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Wang L, Wang L, Wang N, Song C, Wen C, Yan C, Song S. Fucoidan alleviates the inhibition of protein digestion by chitosan and its oligosaccharides. Int J Biol Macromol 2024:132072. [PMID: 38705339 DOI: 10.1016/j.ijbiomac.2024.132072] [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: 12/08/2023] [Revised: 02/13/2024] [Accepted: 05/02/2024] [Indexed: 05/07/2024]
Abstract
Chitosan (CTS) and chitosan oligosaccharides (COS) have been widely applied in food industry due to their bioactivities and functions. However, CTS and COS with positive charges could interact with proteins, such as whey protein isolate (WPI), influencing their digestion. Interaction among CTS/COS, FUC, and WPI/enzymes was studied by spectroscopy, chromatography, and chemical methods in order to reveal the role of FUC in relieving the inhibition of protein digestibility by CTS/COS and demonstrate the action mechanisms. As shown by the results, the addition of FUC increased degree of hydrolysis (DH) and free protein in the mixture of CTS and WPI to 3.1-fold and 1.8-fold, respectively, while raise DH value and free protein in the mixture of COS and WPI to 6.7-fold and 1.2-fold, respectively. The interaction between amino, carboxyl, sulfate, and hydroxyl groups from carbohydrates and protein could be observed, and notably, FUC could interact with CTS/COS preferentially to prevent CTS/COS from combining with WPI. In addition, the addition of FUC could also relieve the combination of CTS to trypsin, increasing the fluorescence intensity and concentration of trypsin by 83.3 % and 4.8 %, respectively. Thus, the present study demonstrated that FUC could alleviate the inhibitory effect of CTS/COS on protein digestion.
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Affiliation(s)
- Linlin Wang
- SKL of Marine Food Processing & Safety Control, National Engineering Research Center of Seafood, Collaborative Innovation Center of Seafood Deep Processing, National & Local Joint Engineering Laboratory for Marine Bioactive Polysaccharide Development and Application, Liaoning Key Laboratory of Food Nutrition and Health, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
| | - Lilong Wang
- SKL of Marine Food Processing & Safety Control, National Engineering Research Center of Seafood, Collaborative Innovation Center of Seafood Deep Processing, National & Local Joint Engineering Laboratory for Marine Bioactive Polysaccharide Development and Application, Liaoning Key Laboratory of Food Nutrition and Health, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
| | - Nan Wang
- SKL of Marine Food Processing & Safety Control, National Engineering Research Center of Seafood, Collaborative Innovation Center of Seafood Deep Processing, National & Local Joint Engineering Laboratory for Marine Bioactive Polysaccharide Development and Application, Liaoning Key Laboratory of Food Nutrition and Health, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
| | - Chen Song
- SKL of Marine Food Processing & Safety Control, National Engineering Research Center of Seafood, Collaborative Innovation Center of Seafood Deep Processing, National & Local Joint Engineering Laboratory for Marine Bioactive Polysaccharide Development and Application, Liaoning Key Laboratory of Food Nutrition and Health, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
| | - Chengrong Wen
- SKL of Marine Food Processing & Safety Control, National Engineering Research Center of Seafood, Collaborative Innovation Center of Seafood Deep Processing, National & Local Joint Engineering Laboratory for Marine Bioactive Polysaccharide Development and Application, Liaoning Key Laboratory of Food Nutrition and Health, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
| | - Chunhong Yan
- SKL of Marine Food Processing & Safety Control, National Engineering Research Center of Seafood, Collaborative Innovation Center of Seafood Deep Processing, National & Local Joint Engineering Laboratory for Marine Bioactive Polysaccharide Development and Application, Liaoning Key Laboratory of Food Nutrition and Health, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
| | - Shuang Song
- SKL of Marine Food Processing & Safety Control, National Engineering Research Center of Seafood, Collaborative Innovation Center of Seafood Deep Processing, National & Local Joint Engineering Laboratory for Marine Bioactive Polysaccharide Development and Application, Liaoning Key Laboratory of Food Nutrition and Health, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China.
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2
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Yan C, Zhou L, Li J, Zhang G, Yang C, Gu J, Lu X, Zhang L, Zeng M. Improved small vessel visibility in diabetic foot arteriography using dual-energy CT. Clin Radiol 2024; 79:e424-e431. [PMID: 38101997 DOI: 10.1016/j.crad.2023.11.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 11/07/2023] [Accepted: 11/14/2023] [Indexed: 12/17/2023]
Abstract
AIM To test the feasibility and performance of dual-energy computed tomography (DECT) in foot arteriography of diabetic patients, where contrast medium is largely reduced within the small vessels. MATERIALS AND METHODS A total of 50 diabetic patients were enrolled prospectively, where DECT was acquired immediately after the CT angiography (CTA, group A) of the lower extremity. Two images were derived from the DECT data, one optimal virtual monochromatic image (VMI, group B) and one fusion image (group C), both of which were compared against the CTA image for visualising the foot arteries. The contrast-to-noise ratio (CNR) and signal-to-noise ratio (SNR) were evaluated. The arterial course and contrast were graded each using a five-point scale. The clarity of small vessel depiction was quantified by comparing the number of plantar metatarsal arteries found in the maximum intensity projection image. RESULTS The median CNRs and SNRs obtained in group B were approximately 45% and 20% higher than those in groups A and C, respectively (p<0.05). Group B also received higher subjective scores on the posterior tibial artery and the foot arteries (all >3) than groups A and C. The number of visible branches of the plantar metatarsal arteries was found to be substantially higher (p<0.05) in group B (median=6) than in groups A (median=2) and C (median=4). CONCLUSION DECT was found to be superior to conventional CTA in foot arteriography, and beyond the lower extremity, it might be a general favourable solution for imaging regions with small vessels and reduced contrast medium.
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Affiliation(s)
- C Yan
- Department of Radiology, Zhongshan Hospital, Fudan University, Shanghai, China; Shanghai Institute of Medical Imaging, Shanghai, China
| | - L Zhou
- Department of Radiology, Zhongshan Hospital, Fudan University, Shanghai, China; Shanghai Institute of Medical Imaging, Shanghai, China
| | - J Li
- United Imaging Healthcare, Shanghai, China
| | - G Zhang
- United Imaging Healthcare, Shanghai, China
| | - C Yang
- Department of Radiology, Zhongshan Hospital, Fudan University, Shanghai, China; Shanghai Institute of Medical Imaging, Shanghai, China
| | - J Gu
- Department of Radiology, Zhongshan Hospital, Fudan University, Shanghai, China; Shanghai Institute of Medical Imaging, Shanghai, China
| | - X Lu
- Department of Radiology, Zhongshan Hospital, Fudan University, Shanghai, China; Shanghai Institute of Medical Imaging, Shanghai, China
| | - L Zhang
- Department of Radiology, Zhongshan Hospital, Fudan University, Shanghai, China; Shanghai Institute of Medical Imaging, Shanghai, China
| | - M Zeng
- Department of Radiology, Zhongshan Hospital, Fudan University, Shanghai, China; Shanghai Institute of Medical Imaging, Shanghai, China.
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Sun X, Yan C, Fu Y, Ai C, Bi J, Lin W, Song S. Orally administrated fucoidan and its low-molecular-weight derivatives are absorbed differentially to alleviate coagulation and thrombosis. Int J Biol Macromol 2024; 255:128092. [PMID: 37979755 DOI: 10.1016/j.ijbiomac.2023.128092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 11/01/2023] [Accepted: 11/12/2023] [Indexed: 11/20/2023]
Abstract
Thrombosis is a serious threat to human health and life. Fucoidan, a sulfated polysaccharide from brown algae, could prevent coagulation and thrombus after intravenous administration. However, more efforts are still needed to develop its oral agent. In the present study, the absorption and excretion of fucoidan (90.8 kDa) and its degradation products, Dfuc1 (19.2 kDa) and Dfuc2 (5.5 kDa), were determined by HPLC-MS/MS after acid degradation and 1-phenyl-3-methyl-5-pyrazolone derivatization, and their anticoagulation and antithrombotic activities were evaluated in vivo after oral administration. Results showed that the maximum concentrations of fucoidan, Dfuc1 and Dfuc2 in rat plasma all achieved at 2 h after oral administration (150 mg/kg), and they were 41.1 ± 10.6 μg/mL, 45.3 ± 18.5 μg/mL and 59.3 ± 13.7 μg/mL, respectively. In addition, fucoidan, Dfuc1 and Dfuc2 could all prolong the activated partial thromboplastin time in vivo from 23.7 ± 2.7 s (blank control) to 25.1 ± 2.6 s, 27.1 ± 1.7 s and 29.4 ± 3.6 s, respectively. Moreover, fucoidan and its degradation products showed similar antithrombotic effect in carrageenan-induced thrombosis mice, and untargeted metabolomics analysis revealed that they all markedly regulated the carrageenan-induced metabolite disorders, especially the arachidonic acid metabolism. Thus, the degradation products of fucoidan with lower molecular weights are more attractive for the development of oral antithrombotic agents.
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Affiliation(s)
- Xiaona Sun
- School of Food Science and Technology, National Engineering Research Center of Seafood, Liaoning Key Laboratory of Food Nutrition and Health, Dalian Polytechnic University, Dalian 116034, PR China
| | - Chunhong Yan
- School of Food Science and Technology, National Engineering Research Center of Seafood, Liaoning Key Laboratory of Food Nutrition and Health, Dalian Polytechnic University, Dalian 116034, PR China; SKL of Marine Food Processing & Safety Control, National & Local Joint Engineering Laboratory for Marine Bioactive Polysaccharide Development and Application, Dalian Polytechnic University, Dalian 116034, PR China
| | - Yinghuan Fu
- School of Food Science and Technology, National Engineering Research Center of Seafood, Liaoning Key Laboratory of Food Nutrition and Health, Dalian Polytechnic University, Dalian 116034, PR China; SKL of Marine Food Processing & Safety Control, National & Local Joint Engineering Laboratory for Marine Bioactive Polysaccharide Development and Application, Dalian Polytechnic University, Dalian 116034, PR China
| | - Chunqing Ai
- School of Food Science and Technology, National Engineering Research Center of Seafood, Liaoning Key Laboratory of Food Nutrition and Health, Dalian Polytechnic University, Dalian 116034, PR China; SKL of Marine Food Processing & Safety Control, National & Local Joint Engineering Laboratory for Marine Bioactive Polysaccharide Development and Application, Dalian Polytechnic University, Dalian 116034, PR China
| | - Jingran Bi
- School of Food Science and Technology, National Engineering Research Center of Seafood, Liaoning Key Laboratory of Food Nutrition and Health, Dalian Polytechnic University, Dalian 116034, PR China
| | - Wei Lin
- School of Food Science and Technology, National Engineering Research Center of Seafood, Liaoning Key Laboratory of Food Nutrition and Health, Dalian Polytechnic University, Dalian 116034, PR China
| | - Shuang Song
- School of Food Science and Technology, National Engineering Research Center of Seafood, Liaoning Key Laboratory of Food Nutrition and Health, Dalian Polytechnic University, Dalian 116034, PR China; SKL of Marine Food Processing & Safety Control, National & Local Joint Engineering Laboratory for Marine Bioactive Polysaccharide Development and Application, Dalian Polytechnic University, Dalian 116034, PR China.
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4
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Wang L, Wang L, Cao C, Zhao J, Song C, Bao Z, Yan C, Song S. Chitosan and its oligosaccharide accelerate colonic motility and reverse serum metabolites in rats after excessive protein consumption. Int J Biol Macromol 2023; 253:127072. [PMID: 37774814 DOI: 10.1016/j.ijbiomac.2023.127072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 09/20/2023] [Accepted: 09/23/2023] [Indexed: 10/01/2023]
Abstract
Excessive protein consumption (EPC) could increase the gastrointestinal burden and impair gut motility. The present study was designed to explore the improvement of chitosan (CTS) and chitosan oligosaccharide (COS) on colonic motility and serum metabolites in rats after EPC. The results of in vivo experiments fully proved that CTS and COS could improve gut motility and reverse the serum metabolites in rats as indicated by LC-MS/MS analysis, and the COS group even showed a better effect than the CTS group. Furthermore, short-chain fatty acids (SCFAs), which could promote gut motility, were also increased to alleviate EPC-induced constipation after supplementation with CTS or COS. In addition, CTS and COS could decrease the concentration of ammonia in serum and down-regulate the levels of H2S and indole. In summary, the present study revealed that CTS and COS could produce SCFAs, improve the colonic motility in rats, reverse the levels of valine, adenosine, cysteine, 1-methyladenosine, indole, and uracil, and enhance aminoacyl-tRNA biosynthesis and valine, leucine and isoleucine degradation. The present study provides novel insights into the potential roles of CTS and COS in alleviating the adverse effects of EPC.
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Affiliation(s)
- Linlin Wang
- National Engineering Research Center of Seafood, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, PR China
| | - Lilong Wang
- National Engineering Research Center of Seafood, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, PR China
| | - Cui Cao
- National Engineering Research Center of Seafood, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, PR China; Shaanxi Natural Carbohydrate Resource Engineering Research Center, College of Food Science and Technology, Northwest University, Xi'an 710069, PR China
| | - Jun Zhao
- National Engineering Research Center of Seafood, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, PR China
| | - Chen Song
- National Engineering Research Center of Seafood, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, PR China
| | - Zhijie Bao
- National Engineering Research Center of Seafood, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, PR China
| | - Chunhong Yan
- National Engineering Research Center of Seafood, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, PR China
| | - Shuang Song
- National Engineering Research Center of Seafood, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, PR China.
