cellular mechanisms of autoantibody production and evoke a revolution in immunotherapy for autoimmune diseases.
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Affiliation(s)
- Tingting Ding
- Department of Rheumatology, The Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Rui Su
- Department of Rheumatology, The Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Ruihe Wu
- Department of Rheumatology, The Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Hongwei Xue
- Department of Rheumatology, The Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Yanyan Wang
- Department of Rheumatology, The Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Ronghui Su
- Department of Rheumatology, The Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Chong Gao
- Pathology, Joint Program in Transfusion Medicine, Brigham and Women's Hospital/Children's Hospital and Harvard Medical School, Boston, MA, United States
| | - Xiaofeng Li
- Department of Rheumatology, The Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Caihong Wang
- Department of Rheumatology, The Second Hospital of Shanxi Medical University, Taiyuan, China
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9114
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Yang M, Cao P, Zhao Z, Wang Z, Jia C, Guo Y, Yin H, Zhao M, Ding Y, Wu H, Lu Q. An Enhanced Expression Level of CXCR3 on Tfh-like Cells from Lupus Skin Lesions Rather Than Lupus Peripheral Blood. Clin Immunol 2021; 226:108717. [PMID: 33775870 DOI: 10.1016/j.clim.2021.108717] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Accepted: 03/23/2021] [Indexed: 12/13/2022]
Abstract
Systemic lupus erythematosus (SLE) is a systemic autoimmune disease, and the etiopathogenesis is unclear. Follicular helper T (Tfh) cells have been reported as an important pathogenic cell type in SLE. CXCR3 was reported to be decreased on lupus peripheral CD4+T cells. However, the expression level of CCR4, CCR6 and CXCR3 on Tfh-like cells in SLE peripheral blood and skin lesions is unknown. In this study, we detected CCR4, CCR6 and CXCR3 expression level on Tfh-like cells in the peripheral blood and skin lesions from SLE patients and normal controls (NCs). A decreased expression level of CXCR3 on Tfh-like cells was found in lupus peripheral blood. However, an increased CXCR3 expression was observed on total CD4+T and Tfh-like cells from lupus skin lesions. Moreover, we observed a higher expression level of CXCR3 in Tfh cells from human tonsils. These findings indicate that CXCR3 might help Tfh-like cells to migrate into the inflammatory sites.
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Affiliation(s)
- Ming Yang
- Department of Dermatology, Second Xiangya Hospital, Central South University, Hunan Key Laboratory of Medical Epigenomics, Changsha, Hunan, China
| | - Pengpeng Cao
- Department of Dermatology, Second Xiangya Hospital, Central South University, Hunan Key Laboratory of Medical Epigenomics, Changsha, Hunan, China
| | - Zhidan Zhao
- Department of Dermatology, Second Xiangya Hospital, Central South University, Hunan Key Laboratory of Medical Epigenomics, Changsha, Hunan, China
| | - Zheyu Wang
- University of South China, Hengyang, Hunan, China
| | - Chen Jia
- Department of Dermatology, Second Xiangya Hospital, Central South University, Hunan Key Laboratory of Medical Epigenomics, Changsha, Hunan, China
| | - Yunkai Guo
- Department of Otolaryngology Head and Neck Surgery, Second Xiangya Hospital, Central South University, Changsha, China
| | - Heng Yin
- Department of Dermatology, Second Xiangya Hospital, Central South University, Hunan Key Laboratory of Medical Epigenomics, Changsha, Hunan, China
| | - Ming Zhao
- Department of Dermatology, Second Xiangya Hospital, Central South University, Hunan Key Laboratory of Medical Epigenomics, Changsha, Hunan, China
| | - Yan Ding
- Hainan Province Dermatol Disease Hospital, Haikou, Hainan, China
| | - Haijing Wu
- Department of Dermatology, Second Xiangya Hospital, Central South University, Hunan Key Laboratory of Medical Epigenomics, Changsha, Hunan, China.
| | - Qianjin Lu
- Department of Dermatology, Second Xiangya Hospital, Central South University, Hunan Key Laboratory of Medical Epigenomics, Changsha, Hunan, China; Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, Jiangsu, China.
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9115
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Nahshon C, Segev Y, Schmidt M, Bar-Noy T, Ostrovsky L, Lavie O. Outcomes of diagnosed COVID-19 cancer patients: concerning results of a systematic review. J Chemother 2021; 33:528-538. [PMID: 33769233 DOI: 10.1080/1120009x.2021.1899442] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Since the outbreak of coronavirus disease 2019 (COVID-19), malignancy was shown to be prevalent in COVID-19 patients. This systematic review's searches were conducted in MEDLINE(R), Embase, Web of Science, and Scopos. Considered for inclusion were all reports on outcomes of cancer patients diagnosed with COVID-19. A total of 1099 references were identified through database searching and manual search. Finally, 17 references comprising 88 cancer patients, diagnosed with COVID-19, were included. Prevalence of cancer patients with COVID-19 was shown to range from 0.9% to 3%. The evidence suggested a severe clinical course of 50.6% in COVID-19 diagnosed cancer patients and a mortality rate of 34.5%. Subgroup analysis according to recent anti-cancer treatment showed a similar pattern, with the most concerning results in patients receiving recent immunotherapy/immunosuppressive treatment. COVID-19 morbidity and mortality among cancer patients should be reduced by consideration of testing asymptomatic COVID-19 cancer patients, reduction of hospital visits, and consideration of anti-cancer treatment.
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Affiliation(s)
- C Nahshon
- Department of Gynecologic Surgery and Oncology, Carmel Medical Center, Haifa, Israel
| | - Y Segev
- Department of Gynecologic Surgery and Oncology, Carmel Medical Center, Haifa, Israel
| | - M Schmidt
- Department of Gynecologic Surgery and Oncology, Carmel Medical Center, Haifa, Israel
| | - T Bar-Noy
- Department of Gynecologic Surgery and Oncology, Carmel Medical Center, Haifa, Israel
| | - L Ostrovsky
- Department of Gynecologic Surgery and Oncology, Carmel Medical Center, Haifa, Israel
| | - O Lavie
- Department of Gynecologic Surgery and Oncology, Carmel Medical Center, Haifa, Israel
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9116
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Abstract
Fascin actin-bundling protein 1 (FSCN1) is a highly conserved actin-bundling protein that cross links F-actin microfilaments into tight, parallel bundles. Elevated FSCN1 levels have been reported in many types of human cancers and have been correlated with aggressive clinical progression, poor prognosis, and survival outcomes. The overexpression of FSCN1 in cancer cells has been associated with tumor growth, migration, invasion, and metastasis. Currently, FSCN1 is recognized as a candidate biomarker for multiple cancer types and as a potential therapeutic target. The aim of this study was to provide a brief overview of the FSCN1 gene and protein structure and elucidate on its actin-bundling activity and physiological functions. The main focus was on the role of FSCN1 and its upregulatory mechanisms and significance in cancer cells. Up-to-date studies on FSCN1 as a novel biomarker and therapeutic target for human cancers are reviewed. It is shown that FSCN1 is an unusual biomarker and a potential therapeutic target for cancer.
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Affiliation(s)
- Hongliang Liu
- Shanxi Key Laboratory of Otorhinolaryngology Head and Neck Cancer, First Hospital of Shanxi Medical University, Taiyuan 030001, Shanxi, PR China
- Shanxi Province Clinical Medical Research Center for Precision Medicine of Head and Neck Cancer, First Hospital of Shanxi Medical University, Taiyuan 030001, Shanxi, PR China
- Department of Otolaryngology Head & Neck Surgery, First Hospital of Shanxi Medical University, Taiyuan 030001, Shanxi, PR China
- Key Laboratory of Cellular Physiology, Ministry of Education, Shanxi Medical University, Taiyuan 030001, Shanxi, PR China
- Department of Cell Biology and Genetics, School of Basic Medical Sciences, Shanxi Medical University, Taiyuan 030001, Shanxi, PR China
| | - Yu Zhang
- Key Laboratory of Cellular Physiology, Ministry of Education, Shanxi Medical University, Taiyuan 030001, Shanxi, PR China
- Department of Physiology, Shanxi Medical University, Taiyuan 030001, Shanxi, PR China
| | - Li Li
- Department of Cell Biology and Genetics, School of Basic Medical Sciences, Shanxi Medical University, Taiyuan 030001, Shanxi, PR China
| | - Jimin Cao
- Key Laboratory of Cellular Physiology, Ministry of Education, Shanxi Medical University, Taiyuan 030001, Shanxi, PR China
- Department of Physiology, Shanxi Medical University, Taiyuan 030001, Shanxi, PR China
| | - Yujia Guo
- Shanxi Key Laboratory of Otorhinolaryngology Head and Neck Cancer, First Hospital of Shanxi Medical University, Taiyuan 030001, Shanxi, PR China
- Shanxi Province Clinical Medical Research Center for Precision Medicine of Head and Neck Cancer, First Hospital of Shanxi Medical University, Taiyuan 030001, Shanxi, PR China
| | - Yongyan Wu
- Shanxi Key Laboratory of Otorhinolaryngology Head and Neck Cancer, First Hospital of Shanxi Medical University, Taiyuan 030001, Shanxi, PR China
- Shanxi Province Clinical Medical Research Center for Precision Medicine of Head and Neck Cancer, First Hospital of Shanxi Medical University, Taiyuan 030001, Shanxi, PR China
- Department of Otolaryngology Head & Neck Surgery, First Hospital of Shanxi Medical University, Taiyuan 030001, Shanxi, PR China
- Key Laboratory of Cellular Physiology, Ministry of Education, Shanxi Medical University, Taiyuan 030001, Shanxi, PR China
- Department of Biochemistry & Molecular Biology, Shanxi Medical University, Taiyuan 030001, Shanxi, PR China
| | - Wei Gao
- Shanxi Key Laboratory of Otorhinolaryngology Head and Neck Cancer, First Hospital of Shanxi Medical University, Taiyuan 030001, Shanxi, PR China
- Shanxi Province Clinical Medical Research Center for Precision Medicine of Head and Neck Cancer, First Hospital of Shanxi Medical University, Taiyuan 030001, Shanxi, PR China
- Department of Otolaryngology Head & Neck Surgery, First Hospital of Shanxi Medical University, Taiyuan 030001, Shanxi, PR China
- Key Laboratory of Cellular Physiology, Ministry of Education, Shanxi Medical University, Taiyuan 030001, Shanxi, PR China
- Department of Cell Biology and Genetics, School of Basic Medical Sciences, Shanxi Medical University, Taiyuan 030001, Shanxi, PR China
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9117
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Wu Y, Li F, Wang Y, Hu T, Xiao L. Utility of minimum intensity projection images based on three-dimensional CUBE T1 weighted imaging for evaluating middle cerebral artery stenosis. Br J Radiol 2021; 94:20210145. [PMID: 33765393 DOI: 10.1259/bjr.20210145] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
OBJECTIVE This study investigated the diagnostic performance of MinIP images based on three-dimensional variable-flip-angle turbo spin echo T1 weighted imaging (3D CUBE T1WI) from high-resolution vessel wall magnetic resonance imaging for detecting middle cerebral artery (MCA) stenosis. METHODS A total of 63 consecutive patients were included in this study. MinIP images were reconstructed using 3D CUBE T1WI as the source images. The degree and length of MCA stenosis were measured on MinIP images and were compared with digital subtraction angiography (DSA) as the reference standard. RESULTS The intra- and interobserver agreement for both the rate and length of MCA stenosis were excellent for the MinIP images. There was also excellent agreement in the degree of MCA stenosis calculated using MinIP images and DSA. MinIP images had a high sensitivity, specificity for diagnosing MCA stenosis. There was a good correlation between the two methods for measuring the rate and length of MCA stenosis. CONCLUSION MinIP images based on 3D CUBE T1WI are highly consistent with DSA for evaluating the degree and length of MCA stenosis. ADVANCES IN KNOWLEDGE MinIP images can be produced as a derivative from vessel wall imaging and implemented as an adjunct to vessel wall imaging without extra acquisition time.