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Zhang Y, Song H, Liu Z, Ai C, Yan C, Dong X, Song S. Interaction between a Sulfated Polysaccharide from Sea Cucumber and Gut Microbiota Influences the Fat Metabolism in Rats. Foods 2023; 12:4476. [PMID: 38137281 PMCID: PMC10743057 DOI: 10.3390/foods12244476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 12/07/2023] [Accepted: 12/11/2023] [Indexed: 12/24/2023] Open
Abstract
Due to its significant physiological effects, a sulfated polysaccharide has been considered an important nutrient of sea cucumber, but its metabolism in vivo is still unclear. The present study investigated the metabolism of a sea cucumber sulfated polysaccharide (SCSP) in rats and its influence on the metabolite profiles. The quantification by HPLC-MS/MS revealed that the blood level of SCSP achieved a maximum of 54.0 ± 4.8 μg/mL at 2 h after gavage, almost no SCSP was excreted through urine, and 55.4 ± 29.8% of SCSP was eliminated through feces within 24 h. These results prove the utilization of SCSP by gut microbiota, and a further microbiota sequencing analysis indicated that the SCSP utilization in the gut was positively correlated with Muribaculaceae and Clostridia_UCG-014. In addition, the non-targeted metabolomic analysis demonstrated the significant effects of SCSP administration on the metabolite profiles of blood, urine, and feces. It is worth noting that the SCSP supplement decreased palmitic acid, stearic acid, and oleic acid in blood and urine while increasing stearic acid, linoleic acid, and γ-linolenic acid in feces, suggesting the inhibition of fat absorption and the enhancement of fat excretion by SCSP, respectively. The present study shed light on the metabolism in vivo and the influence on the fat metabolism of SCSP.
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Affiliation(s)
| | | | | | | | | | | | - Shuang Song
- Liaoning Key Laboratory of Food Nutrition and Health, Collaborative Innovation Center of Seafood Deep Processing, National Engineering Research Center of Seafood, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China; (Y.Z.); (H.S.); (Z.L.); (C.A.); (C.Y.); (X.D.)
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6
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Yao HW, Zhang P, Yan C, Li ZY, Zhang ZT. [Promote the high-quality development of gastrointestinal surgery with technological concept innovation]. Zhonghua Wai Ke Za Zhi 2023; 62:10-15. [PMID: 38044601 DOI: 10.3760/cma.j.cn112139-20231113-00222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 12/05/2023]
Abstract
In the past 30 years, gastrointestinal surgery in China has made significant progress, which is reflected in the gradual standardization of clinical diagnosis and treatment, significant improvement in surgical quality, improvement in short-term and long-term postoperative outcomes, and continuous development of high-quality clinical research. At present, the spectrum of disease in gastrointestinal surgery has changed from traditional benign diseases to malignant diseases represented by gastric cancer and colorectal cancer, metabolic diseases represented by obesity and diabetes, and immune diseases represented by inflammatory bowel disease. It is necessary to carry out full-cycle management for patients. In the new era full of opportunities and challenges, surgeons must be driven by innovation in surgical technology, guided by high-quality clinical research and guaranteed by standardized diagnosis and treatment of diseases, to continue to promote the high-quality development of gastrointestinal surgery in China.
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Affiliation(s)
- H W Yao
- Department of General Surgery, Beijing Friendship Hospital, Capital Medical University, National Clinical Research Center for Digestive Disease, Beijing 100050, China
| | - P Zhang
- Department of General Surgery, Beijing Friendship Hospital, Capital Medical University, National Clinical Research Center for Digestive Disease, Beijing 100050, China
| | - C Yan
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Gastrointestinal Cancer Center, Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - Z Y Li
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Gastrointestinal Cancer Center, Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - Z T Zhang
- Department of General Surgery, Beijing Friendship Hospital, Capital Medical University, National Clinical Research Center for Digestive Disease, Beijing 100050, China
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7
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Jin X, Wang J, Li Q, Zhuang H, Yang J, Lin Z, Lin T, Lv Z, Shen L, Yan C, Zheng J, Zhu J, Gong Z, Wang C, Gao K. Erratum: SPOP targets oncogenic protein ZBTB3 for destruction to suppress endometrial cancer. Am J Cancer Res 2023; 13:5748-5749. [PMID: 38058828 PMCID: PMC10695809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Accepted: 10/28/2023] [Indexed: 12/08/2023] Open
Abstract
[This corrects the article on p. 2797 in vol. 9, PMID: 31911863.].
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Affiliation(s)
- Xiaofeng Jin
- Department of Biochemistry and Molecular Biology, Zhejiang Key Laboratory of Pathophysiology, Medical School of Ningbo UniversityNingbo 315211, Zhejiang, China
| | - Jian Wang
- Department of Biochemistry and Molecular Biology, Zhejiang Key Laboratory of Pathophysiology, Medical School of Ningbo UniversityNingbo 315211, Zhejiang, China
| | - Qian Li
- Department of Biochemistry and Molecular Biology, Zhejiang Key Laboratory of Pathophysiology, Medical School of Ningbo UniversityNingbo 315211, Zhejiang, China
| | - Hui Zhuang
- Department of Biochemistry and Molecular Biology, Zhejiang Key Laboratory of Pathophysiology, Medical School of Ningbo UniversityNingbo 315211, Zhejiang, China
| | - Jianye Yang
- Department of Biochemistry and Molecular Biology, Zhejiang Key Laboratory of Pathophysiology, Medical School of Ningbo UniversityNingbo 315211, Zhejiang, China
| | - Zihan Lin
- Department of Biochemistry and Molecular Biology, Zhejiang Key Laboratory of Pathophysiology, Medical School of Ningbo UniversityNingbo 315211, Zhejiang, China
| | - Ting Lin
- Department of Biochemistry and Molecular Biology, Zhejiang Key Laboratory of Pathophysiology, Medical School of Ningbo UniversityNingbo 315211, Zhejiang, China
| | - Zeheng Lv
- Clinical and Translational Research Center, Shanghai First Maternity and Infant Hospital, Tongji University School of MedicineShanghai 200090, China
| | - Liliang Shen
- Department of Urology, Yinzhou Renmin Hospital Affiliated to Medical School of Ningbo UniversityNingbo 315040, Zhejiang, China
| | - Chunhong Yan
- Department of Obstetrics and Gynecology, Yinzhou Renmin Hospital Affiliated to Medical School of Ningbo UniversityNingbo 315040, Zhejiang, China
| | - Jingfei Zheng
- Department of Obstetrics and Gynecology, Yinzhou Renmin Hospital Affiliated to Medical School of Ningbo UniversityNingbo 315040, Zhejiang, China
| | - Jie Zhu
- Department of Hepato-Biliary-Pancreatic Surgery, The Affiliated Ningbo Medical Center of Lihuili Hospital of Medical School of Ningbo UniversityNingbo 315048, Zhejiang, China
| | - Zhaohui Gong
- Department of Biochemistry and Molecular Biology, Zhejiang Key Laboratory of Pathophysiology, Medical School of Ningbo UniversityNingbo 315211, Zhejiang, China
| | - Chenji Wang
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan UniversityShanghai 200433, China
| | - Kun Gao
- Clinical and Translational Research Center, Shanghai First Maternity and Infant Hospital, Tongji University School of MedicineShanghai 200090, China
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Yan C, Guo B, Keller LM, Suh JH, Xia P. Dosimetric Quality of Artificial Intelligence Based Organ at Risk Segmentation. Int J Radiat Oncol Biol Phys 2023; 117:e493. [PMID: 37785555 DOI: 10.1016/j.ijrobp.2023.06.1728] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) to compare dosimetric parameters between Artificial intelligence (AI) generated organ at risks (OAR) and Radiation Oncologist approved OARs and evaluation of appropriateness unedited AI- OARs in routine clinical plan optimization and evaluation. MATERIALS/METHODS The OARs (lung, spinal cord and heart) for twenty SBRT (stereotactic body radiotherapy) lung CT simulation datasets were derived by AI based segmentation algorithms. These AI- OARs were edited by a staff Radiation Oncologist and then subjected to our SBRT peer-review process at our institution. A SBRT plan based on the approved contours was created. Dosimetric parameters for the unedited AI-OARs and edited physician-approved OARs were then compared. RESULTS Lung V20 differences between AI- OAR and physician- OAR varied from 0.01% - 0.7% with a mean value of 0.1% difference (p-value 0.004). Spinal cord D0.03cc varied from 0.02 Gy - 0.9 Gy with a mean value of 0.3 Gy difference (p-value 0.002). Heart D0.03cc varied from 0.01 Gy - 4.3 Gy with mean value 0.9 Gy difference (p-value 0.02). CONCLUSION Dosimetric parameters for AI-based lung, spinal cord and heart OARs vs physician approved OARs were different, overall, the differences were generally small. These differences are likely on par with inter-observer differences seen between individual radiation oncologists. Unedited OARs have the promise for routine use in plan optimization and evaluation to further improve efficiency.
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Affiliation(s)
- C Yan
- Cleveland Clinic Foundation, Cleveland, OH
| | - B Guo
- Department of Radiation Oncology, Taussig Cancer Institute, Cleveland Clinic, Cleveland, OH
| | | | - J H Suh
- Department of Radiation Oncology, Taussig Cancer Center, Cleveland Clinic, Cleveland, OH
| | - P Xia
- Department of Radiation Oncology, Taussig Cancer Institute, Cleveland Clinic, Cleveland, OH
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9
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Yang J, Bergdorf K, Yan C, Luo W, Chen SC, Ayers GD, Liu Q, Liu X, Boothby M, Weiss VL, Groves SM, Oleskie AN, Zhang X, Maeda DY, Zebala JA, Quaranta V, Richmond A. CXCR2 expression during melanoma tumorigenesis controls transcriptional programs that facilitate tumor growth. Mol Cancer 2023; 22:92. [PMID: 37270599 PMCID: PMC10239119 DOI: 10.1186/s12943-023-01789-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Accepted: 05/16/2023] [Indexed: 06/05/2023] Open
Abstract
BACKGROUND Though the CXCR2 chemokine receptor is known to play a key role in cancer growth and response to therapy, a direct link between expression of CXCR2 in tumor progenitor cells during induction of tumorigenesis has not been established. METHODS To characterize the role of CXCR2 during melanoma tumorigenesis, we generated tamoxifen-inducible tyrosinase-promoter driven BrafV600E/Pten-/-/Cxcr2-/- and NRasQ61R/INK4a-/-/Cxcr2-/- melanoma models. In addition, the effects of a CXCR1/CXCR2 antagonist, SX-682, on melanoma tumorigenesis were evaluated in BrafV600E/Pten-/- and NRasQ61R/INK4a-/- mice and in melanoma cell lines. Potential mechanisms by which Cxcr2 affects melanoma tumorigenesis in these murine models were explored using RNAseq, mMCP-counter, ChIPseq, and qRT-PCR; flow cytometry, and reverse phosphoprotein analysis (RPPA). RESULTS Genetic loss of Cxcr2 or pharmacological inhibition of CXCR1/CXCR2 during melanoma tumor induction resulted in key changes in gene expression that reduced tumor incidence/growth and increased anti-tumor immunity. Interestingly, after Cxcr2 ablation, Tfcp2l1, a key tumor suppressive transcription factor, was the only gene significantly induced with a log2 fold-change greater than 2 in these three different melanoma models. CONCLUSIONS Here, we provide novel mechanistic insight revealing how loss of Cxcr2 expression/activity in melanoma tumor progenitor cells results in reduced tumor burden and creation of an anti-tumor immune microenvironment. This mechanism entails an increase in expression of the tumor suppressive transcription factor, Tfcp2l1, along with alteration in the expression of genes involved in growth regulation, tumor suppression, stemness, differentiation, and immune modulation. These gene expression changes are coincident with reduction in the activation of key growth regulatory pathways, including AKT and mTOR.
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Affiliation(s)
- J Yang
- TVHS Department of Veterans Affairs, Nashville, TN, 37212, USA
- Department of Pharmacology, Vanderbilt University School of Medicine, Nashville, TN, 37240, USA
| | - K Bergdorf
- TVHS Department of Veterans Affairs, Nashville, TN, 37212, USA
- Department of Pharmacology, Vanderbilt University School of Medicine, Nashville, TN, 37240, USA
| | - C Yan
- TVHS Department of Veterans Affairs, Nashville, TN, 37212, USA
- Department of Pharmacology, Vanderbilt University School of Medicine, Nashville, TN, 37240, USA
| | - W Luo
- TVHS Department of Veterans Affairs, Nashville, TN, 37212, USA
- Department of Pharmacology, Vanderbilt University School of Medicine, Nashville, TN, 37240, USA
| | - S C Chen
- Department of Biostatistics, Vanderbilt University Medical Center, Nashville, TN, 37203-1742, USA
| | - G D Ayers
- Department of Biostatistics, Vanderbilt University Medical Center, Nashville, TN, 37203-1742, USA
| | - Q Liu
- Department of Biostatistics, Vanderbilt University Medical Center, Nashville, TN, 37203-1742, USA
| | - X Liu
- Department of Biostatistics, Vanderbilt University Medical Center, Nashville, TN, 37203-1742, USA
| | - M Boothby
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, TN, 37232, USA
| | - V L Weiss
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, TN, 37232, USA
| | - S M Groves
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, TN, 37232, USA
| | - A N Oleskie
- Department of Pharmacology, Vanderbilt University School of Medicine, Nashville, TN, 37240, USA
| | - X Zhang
- Department of Genomic Medicine, MD Anderson Cancer Center, University of Texas, Houston, TX, 77030, USA
| | - D Y Maeda
- Syntrix Pharmaceuticals, Auburn, WA, 98001, USA
| | - J A Zebala
- Syntrix Pharmaceuticals, Auburn, WA, 98001, USA
| | - V Quaranta
- Department of Pharmacology, Vanderbilt University School of Medicine, Nashville, TN, 37240, USA
- Department of Biochemistry, Vanderbilt University, TN, 37240, Nashville, USA
| | - A Richmond
- TVHS Department of Veterans Affairs, Nashville, TN, 37212, USA.
- Department of Pharmacology, Vanderbilt University School of Medicine, Nashville, TN, 37240, USA.
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Wang L, Wang L, Yan C, Fu Y, Yang JF, Ma J, Song S. Structural characterization of a fucoidan from Ascophyllum nodosum and comparison of its protective effect against cellular oxidative stress with its analogues. Int J Biol Macromol 2023; 239:124295. [PMID: 37011755 DOI: 10.1016/j.ijbiomac.2023.124295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 03/05/2023] [Accepted: 03/29/2023] [Indexed: 04/04/2023]
Abstract
In the present study, a fucoidan fraction (ANP-3) was isolated from Ascophyllum nodosum, and the combined application of desulfation, methylation, HPGPC, HPLC-MSn, FT-IR, GC-MS, NMR, and Congo red test elucidated ANP-3 (124.5 kDa) as a triple-helical sulfated polysaccharide constituted by →2)-α-Fucp3S-(1→, →3)-α-Fucp2S4S-(1→, →3,6)-β-Galp4S-(1→, →3,6)-β-Manp4S-(1→, →3,6)-β-Galp4S-(1→,→6)-β-Manp-(1→, →3)-β-Galp-(1→, α-Fucp-(1→, and α-GlcAp-(1→ residues. To better understand the relationship between the fucoidan structure of A. nodosum and protective effects against oxidative stress, two fractions ANP-6 and ANP-7 were used as contrast. ANP-6 (63.2 kDa) exhibited no protective effect against H2O2-induced oxidative stress. However, ANP-3 and ANP-7 with the same molecular weight of 124.5 kDa could protect against oxidative stress by down-regulating reactive oxygen species (ROS) and malondialdehyde (MDA) levels and up-regulating total antioxidant capability (T-AOC), superoxide dismutase (SOD), catalase (CAT), and glutathione peroxidase (GPX) activities. Then metabolites analysis indicated that arginine biosynthesis and phenylalanine, tyrosine, and tryptophan biosynthesis metabolic pathways and metabolic biomarkers such as betaine were involved in the effects of ANP-3 and ANP-7. The better protective effect of ANP-7 compared to that of ANP-3 could be attributed to its relatively higher molecular weight, sulfate substitution and →6)-β-Galp-(1→ content, and lower uronic acid content.
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Affiliation(s)
- Lilong Wang
- National Engineering Research Center of Seafood, Collaborative Innovation Center of Seafood Deep Processing, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, PR China
| | - Linlin Wang
- National Engineering Research Center of Seafood, Collaborative Innovation Center of Seafood Deep Processing, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, PR China
| | - Chunhong Yan
- National Engineering Research Center of Seafood, Collaborative Innovation Center of Seafood Deep Processing, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, PR China; National & Local Joint Engineering Laboratory for Marine Bioactive Polysaccharide Development and Application, Dalian 116034, PR China
| | - Yinghuan Fu
- National Engineering Research Center of Seafood, Collaborative Innovation Center of Seafood Deep Processing, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, PR China; National & Local Joint Engineering Laboratory for Marine Bioactive Polysaccharide Development and Application, Dalian 116034, PR China
| | - Jing-Feng Yang
- National Engineering Research Center of Seafood, Collaborative Innovation Center of Seafood Deep Processing, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, PR China; National & Local Joint Engineering Laboratory for Marine Bioactive Polysaccharide Development and Application, Dalian 116034, PR China
| | - Jiale Ma
- National Engineering Research Center of Seafood, Collaborative Innovation Center of Seafood Deep Processing, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, PR China
| | - Shuang Song
- National Engineering Research Center of Seafood, Collaborative Innovation Center of Seafood Deep Processing, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, PR China; National & Local Joint Engineering Laboratory for Marine Bioactive Polysaccharide Development and Application, Dalian 116034, PR China.
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Prasad CB, Oo A, Qiu Z, Li N, Singh D, Xin X, Cho YJ, Li Z, Zhang X, Yan C, Zheng Q, Shao J, Wang QE, Kim B, Zhang J. The thioredoxin system determines CHK1 inhibitor sensitivity via redox-mediated regulation of ribonucleotide reductase activity. Res Sq 2023:rs.3.rs-2814118. [PMID: 37205570 PMCID: PMC10187419 DOI: 10.21203/rs.3.rs-2814118/v1] [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: 05/21/2023]
Abstract
Checkpoint kinase 1 (CHK1) is critical for cell survival under replication stress (RS). CHK1 inhibitors (CHK1i's) in combination with chemotherapy have shown promising results in preclinical studies but minimal efficacy with substantial toxicity in clinical trials. To explore novel combinational strategies that can overcome these limitations, we performed an unbiased high-throughput screen in a non-small cell lung cancer (NSCLC) cell line and identified thioredoxin1 (Trx1), a major component of the mammalian antioxidant-system, as a novel determinant of CHK1i sensitivity. We established a role for redox recycling of RRM1, the larger subunit of ribonucleotide reductase (RNR), and a depletion of the deoxynucleotide pool in this Trx1-mediated CHK1i sensitivity. Further, the TrxR1 inhibitor auronafin, an anti-rheumatoid arthritis drug, shows a synergistic interaction with CHK1i via interruption of the deoxynucleotide pool. Together, these findings identify a new pharmacological combination to treat NSCLC that relies on a redox regulatory link between the Trx system and mammalian RNR activity.
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Affiliation(s)
- Chandra Bhushan Prasad
- Department of Radiation Oncology, The James Comprehensive Cancer Center, The Ohio State University, Columbus, Ohio-43210
| | - Adrian Oo
- Department of Pediatrics, School of Medicine Emory University, Atlanta, Georgia-30322
| | - Zhaojun Qiu
- Department of Radiation Oncology, The James Comprehensive Cancer Center, The Ohio State University, Columbus, Ohio-43210
| | - Na Li
- Department of Radiation Oncology, The James Comprehensive Cancer Center, The Ohio State University, Columbus, Ohio-43210
| | - Deepika Singh
- Department of Radiation Oncology, The James Comprehensive Cancer Center, The Ohio State University, Columbus, Ohio-43210
| | | | - Young-Jae Cho
- Department of Pediatrics, School of Medicine Emory University, Atlanta, Georgia-30322
| | | | - Xiaoli Zhang
- Department of Biomedical Informatics, Wexner Medical Center, College of Medicine, The Ohio State University, Ohio, 43210
| | - Chunhong Yan
- Georgia Cancer Center, Augusta University Medical College, Augusta, Georgia
| | - Qingfei Zheng
- Department of Radiation Oncology, The James Comprehensive Cancer Center, The Ohio State University, Columbus, Ohio-43210
- The James Comprehensive Cancer Center, Center for metabolism, The Ohio State University, Columbus, OH, United States
| | - Jimin Shao
- Department of Pathology & Pathophysiology, Cancer Institute of the Second Affiliated Hospital, Zhejiang University Cancer Center, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Qi-En Wang
- Department of Radiation Oncology, The James Comprehensive Cancer Center, The Ohio State University, Columbus, Ohio-43210
| | - Baek Kim
- Department of Pediatrics, School of Medicine Emory University, Atlanta, Georgia-30322
| | - Junran Zhang
- Department of Radiation Oncology, The James Comprehensive Cancer Center, The Ohio State University, Columbus, Ohio-43210
- The James Comprehensive Cancer Center, Pelotonia Institute for Immuno-Oncology, The Ohio State University, Columbus, OH, United States
- The James Comprehensive Cancer Center, Center for metabolism, The Ohio State University, Columbus, OH, United States
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Markwalder JA, Balog AJ, Williams DK, Nara SJ, Reddy R, Roy S, Kanyaboina Y, Li X, Johnston K, Fan Y, Lewis H, Marsilio F, Yan C, Critton D, Newitt JA, Traeger SC, Wu DR, Jure-Kunkel MN, Jayaraman L, Lin TA, Sinz MW, Hunt JT, Seitz SP. Synthesis and Biological Evaluation of Biaryl Alkyl Ethers as Inhibitors of IDO1. Bioorg Med Chem Lett 2023; 88:129280. [PMID: 37054759 DOI: 10.1016/j.bmcl.2023.129280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 03/27/2023] [Accepted: 04/06/2023] [Indexed: 04/15/2023]
Abstract
Starting from the dialkylaniline indoleamine 2,3-dioxygenase 1 (IDO1) inhibitor lead 3 (IDO1 HeLa IC50 = 7.0 nM), an iterative process of synthesis and screening led to cyclized analog 21 (IDO1 HeLa IC50 = 3.6 nM) which maintained the high potency of 3 while addressing issues of lipophilicity, cytochrome P450 (CYP) inhibition, hERG (human potassium ion channel Kv11.1) inhibition, Pregnane X Receptor (PXR) transactivation, and oxidative metabolic stability. An x-ray crystal structure of a biaryl alkyl ether 11 bound to IDO1 was obtained. Consistent with our earlier results, compound 11 was shown to bind to the apo form of the enzyme.
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Affiliation(s)
- Jay A Markwalder
- Research & Development, Bristol Myers Squibb, Route 206 & Province Line Road, Princeton, NJ 08543, United States.
| | - Aaron J Balog
- Research & Development, Bristol Myers Squibb, Route 206 & Province Line Road, Princeton, NJ 08543, United States
| | - David K Williams
- Research & Development, Bristol Myers Squibb, Route 206 & Province Line Road, Princeton, NJ 08543, United States.
| | - Susheel J Nara
- Discovery Chemistry, Biocon Bristol Myers Squibb Research & Development Center, Bangalore, India
| | - Ratnakar Reddy
- Discovery Chemistry, Biocon Bristol Myers Squibb Research & Development Center, Bangalore, India
| | - Saumya Roy
- Former Bristol Myers Squibb Employee, USA
| | - Yadagiri Kanyaboina
- Discovery Chemistry, Biocon Bristol Myers Squibb Research & Development Center, Bangalore, India
| | - Xin Li
- Research & Development, Bristol Myers Squibb, Route 206 & Province Line Road, Princeton, NJ 08543, United States
| | | | - Yi Fan
- Former Bristol Myers Squibb Employee, USA
| | - Hal Lewis
- Former Bristol Myers Squibb Employee, USA
| | - Frank Marsilio
- Research & Development, Bristol Myers Squibb, Route 206 & Province Line Road, Princeton, NJ 08543, United States
| | - Chunhong Yan
- Research & Development, Bristol Myers Squibb, Route 206 & Province Line Road, Princeton, NJ 08543, United States
| | - David Critton
- Research & Development, Bristol Myers Squibb, Route 206 & Province Line Road, Princeton, NJ 08543, United States
| | - John A Newitt
- Research & Development, Bristol Myers Squibb, Route 206 & Province Line Road, Princeton, NJ 08543, United States
| | - Sarah C Traeger
- Research & Development, Bristol Myers Squibb, Route 206 & Province Line Road, Princeton, NJ 08543, United States
| | - Dauh-Rurng Wu
- Research & Development, Bristol Myers Squibb, Route 206 & Province Line Road, Princeton, NJ 08543, United States
| | | | | | - Tai-An Lin
- Former Bristol Myers Squibb Employee, USA
| | - Michael W Sinz
- Research & Development, Bristol Myers Squibb, Route 206 & Province Line Road, Princeton, NJ 08543, United States
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Rogers W, Keek SA, Beuque M, Lavrova E, Primakov S, Wu G, Yan C, Sanduleanu S, Gietema HA, Casale R, Occhipinti M, Woodruff HC, Jochems A, Lambin P. Towards texture accurate slice interpolation of medical images using PixelMiner. Comput Biol Med 2023; 161:106701. [PMID: 37244145 DOI: 10.1016/j.compbiomed.2023.106701] [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: 11/29/2021] [Revised: 08/06/2022] [Accepted: 11/23/2022] [Indexed: 05/29/2023]
Abstract
Quantitative image analysis models are used for medical imaging tasks such as registration, classification, object detection, and segmentation. For these models to be capable of making accurate predictions, they need valid and precise information. We propose PixelMiner, a convolution-based deep-learning model for interpolating computed tomography (CT) imaging slices. PixelMiner was designed to produce texture-accurate slice interpolations by trading off pixel accuracy for texture accuracy. PixelMiner was trained on a dataset of 7829 CT scans and validated using an external dataset. We demonstrated the model's effectiveness by using the structural similarity index (SSIM), peak signal to noise ratio (PSNR), and the root mean squared error (RMSE) of extracted texture features. Additionally, we developed and used a new metric, the mean squared mapped feature error (MSMFE). The performance of PixelMiner was compared to four other interpolation methods: (tri-)linear, (tri-)cubic, windowed sinc (WS), and nearest neighbor (NN). PixelMiner produced texture with a significantly lowest average texture error compared to all other methods with a normalized root mean squared error (NRMSE) of 0.11 (p < .01), and the significantly highest reproducibility with a concordance correlation coefficient (CCC) ≥ 0.85 (p < .01). PixelMiner was not only shown to better preserve features but was also validated using an ablation study by removing auto-regression from the model and was shown to improve segmentations on interpolated slices.