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Affiliation(s)
- Yejun Wu
- China Medical University, Shenyang, Liaoning, China 110032
| | - Fangbing Li
- China Medical University, Shenyang, Liaoning, China 110032
| | - Yilin Wang
- China Medical University, Shenyang, Liaoning, China 110032
| | - Tianxiang Hu
- China Medical University, Shenyang, Liaoning, China 110032
| | - Liang Xiao
- China Medical University, Shenyang, Liaoning, China 110032
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9118
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Xu B, Liu L, Chen X. Effect of different antiviral regimens on the viral loads in pregnant women with hepatitis B virus infection and their impact on mother-to-child transmission. J Obstet Gynaecol Res 2021; 47:2110-2116. [PMID: 33765690 DOI: 10.1111/jog.14773] [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: 10/30/2020] [Revised: 03/01/2021] [Accepted: 03/10/2021] [Indexed: 11/28/2022]
Abstract
AIM This study aimed to explore the benefits of different antiviral regimens in pregnant women with hepatitis B virus (HBV) infection in an attempt to provide scientific reference for clinically relevant interventions. METHODS The study cohort comprised 64 pregnant women with HBV infection who presented to our hospital from May 2018 to July 2020. The women were grouped according to the treatment administered: a control group consisting of 32 pregnant women who received routine intervention and an observation group consisting of 32 pregnant women who received routine intervention plus tenofovir disoproxil fumarate (TDF) tablets. The two groups were compared in terms of liver function; HBV load (HBV DNA); neonatal characteristics (hepatitis B surface antigen and HBV DNA positivity); levels of interleukin (IL)-2, IL-4, and IL-6; neonatal growth and development; Apgar scores; incidence of adverse events; and incidence of maternal adverse effects during treatment. RESULTS The observation group had lower levels of alanine aminotransferase, glutamic acid aminotransferase, IL-4, IL-6, and HBV DNA and higher levels of IL-2 than the control group after 1 month of treatment (p < 0.05). There was no significant difference in the incidence of adverse events between the two groups (p > 0.05). CONCLUSION The administration of TDF tablets significantly reduced the HBV DNA levels and did not increase the physiological burden or adverse effects in pregnant women with HBV infection.
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Affiliation(s)
- Bei Xu
- Department of Obstetrics, Shenzhen Baoan Women's and Children's Hospital, Jinan University, Shenzhen, Guangdong, China
| | - Lili Liu
- Department of Obstetrics, Shenzhen Baoan Women's and Children's Hospital, Jinan University, Shenzhen, Guangdong, China
| | - Xuri Chen
- Department of Obstetrics, Shenzhen Baoan Women's and Children's Hospital, Jinan University, Shenzhen, Guangdong, China
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9119
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Abstract
In 2016, the Rome criteria were updated as Rome IV, and only minor changes were introduced for functional dyspepsia (FD). The major symptoms of FD now include not only postprandial fullness, but also epigastric pain and burning, and early satiation at above the "bothersome" level. Investigations into the effect of meal ingestion on symptom generation have indicated that not only postprandial fullness and early satiety but also epigastric pain and burning sensation and nausea (not vomiting) may increase after meals. Helicobacter pylori infection is considered to be the cause of dyspepsia if successful eradication leads to sustained resolution of symptoms for more than 6 months, and such a condition has been termed H. pylori-associated dyspepsia. Prompt esophagogastroduodenoscopy and H. pylori "test and treat" may be beneficial, especially in regions with a high prevalence of gastric cancer, such as east Asia. In terms of treatment, acotiamide, tandospirone, and rikkunshito are newly listed in Rome IV as treatment options for FD. Clinical studies in the field of FD should be strictly based on the Rome IV criteria until the next Rome V is published in 2026.
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9120
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Artemaki PI, Letsos PA, Zoupa IC, Katsaraki K, Karousi P, Papageorgiou SG, Pappa V, Scorilas A, Kontos CK. The Multifaceted Role and Utility of MicroRNAs in Indolent B-Cell Non-Hodgkin Lymphomas. Biomedicines 2021; 9:333. [PMID: 33806113 DOI: 10.3390/biomedicines9040333] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 03/14/2021] [Accepted: 03/18/2021] [Indexed: 02/07/2023] Open
Abstract
Normal B-cell development is a tightly regulated complex procedure, the deregulation of which can lead to lymphomagenesis. One common group of blood cancers is the B-cell non-Hodgkin lymphomas (NHLs), which can be categorized according to the proliferation and spread rate of cancer cells into indolent and aggressive ones. The most frequent indolent B-cell NHLs are follicular lymphoma and marginal zone lymphoma. MicroRNAs (miRNAs) are small non-coding RNAs that can greatly influence protein expression. Based on the multiple interactions among miRNAs and their targets, complex networks of gene expression regulation emerge, which normally are essential for proper B-cell development. Multiple miRNAs have been associated with B-cell lymphomas, as the deregulation of these complex networks can lead to such pathological states. The aim of the present review is to summarize the existing information regarding the multifaceted role of miRNAs in indolent B-cell NHLs, affecting the main B-cell subpopulations. We attempt to provide insight into their biological function, the complex miRNA-mRNA interactions, and their biomarker utility in these malignancies. Lastly, we address the limitations that hinder the investigation of the role of miRNAs in these lymphomas and discuss ways that these problems could be overcome in the future.
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9121
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Zuo D, Li C, Liu T, Yue M, Zhang J, Ning G. Construction and validation of a metabolic risk model predicting prognosis of colon cancer. Sci Rep 2021; 11:6837. [PMID: 33767290 PMCID: PMC7994414 DOI: 10.1038/s41598-021-86286-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Accepted: 03/12/2021] [Indexed: 01/31/2023] Open
Abstract
Metabolic genes have played a significant role in tumor development and prognosis. In this study, we constructed a metabolic risk model to predict the prognosis of colon cancer based on The Cancer Genome Atlas (TCGA) and validated the model by Gene Expression Omnibus (GEO). We extracted 753 metabolic genes and identified 139 differentially expressed genes (DEGs) from TCGA database. Then we conducted univariate cox regression analysis and Least Absolute Shrinkage and Selection Operator Cox regression analysis to identify prognosis-related genes and construct the metabolic risk model. An eleven-gene prognostic model was constructed after 1000 resamples. The gene signature has been proved to have an excellent ability to predict prognosis by Kaplan-Meier analysis, time-dependent receiver operating characteristic, risk score, univariate and multivariate cox regression analysis based on TCGA. Then we validated the model by Kaplan-Meier analysis and risk score based on GEO database. Finally, we performed a weighted gene co-expression network analysis and protein-protein interaction network on DEGs, and Kyoto Encyclopedia of Genes and Genomes pathways and Gene Ontology enrichment analyses were conducted. The results of functional analyses showed that most significantly enriched pathways focused on metabolism, especially glucose and lipid metabolism pathways.
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Affiliation(s)
- Didi Zuo
- grid.430605.4Department of Endocrinology and Metabolism, The First Hospital of Jilin University, Changchun, Jilin Province China
| | - Chao Li
- grid.430605.4Department of Colorectal and Anal Surgery, The First Hospital of Jilin University, Changchun, Jilin China
| | - Tao Liu
- grid.430605.4Department of Colorectal and Anal Surgery, The First Hospital of Jilin University, Changchun, Jilin China
| | - Meng Yue
- grid.430605.4Department of Colorectal and Anal Surgery, The First Hospital of Jilin University, Changchun, Jilin China
| | - Jiantao Zhang
- grid.430605.4Department of Colorectal and Anal Surgery, The First Hospital of Jilin University, Changchun, Jilin China
| | - Guang Ning
- grid.430605.4Department of Endocrinology and Metabolism, The First Hospital of Jilin University, Changchun, Jilin Province China ,grid.16821.3c0000 0004 0368 8293Key Laboratory for Endocrine and Metabolic Diseases of Ministry of Health of China, Shanghai National Clinical Research Center for Endocrine and Metabolic Diseases, Shanghai Institute for Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
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Hu Q, Wang D, Yue D, Xu C, Hu B, Cheng P, Zhai Y, Mai H, Li P, Gong J, Zeng X, Jiang T, Mai D, Fu S, Guo L, Lin W. Association of ambient particle pollution with gestational diabetes mellitus and fasting blood glucose levels in pregnant women from two Chinese birth cohorts. Sci Total Environ 2021; 762:143176. [PMID: 33158526 DOI: 10.1016/j.scitotenv.2020.143176] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Revised: 08/21/2020] [Accepted: 10/13/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND Fasting blood glucose may capture the adverse effects of air pollution on pregnant women better than the incidence of gestational diabetes mellitus (GDM), but evidence on the association between air pollution and maternal glucose concentrations is limited. OBJECTIVE To investigate the associations between air pollutants, GDM and fasting blood glucose during pregnancy. METHODS We recruited 2326 pregnant women from two birth cohorts located in Guangzhou and Heshan, the Pearl River Delta region (PRD), China. PM10, PM2.5 and black carbon (BC) exposure concentrations in the first and second trimesters of pregnancy were collected at fixed-site monitoring stations for each cohort. Multiple logistic regressions were employed to estimate the associations between particle pollution and GDM. Mixed-effects models were used to evaluate the associations of air pollutants with blood glucose levels. Restricted cubic spline functions were fitted to visualize the concentration-response relationships. Distributed lag non-linear models were used to estimate week-specific lag effects of particle pollution exposure on GDM and blood glucose. Unconstrained distributed lag models with lags of 0-3 weeks were used to examine potential cumulative effects. RESULTS We observed positive and significant associations of PM10, PM2.5 and BC exposure with fasting glucose, particularly in the second trimester. PM10, PM2.5 and BC were strongly correlated and displayed similar cumulative (lag 0-3 weeks) associations with fasting blood glucose. Exposure to particle pollution was not associated with 1-h or 2-h blood glucose. Models estimating the association between air pollutants and GDM were consistent with statistical insignificance. CONCLUSIONS Based on the results of the present study, exposure to air pollution during pregnancy exerts cumulative, adverse effects on fasting glucose levels. This study provides preliminary support for the use of blood glucose levels to explore the potential health impact of air pollution on pregnant women.
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Affiliation(s)
- Qiansheng Hu
- Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, Guangdong, China
| | - Duo Wang
- Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, Guangdong, China
| | - Dingli Yue
- Guangdong Environmental Monitoring Center, State Environmental Protection Key Laboratory of Regional Air Quality Monitoring, Guangzhou 510308, Guangdong, China
| | - Chengfang Xu
- Department of Obstetrics and Gynecology, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, Guangdong, China
| | - Bo Hu
- Department of Clinical Laboratory, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, Guangdong, China
| | - Peng Cheng
- Institute of Mass Spectrometer and Atmospheric Environment, Jinan University, Guangzhou 510632, Guangdong, China
| | - Yuhong Zhai
- Guangdong Environmental Monitoring Center, State Environmental Protection Key Laboratory of Regional Air Quality Monitoring, Guangzhou 510308, Guangdong, China
| | - Huiying Mai
- Department of Obstetrics and Gynecology, Heshan Maternal and Child Health Hospital, Heshan, 529700 Jiangmen, Guangdong, China
| | - Ping Li
- Department of Obstetrics and Gynecology, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, Guangdong, China
| | - Jiao Gong
- Department of Clinical Laboratory, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, Guangdong, China
| | - Xiaoling Zeng
- Department of Obstetrics and Gynecology, Heshan Maternal and Child Health Hospital, Heshan, 529700 Jiangmen, Guangdong, China
| | - Tingwu Jiang
- Department of Clinical Laboratory, Heshan Maternal and Child Health Hospital, Heshan, 529700 Jiangmen, Guangdong, China
| | - Dejian Mai
- Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, Guangdong, China
| | - Shaojie Fu
- Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, Guangdong, China
| | - Lihua Guo
- Department of Obstetrics and Gynecology, Heshan Maternal and Child Health Hospital, Heshan, 529700 Jiangmen, Guangdong, China
| | - Weiwei Lin
- Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, Guangdong, China.