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Affiliation(s)
- W Rogers
- The D-Lab, Department of Precision Medicine, GROW - School for Oncology and Developmental Biology, Maastricht University, Maastricht, the Netherlands
| | - S A Keek
- The D-Lab, Department of Precision Medicine, GROW - School for Oncology and Developmental Biology, Maastricht University, Maastricht, the Netherlands
| | - M Beuque
- The D-Lab, Department of Precision Medicine, GROW - School for Oncology and Developmental Biology, Maastricht University, Maastricht, the Netherlands
| | - E Lavrova
- The D-Lab, Department of Precision Medicine, GROW - School for Oncology and Developmental Biology, Maastricht University, Maastricht, the Netherlands; GIGA Cyclotron Research Centre in Vivo Imaging, University of Liège, Liège, Belgium
| | - S Primakov
- The D-Lab, Department of Precision Medicine, GROW - School for Oncology and Developmental Biology, Maastricht University, Maastricht, the Netherlands
| | - G Wu
- The D-Lab, Department of Precision Medicine, GROW - School for Oncology and Developmental Biology, Maastricht University, Maastricht, the Netherlands
| | - C Yan
- The D-Lab, Department of Precision Medicine, GROW - School for Oncology and Developmental Biology, Maastricht University, Maastricht, the Netherlands
| | - S Sanduleanu
- The D-Lab, Department of Precision Medicine, GROW - School for Oncology and Developmental Biology, Maastricht University, Maastricht, the Netherlands
| | - H A Gietema
- Department of Radiology and Nuclear Medicine, GROW - School for Oncology and Developmental Biology, Maastricht University Medical Centre+, Maastricht, the Netherlands
| | - R Casale
- The D-Lab, Department of Precision Medicine, GROW - School for Oncology and Developmental Biology, Maastricht University, Maastricht, the Netherlands; Department of Radiology, Institut Jules Bordet, Université Libre de Bruxelles, Brussels, Belgium
| | - M Occhipinti
- Radiomics, Clos Chanmurly 13, 4000, Liege, Belgium
| | - H C Woodruff
- The D-Lab, Department of Precision Medicine, GROW - School for Oncology and Developmental Biology, Maastricht University, Maastricht, the Netherlands; Department of Radiology and Nuclear Medicine, GROW - School for Oncology and Developmental Biology, Maastricht University Medical Centre+, Maastricht, the Netherlands
| | - A Jochems
- The D-Lab, Department of Precision Medicine, GROW - School for Oncology and Developmental Biology, Maastricht University, Maastricht, the Netherlands
| | - P Lambin
- The D-Lab, Department of Precision Medicine, GROW - School for Oncology and Developmental Biology, Maastricht University, Maastricht, the Netherlands; Department of Radiology and Nuclear Medicine, GROW - School for Oncology and Developmental Biology, Maastricht University Medical Centre+, Maastricht, the Netherlands.
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Yan C, Shan F, Li ZY. [Prevalence of colorectal cancer in 2020: a comparative analysis between China and the world]. Zhonghua Zhong Liu Za Zhi 2023; 45:221-229. [PMID: 36944543 DOI: 10.3760/cma.j.cn112152-20221008-00682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Indexed: 03/23/2023]
Abstract
Objective: To demonstrate the disease burden and epidemiological characteristics of colorectal cancer in different regions by analyzing the incidence and mortality data in China and worldwide in 2020. Methods: Estimation of the incidence and mortality data of colorectal cancer were obtained from the GLOBOCAN 2020 database. The incidence, death, age standardized incidence rate (ASIR) and age standardized mortality rate (ASMR) of colorectal cancer in China and 20 regions in the world were compared. The correlation between the Human Development Index (HDI) and ASIR/ASMR was analyzed. Results: In 2020, the number of new cases of colorectal cancer in the world reached 1 931 600, and the number of deaths reached 935 200. The incidence and mortality in all regions of the world continued to rise in the age group above 50 years old. The morbidity and mortality in male were higher than those in female. East Asia ranked the highest number of incidence cases and deaths in the world, which were 740 000 and 360 100 respectively. There were significant differences in incidence and mortality among regions in the world. The highest ASIR and ASMR were observed in Northern Europe (33.61/100 000) and Eastern Europe (14.53/100 000), whereas the lowest ASIR and ASMR were both observed in South-Central Asia (5.46/100 000 and 3.16/100 000). HDI had significant exponential relationship with ASIR (r(2)=0.59, P<0.001) and ASMR (r(2)=0.38, P<0.001). There were 555 500 new cases and 286 200 death cases of colorectal cancer in China, accounting for about 30% of the world and more than 75% of East Asia. The ASIR of China was 24.07/100 000, ranking at the medium level, while the ASMR was 12.07/100 000, ranking at the high level of world. Conclusion: The incidence and mortality of colorectal cancer are highly correlated with HDI. China is one of the countries with the heaviest disease burden of colorectal cancer in the world.
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Affiliation(s)
- C Yan
- Key Laboratory of Carcinogenesis and Translational Research, Ministry of Education/Beijing, Gastrointestinal Cancer Center, Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - F Shan
- Key Laboratory of Carcinogenesis and Translational Research, Ministry of Education/Beijing, Gastrointestinal Cancer Center, Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - Z Y Li
- Key Laboratory of Carcinogenesis and Translational Research, Ministry of Education/Beijing, Gastrointestinal Cancer Center, Peking University Cancer Hospital & Institute, Beijing 100142, China
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Yang J, Bergdorf K, Yan C, Luo W, Chen SC, Ayers D, Liu Q, Liu X, Boothby M, Groves SM, Oleskie AN, Zhang X, Maeda DY, Zebala JA, Quaranta V, Richmond A. CXCR2 expression during melanoma tumorigenesis controls transcriptional programs that facilitate tumor growth. bioRxiv 2023:2023.02.22.529548. [PMID: 36865260 PMCID: PMC9980137 DOI: 10.1101/2023.02.22.529548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
Abstract
Background Though the CXCR2 chemokine receptor is known to play a key role in cancer growth and response to therapy, a direct link between expression of CXCR2 in tumor progenitor cells during induction of tumorigenesis has not been established. Methods To characterize the role of CXCR2 during melanoma tumorigenesis, we generated tamoxifen-inducible tyrosinase-promoter driven Braf V600E /Pten -/- /Cxcr2 -/- and NRas Q61R /INK4a -/- /Cxcr2 -/- melanoma models. In addition, the effects of a CXCR1/CXCR2 antagonist, SX-682, on melanoma tumorigenesis were evaluated in Braf V600E /Pten -/- and NRas Q61R /INK4a -/- mice and in melanoma cell lines. Potential mechanisms by which Cxcr2 affects melanoma tumorigenesis in these murine models were explored using RNAseq, mMCP-counter, ChIPseq, and qRT-PCR; flow cytometry, and reverse phosphoprotein analysis (RPPA). Results Genetic loss of Cxcr2 or pharmacological inhibition of CXCR1/CXCR2 during melanoma tumor induction resulted in key changes in gene expression that reduced tumor incidence/growth and increased anti-tumor immunity. Interestingly, after Cxcr2 ablation, Tfcp2l1 , a key tumor suppressive transcription factor, was the only gene significantly induced with a log 2 fold-change greater than 2 in these three different melanoma models. Conclusions Here, we provide novel mechanistic insight revealing how loss of Cxcr2 expression/activity in melanoma tumor progenitor cells results in reduced tumor burden and creation of an anti-tumor immune microenvironment. This mechanism entails an increase in expression of the tumor suppressive transcription factor, Tfcp2l1, along with alteration in the expression of genes involved in growth regulation, tumor suppression, stemness, differentiation, and immune modulation. These gene expression changes are coincident with reduction in the activation of key growth regulatory pathways, including AKT and mTOR.
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Wang L, Yan C, Wang L, Ai C, Wang S, Shen C, Tong Y, Song S. Ascophyllum nodosum polysaccharide regulates gut microbiota metabolites to protect against colonic inflammation in mice. Food Funct 2023; 14:810-821. [PMID: 36617886 DOI: 10.1039/d2fo02964b] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Ascophyllum nodosum polysaccharide (ANP) can protect against colonic inflammation but the underlying mechanism is still unclear. This study has determined the metabolites of gut microbiota regulated by ANP to reveal the mechanism of the anti-inflammation effect of ANP. Using an in vitro colonic fermentation model, the results indicate that gut microbiota could utilize a proportion of ANP to increase the concentrations of short-chain fatty acids (SCFAs) and decrease ammonia content. Metabolomics revealed that 46 differential metabolites, such as betaine, L-carnitine, and aminoimidazole carboxamide ribonucleotide (AICAR), could be altered by ANP. Metabolic pathway analysis showed that ANP mainly up-regulated the phenylalanine, tyrosine, and tryptophan biosynthesis and aminoacyl-tRNA biosynthesis, which were negatively correlated with inflammation progression. Interestingly, these metabolites associated with inflammation were also up-regulated by ANP in colitis mice, including betaine, L-carnitine, AICAR, N-acetyl-glutamine, tryptophan, and valine, which were mainly associated with amino acid metabolism and aminoacyl-tRNA biosynthesis. Furthermore, the metabolites modulated by ANP were associated with the relative abundances of Akkermansia, Bacteroides, Blautia, Coprobacillus, Enterobacter, and Klebsiella. Additionally, based on VIP values, betaine is a key metabolite after the ANP supplement in vitro and in vivo. As indicated by these findings, ANP can up-regulate the production of SCFAs, betaine, L-carnitine, and AICAR and aminoacyl-tRNA biosynthesis to protect against colonic inflammation and maintain intestinal health.
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Affiliation(s)
- Lilong Wang
- National Engineering Research Center of Seafood, School of Food Science and Technology, Collaborative Innovation Center of Seafood Deep Processing, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, P. R. China.
| | - Chunhong Yan
- National Engineering Research Center of Seafood, School of Food Science and Technology, Collaborative Innovation Center of Seafood Deep Processing, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, P. R. China.
| | - Linlin Wang
- National Engineering Research Center of Seafood, School of Food Science and Technology, Collaborative Innovation Center of Seafood Deep Processing, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, P. R. China.
| | - Chunqing Ai
- National Engineering Research Center of Seafood, School of Food Science and Technology, Collaborative Innovation Center of Seafood Deep Processing, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, P. R. China.
| | - Songtao Wang
- National Engineering Research Center of Solid-State Brewing, Luzhou, Sichuan 646000, China
| | - Caihong Shen
- National Engineering Research Center of Solid-State Brewing, Luzhou, Sichuan 646000, China
| | - Yuqin Tong
- National Engineering Research Center of Solid-State Brewing, Luzhou, Sichuan 646000, China
| | - Shuang Song
- National Engineering Research Center of Seafood, School of Food Science and Technology, Collaborative Innovation Center of Seafood Deep Processing, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, P. R. China.
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Yan C, Hui Z, Wang Q, Xiao S, Pu Y, Wang Q, Wang T, You J, Ren X. OA09.03 Single Cell Analyses Reveal Effects of Immunosenescence Cells in Neoadjuvant Immunotherapy of Lung Squamous cell Carcinoma Patients. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Wang L, Wang L, Yan C, Ai C, Wen C, Guo X, Song S. Two Ascophyllum nodosum Fucoidans with Different Molecular Weights Inhibit Inflammation via Blocking of TLR/NF-κB Signaling Pathway Discriminately. Foods 2022; 11:foods11152381. [PMID: 35954147 PMCID: PMC9368091 DOI: 10.3390/foods11152381] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [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: 06/26/2022] [Revised: 07/27/2022] [Accepted: 08/04/2022] [Indexed: 11/16/2022] Open
Abstract
The present study aimed to clarify the potential mechanism of fucoidans found in Ascophyllum nodosum on anti-inflammation and to further explore the relationship between their structures and anti-inflammation. Two novel fucoidans named ANP-6 and ANP-7 and found in A. nodosum, were separated and purified and their structures were elucidated by HPGPC, HPLC, GC-MS, FT-IR, NMR, and by the Congo red test. They both possessed a backbone constructed of →2)-α-L-Fucp4S-(1→, →3)-α-L-Fucp2S4S-(1→, →6)-β-D-Galp-(1→, and →3,6)-β-D-Galp4S-(1→ with branches of →2)-α-L-Fucp4S-(1→ and →3)-β-D-Galp-(1→. Moreover, ANP-6 and ANP-7 could prevent the inflammation of the LPS-stimulated macrophages by suppressing the NO production and by regulating the expressions of iNOS, COX-2, TNF-α, IL-1β, IL-6, and IL-10. Their inhibitory effects on the TLR-2 and TLR-4 levels suggest that they inhibit the inflammation process via the blocking of the TLR/NF-κB signal transduction. In addition, ANP-6, with a molecular weight (63.2 kDa), exhibited stronger anti-inflammatory capabilities than ANP-7 (124.5 kDa), thereby indicating that the molecular weight has an influence on the anti-inflammatory effects of fucoidans.
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Affiliation(s)
- Lilong Wang
- National Engineering Research Center of Seafood, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
| | - Linlin Wang
- National Engineering Research Center of Seafood, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
| | - Chunhong Yan
- National Engineering Research Center of Seafood, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
| | - Chunqing Ai
- National Engineering Research Center of Seafood, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
| | - Chengrong Wen
- National Engineering Research Center of Seafood, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
| | - Xiaoming Guo
- Shenzhen Key Laboratory of Food Nutrition and Health, Institute for Advanced Study, Shenzhen University, Shenzhen 518060, China
| | - Shuang Song
- National Engineering Research Center of Seafood, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
- Correspondence:
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Yan C, Zhao L, Geng S, Guo K. LB1000 Potential role of cold atmospheric plasma in improving drug resistance of BRAFi/MEKi and immune checkpoint blockade agents in melanoma cells. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.05.1026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Zhao L, Yan C, Zhang X, Jia T, Geng S, Guo K. LB1001 Effectiveness and differentially expressed genes analysis of melanoma cells treated with cold atmospheric plasma. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.05.1027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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21
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Hill MD, Fang H, Norris D, Delucca GV, Huang H, DeBenedetto M, Quesnelle C, Schmitz WD, Tokarski JS, Sheriff S, Yan C, Fanslau C, Haarhoff Z, Huang C, Kramer M, Madari S, Menard K, Monereau L, Morrison J, Raghavan N, Shields EE, Simmermacher-Mayer J, Sinz M, Tye CK, Westhouse R, Xie C, Zhang H, Zhang L, Zvyaga T, Lee F, Gavai AV, Degnan AP. Development of BET Inhibitors as Potential Treatments for Cancer: Optimization of Pharmacokinetic Properties. ACS Med Chem Lett 2022; 13:1165-1171. [DOI: 10.1021/acsmedchemlett.2c00219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Affiliation(s)
- Matthew D. Hill
- Research & Development, Bristol Myers Squibb Company, 100 Binney Street, Cambridge, Massachusetts 02142, United States
| | - Haiquan Fang
- Research & Development, Bristol Myers Squibb Company, Wallingford, Connecticut 06492, United States
| | - Derek Norris
- Research & Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543, United States
| | - George V. Delucca
- Research & Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543, United States
| | - Hong Huang
- Research & Development, Bristol Myers Squibb Company, Wallingford, Connecticut 06492, United States
| | - Mikkel DeBenedetto
- Research & Development, Bristol Myers Squibb Company, Wallingford, Connecticut 06492, United States
| | - Claude Quesnelle
- Research & Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543, United States
| | - William D. Schmitz
- Research & Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543, United States
| | - John S. Tokarski
- Research & Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543, United States
| | - Steven Sheriff
- Research & Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543, United States
| | - Chunhong Yan
- Research & Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543, United States
| | - Caroline Fanslau
- Research & Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543, United States
| | - Zuzana Haarhoff
- Research & Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543, United States
| | - Christine Huang
- Research & Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543, United States
| | - Melissa Kramer
- Research & Development, Bristol Myers Squibb Company, Wallingford, Connecticut 06492, United States
| | - Shilpa Madari
- Research & Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543, United States
| | - Krista Menard
- Research & Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543, United States
| | - Laura Monereau
- Research & Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543, United States
| | - John Morrison
- Research & Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543, United States
| | - Nirmala Raghavan
- Research & Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543, United States
| | - Eric E. Shields
- Research & Development, Bristol Myers Squibb Company, Wallingford, Connecticut 06492, United States
| | - Jean Simmermacher-Mayer
- Research & Development, Bristol Myers Squibb Company, Wallingford, Connecticut 06492, United States
| | - Michael Sinz
- Research & Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543, United States
| | - Ching Kim Tye
- Research & Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543, United States
| | - Richard Westhouse
- Research & Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543, United States
| | - Chunshan Xie
- Research & Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543, United States
| | - Haiying Zhang
- Research & Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543, United States
| | - Lisa Zhang
- Research & Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543, United States
| | - Tatyana Zvyaga
- Research & Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543, United States
| | - Francis Lee
- Research & Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543, United States
| | - Ashvinikumar V. Gavai
- Research & Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543, United States
| | - Andrew P. Degnan
- Research & Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543, United States
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22
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Wang Y, Liu J, Liu H, Liu L, Gao X, Tong Y, Song S, Yan C. Oxidized PUFAs Increase Susceptibility of Mice to Salmonella Infection by Diminishing Host's Innate Immune Responses. J Agric Food Chem 2022; 70:6407-6417. [PMID: 35588298 DOI: 10.1021/acs.jafc.2c00099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Dietary ω-3 PUFAs are highly prone to oxidation, and this may potentially limit their application in the health-promoting field. Here, we sought to investigate whether and how oxidized PUFAs modulate the susceptibility of mice to Salmonella typhimurium (S. Tm) infection. Algae oil (AO) and oxidized algae oil (ox-AO) were administered to the C57BL/6 mice prior to S. Tm infection. Compared to the S. Tm group, ox-AO increased bacterial burden in systemic and intestinal tissues, downregulated host anti-infection responses, and developed worse colitis. In macrophages, ox-AO decreased both phagocytosis of S. Tm and clearance of intracellular bacteria and dampened the activation of mitogen-activated protein kinase (MAPK), NF-κB, and autophagy pathways. Furthermore, ox-AO diminished LPS-induced inflammatory cytokine production and S. Tm induced NLRC4 inflammasome activation. This study reveals that oxidized PUFAs may contribute to the development of enteric infections and regular monitoring of the oxidation status in commercial PUFA supplements to prevent their potential adverse impact on human health.
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Affiliation(s)
- Yuandong Wang
- National Engineering Research Center of Seafood, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
| | - Jiaxiu Liu
- National Engineering Research Center of Seafood, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
| | - Huanhuan Liu
- National Engineering Research Center of Seafood, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
| | - Lingzhi Liu
- National Engineering Research Center of Seafood, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
| | - Xingchen Gao
- National Engineering Research Center of Seafood, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
| | - Yuqin Tong
- National Engineering Research Center of Solid-State Brewing, Luzhou Pinchuang Technology Company Limited, Luzhou 646000, China
| | - Shuang Song
- National Engineering Research Center of Seafood, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
| | - Chunhong Yan
- National Engineering Research Center of Seafood, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
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23
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Liu Z, Yan C, Lin X, Ai C, Dong X, Shao L, Wang S, Song S, Zhu B. Responses of the gut microbiota and metabolite profiles to sulfated polysaccharides from sea cucumber in humanized microbiota mice. Food Funct 2022; 13:4171-4183. [PMID: 35316318 DOI: 10.1039/d1fo04443e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Sea cucumber Stichopus japonicus has been consumed as functional food traditionally in Asia, and its sulfated polysaccharide (SCSPsj) demonstrates health-promoting effects in rodents which are related to the regulation of the gut microbiota. However, little is known about the response of the human gut microbiota to SCSPsj. Therefore, the present study aimed to study the response of the donor microbiota to SCSPsj in vivo through a humanized microbiota mice model, which was constructed by antibiotic treatment combined with fecal microbiota transplant. The results revealed that the SCSPsj supplement could positively interact with the specific donor microbiota. It could significantly regulate the gut microbiota community, especially the abundance of Lactobacillus. In addition, SCSPsj could modulate the metabolites in serum and cecal contents of mice, including short-chain fatty acids (SCFAs) and lactic acid, and the changes of some bioactive metabolites were associated with the gut microbiota enriched by SCSPsj. Furthermore, in vitro experiments demonstrated that the Lactobacillus strains isolated could not be proliferated directly by SCSPsj, but SCSPsj significantly promoted biofilm formation and mucus binding of Lactobacillus spp., which contributed to the enrichment of Lactobacillus in vivo. The present study could provide insight into the application of SCSPsj as microbiota-directed food.
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Affiliation(s)
- Zhengqi Liu
- National Engineering Research Center of Seafood, School of Food Science and Technology, Dalian Polytechnic University, Dalian, 116034, P. R. China. .,National & Local Joint Engineering Laboratory for Marine Bioactive Polysaccharide Development and Application, Dalian Polytechnic University, Dalian, 116034, P. R. China.,Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, 100083, P. R. China
| | - Chunhong Yan
- National Engineering Research Center of Seafood, School of Food Science and Technology, Dalian Polytechnic University, Dalian, 116034, P. R. China. .,National & Local Joint Engineering Laboratory for Marine Bioactive Polysaccharide Development and Application, Dalian Polytechnic University, Dalian, 116034, P. R. China
| | - Xinping Lin
- National Engineering Research Center of Seafood, School of Food Science and Technology, Dalian Polytechnic University, Dalian, 116034, P. R. China. .,National & Local Joint Engineering Laboratory for Marine Bioactive Polysaccharide Development and Application, Dalian Polytechnic University, Dalian, 116034, P. R. China
| | - Chunqing Ai
- National Engineering Research Center of Seafood, School of Food Science and Technology, Dalian Polytechnic University, Dalian, 116034, P. R. China. .,National & Local Joint Engineering Laboratory for Marine Bioactive Polysaccharide Development and Application, Dalian Polytechnic University, Dalian, 116034, P. R. China
| | - Xiuping Dong
- National Engineering Research Center of Seafood, School of Food Science and Technology, Dalian Polytechnic University, Dalian, 116034, P. R. China. .,National & Local Joint Engineering Laboratory for Marine Bioactive Polysaccharide Development and Application, Dalian Polytechnic University, Dalian, 116034, P. R. China
| | - Li Shao
- National Engineering Research Center of Seafood, School of Food Science and Technology, Dalian Polytechnic University, Dalian, 116034, P. R. China. .,National & Local Joint Engineering Laboratory for Marine Bioactive Polysaccharide Development and Application, Dalian Polytechnic University, Dalian, 116034, P. R. China
| | - Songtao Wang
- Luzhou Pinchuang Technology Company Limited, Luzhou, Sichuan 646000, P. R. China
| | - Shuang Song
- National Engineering Research Center of Seafood, School of Food Science and Technology, Dalian Polytechnic University, Dalian, 116034, P. R. China. .,National & Local Joint Engineering Laboratory for Marine Bioactive Polysaccharide Development and Application, Dalian Polytechnic University, Dalian, 116034, P. R. China
| | - Beiwei Zhu
- National Engineering Research Center of Seafood, School of Food Science and Technology, Dalian Polytechnic University, Dalian, 116034, P. R. China. .,National & Local Joint Engineering Laboratory for Marine Bioactive Polysaccharide Development and Application, Dalian Polytechnic University, Dalian, 116034, P. R. China.,Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, 100083, P. R. China
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24
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Hong Z, Liu T, Wan L, Fa P, Kumar P, Cao Y, Prasad CB, Qiu Z, Joseph L, Hongbing W, Li Z, Wang QE, Guo P, Guo D, Yilmaz AS, Lu L, Papandreou I, Jacob NK, Yan C, Zhang X, She QB, Ma Z, Zhang J. Targeting Squalene Epoxidase Interrupts Homologous Recombination via the ER Stress Response and Promotes Radiotherapy Efficacy. Cancer Res 2022; 82:1298-1312. [PMID: 35045984 PMCID: PMC8983553 DOI: 10.1158/0008-5472.can-21-2229] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 11/03/2021] [Accepted: 01/10/2022] [Indexed: 11/16/2022]
Abstract
Over 50% of all patients with cancer are treated with radiotherapy. However, radiotherapy is often insufficient as a monotherapy and requires a nontoxic radiosensitizer. Squalene epoxidase (SQLE) controls cholesterol biosynthesis by converting squalene to 2,3-oxidosqualene. Given that SQLE is frequently overexpressed in human cancer, this study investigated the importance of SQLE in breast cancer and non-small cell lung cancer (NSCLC), two cancers often treated with radiotherapy. SQLE-positive IHC staining was observed in 68% of breast cancer and 56% of NSCLC specimens versus 15% and 25% in normal breast and lung tissue, respectively. Importantly, SQLE expression was an independent predictor of poor prognosis, and pharmacologic inhibition of SQLE enhanced breast and lung cancer cell radiosensitivity. In addition, SQLE inhibition enhanced sensitivity to PARP inhibition. Inhibition of SQLE interrupted homologous recombination by suppressing ataxia-telangiectasia mutated (ATM) activity via the translational upregulation of wild-type p53-induced phosphatase (WIP1), regardless of the p53 status. SQLE inhibition and subsequent squalene accumulation promoted this upregulation by triggering the endoplasmic reticulum (ER) stress response. Collectively, these results identify a novel tumor-specific radiosensitizer by revealing unrecognized cross-talk between squalene metabolites, ER stress, and the DNA damage response. Although SQLE inhibitors have been used as antifungal agents in the clinic, they have not yet been used as antitumor agents. Repurposing existing SQLE-inhibiting drugs may provide new cancer treatments. SIGNIFICANCE Squalene epoxidase inhibitors are novel tumor-specific radiosensitizers that promote ER stress and suppress homologous recombination, providing a new potential therapeutic approach to enhance radiotherapy efficacy.