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9123
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Zhao M, Jia S, Gao X, Qiu H, Wu R, Wu H, Lu Q. Comparative Analysis of Global Proteome and Lysine Acetylome Between Naive CD4 + T Cells and CD4 + T Follicular Helper Cells. Front Immunol 2021; 12:643441. [PMID: 33841426 PMCID: PMC8027069 DOI: 10.3389/fimmu.2021.643441] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Accepted: 02/19/2021] [Indexed: 12/05/2022] Open
Abstract
As a subgroup of CD4+ T helper cells, follicular helper T (Tfh) cells provide help to germinal center B cells and mediate the development of long-lived humoral immunity. Dysregulation of Tfh cells is associated with several major autoimmune diseases. Although recent studies showed that Tfh cell differentiation is controlled by the transcription factor Bcl6, cytokines, and cell-cell signals, limited information is available on the proteome and post-translational modifications (PTMs) of proteins in human Tfh cells. In the present study, we investigated quantitative proteome and acetylome in human naive CD4+ T cells and in vitro induced Tfh (iTfh) cells using the tandem mass tag (TMT) labeling technique, antibody-based affinity enrichment, and high-resolution liquid chromatography-mass spectrometry (LC-MS)/mass spectrometry (MS) analysis. In total, we identified 802 upregulated proteins and 598 downregulated proteins at the threshold of 1.5-fold in iTfh cells compared to naive CD4+ T cells. With the aid of intensive bioinformatics, the biological process, the cellular compartment, the molecular function, Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway, and protein–protein interaction of these differentially expressed proteins were revealed. Moreover, the acetylome data showed that 22 lysine (K) acetylated proteins are upregulated and 26 K acetylated proteins are downregulated in iTfh cells compared to the naive CD4+ T cells, among which 11 differentially acetylated K residues in core histones were identified, indicating that protein acetylation and epigenetic mechanism are involved in regulating Tfh cell differentiation. The study provides some important clues for investigating T cell activation and Tfh cell differentiation.
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Affiliation(s)
- Ming Zhao
- Department of Dermatology, Hunan Key Laboratory of Medical Epigenomics, The Second Xiangya Hospital of Central South University, Changsha, China.,Research Unit of Key Technologies of Diagnosis and Treatment for Immune-Related Skin Diseases, Chinese Academy of Medical Sciences, Changsha, China
| | - Sujie Jia
- Department of Pharmaceutics, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Xiaofei Gao
- Department of Dermatology, Hunan Key Laboratory of Medical Epigenomics, The Second Xiangya Hospital of Central South University, Changsha, China.,Research Unit of Key Technologies of Diagnosis and Treatment for Immune-Related Skin Diseases, Chinese Academy of Medical Sciences, Changsha, China
| | - Hong Qiu
- Department of Dermatology, Hunan Key Laboratory of Medical Epigenomics, The Second Xiangya Hospital of Central South University, Changsha, China.,Research Unit of Key Technologies of Diagnosis and Treatment for Immune-Related Skin Diseases, Chinese Academy of Medical Sciences, Changsha, China
| | - Ruifang Wu
- Department of Dermatology, Hunan Key Laboratory of Medical Epigenomics, The Second Xiangya Hospital of Central South University, Changsha, China.,Research Unit of Key Technologies of Diagnosis and Treatment for Immune-Related Skin Diseases, Chinese Academy of Medical Sciences, Changsha, China
| | - Haijing Wu
- Department of Dermatology, Hunan Key Laboratory of Medical Epigenomics, The Second Xiangya Hospital of Central South University, Changsha, China.,Research Unit of Key Technologies of Diagnosis and Treatment for Immune-Related Skin Diseases, Chinese Academy of Medical Sciences, Changsha, China
| | - Qianjin Lu
- Department of Dermatology, Hunan Key Laboratory of Medical Epigenomics, The Second Xiangya Hospital of Central South University, Changsha, China
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Hendee K, Hunyenyiwa T, Matus K, Toledo M, Mammoto A, Mammoto T. Twist1 signaling in age-dependent decline in angiogenesis and lung regeneration. Aging (Albany NY) 2021; 13:7781-99. [PMID: 33764901 DOI: 10.18632/aging.202875] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [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: 10/26/2020] [Accepted: 03/14/2021] [Indexed: 12/11/2022]
Abstract
Angiogenesis – the formation of new blood capillaries- is impaired in aging animals and contributes to the pathogenesis of age-related diseases. A transcription factor, Twist1, contributes to the pathogenesis of age- and angiogenesis-related diseases such as pulmonary fibrosis and atherosclerosis. However, the mechanism by which Twist1 controls age-dependent decline in angiogenesis remains unclear. In this report, we have demonstrated that the levels of Twist1 are higher, while the expression of peroxisome proliferator-activated receptor gamma coactivator 1-alpha (PGC1α) that stimulates angiogenesis, is lower in endothelial cells (ECs) isolated from aged human adipose tissues and mouse lungs compared to those from young tissues. Knockdown of Twist1 in aged human ECs increases the levels of PGC1α and angiogenic factor receptor, vascular endothelial growth factor receptor (VEGFR2), and restores EC proliferation and migration, while inhibition of PGC1α suppresses these effects. Knockdown of Twist1 in supplemented aged ECs also restores vascular networks in the subcutaneously implanted gel, while these effects are abrogated by knockdown of PGC1α. Age-dependent inhibition of post-pneumonectomy (PNX) lung growth is suppressed in Tie2-specific Twist1 conditional knockout mouse lungs, in which VEGFR2 expression increases after PNX. These results suggest that upregulation of endothelial Twist1 mediates age-dependent decline in angiogenesis and regenerative lung growth.
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9125
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Pu F, Zhang Z, Wang B, Wu Q, Liu J, Shao Z. Total sacrectomy with a combined antero-posterior surgical approach for malignant sacral tumours. Int Orthop 2021; 45:1347-1354. [PMID: 33768338 PMCID: PMC8102440 DOI: 10.1007/s00264-021-05006-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Accepted: 03/16/2021] [Indexed: 11/25/2022]
Abstract
Purpose To investigate the indications, approaches, resection methods, and complications of total sacrectomy with a combined antero-posterior approach for malignant sacral tumours. Methods Fourteen cases of primary malignant sacral tumours treated with total sacrectomy between January 2012 and 2018 were retrospectively analysed. All patients presented with pre-operative lumbosacral pain or constipation. A combined antero-posterior approach was used for tumour resection, and the spinal pedicle screw rod system was used to achieve ilio-lumbar stability. The visual analogue scale (VAS) and Musculoskeletal Tumor Society (MSTS) scores were used to assess pain and lower limb function, respectively. The mean operative time and intra-operative blood loss were 6.54 hours and 2935 mL, respectively. The mean follow-up period was 62 months. Results None of the patients died peri-operatively. At the last follow-up, ten patients were continuously disease-free, three were alive with disease, and one died of disease from lung metastasis. Tumour recurrence occurred in three patients. The MSTS scores ranged from 6 to 28 (20.00–93.33%, 6/30–28/30) with an average of 20 (66.67%, 20/30). Seven patients could walk independently in public, five could only walk at home using a walking aid, and two could only lie down and stand for a short time. Thirteen patients developed post-operative complications such as skin necrosis, screw loosening, connecting rod fracture, neuropathic pain, sciatic nerve injury, dysuria, and urinary incontinence. Conclusion Total sacrectomy can effectively treat malignant sacral tumours with good resection boundaries and prognosis. However, the high incidence of post-operative complications may impact post-operative neurological function.
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Affiliation(s)
- Feifei Pu
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, 430022, Hubei, China
| | - Zhicai Zhang
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, 430022, Hubei, China
| | - Baichuan Wang
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, 430022, Hubei, China
| | - Qiang Wu
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, 430022, Hubei, China
| | - Jianxiang Liu
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, 430022, Hubei, China
| | - Zengwu Shao
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, 430022, Hubei, China.
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9126
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Chu MK, Kim BS, Chung PW, Kim BK, Lee MJ, Park JW, Ahn JY, Bae DW, Song TJ, Sohn JH, Oh K, Kim D, Kim JM, Kim SK, Choi YJ, Chung JM, Moon HS, Chung CS, Park KY, Cho SJ. Clinical features of cluster headache without cranial autonomic symptoms: results from a prospective multicentre study. Sci Rep 2021; 11:6916. [PMID: 33767287 PMCID: PMC7994319 DOI: 10.1038/s41598-021-86408-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 12/20/2020] [Accepted: 03/15/2021] [Indexed: 11/11/2022] Open
Abstract
Although cranial autonomic symptoms (CAS) are typical in cluster headache (CH), some individuals with CH show no CAS during their headache attacks. Probable cluster headache (PCH) is a subtype of CH that fulfils all but one criterion of CH. This study aimed to investigate the frequency and clinical features of CH and PCH without CAS in comparison to those with CAS. We analysed data from the Korea Cluster Headache Registry, a prospective multicentre registry involving data from 16 hospitals. Of the 216 participants with CH and 26 with PCH, 19 (8.8%) and 7 (26.9%), respectively, did not have CAS. Participants with CH without CAS exhibited less severe anxiety (General Anxiety Disorder-7 score, median [interquartile range], 2.0 [1.0–6.0] vs 8.0 [3.0–12.0], p = 0.001) and depression (Patient Health Questionnaire-9 score, 3.0 [1.0–7.0] vs 7.0 [3.0–11.0], p = 0.042) than those with CAS. Among participants with PCH, headache intensity was less severe in participants without CAS than in those with CAS (numeric rating scale, 8.0 [7.0–8.0] vs 9.5 [8.0–10.0], p = 0.015). In conclusion, a significant proportion of participants with CH and PCH did not have CAS. Some clinical features of CH and PCH differed based on the presence of CAS.
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Affiliation(s)
- Min Kyung Chu
- Department of Neurology, Severance Hospital, College of Medicine, Yonsei University, Seoul, Korea
| | - Byung-Su Kim
- Department of Neurology, Bundang Jesaeng General Hospital, Daejin Medical Center, Seongnam, Korea
| | - Pil-Wook Chung
- Department of Neurology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Byung-Kun Kim
- Department of Neurology, Eulji Hospital, Eulji University, Seoul, Korea
| | - Mi Ji Lee
- Department of Neurology, Neuroscience Center, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Jeong Wook Park
- Department of Neurology, Uijeongbu St. Mary's Hospital, The Catholic University of Korea College of Medicine, Uijeongbu, Korea
| | - Jin-Young Ahn
- Department of Neurology, Seoul, Medical Center, Seoul, Korea
| | - Dae Woong Bae
- Department of Neurology, St. Vincent's Hospital, College of Medicine, The Catholic University of Korea, Suwon, Korea
| | - Tae-Jin Song
- Department of Neurology, College of Medicine, Ewha Womans University Seoul Hospital, Seoul, Korea
| | - Jong-Hee Sohn
- Department of Neurology, Chuncheon Sacred Heart Hospital, Hallym University College of Medicine, Chuncheon, Korea
| | - Kyungmi Oh
- Department of Neurology, Korea University College of Medicine, Seoul, Korea
| | - Daeyoung Kim
- Department of Neurology, Chungnam National University College of Medicine, Daejeon, Korea
| | - Jae-Moon Kim
- Department of Neurology, Chungnam National University College of Medicine, Daejeon, Korea
| | - Soo-Kyoung Kim
- Department of Neurology, Gyeongsang National University College of Medicine, Jinju, Korea
| | | | - Jae Myun Chung
- Department of Neurology, Inje University College of Medicine, Seoul, Korea
| | - Heui-Soo Moon
- Department of Neurology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Chin-Sang Chung
- Department of Neurology, Neuroscience Center, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Kwang-Yeol Park
- Department of Neurology, Chung-Ang University Hospital, Seoul, Korea
| | - Soo-Jin Cho
- Department of Neurology, Dongtan Sacred Heart Hospital, Hallym University College of Medicine, Keun Jae Bong-gil 7, Hwaseong, 18450, Gyeonggi-do, Korea.
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9127
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Tong Y, Liu L, Wang R, Yang T, Wen J, Wei S, Jing M, Zou W, Zhao Y. Berberine Attenuates Chronic Atrophic Gastritis Induced by MNNG and Its Potential Mechanism. Front Pharmacol 2021; 12:644638. [PMID: 33841162 PMCID: PMC8026873 DOI: 10.3389/fphar.2021.644638] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Accepted: 02/11/2021] [Indexed: 12/13/2022] Open
Abstract
The purpose of this study was to investigate the therapeutic effect of berberine (BBR) on MNNG-induced chronic atrophic gastritis (CAG) and the possible mechanism of BBR through TGF-β1/PI3K signal pathway. GES-1 were pretreated with MNNG for 2 h before BBR treatment in all procedures. Cell viability was quantified by cell counting kit-8, and GES-1 morphology and proliferation were detected by high content screening (HCS) assay. The rat model of CAG was established by MNNG, and the therapeutic effect of BBR on stomach histopathology and serum supernatant were analyzed in vivo. In addition, the possible mechanism of BBR was further discussed, and the expression of related genes and proteins in TGF-β1/PI3K signal pathway was detected. The results showed that BBR could significantly improve the survival rate and morphological changes of GES-1, improve the gastric tissue injury of CAG rats, and reduce the expression of G-17 and inflammatory factors IL-8, TNF-α, IL-6 and IL-1β. In addition, BBR down-regulated the expression of TGF-β1 axis-related signals such as TGF-β1, PI3K, p-Akt/Akt, p-mTOR/mTOR and P70S6K, and promoted the expression of PTEN, LC3-II and Beclin-1. In Conclusion, BBR can improve CAG which may be closely related to TGF-β1/PI3K signal pathway.
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Affiliation(s)
- Yuling Tong
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,Department of Pharmacy, Chinese PLA General Hospital, Beijing, China
| | - Liping Liu
- Integrative Medical Center, The Fifth Medical Center of PLA General Hospital, Beijing, China
| | - Ruilin Wang
- Integrative Medical Center, The Fifth Medical Center of PLA General Hospital, Beijing, China
| | - Tao Yang
- Department of Pharmacy, Chinese PLA General Hospital, Beijing, China.,College of Clinical Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Jianxia Wen
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,Department of Pharmacy, Chinese PLA General Hospital, Beijing, China
| | - Shizhang Wei
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,Department of Pharmacy, Chinese PLA General Hospital, Beijing, China
| | - Manyi Jing
- Department of Pharmacy, Chinese PLA General Hospital, Beijing, China
| | - Wenjun Zou
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yanling Zhao
- Department of Pharmacy, Chinese PLA General Hospital, Beijing, China
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9128
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Peng W, Zhao ZZ, Jiao L, Wu T, Chen H, Zhang CY, Song JJ, Liu TYH, Wu LJ, Wang MJ, Chen J, Zhou Y, Ying BW. Prospective study of ALDH1A1 gene polymorphisms associated with antituberculosis drug-induced liver injury in western Chinese Han population. Microbiol Immunol 2021; 65:143-153. [PMID: 33527427 DOI: 10.1111/1348-0421.12877] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 10/22/2020] [Revised: 01/12/2021] [Accepted: 01/25/2021] [Indexed: 02/05/2023]
Abstract
Antituberculosis drug-induced liver injury (ATDILI) has received increasing attention globally, which may limit the effectiveness of antituberculosis (anti-TB) treatment. Many host genetic determinants of ATDILI have been identified recently. As little knowledge is currently available about the association between aldehyde dehydrogenase 1 family member A1 (ALDH1A1) polymorphisms and ATDILI, the association between their variants and the susceptibility to ATDILI was investigated. A total of 747 patients with TB treated by first-line anti-TB drugs were prospectively enrolled at West China Hospital. Genomic DNA was extracted from the peripheral blood sample of each patient and seven single-nucleotide polymorphisms (SNPs) of ALDH1A1 gene were screened and genotyped with a custom-designed 2×48-plex SNP Scan TM kit. The patients were followed up monthly to monitor the development of ATDILI. The C allele and the CA genotype of rs7852860 were significantly associated with an elevated risk for ATDILI (p = .006 and 0.005, respectively), which was consistent with the results in the dominant and additive models. No allele, genotype, or genetic model of the other six SNPs (rs3764435, rs348471, rs63319, rs610529, rs7027604, rs8187876) were found to be associated with susceptibility to ATDILI. The findings first demonstrate that rs7852860 variants in ALDH1A1 gene is associated with susceptibility to ATDILI in the Chinese Han population. Validation studies with larger sample sizes and other ethnic groups are needed to confirm the findings.
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Affiliation(s)
- Wu Peng
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Zhen-Zhen Zhao
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Lin Jiao
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Tao Wu
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Hao Chen
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Chun-Ying Zhang
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Jia-Jia Song
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Tang-Yu-Heng Liu
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Li-Juan Wu
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Min-Jin Wang
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Jie Chen
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Yi Zhou
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Bin-Wu Ying
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China
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Lv W, Yu M, Yang Q, Kong P, Yan B. Total flavonoids of Rhizoma drynariae ameliorate steroid‑induced avascular necrosis of the femoral head via the PI3K/AKT pathway. Mol Med Rep 2021; 23:345. [PMID: 33760114 PMCID: PMC7974407 DOI: 10.3892/mmr.2021.11984] [Citation(s) in RCA: 7] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Accepted: 02/16/2021] [Indexed: 02/06/2023] Open
Abstract
Steroid-induced avascular necrosis of the femoral head (SANFH) is a common orthopaedic disease that is difficult to treat. The present study investigated the effects of total flavonoids of Rhizoma drynariae (TFRD) on SANFH and explored its underlying mechanisms. The SANFH rat model was induced by intramuscular injection of lipopolysaccharides and methylprednisolone. Osteoblasts were isolated from the calvariae of neonatal rats and then cultured with dexamethasone (Dex). TFRD was used in vitro and in vivo, respectively. Haematoxylin and eosin staining was used to assess the pathological changes in the femoral head. Terminal deoxynucleotidyl transferase-mediated deoxyuridine triphosphate nick end labelling assay and flow cytometry were conducted to detect apoptosis of osteoblasts. The 2,7-dichlorofluorescein-diacetate staining method was used to detect reactive oxygen species (ROS) levels in osteoblasts and the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay was used to detect osteoblast proliferation. The expression of caspase-3, Bax, Bcl-2, VEGF, runt-related transcription factor 2 (RUNX2), osteoprotegerin (OPG), osteocalcin (OCN), receptor activator of nuclear factor κB ligand (RANKL) and phosphoinositide 3-kinase (PI3K)/AKT pathway related-proteins were detected via western blotting. It was found that TFRD reduced the pathological changes, inhibited apoptosis, increased the expression of VEGF, RUNX2, OPG and OCN, decreased RANKL expression and activated the PI3K/AKT pathway in SANFH rats. TFRD promoted proliferation, inhibited apoptosis and reduced ROS levels by activating the PI3K/AKT pathway in osteoblasts. In conclusion, TFRD protected against SANFH in a rat model. In addition, TFRD protected osteoblasts from Dex-induced damage through the PI3K/AKT pathway. The findings of the present study may contribute to find an effective treatment for the management of SANFH.
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Affiliation(s)
- Wenxue Lv
- Department of Orthopaedics, The Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Lixia, Jinan, Shandong 250014, P.R. China
| | - Mingxiu Yu
- Department of Special Inspection, The Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Lixia, Jinan, Shandong 250014, P.R. China
| | - Qingyi Yang
- Department of Orthopaedics, The Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Lixia, Jinan, Shandong 250014, P.R. China
| | - Peng Kong
- Department of Orthopaedics, The Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Lixia, Jinan, Shandong 250014, P.R. China
| | - Bing Yan
- Department of Orthopaedics, The Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Lixia, Jinan, Shandong 250014, P.R. China
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Cai H, Zheng Y, Wen Z, Yang Y, Yang S, Zhang Q. LncRNA AIRN influences the proliferation and apoptosis of hepatocellular carcinoma cells by regulating STAT1 ubiquitination. Arch Pharm Res 2021; 44:414-426. [PMID: 33759138 DOI: 10.1007/s12272-021-01317-7] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Accepted: 03/06/2021] [Indexed: 01/11/2023]
Abstract
Long non-coding RNAs (LncRNAs) have been implicated in the pathogenesis of various human diseases. In this study, we probed into the role and potential mechanisms of the antisense of IGF2R non-protein coding RNA (LncRNA AIRN) in the progression of hepatocellular carcinoma (HCC). Using a quantitative real-time polymerase chain reaction, we corroborated that LncRNA AIRN expression was raised in the HCC tissues and cells. The bioinformatic analysis revealed that a potential interaction between LncRNA AIRN and STAT1, which was verified by the RNA pull-down and RNA immunoprecipitation. In the cycloheximide-chase assay, the knockdown of LncRNA AIRN enhanced the stability of STAT1 protein. In the immunoprecipitation assay, the knockdown of LncRNA AIRN restrained the cullin 4A (CUL4A)-mediated ubiquitination of STAT1 protein. The cell transfection, MTT and flow cytometry assays expounded that the LncRNA AIRN/STAT1 axis was bound up with the regulation of the proliferation and apoptosis of HCC cells. The in vivo experiments corroborated that the knockdown of LncRNA AIRN restrained the tumor growth of HCC. Our data expounded that the knockdown of LncRNA AIRN restrained HCC cell proliferation and boosted cell apoptosis by restraining the CUL4A-mediated ubiquitination of STAT1 protein.
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Affiliation(s)
- Huajie Cai
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Wenzhou Medical University, Nan Bai Xiang Street, Ouhai District, Wenzhou, 325000, Zhejiang Province, China
| | - Yihu Zheng
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Wenzhou Medical University, Nan Bai Xiang Street, Ouhai District, Wenzhou, 325000, Zhejiang Province, China
| | - Zhengde Wen
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Wenzhou Medical University, Nan Bai Xiang Street, Ouhai District, Wenzhou, 325000, Zhejiang Province, China
| | - Yingnan Yang
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Wenzhou Medical University, Nan Bai Xiang Street, Ouhai District, Wenzhou, 325000, Zhejiang Province, China
| | - Shouzhang Yang
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Wenzhou Medical University, Nan Bai Xiang Street, Ouhai District, Wenzhou, 325000, Zhejiang Province, China
| | - Qiyu Zhang
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Wenzhou Medical University, Nan Bai Xiang Street, Ouhai District, Wenzhou, 325000, Zhejiang Province, China.
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9131
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An SY, Petrescu AD, DeMorrow S. Targeting Certain Interleukins as Novel Treatment Options for Liver Fibrosis. Front Pharmacol 2021; 12:645703. [PMID: 33841164 PMCID: PMC8024568 DOI: 10.3389/fphar.2021.645703] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Accepted: 02/16/2021] [Indexed: 12/14/2022] Open
Abstract
The liver is a major metabolic organ and an immunologically complex organ. It produces and uses many substances such as acute phase proteins, cytokines, chemokines, and complementary components to maintain the balance between immunity and tolerance. Interleukins are important immune control cytokines, that are produced by many body cells. In liver injury, interleukins are produced in large amount by various cell types, and act as pro-inflammatory (e.g. interleukin (IL)-6, IL-13, IL-17, and IL-33) as well as anti-inflammatory (e.g. IL-10) functions in hepatic cells. Recently, interleukins are regarded as interesting therapeutic targets for the treatment of liver fibrosis patients. Hepatic cells such as hepatocytes, hepatic stellate cells, and hepatic macrophages are involved to the initiation, perpetuation, and resolution of fibrosis. The understanding of the role of interleukins in such cells provides opportunity for the development of therapeutic target drugs. This paper aims to understand the functional roles of interleukins in hepatic and immune cells when the liver is damaged, and suggests the possibility of interleukins as a new treatment target in liver fibrosis.