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Affiliation(s)
- Zhipeng Hong
- Department of Radiation Oncology, The Ohio State University James Comprehensive Cancer Center and College of Medicine, OH, 43210, USA
- Department of Breast Surgery, Affiliated Quanzhou First Hospital of Fujian Medical University, Quanzhou, Fujian, 362000, P.R. China
| | - Tao Liu
- Department of Radiation Oncology, The Ohio State University James Comprehensive Cancer Center and College of Medicine, OH, 43210, USA
| | - Lingfeng Wan
- Department of Radiation Oncology, The Ohio State University James Comprehensive Cancer Center and College of Medicine, OH, 43210, USA
| | - Pengyan Fa
- Department of Radiation Oncology, The Ohio State University James Comprehensive Cancer Center and College of Medicine, OH, 43210, USA
| | - Pankaj Kumar
- Department of Radiation Oncology, The Ohio State University James Comprehensive Cancer Center and College of Medicine, OH, 43210, USA
| | - Yanan Cao
- Department of Pharmacology and Nutritional Sciences, University of Kentucky College of Medicine, Lexington, KY, 40506, USA
| | - Chandra Bhushan Prasad
- Department of Radiation Oncology, The Ohio State University James Comprehensive Cancer Center and College of Medicine, OH, 43210, USA
| | - Zhaojun Qiu
- Department of Radiation Oncology, The Ohio State University James Comprehensive Cancer Center and College of Medicine, OH, 43210, USA
| | - Liu Joseph
- Department of Radiation Oncology, The Ohio State University James Comprehensive Cancer Center and College of Medicine, OH, 43210, USA
| | - Wang Hongbing
- Department of Pharmaceutical Sciences, University of Maryland School of Pharmacy, Baltimore, Maryland, USA
| | - Zaibo Li
- Department of Pathology, The Ohio State University James Comprehensive Cancer Center and College of Medicine, OH, 43210, USA
| | - Qi-En Wang
- Department of Radiation Oncology, The Ohio State University James Comprehensive Cancer Center and College of Medicine, OH, 43210, USA
| | - Peixuan Guo
- Center for RNA Nanobiotechnology and Nanomedicine, The Ohio State University, Columbus, OH, USA
| | - Deliang Guo
- Department of Radiation Oncology, The Ohio State University James Comprehensive Cancer Center and College of Medicine, OH, 43210, USA
| | - Ayse Selen Yilmaz
- Department of Biomedical Informatics, College of Medicine, The Ohio State University James Comprehensive Cancer Center and College of Medicine, OH, USA
| | - Lanchun Lu
- Department of Radiation Oncology, The Ohio State University James Comprehensive Cancer Center and College of Medicine, OH, 43210, USA
| | - Ioanna Papandreou
- Department of Radiation Oncology, The Ohio State University James Comprehensive Cancer Center and College of Medicine, OH, 43210, USA
| | - Naduparambil K Jacob
- Department of Radiation Oncology, The Ohio State University James Comprehensive Cancer Center and College of Medicine, OH, 43210, USA
| | - Chunhong Yan
- Georgia Cancer Center, Augusta University, Augusta, GA, USA
| | - Xiaoli Zhang
- Department of Biomedical Informatics, College of Medicine, The Ohio State University James Comprehensive Cancer Center and College of Medicine, OH, USA
| | - Qing-Bai She
- Department of Pharmacology and Nutritional Sciences, University of Kentucky College of Medicine, Lexington, KY, 40506, USA
| | - Zhefu Ma
- Department Breast Surgery and Plastic Surgery, Cancer Hospital of China Medical University, 44 Xiaoheyan Road, Dadong District, Shenyang, 110042, China
- Department Breast & Thyroid Surgery, The First Affiliated Hospital, Sun Yat-sen University, No.58 of Zhongshan 2nd Road, Yuexiu District, Guangzhou, 510080, China
| | - Junran Zhang
- Department of Radiation Oncology, The Ohio State University James Comprehensive Cancer Center and College of Medicine, OH, 43210, USA
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25
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Hakala S, Vakkari V, Bianchi F, Dada L, Deng C, Dällenbach KR, Fu Y, Jiang J, Kangasluoma J, Kujansuu J, Liu Y, Petäjä T, Wang L, Yan C, Kulmala M, Paasonen P. Observed coupling between air mass history, secondary growth of nucleation mode particles and aerosol pollution levels in Beijing. Environ Sci Atmos 2022; 2:146-164. [PMID: 35419523 PMCID: PMC8929417 DOI: 10.1039/d1ea00089f] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Accepted: 12/29/2021] [Indexed: 06/14/2023]
Abstract
Atmospheric aerosols have significant effects on the climate and on human health. New particle formation (NPF) is globally an important source of aerosols but its relevance especially towards aerosol mass loadings in highly polluted regions is still controversial. In addition, uncertainties remain regarding the processes leading to severe pollution episodes, concerning e.g. the role of atmospheric transport. In this study, we utilize air mass history analysis in combination with different fields related to the intensity of anthropogenic emissions in order to calculate air mass exposure to anthropogenic emissions (AME) prior to their arrival at Beijing, China. The AME is used as a semi-quantitative metric for describing the effect of air mass history on the potential for aerosol formation. We show that NPF events occur in clean air masses, described by low AME. However, increasing AME seems to be required for substantial growth of nucleation mode (diameter < 30 nm) particles, originating either from NPF or direct emissions, into larger mass-relevant sizes. This finding assists in establishing and understanding the connection between small nucleation mode particles, secondary aerosol formation and the development of pollution episodes. We further use the AME, in combination with basic meteorological variables, for developing a simple and easy-to-apply regression model to predict aerosol volume and mass concentrations. Since the model directly only accounts for changes in meteorological conditions, it can also be used to estimate the influence of emission changes on pollution levels. We apply the developed model to briefly investigate the effects of the COVID-19 lockdown on PM2.5 concentrations in Beijing. While no clear influence directly attributable to the lockdown measures is found, the results are in line with other studies utilizing more widely applied approaches.
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Affiliation(s)
- S Hakala
- Aerosol and Haze Laboratory, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology Beijing China
- Institute for Atmospheric and Earth System Research/Physics, Faculty of Science, University of Helsinki Helsinki Finland
| | - V Vakkari
- Finnish Meteorological Institute Erik Palmenin Aukio 1 Helsinki Finland
- Atmospheric Chemistry Research Group, Chemical Resource Beneficiation, North-West University Potchefstroom South Africa
| | - F Bianchi
- Aerosol and Haze Laboratory, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology Beijing China
- Institute for Atmospheric and Earth System Research/Physics, Faculty of Science, University of Helsinki Helsinki Finland
| | - L Dada
- Aerosol and Haze Laboratory, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology Beijing China
- Institute for Atmospheric and Earth System Research/Physics, Faculty of Science, University of Helsinki Helsinki Finland
- Extreme Environments Research Laboratory, Ecole Polytechnique Fédérale de Lausanne (EPFL) Valais Sion 1951 Switzerland
- Laboratory of Atmospheric Chemistry, Paul Scherrer Institute 5232 Villigen Switzerland
| | - C Deng
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University Beijing China
| | - K R Dällenbach
- Aerosol and Haze Laboratory, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology Beijing China
- Institute for Atmospheric and Earth System Research/Physics, Faculty of Science, University of Helsinki Helsinki Finland
- Laboratory of Atmospheric Chemistry, Paul Scherrer Institute 5232 Villigen Switzerland
| | - Y Fu
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University Beijing China
| | - J Jiang
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University Beijing China
| | - J Kangasluoma
- Aerosol and Haze Laboratory, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology Beijing China
- Institute for Atmospheric and Earth System Research/Physics, Faculty of Science, University of Helsinki Helsinki Finland
| | - J Kujansuu
- Aerosol and Haze Laboratory, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology Beijing China
- Institute for Atmospheric and Earth System Research/Physics, Faculty of Science, University of Helsinki Helsinki Finland
| | - Y Liu
- Aerosol and Haze Laboratory, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology Beijing China
| | - T Petäjä
- Aerosol and Haze Laboratory, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology Beijing China
- Institute for Atmospheric and Earth System Research/Physics, Faculty of Science, University of Helsinki Helsinki Finland
- Joint International Research Laboratory of Atmospheric and Earth System Sciences, Nanjing University Nanjing China
| | - L Wang
- State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry (LAPC), Institute of Atmospheric Physics, Chinese Academy of Sciences Beijing 100029 China
| | - C Yan
- Aerosol and Haze Laboratory, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology Beijing China
- Institute for Atmospheric and Earth System Research/Physics, Faculty of Science, University of Helsinki Helsinki Finland
| | - M Kulmala
- Aerosol and Haze Laboratory, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology Beijing China
- Institute for Atmospheric and Earth System Research/Physics, Faculty of Science, University of Helsinki Helsinki Finland
- Joint International Research Laboratory of Atmospheric and Earth System Sciences, Nanjing University Nanjing China
| | - P Paasonen
- Institute for Atmospheric and Earth System Research/Physics, Faculty of Science, University of Helsinki Helsinki Finland
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26
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Zhang J, Yu G, Yang Y, Wang Y, Guo M, Yin Q, Yan C, Tian J, Fu F, Wang H. A small-molecule inhibitor of MDMX suppresses cervical cancer cells via the inhibition of E6-E6AP-p53 axis. Pharmacol Res 2022; 177:106128. [PMID: 35150860 DOI: 10.1016/j.phrs.2022.106128] [Citation(s) in RCA: 14] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 01/24/2022] [Accepted: 02/08/2022] [Indexed: 02/07/2023]
Abstract
Dysfunction of p53 is observed in many malignant tumors, which is related to cancer susceptibility. In cervical cancer, p53 is primarily degradated through the complex of high-risk human papillomaviruses (HPV) oncoprotein E6 and E6-associated protein (E6AP) ubiquitin ligase. What is less clear is the mechanism and role of murine double minute X (MDMX) in cervical carcinogenesis due to the inactive status of murine double minute 2 (MDM2). In the current study, XI-011 (NSC146109), a small-molecule inhibitor of MDMX, showed robust anti-proliferation activity against several cervical cancer cell lines. XI-011 promoted apoptosis of cervical cancer cells via stabilizing p53 and activating its transcription activity. Moreover, XI-011 inhibited the growth of xenograft tumor in HeLa tumor-bearing mice, as well as enhanced the cytotoxic activity of cisplatin both in vitro and in vivo. Interestingly, MDMX co-locolized with E6AP and seems to be a novel binding partner of E6AP to promote p53 ubiquitination. In conclusion, this work revealed a novel mechanism of ubiquitin-dependent p53 degredation via MDMX-E6AP axis in cervical carcinogenesis, and offered the first evidence that MDMX could be a viable drug target for the treatment of cervical cancer.
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Affiliation(s)
- Jingwen Zhang
- Key laboratory of Molecular Pharmacology and Drug Evalution (Yantai University), Ministry of Education; Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai university, Yantai, China
| | - Guohua Yu
- Department of Pathology, Affiliated Yantai Yuhuangding Hospital, Medical College of Qingdao University, Yantai, China
| | - Yanting Yang
- Key laboratory of Molecular Pharmacology and Drug Evalution (Yantai University), Ministry of Education; Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai university, Yantai, China
| | - Yingjie Wang
- Key laboratory of Molecular Pharmacology and Drug Evalution (Yantai University), Ministry of Education; Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai university, Yantai, China
| | - Mengqi Guo
- Key laboratory of Molecular Pharmacology and Drug Evalution (Yantai University), Ministry of Education; Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai university, Yantai, China
| | - Qikun Yin
- Key laboratory of Molecular Pharmacology and Drug Evalution (Yantai University), Ministry of Education; Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai university, Yantai, China; Bohai Rim Advanced Research Institute for Drug Discovery, Yantai, China
| | - Chunhong Yan
- GRU Cancer Center, Georgia Regents University, Augusta, GA, USA
| | - Jingwei Tian
- Key laboratory of Molecular Pharmacology and Drug Evalution (Yantai University), Ministry of Education; Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai university, Yantai, China
| | - Fenghua Fu
- Key laboratory of Molecular Pharmacology and Drug Evalution (Yantai University), Ministry of Education; Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai university, Yantai, China.
| | - Hongbo Wang
- Key laboratory of Molecular Pharmacology and Drug Evalution (Yantai University), Ministry of Education; Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai university, Yantai, China.
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27
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Fa P, Qiu Z, Wang QE, Yan C, Zhang J. A Novel Role for RNF126 in the Promotion of G2 Arrest via Interaction With 14-3-3σ. Int J Radiat Oncol Biol Phys 2022; 112:542-553. [PMID: 34563636 PMCID: PMC8748417 DOI: 10.1016/j.ijrobp.2021.09.025] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 09/07/2021] [Accepted: 09/13/2021] [Indexed: 02/03/2023]
Abstract
PURPOSE Cell cycle checkpoints and DNA repair are important for cell survival after exogenous DNA damage. Both rapid blockage of G2 to M phase transition in the cell cycle and the maintenance of relatively slow G2 arrest are critical to protect cells from lethal ionizing radiation (IR). Checkpoint kinase 1 is pivotal in blocking the transition from G2 to M phases in response to IR. The 14-3-3σ protein is important for IR-induced G2 arrest maintenance in which p53-dependent 14-3-3σ transcription is involved. It has been demonstrated that Ring finger protein 126 (RNF126), an E3 ligase, is required to upregulate checkpoint kinase 1 expression. Thus, our goal was to study the role of RNF126 in the G2/M phase checkpoint. METHODS AND MATERIALS The transition from G2 to M phases and G2 accumulation in response to IR were determined by flow cytometry through staining with phospho-histone H3 (pS10) antibody and propidium iodide, respectively. The interaction of RNF126 and 14-3-3σ was determined by GST-pulldown and coimmunoprecipitation assays. The stability of RNF126 and 14-3-3σ was determined by cycloheximide-based stability assay and ubiquitination detection by coimmunoprecipitation. The sequestering of cyclin-dependent kinase 1 and cyclin B1 from the nucleus was determined by immunofluorescence staining. RESULTS RNF126 knockdown had no impact on the IR-induced transient blockage of G2 to M but impaired IR-induced G2 arrest maintenance in cells with or without wild-type p53. Mechanistically, RNF126 binds 14-3-3σ and prevents both proteins from ubiquitination-mediated degradation. Last, RNF126 is required for enforcing the cytoplasmic sequestration of cyclin B1 and cyclin-dependent kinase 1 proteins in response to IR. CONCLUSIONS RNF126 promotes G2 arrest via interaction with 14-3-3σ in response to IR. Our study revealed a novel role for RNF126 in promoting G2 arrest, providing a new target for cancer treatment.
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Affiliation(s)
- Pengyan Fa
- Department of Radiation Oncology, The Ohio State University James Comprehensive Cancer Center and College of Medicine, OH, USA
| | - Zhaojun Qiu
- Department of Radiation Oncology, The Ohio State University James Comprehensive Cancer Center and College of Medicine, OH, USA
| | - Qi-En Wang
- Department of Radiation Oncology, The Ohio State University James Comprehensive Cancer Center and College of Medicine, OH, USA
| | - Chunhong Yan
- Georgia Cancer Center, Augusta University, Augusta, GA, USA
| | - Junran Zhang
- Department of Radiation Oncology, The Ohio State University James Comprehensive Cancer Center and College of Medicine, OH, USA,Corresponding author: Junran Zhang,
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Yan C, Sack JS. X-ray structure of a human cardiac muscle troponin C/troponin I chimera in two crystal forms. Acta Crystallogr F Struct Biol Commun 2022; 78:17-24. [PMID: 34981771 PMCID: PMC8725003 DOI: 10.1107/s2053230x21012395] [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: 09/27/2021] [Accepted: 11/22/2021] [Indexed: 01/03/2023] Open
Abstract
The X-ray crystal structure of a human cardiac muscle troponin C/troponin I chimera has been determined in two different crystal forms and shows a conformation of the complex that differs from that previously observed by NMR. The chimera consists of the N-terminal domain of troponin C (cTnC; residues 1-80) fused to the switch region of troponin I (cTnI; residues 138-162). In both crystal forms, the cTnI residues form a six-turn α-helix that lays across the hydrophobic groove of an adjacent cTnC molecule in the crystal structure. In contrast to previous models, the cTnI helix runs in a parallel direction relative to the cTnC groove and completely blocks the calcium desensitizer binding site of the cTnC-cTnI interface.