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Affiliation(s)
- Su Yeon An
- Division of Pharmacology and Toxicology, College of Pharmacy, The University of Texas at Austin, Austin, TX, United States
| | - Anca D Petrescu
- Division of Pharmacology and Toxicology, College of Pharmacy, The University of Texas at Austin, Austin, TX, United States
| | - Sharon DeMorrow
- Division of Pharmacology and Toxicology, College of Pharmacy, The University of Texas at Austin, Austin, TX, United States.,Department of Internal Medicine, Dell Medical School, The University of Texas at Austin, Austin, TX, United States.,Research Division, Central Texas Veterans Healthcare System, Temple, TX, United States
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9132
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Abstract
Background: Various microorganisms such as bacteria, virus, and fungi can infect humans and cause not just a simple infection but septic conditions, organ dysfunction, and precancerous conditions or cancer involving various organ systems. After the discovery of the microscope, it was easier to discover and study such microorganisms, as in the case of Helicobacter pylori, a pathogen that was seen in the distant era of the nineteenth century but without being recognized as such. It took 100 years to later discover the pathogenesis and the cancer that this bacterium can cause. Since it was discovered, until today, there has been a continuous search for the understanding of its pathogenetic mechanisms, and the therapeutic approach is continuously updated. Methods: We investigated how diagnosis and therapy were dealt with in the past and how researchers sought to understand, exactly, the pathogenetic biomolecular mechanisms of H. pylori, from the genesis of the infection to the current knowledge, with an analysis of carcinogenic mechanisms in the stomach. We have examined the scientific evolution of the knowledge of the disease over these 40 years in the gastroenterological and pharmacological fields. This was possible through a search in the databases of Medline, the WHO website, the Centers for Disease Control and Prevention (CDC) website, PubMed, and Web of Science to analyze the earlier and the latest data regarding H. pylori. Results: With the scientific discoveries over time, thanks to an increasing number of progressions in scientific research in the analysis of the gastric mucosa, the role of Helicobacter pylori in peptic ulcer, carcinogenesis, and in some forms of gastric lymphoma was revealed. Furthermore, over the years, the biomolecular mechanism involvement in some diseases has also been noted (such as cardiovascular ones), which could affect patients positive for H. pylori. Conclusions: Thanks to scientific and technological advances, the role of the bacterium H. pylori in carcinogenesis has been discovered and demonstrated, and new prospective research is currently attempting to investigate the role of other factors in the stomach and other organs. Cancer from H. pylori infection had a high incidence rate compared to various types of cancer, but in recent years, it is improving thanks to the techniques developed in the detection of the bacterium and the evolution of therapies. Thus, although it has become an increasingly treatable disease, there is still continuous ongoing research in the field of treatment for resistance and pharma compliance. Furthermore, in this field, probiotic therapy is considered a valid adjuvant.
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9133
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Chen Z, Ren X, Ren R, Wang Y, Shang J. The combination of G-CSF and AMD3100 mobilizes bone marrow-derived stem cells to protect against cisplatin-induced acute kidney injury in mice. Stem Cell Res Ther 2021; 12:209. [PMID: 33761993 PMCID: PMC7992860 DOI: 10.1186/s13287-021-02268-y] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Accepted: 03/04/2021] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Several studies have confirmed that mobilizing bone marrow-derived stem cells (BMSCs) ameliorates renal function loss following cisplatin-induced acute kidney injury (AKI). The aim of this study was to explore whether the combination of granulocyte-colony stimulating factor (G-CSF) and plerixafor (AMD3100) exerts beneficial effects on renal function recovery in a model of cisplatin-induced nephrotoxicity. METHODS C57BL/6J mice received intraperitoneal injections of G-CSF (200 μg/kg/day) for 5 consecutive days. On the day of the last injection, the mice received a single subcutaneous dose of AMD3100 (5 mg/kg) 1 h before cisplatin 20 mg/kg injection. Ninety-six hours after cisplatin injection, the mice were euthanized, and blood and tissue samples were collected to assess renal function and tissue damage. Cell mobilization was assessed by flow cytometry (FCM). RESULTS Mice pretreated with G-CSF/AMD3100 exhibited longer survival and lower serum creatinine and blood urea nitrogen (BUN) levels than mice treated with only G-CSF or saline. Combinatorial G-CSF/AMD3100 treatment attenuated tissue injury and cell death, enhanced cell regeneration, and mobilized a higher number of stem cells in the peripheral blood than G-CSF or saline treatment. Furthermore, the mRNA expression of proinflammatory factors was lower, whereas that of anti-inflammatory factors was higher, in the G-CSF/AMD3100 group than in the G-CSF or saline group (all P < 0.05). CONCLUSIONS These results suggest that combinatorial G-CSF/AMD3100 therapy mobilizes BMSCs to accelerate improvements in renal functions and prevent cisplatin-induced renal tubular injury. This combinatorial therapy may represent a new therapeutic option for the treatment of AKI and should be further investigated in the future.
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Affiliation(s)
- Zhi Chen
- Department of Geriatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Xiang Ren
- Department of Urology, Third Hospital of Shanxi Medical University, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Taiyuan, 030032, China.,Tongji Shanxi Hospital, Tongji Medical College, Huazhong University of Science and Technology, Taiyuan, 030032, China
| | - Ruimin Ren
- Department of Urology, Third Hospital of Shanxi Medical University, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Taiyuan, 030032, China.,Tongji Shanxi Hospital, Tongji Medical College, Huazhong University of Science and Technology, Taiyuan, 030032, China
| | - Yonghong Wang
- Tongji Shanxi Hospital, Tongji Medical College, Huazhong University of Science and Technology, Taiyuan, 030032, China.,Department of Neurosurgery, Third Hospital of Shanxi Medical University, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Taiyuan, 030032, China
| | - Jiwen Shang
- Tongji Shanxi Hospital, Tongji Medical College, Huazhong University of Science and Technology, Taiyuan, 030032, China. .,Department of Ambulatory Surgery, Third Hospital of Shanxi Medical University, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, No. 99 Longcheng Street, Taiyuan, 030032, Shanxi, China.
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9134
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Cinquetti M, Biasin M, Ventimiglia M, Balanzoni L, Signorelli D, Pietrobelli A. Functional gastrointestinal disorders, lifestyle habits, and smartphone addiction in adolescents. Pediatr Med Chir 2021; 43. [PMID: 33759482 DOI: 10.4081/pmc.2021.238] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Accepted: 03/03/2021] [Indexed: 11/22/2022] Open
Abstract
We performed a cross-sectional study. In spring 2019, 1,594 students (mean age 12.87 years) completed a questionnaire on gastrointestinal symptoms, smartphone use, Quality of Life (QoL), dietary habits, and physical activity. Based on the Rome IV criteria, 30.9% of participants met the symptom-based criteria for FGIDs and 8.9% experienced ≥2 disorders simultaneously. Well-being was less frequently reported by children with FGIDs than others (29.0% vs. 48.2%; p < 0.001). Participants addicted to smartphones reported low than others well-being (18.0% vs. 25.8%; p < 0.001), they also showed higher prevalence of FGIDs [Odds Ratio (OR), 1.98; 95% Confidence Interval (CI), 1.47-2.68; p < 0.001]. Among dietary habits, skipping breakfast (OR, 1.50; 95% CI, 1.09-2.05; p = 0.01) and low fruit consumption (OR, 1.66; 95% CI, 1.172.36; p = 0.005) were more frequent in participants with FGIDs. FGIDs are common in pediatric populations. FGIDs have an impact on QoL. Some dietary habits and physical activity are associated with these disorders. Smartphone addiction was found to be associated with FGIDs.
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Affiliation(s)
- Mauro Cinquetti
- Maternal and Child Department, Azienda ULSS 9 Scaligera, Verona.
| | - Marco Biasin
- Department of Surgical Sciences, Dentistry, Gynecology and Pediatrics, University of Verona, Verona.
| | | | | | | | - Angelo Pietrobelli
- Department of Surgical Sciences, Dentistry, Gynecology and Pediatrics, University of Verona, Verona, Italy, and Pennington Biomedical Research Center, Baton Rouge, LA.
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9135
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Udhaya Kumar S, Saleem A, Thirumal Kumar D, Anu Preethi V, Younes S, Zayed H, Tayubi IA, George Priya Doss C. A systemic approach to explore the mechanisms of drug resistance and altered signaling cascades in extensively drug-resistant tuberculosis. Adv Protein Chem Struct Biol 2021; 127:343-364. [PMID: 34340773 DOI: 10.1016/bs.apcsb.2021.02.002] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND AND AIM The persistence of extensively drug-resistant (XDR) strains of Mycobacterium tuberculosis (MTB) continue to pose a significant challenge to the treatment and control of tuberculosis infections worldwide. XDR-MTB strains exhibit resistance against first-line anti-TB drugs, fluoroquinolones, and second-line injectable drugs. The mechanisms of drug resistance of MTB remains poorly understood. Our study aims at identifying the differentially expressed genes (DEGs), associated gene networks, and signaling cascades involved in rendering this pathogen resistant to multiple drugs, namely, isoniazid, rifampicin, and capreomycin. METHODS We used the microarray dataset GSE53843. The GEO2R tool was used to prioritize the most significant DEGs (top 250) of each drug exposure sample between XDR strains and non-resistant strains. The validation of the 250 DEGs was performed using volcano plots. Protein-protein interaction networks of the DEGs were created using STRING and Cytoscape tools, which helped decipher the relationship between these genes. The significant DEGs were functionally annotated using DAVID and ClueGO. The concomitant biological processes (BP) and molecular functions (MF) were represented as dot plots. RESULTS AND CONCLUSION We identified relevant molecular pathways and biological processes, such as cell wall biogenesis, lipid metabolic process, ion transport, phosphopantetheine binding, and triglyceride lipase activity. These processes indicated the involvement of multiple interconnected mechanisms in drug resistance. Our study highlighted the impact of cell wall permeability, with the dysregulation of the mur family of proteins, as essential factors in the inference of resistance. Additionally, upregulation of genes responsible for ion transport such as ctpF, arsC, and nark3, emphasizes the importance of transport channels and efflux pumps in potentially driving out stress-inducing compounds. This study investigated the upregulation of the Lip family of proteins, which play a crucial role in triglyceride lipase activity. Thereby illuminating the potential role of drug-induced dormancy and subsequent resistance in the mycobacterial strains. Multiple mechanisms such as carboxylic acid metabolic process, NAD biosynthetic process, triglyceride lipase activity, phosphopantetheine binding, organic acid biosynthetic process, and growth of symbiont in host cell were observed to partake in resistance of XDR-MTB. This study ultimately provides a platform for important mapping targets for potential therapeutics against XDR-MTB.
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Affiliation(s)
- S Udhaya Kumar
- School of Biosciences and Technology, Vellore Institute of Technology, Vellore, Tamil Nadu, India
| | - Aisha Saleem
- School of Biosciences and Technology, Vellore Institute of Technology, Vellore, Tamil Nadu, India
| | - D Thirumal Kumar
- Department of Bioinformatics, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Chennai, Tamil Nadu, India
| | - V Anu Preethi
- School of Computer Science and Engineering, Vellore Institute of Technology, Vellore, Tamil Nadu, India
| | - Salma Younes
- Translational Research Institute, Women's Wellness and Research Center, Hamad Medical Corporation, Doha, Qatar
| | - Hatem Zayed
- Department of Biomedical Sciences, College of Health and Sciences, QU Health, Qatar University, Doha, Qatar
| | - Iftikhar Aslam Tayubi
- Faculty of Computing and Information Technology, King Abdul-Aziz University, Rabigh, Saudi Arabia
| | - C George Priya Doss
- School of Biosciences and Technology, Vellore Institute of Technology, Vellore, Tamil Nadu, India.
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9136
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Wu W, Li L, Su X, Zhu Z, Lin X, Zhang J, Zhuang Z, Cai H, Huang W. Nuclear factor-kappaB regulates the transcription of NADPH oxidase 1 in human alveolar epithelial cells. BMC Pulm Med 2021; 21:98. [PMID: 33757467 PMCID: PMC7988993 DOI: 10.1186/s12890-021-01464-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2020] [Accepted: 03/08/2021] [Indexed: 11/27/2022] Open
Abstract
Objective Acute lung injury (ALI) is characterized by inflammation and oxidative stress. Nuclear factor-kappaB (NF-κB) mediates the expression of various inflammation-related genes, including the NADPH oxidase family. This study aimed to identify the potential regulatory role of NF-κB on NADPH oxidases in tumor necrosis factor-α (TNF-α)-induced oxidative stress in human alveolar epithelial cells. Methods A549 cells were treated with TNF-α for 24 h to establish ALI cell models. RT-PCR, western blot, assessment of oxidative stress, Alibaba 2.1 online analysis, electrophoretic mobility shift assays and luciferase reporter analysis were employed to identify the potential regulatory role of NF-κB on NADPH oxidases in TNF-α-induced oxidative stress in human alveolar epithelial cells. Results The expression of NF-κB/p65 was notably upregulated in TNF-α-stimulated A549 cells.
NF-κB knockdown by siRNA significantly inhibited the TNF-α-induced oxidative stress. Moreover, NF-κB/p65 siRNA could inhibit the activation of NOX1, NOX2 and NOX4 mRNA and protein expression in TNF-α-stimulated A549 cells. The next study demonstrated that NF-κB activated the transcription of NOX1 by binding to the -261 to -252 bp (NOX1/κB2, TAAAAATCCC) region of NOX1 promoter in TNF-α-stimulated A549 cells. Conclusion Our data demonstrated that NF-κB can aggravate TNF-α-induced ALI by regulating the oxidative stress response and the expression of NOX1, NOX2 and NOX4. Moreover, NF-κB could promote the NOX1 transcriptional activity via binding its promoter in TNF-α-stimulated A549 cells. Supplementary Information The online version contains supplementary material available at 10.1186/s12890-021-01464-z.
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Affiliation(s)
- Weijing Wu
- Department of Pulmonary and Critical Care Medicine, the Second Affiliated Hospital of Fujian Medical University, Respirology Medicine Centre of Fujian Province, Quanzhou, China
| | - Li Li
- Department of Infectious Disease, General Hospital of Southern Theater Command, PLA, Guangzhou, China
| | - Xiaoshan Su
- Department of Pulmonary and Critical Care Medicine, the Second Affiliated Hospital of Fujian Medical University, Respirology Medicine Centre of Fujian Province, Quanzhou, China
| | - Zhixing Zhu
- Department of Pulmonary and Critical Care Medicine, the Second Affiliated Hospital of Fujian Medical University, Respirology Medicine Centre of Fujian Province, Quanzhou, China
| | - Xiaoping Lin
- Department of Pulmonary and Critical Care Medicine, the Second Affiliated Hospital of Fujian Medical University, Respirology Medicine Centre of Fujian Province, Quanzhou, China
| | - Jiamin Zhang
- Department of Radiology, Quanzhou First Hospital Affiliated to Fujian Medical University, Quanzhou, China
| | - Zesen Zhuang
- Department of Medical Imaging, Quanzhou Jinjiang Anhai Hospital, Quanzhou, China
| | - Hongyi Cai
- Fujian Medical University, Fuzhou, China
| | - Wenjie Huang
- Department of Respiratory Medicine, General Hospital of Southern Theater Command,, PLA, Guangzhou, China.
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9137
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Zeng J, Deng Z, Zou Y, Liu C, Fu H, Gu Y, Chang H. Theaflavin alleviates oxidative injury and atherosclerosis progress via activating microRNA-24-mediated Nrf2/HO-1 signal. Phytother Res 2021; 35:3418-3427. [PMID: 33755271 DOI: 10.1002/ptr.7064] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [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: 09/29/2020] [Revised: 01/06/2021] [Accepted: 02/10/2021] [Indexed: 12/18/2022]
Abstract
Theaflavin (TF) in black tea has been shown to have significant antioxidant and anti-inflammatory capacity; however, the effects and the underlying mechanism of TF on atherosclerosis (AS) remain unclear. Herein, we investigated the effects and the potential mechanism of TF on AS progression in vivo and in vitro. ApoE-/- mice were administrated with high fat diet (HFD) or HFD + TF (5 or 10 mg, i.g.) for 12 weeks. The results indicated that TF administration effectively decreases the serum lipid levels and the production of MDA in HFD-fed mice. Meanwhile, TF promotes the activities of antioxidant enzymes (SOD, CAT, and GSH-Px) and inhibits the formation of atherosclerotic plaque and the process of histological alterations in the aorta. In vitro, TF pretreatment could protect against cholesterol-induced oxidative injuries in HUVEC cells, decreasing the level of ROS and MDA, maintaining the activities of antioxidant enzymes. Further study revealed that TF upregulates Nrf2/HO-1 signaling pathway in vascular endothelial cells. Moreover, TF increases the level of microRNA-24 (miR-24), and miR-24 inhibition markedly compromises TF-induced Nrf2 activation and protective effects. In conclusion, the present study indicated that theaflavins may achieve the anti-atherosclerotic effect via activating miR-24-mediated Nrf2/HO-1 signaling pathway.
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Affiliation(s)
- Jie Zeng
- College of Food Science, Southwest University, Chongqing, China
| | - Zhihui Deng
- College of Food Science, Southwest University, Chongqing, China
| | - Yixin Zou
- College of Food Science, Southwest University, Chongqing, China
| | - Chang Liu
- College of Food Science, Southwest University, Chongqing, China
| | - Hongjuan Fu
- College of Food Science, Southwest University, Chongqing, China
| | - Yi Gu
- College of Food Science, Southwest University, Chongqing, China
| | - Hui Chang
- College of Food Science, Southwest University, Chongqing, China
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9138
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Ngonghala CN, Goel P, Kutor D, Bhattacharyya S. Human choice to self-isolate in the face of the COVID-19 pandemic: A game dynamic modelling approach. J Theor Biol 2021; 521:110692. [PMID: 33771612 PMCID: PMC7986308 DOI: 10.1016/j.jtbi.2021.110692] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 03/14/2021] [Accepted: 03/17/2021] [Indexed: 02/08/2023]
Abstract
Non-pharmaceutical interventions (NPIs) involving social-isolation strategies such as self-quarantine (SQ) and social-distancing (SD) are useful in controlling the spread of infections that are transmitted through human-to–human contacts, e.g., respiratory diseases such as COVID-19. In the absence of a safe and effective cure or vaccine during the first ten months of the COVID-19 pandemic, countries around the world implemented these social-isolation strategies and other NPIs to reduce COVID-19 transmission. But, individual and public perception play a crucial role in the success of any social-isolation measure. Thus, in spite of governments’ initiatives to use NPIs to combat COVID-19 in many countries around the world, individual choices rendered social-isolation unsuccessful in some of these countries. This resulted in huge outbreaks that imposed a substantial morbidity, mortality, hospitalization, economic, etc., toll on human lives. In particular, human choices pose serious challenges to public health strategic decision-making in controlling the COVID-19 pandemic. To unravel the impact of this behavioral response to social-isolation on the burden of the COVID-19 pandemic, we develop a model framework that integrates COVID-19 transmission dynamics with a multi-strategy evolutionary game approach of individual decision-making. We use this integrated framework to characterize the evolution of human choices in social-isolation as the disease progresses and public health control measures such as mandatory lockdowns are implemented. Analysis of the model illustrates that SD plays a major role in reducing the burden of the disease compared to SQ. Parameter estimation using COVID-19 incidence data, as well as different lockdown data sets from India, and scenario analysis involving a combination of Voluntary-Mandatory implementation of SQ and SD shows that the effectiveness of this approach depends on the type of isolation, and the time and period of implementation of the selected isolation measure during the outbreak.
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Affiliation(s)
- Calistus N Ngonghala
- Department of Mathematics, University of Florida, Gainesville, FL 32611, USA; Emerging pathogens Institute, University of Florida, Gainesviille, FL 32610, USA
| | - Palak Goel
- Disease Modelling Lab, Department of Mathematics, School of Natural Sciences, Shiv Nadar University, UP 201314, India
| | - Daniel Kutor
- Department of Mathematics, University of Florida, Gainesville, FL 32611, USA
| | - Samit Bhattacharyya
- Disease Modelling Lab, Department of Mathematics, School of Natural Sciences, Shiv Nadar University, UP 201314, India.
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9139
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Maelle R, Jean-Philippe R, Jochen W, Geraldine P, Fabrice C, Christian P, Mathilde G, Slimane D, Serge B, Naji S, Cecile V, Stanislas R, Thomas M, Sami F, Manuel T, Marc G, Gwenaelle G. Gastrointestinal Metastases From Primary Renal Cell Cancer: A Single Center Review. Front Oncol 2021; 11:644301. [PMID: 33833995 PMCID: PMC8023271 DOI: 10.3389/fonc.2021.644301] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Accepted: 02/23/2021] [Indexed: 12/19/2022] Open
Abstract
Introduction: Digestive metastases (DMs) from renal cell cancer (RCC) are rare. Over the past decade, the overall survival of metastatic RCC (mRCC) has been improved by tyrosine kinase inhibitors (TKIs) and immune checkpoint inhibitors. The main objective of this study was to assess the incidence of metastases of the digestive tract in this new field of treatment. The secondary objectives were to evaluate the clinical characteristics, prognosis, treatments used for DMs, and median time between the diagnosis of RCC or mRCC and DMs. Materials and Methods: A retrospective analysis of data collected from all patients with mRCC between 2007 (the time of TKI was a standard of care) and 2019 was carried out at the Paoli-Calmettes Institute (Marseille, France). Computer research software using artificial intelligence (ConSoRe®) was used to identify patients and assess their characteristics. Results: Between January 2007 and December 2019, 11 out of 660 (1.6%) mRCC patients had metastases of the gastrointestinal tract. The median age was 62 years. Of the 11 patients, 81.8% experienced digestive bleeding or anemia. Only 2 patients were asymptomatic. The metastases were mainly duodenal (50%) and gastric (41.6%). The median time from cancer diagnosis and from metastatic disease to gastrointestinal metastasis was 4.3 years (3 months-19.2 years) and 2.25 years (0 days-10.2 years), respectively. Local treatment was performed in 38.5% of cases by endoscopy (60%), surgery (20%) and radiotherapy (40%) with success rates of 33, 100, and 50%, respectively. Etiological treatment was modified following the discovery of DM in 84.6% of the cases. The median survival was 1 year from the diagnosis of DM (13 days-9.4 years). Two patients were still alive 2.9 and 9.4 years after the diagnosis of DM. Conclusion: This is the largest monocentric retrospective analysis of DM in patients with RCC. It seems to be a rare and late event in the course of the disease. Local treatment combined with systemic treatment could improve survival. In the context of prolonged survival with the new based immunotherapy treatments in mRCC, we suggest that unexplained anemia or persistent digestive symptoms could be explored by endoscopy.