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Affiliation(s)
- Chunhong Yan
- Small Molecule Drug Discovery, Bristol Myers Squibb Research and Development, PO Box 4000, Princeton, NJ 08543-4000, USA
| | - John S. Sack
- Small Molecule Drug Discovery, Bristol Myers Squibb Research and Development, PO Box 4000, Princeton, NJ 08543-4000, USA,Correspondence e-mail:
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You Y, Song H, Yan C, Ai C, Tong Y, Zhu BW, Song S. Dietary fibers obtained from Caulerpa lentillifera prevent high-fat diet-induced mice obesity by regulating gut microbiota and metabolites profiles. Food Funct 2022; 13:11262-11272. [DOI: 10.1039/d2fo01632j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
With the expansion of farming and increasing consumption, Caulerpa lentillifera has received extensive attention. In the present study, the physicochemical properties of insoluble dietary fiber from C. lentillifera (CL-IDF) were...
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Li C, Yan C, Sun Q, Wang J, Yuan C, Mou Y, Shan S, Zhao X. Proteomic profiling of Arachis hypogaea in response to drought stress and overexpression of AhLEA2 improves drought tolerance. Plant Biol (Stuttg) 2022; 24:75-84. [PMID: 34694687 DOI: 10.1111/plb.13351] [Citation(s) in RCA: 2] [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] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Accepted: 09/09/2021] [Indexed: 06/13/2023]
Abstract
Drought is the main factor restricting peanut growth, but the molecular mechanism underlying peanut drought tolerance remains unclear. Herein, the seedling stage of drought-resistant peanut cultivar J11 was subjected to drought stress, and its proteomic profile was systematically analysed by isobaric tags for relative and absolute quantification (iTRAQ), the results of which were further complemented with our previous transcriptome results. A total of 4,018 proteins were identified by proteomic analysis, which revealed that the expression levels of 69 proteins were altered under drought stress. Among the differentially expressed proteins (DEPs), 50 were upregulated, and 19 were downregulated. The most enriched metabolic pathways for these DEPs were those involving phenylpropanoid biosynthesis, flavonoid biosynthesis, and plant hormone signal transduction. The proteomic data and previous transcriptome results revealed 44 groups of genes/proteins with the same expression trend, including a LEA (Late embryogenesis abundant) gene, AhLEA2. Our present study showed that overexpression of the AhLEA2 gene enhanced the drought resistance of transgenic Arabidopsis plants, and the activities of related antioxidant enzymes in the transgenic plants significantly changed. The AhLEA2 gene was found to be located in the cytoplasm and cell membrane by subcellular localization experiments. This work systematically analysed the differentially expressed proteins in peanut in response to drought stress, providing important candidates for further functional analysis of the stress response of peanut. Our results also indicated that AhLEA2 plays an important role in the peanut response to drought stress.
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Affiliation(s)
- C Li
- Department of Breeding, Shandong Peanut Research Institute, Qingdao, China
| | - C Yan
- Department of Breeding, Shandong Peanut Research Institute, Qingdao, China
| | - Q Sun
- Department of Breeding, Shandong Peanut Research Institute, Qingdao, China
| | - J Wang
- Department of Breeding, Shandong Peanut Research Institute, Qingdao, China
| | - C Yuan
- Department of Breeding, Shandong Peanut Research Institute, Qingdao, China
| | - Y Mou
- Department of Breeding, Shandong Peanut Research Institute, Qingdao, China
| | - S Shan
- Department of Breeding, Shandong Peanut Research Institute, Qingdao, China
| | - X Zhao
- Department of Breeding, Shandong Peanut Research Institute, Qingdao, China
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Yan C, Gajdos S, Ramalingam A, Fromm M, Suh J, Xia P. Comparing Collapsed Cone Convolution Algorithm With Acuros and Its Implication on NRG Clinical Trials. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Hill MD, Quesnelle C, Tokarski J, Fang H, Fanslau C, Haarhoff Z, Kramer M, Madari S, Wiebesiek A, Morrison J, Simmermacher-Mayer J, Sinz M, Westhouse R, Xie C, Zhao J, Huang L, Sheriff S, Yan C, Marsilio F, Everlof G, Zvyaga T, Lee F, Gavai AV, Degnan AP. Development of BET inhibitors as potential treatments for cancer: A new carboline chemotype. Bioorg Med Chem Lett 2021; 51:128376. [PMID: 34560263 DOI: 10.1016/j.bmcl.2021.128376] [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: 06/29/2021] [Revised: 09/05/2021] [Accepted: 09/15/2021] [Indexed: 11/27/2022]
Abstract
We describe our efforts to introduce structural diversity to a previously described triazole-containing N1-carboline series of bromodomain and extra-terminal (BET) inhibitors. N9 carbolines were designed to retain favorable binding interactions that the N1-carbolines possess. A convergent synthetic route enabled modifications to reduce clearance, enhance physicochemical properties, and improve the overall in vitro profile. This work led to the identification of a potent BET inhibitor, (S)-2-{8-fluoro-5-[(3-fluoropyridin-2-yl)(oxan-4-yl)methyl]-7-[4-(2H3)methyl-1-methyl-1H-1,2,3-triazol-5-yl]-5H-pyrido[3,2-b]indol-3-yl}propan-2-ol (10), a compound with enhanced oral exposure in mice. Subsequent evaluation in a mouse triple-negative breast cancer tumor model revealed efficacy at 4 mg/kg of N9-carboline 10.
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Affiliation(s)
- Matthew D Hill
- Bristol Myers Squibb Research and Development, 100 Binney St, Cambridge, MA 02142-1096, USA.
| | - Claude Quesnelle
- Bristol Myers Squibb Research and Development, 100 Binney St, Cambridge, MA 02142-1096, USA
| | - John Tokarski
- Bristol Myers Squibb Research and Development, 100 Binney St, Cambridge, MA 02142-1096, USA
| | - Haiquan Fang
- Bristol Myers Squibb Research and Development, 100 Binney St, Cambridge, MA 02142-1096, USA
| | - Carolynn Fanslau
- Bristol Myers Squibb Research and Development, 100 Binney St, Cambridge, MA 02142-1096, USA
| | - Zuzana Haarhoff
- Bristol Myers Squibb Research and Development, 100 Binney St, Cambridge, MA 02142-1096, USA
| | - Melissa Kramer
- Bristol Myers Squibb Research and Development, 100 Binney St, Cambridge, MA 02142-1096, USA
| | - Shilpa Madari
- Bristol Myers Squibb Research and Development, 100 Binney St, Cambridge, MA 02142-1096, USA
| | - Amy Wiebesiek
- Bristol Myers Squibb Research and Development, 100 Binney St, Cambridge, MA 02142-1096, USA
| | - John Morrison
- Bristol Myers Squibb Research and Development, 100 Binney St, Cambridge, MA 02142-1096, USA
| | | | - Michael Sinz
- Bristol Myers Squibb Research and Development, 100 Binney St, Cambridge, MA 02142-1096, USA
| | - Richard Westhouse
- Bristol Myers Squibb Research and Development, 100 Binney St, Cambridge, MA 02142-1096, USA
| | - Chunshan Xie
- Bristol Myers Squibb Research and Development, 100 Binney St, Cambridge, MA 02142-1096, USA
| | - Jiuqiao Zhao
- Bristol Myers Squibb Research and Development, 100 Binney St, Cambridge, MA 02142-1096, USA
| | - Lisa Huang
- Bristol Myers Squibb Research and Development, 100 Binney St, Cambridge, MA 02142-1096, USA
| | - Steven Sheriff
- Bristol Myers Squibb Research and Development, 100 Binney St, Cambridge, MA 02142-1096, USA
| | - Chunhong Yan
- Bristol Myers Squibb Research and Development, 100 Binney St, Cambridge, MA 02142-1096, USA
| | - Frank Marsilio
- Bristol Myers Squibb Research and Development, 100 Binney St, Cambridge, MA 02142-1096, USA
| | - Gerry Everlof
- Bristol Myers Squibb Research and Development, 100 Binney St, Cambridge, MA 02142-1096, USA
| | - Tatyana Zvyaga
- Bristol Myers Squibb Research and Development, 100 Binney St, Cambridge, MA 02142-1096, USA
| | - Francis Lee
- Bristol Myers Squibb Research and Development, 100 Binney St, Cambridge, MA 02142-1096, USA
| | - Ashvinikumar V Gavai
- Bristol Myers Squibb Research and Development, 100 Binney St, Cambridge, MA 02142-1096, USA
| | - Andrew P Degnan
- Bristol Myers Squibb Research and Development, 100 Binney St, Cambridge, MA 02142-1096, USA
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Gavai AV, Norris D, Delucca G, Tortolani D, Tokarski JS, Dodd D, O'Malley D, Zhao Y, Quesnelle C, Gill P, Vaccaro W, Huynh T, Ahuja V, Han WC, Mussari C, Harikrishnan L, Kamau M, Poss M, Sheriff S, Yan C, Marsilio F, Menard K, Wen ML, Rampulla R, Wu DR, Li J, Zhang H, Li P, Sun D, Yip H, Traeger SC, Zhang Y, Mathur A, Zhang H, Huang C, Yang Z, Ranasinghe A, Everlof G, Raghavan N, Tye CK, Wee S, Hunt JT, Vite G, Westhouse R, Lee FY. Discovery and Preclinical Pharmacology of an Oral Bromodomain and Extra-Terminal (BET) Inhibitor Using Scaffold-Hopping and Structure-Guided Drug Design. J Med Chem 2021; 64:14247-14265. [PMID: 34543572 DOI: 10.1021/acs.jmedchem.1c00625] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Inhibition of the bromodomain and extra-terminal (BET) family of adaptor proteins is an attractive strategy for targeting transcriptional regulation of key oncogenes, such as c-MYC. Starting with the screening hit 1, a combination of structure-activity relationship and protein structure-guided drug design led to the discovery of a differently oriented carbazole 9 with favorable binding to the tryptophan, proline, and phenylalanine (WPF) shelf conserved in the BET family. Identification of an additional lipophilic pocket and functional group optimization to optimize pharmacokinetic (PK) properties culminated in the discovery of 18 (BMS-986158) with excellent potency in binding and functional assays. On the basis of its favorable PK profile and robust in vivo activity in a panel of hematologic and solid tumor models, BMS-986158 was selected as a candidate for clinical evaluation.