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Affiliation(s)
- Rony Maelle
- Paoli-Calmettes Institute, Department of Gastrointestinal Disease, Marseille, France
| | - Ratone Jean-Philippe
- Paoli-Calmettes Institute, Department of Gastrointestinal Disease, Marseille, France
| | - Walz Jochen
- Paoli-Calmettes Institute, Department of Urology, Marseille, France
| | - Pignot Geraldine
- Paoli-Calmettes Institute, Department of Urology, Marseille, France
| | - Caillol Fabrice
- Paoli-Calmettes Institute, Department of Gastrointestinal Disease, Marseille, France
| | - Pesenti Christian
- Paoli-Calmettes Institute, Department of Gastrointestinal Disease, Marseille, France
| | - Guerin Mathilde
- Paoli-Calmettes Institute, Department of Medical Oncology, Marseille, France
| | - Dermeche Slimane
- Paoli-Calmettes Institute, Department of Medical Oncology, Marseille, France
| | - Brunelle Serge
- Paoli-Calmettes Institute, Department of Radiology, Marseille, France
| | - Salem Naji
- Paoli-Calmettes Institute, Department of Radiotherapy, Marseille, France
| | - Vicier Cecile
- Paoli-Calmettes Institute, Department of Medical Oncology, Marseille, France
| | | | - Maubon Thomas
- Paoli-Calmettes Institute, Department of Urology, Marseille, France
| | - Fakhfakh Sami
- Paoli-Calmettes Institute, Department of Urology, Marseille, France
| | - Tejeda Manuel
- Paoli-Calmettes Institute, Department of Informatics, Marseille, France
| | - Giovannini Marc
- Paoli-Calmettes Institute, Department of Gastrointestinal Disease, Marseille, France
| | - Gravis Gwenaelle
- Paoli-Calmettes Institute, Department of Medical Oncology, Aix-Marseille University, Inserm, CNRS, CRCM, Marseille, France
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9140
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Xu T, Wang J, Hu B, Zhang G, Zhou W, Zheng M, Shen B, Sun B, Zhang Y, Chen Y, Yu J, Liang M, Pan J, Chen C, Chen H, Jiang M, Xu L, Qu J, Chen JF. Identification of the RNase-binding site of SARS-CoV-2 RNA for anchor primer-PCR detection of viral loading in 306 COVID-19 patients. Brief Bioinform 2021; 22:1215-1224. [PMID: 32935831 PMCID: PMC7543284 DOI: 10.1093/bib/bbaa193] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2020] [Revised: 07/24/2020] [Accepted: 07/28/2020] [Indexed: 01/08/2023] Open
Abstract
The pandemic of coronavirus disease 2019 (COVID-19) urgently calls for more sensitive molecular diagnosis to improve sensitivity of current viral nuclear acid detection. We have developed an anchor primer (AP)-based assay to improve viral RNA stability by bioinformatics identification of RNase-binding site of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) RNA and implementing AP dually targeting the N gene of SARS-CoV-2 RNA and RNase 1, 3, 6. The arbitrarily primed polymerase chain reaction (AP-PCR) improvement of viral RNA integrity was supported by (a) the AP increased resistance of the targeted gene (N gene) of SARS-CoV-2 RNA to RNase treatment; (b) the detection of SARS-CoV-2 RNA by AP-PCR with lower cycle threshold values (-2.7 cycles) compared to two commercially available assays; (c) improvement of the viral RNA stability of the ORF gene upon targeting of the N gene and RNase. Furthermore, the improved sensitivity by AP-PCR was demonstrated by detection of SARS-CoV-2 RNA in 70-80% of sputum, nasal, pharyngeal swabs and feces and 36% (4/11) of urine of the confirmed cases (n = 252), 7% convalescent cases (n = 54) and none of 300 negative cases. Lastly, AP-PCR analysis of 306 confirmed and convalescent cases revealed prolonged presence of viral loading for >20 days after the first positive diagnosis. Thus, the AP dually targeting SARS-CoV-2 RNA and RNase improves molecular detection by preserving SARS-CoV-2 RNA integrity and reveals the prolonged viral loading associated with older age and male gender in COVID-19 patients.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Jia Qu
- Corresponding authors: Jiang-Fan Chen, School of Optometry and Ophthalmology and Eye Hospital, Wenzhou Medical University, Wenzhou, China. Tel: +86-577-88067966; Fax: +86-577-88067966; E-mail: ; Jia Qu, School of Optometry and Ophthalmology and Eye Hospital, Wenzhou Medical University, Wenzhou, China. Tel: +86-577-88075566; Fax: +86-577-88075566; E-mail:
| | - Jiang-Fan Chen
- Corresponding authors: Jiang-Fan Chen, School of Optometry and Ophthalmology and Eye Hospital, Wenzhou Medical University, Wenzhou, China. Tel: +86-577-88067966; Fax: +86-577-88067966; E-mail: ; Jia Qu, School of Optometry and Ophthalmology and Eye Hospital, Wenzhou Medical University, Wenzhou, China. Tel: +86-577-88075566; Fax: +86-577-88075566; E-mail:
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9141
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Czeczko LEA, Ribas CAPM, Czeczko NG, Skare TL, Yamakawa CK, Gionedis G, Vasconcelos C, Bremer FP, Castoldi DF, Gasser M, Waaga-Gasser AM. ARE STEM CELL MARKER EXPRESSION AND CD133 ANALYSIS RELEVANT TO DIFFERENTIATE COLORECTAL CANCER? ACTA ACUST UNITED AC 2021; 33:e1568. [PMID: 33759958 PMCID: PMC7983529 DOI: 10.1590/0102-672020200004e1568] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Accepted: 10/10/2020] [Indexed: 11/22/2022]
Abstract
Background:
CD133 and AXL have been described as cancer stem cell markers, and c-MYC as a key regulatory cellular mechanism in colorectal cancer (CRC).
Aim: Evaluate the prognostic role of the biomarkers CD133, AXL and c-MYC and their association with clinicopathologic characteristics in colorectal adenocarcinomas and adenomas.
Methods:
A total of 156 patients with UICC stage I-IV adenocarcinomas (n=122) and adenomas (n=34) were analyzed. Tissue microarrays (TMA) from primary tumors and polyps for CD133, c-MYC and AXL expression were performed and analyzed for their significance with clinicopathologic characteristics.
Results:
Poorly differentiated adenocarcinomas and disease progression were independent risk factors for poor overall survival. The median overall survival time was 30 months. Positive CD133 expression (35.9% of all cases), particularly of right-sided CRCs (44.8% of the CD133+ cases), was negatively correlated with death in the univariate analysis, which did not reach significance in the multivariate analysis. c-MYC (15.4% of all cases) was predominantly expressed in advanced-stage patients with distant (non-pulmonary/non-hepatic) metastasis. AXL expression was found only occasionally, and predominantly dominated in adenomas, with less penetrance in high-grade dysplasia.
Conclusions:
CD133 expression was not associated with inferior overall survival in CRC. While AXL showed inconclusive results, c-MYC expression in primary CRCs was associated with distant metastasis.
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Affiliation(s)
| | | | - Nicolau Gregori Czeczko
- Mackenzie Evangelical Faculty of Paraná, Curitiba, PR, Brazil.,University Evangelical Mackenzie Hospital, Curitiba, PR, Brazil
| | | | | | | | | | - Fabiola Pabst Bremer
- Mackenzie Evangelical Faculty of Paraná, Curitiba, PR, Brazil.,University Evangelical Mackenzie Hospital, Curitiba, PR, Brazil
| | - Diogo Francesco Castoldi
- Mackenzie Evangelical Faculty of Paraná, Curitiba, PR, Brazil.,University Evangelical Mackenzie Hospital, Curitiba, PR, Brazil
| | - Martin Gasser
- Mackenzie Evangelical Faculty of Paraná, Curitiba, PR, Brazil
| | - Ana Maria Waaga-Gasser
- Renal Division, Brigham and Woman's Hospital, Harvard Medical School, Boston, MA, USA.,Mackenzie Evangelical Faculty of Paraná, Curitiba, PR, Brazil
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9142
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Schranz T, Klaus J, Kratzer W, Schmidberger J, Güthle M. A comparison of spleen size measured by ultrasound in a random population sample and a matched sample of patients at a university hospital, and the determination of normal values and influencing factors. Z Gastroenterol 2021; 59:438-445. [PMID: 33752244 DOI: 10.1055/a-1404-4097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
OBJECTIVES This study aimed to compare spleen sizes in a hospital and a population sample using ultrasound and define normal values and factors influencing spleen size. METHODS Both samples' spleen sizes (n = 1520) were measured using ultrasound under the same conditions. Blood counts and other laboratory parameters were determined under the same conditions in both samples. RESULTS In the hospital sample (n = 760), the mean spleen size was 114.7 mm, and in the population sample (n = 760), it was 99.1 mm. In both, spleen size in men was significantly higher than in women (p < 0.0001) and influenced by body height, weight, and BMI (body mass index) (p < 0.0001). In the hospital sample, there was a correlation with higher values for ALT (p = 0.0160), AST (p = 0.0394), AP (p = 0.0482), and ferritin (p = 0.0008) and lower values for HDL (p = 0.0091) and thrombocytes (p < 0.0001). In the multivariate analysis, higher values for AP (p = 0.0059) and lower values for hemoglobin (p = 0.0014) and thrombocytes (p = 0.0001) were found. Stratified for sex (men, women), spleen size increased with higher values for ALT (p = 0.0116, p = 0.0113), AST (p = 0.0014, p = 0.0113), and AP (p = 0.0001, p = 0.0012), and with lower values of hemoglobin (p = 0.0057, p = 0.0016), thrombocytes (p < 0.0001, p = 0.0003), and albumin (p = 0.0029, p = 0.0432). In women, there was a discordant correlation with red blood cells (p = 0.0005) and a concordant correlation with GGT (p = 0.0241), and in men discordant correlations with cholesterol (p = 0.0010) and HDL (p = 0.0404). CONCLUSIONS The already proven impact of anthropometric data on spleen size was confirmed. The role of laboratory values should be further analyzed.
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Affiliation(s)
| | - Jochen Klaus
- Klinik für Innere Medizin I, Universitätsklinikum Ulm, Ulm
| | | | | | - Melanie Güthle
- Klinik für Innere Medizin I, Universitätsklinikum Ulm, Ulm
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9143
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Abstract
The discovery of anti-podocyte antibodies in primary membranous nephropathy (MN) has revolutionized our approach toward the diagnosis and treatment of this disease. Evaluation of serum levels of anti-podocyte antibodies paved the way for non-invasive diagnosis and helped distinguish between primary and secondary MN although the relationship between anti-podocyte antibodies and cancer remains to be elucidated. Serum levels of anti-PLA2R antibodies directed against the major podocyte autoantigen are related to MN activity and the decrease in serum levels of anti-PLA2R antibodies in response to treatment (immunologic remission) also serves as an early indicator of the later putative proteinuric remission, enabling personalization of the treatment. The serum levels of anti-podocyte antibodies also enable the prediction of renal outcomes in terms of both remission and the risk of progression to end-stage renal disease. The positivity of anti-PLA2R antibodies before renal transplantation is associated with the risk of recurrence of MN. It remains to be established if all these relations observed in patients with anti-PLA2R antibodies are also valid for expanding spectrum of antibodies directed against recently discovered minor antigens (e.g., THSD7A, NELL-1, semaphorin 3B).
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Affiliation(s)
- Vladimir Tesar
- Department of Nephrology, 1st Faculty of Medicine, General University Hospital, Charles University, Prague, Czechia
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9144
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Wang Z, Wang X, Cheng F, Wen X, Feng S, Yu F, Tang H, Liu Z, Teng X. Rapamycin Inhibits Glioma Cells Growth and Promotes Autophagy by miR-26a-5p/DAPK1 Axis. Cancer Manag Res 2021; 13:2691-2700. [PMID: 33790644 PMCID: PMC7997605 DOI: 10.2147/cmar.s298468] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Accepted: 02/25/2021] [Indexed: 12/11/2022] Open
Abstract
Background Glioma is a common intracranial malignant tumor with high rates of invasiveness and mortality. This study aimed to investigate the mechanism of rapamycin in glioma. Methods U118-MG cells were treated with and without rapamycin in vivo and then collected for RNA sequencing. Differentially expressed miRNAs (DEMs) were screened and verified. MiR-26a-5p was selected for functional verification, and the target gene of miR-26a-5p was identified. The effects of miR-26a-5p on cell proliferation, cell cycle, apoptosis, and autophagy were also investigated. Results In total, 58 up-regulated and 41 down-regulated DEMs were identified between rapamycin-treated and untreated U118-MG cells. MiR-26-5p levels were up-regulated in U118-MG cells treated with 12.5 μM rapamycin, and death-associated protein kinase 1 (DAPK1) expression, a direct miR-26a-5p target gene, was down-regulated. Rapamycin substantially inhibited cell proliferation and cell percentage in the S phase and promoted cell apoptosis; miR-26a-5p inhibitor increased cell proliferation and cell cycle and decreased cell apoptosis; DAPK1 overexpression further induced cell proliferation, increased the cell number in the S phase, and inhibited apoptosis in glioma cells. Notably, rapamycin increased the autophagy-related Beclin1 protein expression levels and the LC3 II/I ratio. Conclusion Rapamycin exerts anti-tumor effects by promoting autophagy in glioma cells, which was dependent on the miR-26a-5p/DAPK1 pathway activation by rapamycin.
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Affiliation(s)
- Zheng Wang
- Department of Neurology, Hangzhou Seventh People's Hospital, Hangzhou, People's Republic of China
| | - Xiaoxi Wang
- Department of Pathology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, People's Republic of China
| | - Fei Cheng
- Department of Pathology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, People's Republic of China
| | - Xue Wen
- Department of Pathology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, People's Republic of China
| | - Shi Feng
- Department of Pathology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, People's Republic of China
| | - Fang Yu
- Department of Pathology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, People's Republic of China
| | - Hui Tang
- Department of Pathology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, People's Republic of China
| | - Zhengjin Liu
- Department of Pathology, Zhongshan Hospital, Xiamen University, Xiamen, People's Republic of China
| | - Xiaodong Teng
- Department of Pathology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, People's Republic of China
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9145
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Denys P, Miere A, Colantuono D, Jung C, Souied EH. Intravitreal injections during COVID-19 outbreak: Protective measures, total duration of care and perceived quality of care in a tertiary retina center. Eur J Ophthalmol 2021; 32:372-376. [PMID: 33752454 PMCID: PMC7992096 DOI: 10.1177/11206721211003488] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Purpose: To assess patient satisfaction regarding the sudden reorganization of care
during the COVID-19 pandemic in the outpatient intravitreal injection (IVI)
clinic. Methods: A survey of patients with ongoing IVIs for retinal diseases was carried out
between April 23rd and May 12th, 2020. We designed a questionnaire to assess
patient satisfaction concerning: personal protective equipment (PPE), social
distancing, the perceived quality of care, and the total time spent in the
department, using a Likert scale. We also collected the time spent per
patients in the outpatient IVI clinic. Results: A hundred and twenty-seven eyes of 108 patients were included. The mean time
spent in the IVI outpatient clinic was 31.87 +/− 16.61 min. In our survey,
99.1% of the patients were satisfied (highly satisfied or satisfied) with
the new type of care provided, 89.8% with the duration of care, and 93.5%
with the PPE. Satisfaction was associated with total time spent in hospital
(p = 0.005), with dissatisfied patients spending about
50% more time in the hospital than satisfied patients (43.91 min vs
30.50 min). Conclusion: Despite the crisis-related adjustment, our survey revealed high patient
satisfaction with PPE, quality of care, and total time spent in outpatient
IVI clinic.
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Affiliation(s)
- Paul Denys
- Department of Ophthalmology, Centre Hospitalier Intercommunal de Créteil, University Paris Est Créteil, Créteil, France
| | - Alexandra Miere
- Department of Ophthalmology, Centre Hospitalier Intercommunal de Créteil, University Paris Est Créteil, Créteil, France
| | - Donato Colantuono
- Department of Ophthalmology, Centre Hospitalier Intercommunal de Créteil, University Paris Est Créteil, Créteil, France
| | - Camille Jung
- Clinical Research Center, GRC Macula, and Biological Resources Center, Centre Hospitalier Intercommunal de Créteil, Créteil, France
| | - Eric H Souied
- Department of Ophthalmology, Centre Hospitalier Intercommunal de Créteil, University Paris Est Créteil, Créteil, France
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9146
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Zhai W, Luo Z, Zheng Y, Dong D, Wu E, Wang Z, Zhai J, Han Y, Liu H, Wang Y, Feng Y, Wang J, Ma Y. Moderate vs. mild cases of overseas-imported COVID-19 in Beijing: a retrospective cohort study. Sci Rep 2021; 11:6483. [PMID: 33753799 DOI: 10.1038/s41598-021-85869-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Accepted: 03/08/2021] [Indexed: 01/08/2023] Open
Abstract
This study compared the differences in the clinical manifestations, treatment courses and clinical turnover between mild and moderate coronavirus disease 2019 (COVID-19). Clinical data of the patients with imported COVID-19 admitted to Beijing Xiaotangshan Designated Hospital between March 15 and April 30, 2020, were retrospectively analysed. A total of 53 COVID-19 patients were included, with 21 mild and 32 moderate cases. Compared with the mild group, the moderate group showed significant differences in breathing frequency, lymphocyte count, neutrophil percentage, neutrophil/lymphocyte ratio, procalcitonin, C-reactive protein, and dynamic erythrocyte sedimentation rate. In the moderate group, 87.5% exhibited ground-glass opacities, 14% exhibited consolidative opacities, 53.1% exhibited local lesions and 68.8% exhibited unilateral lesions. The proportion of patients who received antiviral or antibiotic treatment in the moderate group was higher than that in the mild group, and the number of cases that progressed to severe disease in the moderate group was also significantly higher (18.7% vs. 0%, p = 0.035). Compared with patients with mild COVID-19, those with moderate COVID-19 exhibited more noticeable inflammatory reactions, more severe pulmonary imaging manifestations and earlier expression of protective antibodies. The overall turnover of the moderate cases was poorer than that of the mild cases.
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9147
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Zhao L, Li S, Zhang C, Tian J, Lu A, Bai R, An J, Greiser A, Huang J, Ma X. Cardiovascular magnetic resonance-determined left ventricular myocardium impairment is associated with C-reactive protein and ST2 in patients with paroxysmal atrial fibrillation. J Cardiovasc Magn Reson 2021; 23:30. [PMID: 33745456 PMCID: PMC7983280 DOI: 10.1186/s12968-021-00732-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Accepted: 02/08/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Myocardial strain assessed with cardiovascular magnetic resonance (CMR) feature tracking can detect early left ventricular (LV) myocardial deformation quantitatively in patients with a variety of cardiovascular diseases, but this method has not yet been applied to quantify myocardial strain in patients with atrial fibrillation (AF) and no coexistent cardiovascular disease, i.e., the early stage of AF. This study sought to compare LV myocardial strain and T1 mapping indices in AF patients and healthy subjects, and to investigate the associations of a portfolio of inflammation, cardiac remodeling and fibrosis biomarkers with LV myocardial strain and T1 mapping indices in AF patients with no coexistent cardiovascular disease. METHODS The study consisted of 80 patients with paroxysmal AF patients and no coexistent cardiovascular disease and 20 age- and sex-matched healthy controls. Left atrial volume (LAV), LV myocardial strain and native T1 were assessed with CMR, and compared between the AF patients and healthy subjects. Biomarkers of C-reactive protein (CRP), transforming growth factor beta-1 (TGF-β1), collagen III N-terminal propeptide (PIIINP), and soluble suppression of tumorigenicity 2 (sST2) were obtained with blood tests, and compared between the AF patients and healthy controls. Associations of these biomarkers with those CMR-measured parameters were analyzed for the AF patients. RESULTS For the CMR-measured parameters, the AF patients showed significantly larger LAV and LV end-systolic volume, and higher native T1 than the healthy controls (max P = 0.027). The absolute values of the LV peak systolic circumferential strain and its rate as well as the LV diastolic circumferential strain rate were all significantly reduced in the AF patients (all P < 0.001). For the biomarkers, the AF patients showed significantly larger CRP (an inflammation biomarker) and sST2 (a myocardium stiffness biomarker) than the controls (max P = 0.007). In the AF patients, the five CMR-measured parameters of LAV, three LV strain indices and native T1 were all significantly associated with these two biomarkers of CRP and sST2 (max P = 0.020). CONCLUSIONS In patients with paroxysmal AF and no coexistent cardiovascular disease, LAV enlargement and LV myocardium abnormalities were detected by CMR, and these abnormalities were associated with biomarkers that reflect inflammation and myocardial stiffness.
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Affiliation(s)
- Lei Zhao
- Department of Radiology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Songnan Li
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Chen Zhang
- Department of Radiology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Jie Tian
- Department of Radiology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Aijia Lu
- Department of Radiology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Rong Bai
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Jing An
- Siemens Shenzhen Magnetic Resonance Ltd, Shenzhen, China
| | | | - Jie Huang
- Department of Radiology, Michigan State University, East Lansing, USA
| | - Xiaohai Ma
- Department of Intervention, Beijing Anzhen Hospital, Capital Medical University, Beijing, China.
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9148
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Perpiñan C, Bertran L, Terra X, Aguilar C, Lopez-Dupla M, Alibalic A, Riesco D, Camaron J, Perrone F, Rull A, Reverté L, Yeregui E, Marti A, Vidal F, Auguet T. Predictive Biomarkers of COVID-19 Severity in SARS-CoV-2 Infected Patients with Obesity and Metabolic Syndrome. J Pers Med 2021; 11:227. [PMID: 33809913 DOI: 10.3390/jpm11030227] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [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: 01/12/2021] [Revised: 03/08/2021] [Accepted: 03/17/2021] [Indexed: 01/08/2023] Open
Abstract
In SARS-CoV-2-infected patients, obesity, hypertension, and diabetes are dangerous factors that may result in death. Priority in detection and specific therapies for these patients are necessary. We wanted to investigate the impact of obesity and metabolic syndrome (MS) on the clinical course of COVID-19 and whether prognostic biomarkers described are useful to predict the evolution of COVID-19 in patients with obesity or MS. This prospective cohort study included 303 patients hospitalized for COVID-19. Participants were first classified according to the presence of obesity; then, they were classified according to the presence of MS. Clinical, radiologic, and analytical parameters were collected. We reported that patients with obesity presented moderate COVID-19 symptoms and pneumonia, bilateral pulmonary infiltrates, and needed tocilizumab more frequently. Meanwhile, patients with MS presented severe pneumonia and respiratory failure more frequently, they have a higher mortality rate, and they also showed higher creatinine and troponin levels. The main findings of this study are that IL-6 is a potential predictor of COVID-19 severity in patients with obesity, while troponin and LDH can be used as predictive biomarkers of COVID-19 severity in MS patients. Therefore, treatment for COVID-19 in patients with obesity or MS should probably be intensified and personalized.
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9149
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9150
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Thiruthaneeswaran N, Bibby BAS, Yang L, Hoskin PJ, Bristow RG, Choudhury A, West C. Lost in application: Measuring hypoxia for radiotherapy optimisation. Eur J Cancer 2021; 148:260-276. [PMID: 33756422 DOI: 10.1016/j.ejca.2021.01.039] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Revised: 01/21/2021] [Accepted: 01/28/2021] [Indexed: 12/15/2022]
Abstract
The history of radiotherapy is intertwined with research on hypoxia. There is level 1a evidence that giving hypoxia-targeting treatments with radiotherapy improves locoregional control and survival without compromising late side-effects. Despite coming in and out of vogue over decades, there is now an established role for hypoxia in driving molecular alterations promoting tumour progression and metastases. While tumour genomic complexity and immune profiling offer promise, there is a stronger evidence base for personalising radiotherapy based on hypoxia status. Despite this, there is only one phase III trial targeting hypoxia modification with full transcriptomic data available. There are no biomarkers in routine use for patients undergoing radiotherapy to aid management decisions, and a roadmap is needed to ensure consistency and provide a benchmark for progression to application. Gene expression signatures address past limitations of hypoxia biomarkers and could progress biologically optimised radiotherapy. Here, we review recent developments in generating hypoxia gene expression signatures and highlight progress addressing the challenges that must be overcome to pave the way for their clinical application.
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Affiliation(s)
- Niluja Thiruthaneeswaran
- Division of Cancer Sciences, The University of Manchester, Manchester, UK; Sydney Medical School, The University of Sydney, Sydney, New South Wales, Australia.
| | - Becky A S Bibby
- Division of Cancer Sciences, The University of Manchester, Manchester, UK
| | - Lingjang Yang
- Division of Cancer Sciences, The University of Manchester, Manchester, UK
| | - Peter J Hoskin
- Division of Cancer Sciences, The University of Manchester, Manchester, UK; Mount Vernon Cancer Centre, Northwood, UK
| | - Robert G Bristow
- Division of Cancer Sciences, The University of Manchester, Manchester, UK; CRUK Manchester Institute and Manchester Cancer Research Centre, Manchester, UK
| | - Ananya Choudhury
- Division of Cancer Sciences, The University of Manchester, Christie Hospital NHS Foundation Trust, Manchester, UK
| | - Catharine West
- Division of Cancer Sciences, The University of Manchester, Christie Hospital NHS Foundation Trust, Manchester, UK
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