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Affiliation(s)
- Ashvinikumar V Gavai
- Research and Development, Bristol Myers Squibb Company, P. O. Box 4000, Princeton, New Jersey 08543-4000, United States
| | - Derek Norris
- Research and Development, Bristol Myers Squibb Company, P. O. Box 4000, Princeton, New Jersey 08543-4000, United States
| | - George Delucca
- Research and Development, Bristol Myers Squibb Company, P. O. Box 4000, Princeton, New Jersey 08543-4000, United States
| | - David Tortolani
- Research and Development, Bristol Myers Squibb Company, P. O. Box 4000, Princeton, New Jersey 08543-4000, United States
| | - John S Tokarski
- Research and Development, Bristol Myers Squibb Company, P. O. Box 4000, Princeton, New Jersey 08543-4000, United States
| | - Dharmpal Dodd
- Research and Development, Bristol Myers Squibb Company, P. O. Box 4000, Princeton, New Jersey 08543-4000, United States
| | - Daniel O'Malley
- Research and Development, Bristol Myers Squibb Company, P. O. Box 4000, Princeton, New Jersey 08543-4000, United States
| | - Yufen Zhao
- Research and Development, Bristol Myers Squibb Company, P. O. Box 4000, Princeton, New Jersey 08543-4000, United States
| | - Claude Quesnelle
- Research and Development, Bristol Myers Squibb Company, P. O. Box 4000, Princeton, New Jersey 08543-4000, United States
| | - Patrice Gill
- Research and Development, Bristol Myers Squibb Company, P. O. Box 4000, Princeton, New Jersey 08543-4000, United States
| | - Wayne Vaccaro
- Research and Development, Bristol Myers Squibb Company, P. O. Box 4000, Princeton, New Jersey 08543-4000, United States
| | - Tram Huynh
- Research and Development, Bristol Myers Squibb Company, P. O. Box 4000, Princeton, New Jersey 08543-4000, United States
| | - Vijay Ahuja
- Research and Development, Bristol Myers Squibb Company, P. O. Box 4000, Princeton, New Jersey 08543-4000, United States
| | - Wen-Ching Han
- Research and Development, Bristol Myers Squibb Company, P. O. Box 4000, Princeton, New Jersey 08543-4000, United States
| | - Christopher Mussari
- Research and Development, Bristol Myers Squibb Company, P. O. Box 4000, Princeton, New Jersey 08543-4000, United States
| | - Lalgudi Harikrishnan
- Research and Development, Bristol Myers Squibb Company, P. O. Box 4000, Princeton, New Jersey 08543-4000, United States
| | - Muthoni Kamau
- Research and Development, Bristol Myers Squibb Company, P. O. Box 4000, Princeton, New Jersey 08543-4000, United States
| | - Michael Poss
- Research and Development, Bristol Myers Squibb Company, P. O. Box 4000, Princeton, New Jersey 08543-4000, United States
| | - Steven Sheriff
- Research and Development, Bristol Myers Squibb Company, P. O. Box 4000, Princeton, New Jersey 08543-4000, United States
| | - Chunhong Yan
- Research and Development, Bristol Myers Squibb Company, P. O. Box 4000, Princeton, New Jersey 08543-4000, United States
| | - Frank Marsilio
- Research and Development, Bristol Myers Squibb Company, P. O. Box 4000, Princeton, New Jersey 08543-4000, United States
| | - Krista Menard
- Research and Development, Bristol Myers Squibb Company, P. O. Box 4000, Princeton, New Jersey 08543-4000, United States
| | - Mei-Li Wen
- Research and Development, Bristol Myers Squibb Company, P. O. Box 4000, Princeton, New Jersey 08543-4000, United States
| | - Richard Rampulla
- Research and Development, Bristol Myers Squibb Company, P. O. Box 4000, Princeton, New Jersey 08543-4000, United States
| | - Dauh-Rurng Wu
- Research and Development, Bristol Myers Squibb Company, P. O. Box 4000, Princeton, New Jersey 08543-4000, United States
| | - Jianqing Li
- Research and Development, Bristol Myers Squibb Company, P. O. Box 4000, Princeton, New Jersey 08543-4000, United States
| | - Huiping Zhang
- Research and Development, Bristol Myers Squibb Company, P. O. Box 4000, Princeton, New Jersey 08543-4000, United States
| | - Peng Li
- Research and Development, Bristol Myers Squibb Company, P. O. Box 4000, Princeton, New Jersey 08543-4000, United States
| | - Dawn Sun
- Research and Development, Bristol Myers Squibb Company, P. O. Box 4000, Princeton, New Jersey 08543-4000, United States
| | - Henry Yip
- Research and Development, Bristol Myers Squibb Company, P. O. Box 4000, Princeton, New Jersey 08543-4000, United States
| | - Sarah C Traeger
- Research and Development, Bristol Myers Squibb Company, P. O. Box 4000, Princeton, New Jersey 08543-4000, United States
| | - Yingru Zhang
- Research and Development, Bristol Myers Squibb Company, P. O. Box 4000, Princeton, New Jersey 08543-4000, United States
| | - Arvind Mathur
- Research and Development, Bristol Myers Squibb Company, P. O. Box 4000, Princeton, New Jersey 08543-4000, United States
| | - Haiying Zhang
- Research and Development, Bristol Myers Squibb Company, P. O. Box 4000, Princeton, New Jersey 08543-4000, United States
| | - Christine Huang
- Research and Development, Bristol Myers Squibb Company, P. O. Box 4000, Princeton, New Jersey 08543-4000, United States
| | - Zheng Yang
- Research and Development, Bristol Myers Squibb Company, P. O. Box 4000, Princeton, New Jersey 08543-4000, United States
| | - Asoka Ranasinghe
- Research and Development, Bristol Myers Squibb Company, P. O. Box 4000, Princeton, New Jersey 08543-4000, United States
| | - Gerry Everlof
- Research and Development, Bristol Myers Squibb Company, P. O. Box 4000, Princeton, New Jersey 08543-4000, United States
| | - Nirmala Raghavan
- Research and Development, Bristol Myers Squibb Company, P. O. Box 4000, Princeton, New Jersey 08543-4000, United States
| | - Ching Kim Tye
- Research and Development, Bristol Myers Squibb Company, P. O. Box 4000, Princeton, New Jersey 08543-4000, United States
| | - Susan Wee
- Research and Development, Bristol Myers Squibb Company, P. O. Box 4000, Princeton, New Jersey 08543-4000, United States
| | - John T Hunt
- Research and Development, Bristol Myers Squibb Company, P. O. Box 4000, Princeton, New Jersey 08543-4000, United States
| | - Gregory Vite
- Research and Development, Bristol Myers Squibb Company, P. O. Box 4000, Princeton, New Jersey 08543-4000, United States
| | - Richard Westhouse
- Research and Development, Bristol Myers Squibb Company, P. O. Box 4000, Princeton, New Jersey 08543-4000, United States
| | - Francis Y Lee
- Research and Development, Bristol Myers Squibb Company, P. O. Box 4000, Princeton, New Jersey 08543-4000, United States
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Qian Z, Yan C, Sijiu Y, Junfeng H, Yangyang P, Zhanchun B. Immunity cells in the small intestinal mucosa of newborn yaks. Folia Morphol (Warsz) 2021; 81:91-100. [PMID: 34642930 DOI: 10.5603/fm.a2021.0102] [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: 06/16/2021] [Revised: 09/08/2021] [Accepted: 09/08/2021] [Indexed: 11/25/2022]
Abstract
BACKGROUND This study aimed to characterize and evaluate the main markers of T lymphocytes, B lymphocytes, immunoglobulin (Ig) A and IgG plasmocytes, macrophages, and dendritic cells of the intestinal mucosa of newborn yaks. MATERIALS AND METHODS Ten newborn yaks (2-4 weeks old) were choosed. Immunohistochemistry and real-time quantitative polymerase chain reaction were used to analyze the immune cell distribution and specific markers at the mRNA expression level in the duodenum, jejunum, and ileum. RESULTS The results showed in the epithelium, CD3-positive T lymphocyte levels were higher than other immune cell levels (P<0.05). Additionally, in the lamina propria, the number of cells positive for CD3, CD68, and signal inhibitory regulatory protein alpha (SIRPα) were higher in the villi, while CD79α, IgA, and IgG cells were more common at the base of the crypt. Moreover, both in the epithelium and lamina propria, the number of CD3, CD68 and SIRPα were decreased from the duodenum to the ileum (P<0.05), additionally the number of CD79α, IgA and IgG positive cells were increased from the duodenum to the ileum of newborn yaks (P<0.05). Furthermore, the mRNA expression levels of CD3ε, CD68, and SIRPα increased from the duodenum to the ileum (P<0.05), while the mRNA expression levels of CD79α, IgA, and IgG decreased from the duodenum to the ileum. CONCLUSIONS Immunohistochemical characterization and expression levels of immune factors in the small intestinal mucosa of newborn yaks suggest that the intestinal mucosa is an important part of the natural barrier and provides useful references for immunity functions of newborn yak intestinal mucosa.
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Affiliation(s)
- Z Qian
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, Gansu, China.
| | - C Yan
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, Gansu, China
| | - Y Sijiu
- Gansu Province Livestock Embryo Engineering Research Center, College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, Gansu, China
| | - H Junfeng
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, Gansu, China
| | - P Yangyang
- Gansu Province Livestock Embryo Engineering Research Center, College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, Gansu, China
| | - B Zhanchun
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, Gansu, China
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Zhao M, Yang F, Sang C, Yan C, Wang Z. BGL3 inhibits papillary thyroid carcinoma progression via regulating PTEN stability. J Endocrinol Invest 2021; 44:2165-2174. [PMID: 33543443 DOI: 10.1007/s40618-021-01519-2] [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] [Received: 12/28/2020] [Accepted: 01/23/2021] [Indexed: 02/06/2023]
Abstract
PURPOSE BGL3, a novel long non-coding RNA (lncRNA) that plays a crucial role in several human malignancies. However, the clinical significance and biological function of BGL3 in papillary thyroid carcinoma (PTC) have not been explored. Herein, we aimed to investigate the role of BGL3 in human PTC. METHODS A total of 85 pairs of PTC and normal tissues were collected for clinicopathological analysis. Expression of BGL3 was determined by quantitative real-time polymerase chain reaction (qRT-PCR). The effects of BGL3 on PTC cells ware determined by CCK-8, colony formation, EdU and wound healing assays. The molecular mechanism underlying BGL3 was tested by ChIP, Co-IP, RNA pull-down and luciferase reporter assays. In vivo experiments were conducted using xenografts in nude mice. RESULTS BGL3 was significantly decreased in PTC tissues compared to adjacent normal thyroid tissues, and it was transcriptionally repressed by oncogene Myc. Low BGL3 is positively related to larger tumor size, lymph node metastasis, later TNM stage and poor prognosis. Overexpression of BGL3 inhibited PTC cell proliferation and migration in vitro, and reduced tumor size and lung metastasis nodules in vivo. BGL3 was mainly located in the cytoplasm, in which interacted with PTEN and recruited OTUD3, enhancing the de-ubiquitination effect of OTUD3 on PTEN, resulting in increasing PTEN protein stability and inactivating carcinogenic PI3K/AKT signaling. CONCLUSIONS Our data underscore the critical tumor-inhibiting role of BGL3 in PTC via post-translational regulation of PTEN protein stability, which may serve as a novel therapeutic target and prognostic biomarker in human PTC.
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Affiliation(s)
- M Zhao
- Department of General Surgery, Yanqing District Hospital, Beijing and Yanqing Hospital, Peking University Third Hospital, Beijing, People's Republic of China
| | - F Yang
- Department of Orthopedics, Yanqing District Hospital, Beijing and Yanqing Hospital, Peking University Third Hospital, Beijing, People's Republic of China
| | - C Sang
- Department of General Surgery, Yanqing District Hospital, Beijing and Yanqing Hospital, Peking University Third Hospital, Beijing, People's Republic of China
| | - C Yan
- Department of General Surgery, Yanqing District Hospital, Beijing and Yanqing Hospital, Peking University Third Hospital, Beijing, People's Republic of China
| | - Z Wang
- Department of General Surgery, Beijing Chaoyang Hospital, Capital Medical University, Beijing, People's Republic of China.
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Yan C, Wang M, Sun F, Cao L, Jia B, Xia Y. Macrophage M1/M2 ratio as a predictor of pleural thickening in patients with tuberculous pleurisy. Infect Dis Now 2021; 51:590-595. [PMID: 34581278 DOI: 10.1016/j.idnow.2020.11.013] [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: 11/17/2020] [Revised: 11/23/2020] [Accepted: 11/27/2020] [Indexed: 10/22/2022]
Abstract
We evaluated the association between macrophage polarization and the development of pleural thickening in patients with tuberculous pleurisy. Patients with tuberculous pleurisy admitted to our hospital between October 2018 and March 2019 were prospectively recruited. Pleural fluid samples were obtained before treatment for detection of adenosine deaminase (ADA) and macrophage phenotype (M1: CD14+ CD86+; M2: CD14+ CD163+). Peripheral blood samples were subjected to interferon gamma release assay (IGRA). All subjects were administered standard anti-tuberculosis regimen (2HREZ/4HR); high-resolution CT was performed to determine pleural thickening (thickness>2mm) after completion of treatment. Pleural effusion in patients with thickened pleura had significantly more M1 but fewer M2 macrophages, and higher ADA level, as compared to those with normal pleura (P<0.05). No significant between-group difference was observed with respect to IGRA. In receiver operating characteristic (ROC) curve analysis, the optimal cut-off level of M1/M2 ratio for predicting pleural thickening was 1.149 (area under the curve: 0.842; sensitivity: 88.6%; specificity: 69.2%; positive predictive value: 86.3%; negative predictive value: 81.7%). M1/M2 ratio in the pleural fluid is a promising marker for predicting the development of pleural thickening in patients with tuberculous pleurisy. Macrophage-mediated immune response may play an important role in the pathogenesis of tuberculous pleurisy.
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Affiliation(s)
- C Yan
- Department of Respiratory Diseases, the First Affiliated Hospital of Xinjiang Medical University, 830054 Urumqi, Xinjiang, China
| | - M Wang
- Xinjiang Medical University, 830054 Urumqi, Xinjiang, China
| | - F Sun
- Department of Respiratory Diseases, the First Affiliated Hospital of Xinjiang Medical University, 830054 Urumqi, Xinjiang, China.
| | - L Cao
- Department of Clinical Laboratory, the First Affiliated Hospital of Xinjiang Medical University, 830054 Urumqi, Xinjiang, China
| | - B Jia
- Department of Respiratory Diseases, the First Affiliated Hospital of Xinjiang Medical University, 830054 Urumqi, Xinjiang, China
| | - Y Xia
- Department of Respiratory Diseases, the First Affiliated Hospital of Xinjiang Medical University, 830054 Urumqi, Xinjiang, China
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Li X, Gracilla D, Cai L, Zhang M, Yu X, Chen X, Zhang J, Long X, Ding HF, Yan C. ATF3 promotes the serine synthesis pathway and tumor growth under dietary serine restriction. Cell Rep 2021; 36:109706. [PMID: 34551291 PMCID: PMC8491098 DOI: 10.1016/j.celrep.2021.109706] [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: 01/15/2021] [Revised: 07/23/2021] [Accepted: 08/23/2021] [Indexed: 11/24/2022] Open
Abstract
The serine synthesis pathway (SSP) involving metabolic enzymes phosphoglycerate dehydrogenase (PHGDH), phosphoserine aminotransferase 1 (PSAT1), and phosphoserine phosphatase (PSPH) drives intracellular serine biosynthesis and is indispensable for cancer cells to grow in serine-limiting environments. However, how SSP is regulated is not well understood. Here, we report that activating transcription factor 3 (ATF3) is crucial for transcriptional activation of SSP upon serine deprivation. ATF3 is rapidly induced by serine deprivation via a mechanism dependent on ATF4, which in turn binds to ATF4 and increases the stability of this master regulator of SSP. ATF3 also binds to the enhancers/promoters of PHGDH, PSAT1, and PSPH and recruits p300 to promote expression of these SSP genes. As a result, loss of ATF3 expression impairs serine biosynthesis and the growth of cancer cells in the serine-deprived medium or in mice fed with a serine/glycine-free diet. Interestingly, ATF3 expression positively correlates with PHGDH expression in a subset of TCGA cancer samples. Activation of the serine synthesis pathway is important for cancer cell growth, but how this pathway is regulated is not well understood. Li et al. report that ATF3 is an important regulator of this pathway and can promote serine biosynthesis and tumor growth under serine-limiting conditions.
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Affiliation(s)
- Xingyao Li
- Georgia Cancer Center, Augusta University, Augusta, GA 30912, USA
| | - Daniel Gracilla
- Georgia Cancer Center, Augusta University, Augusta, GA 30912, USA
| | - Lun Cai
- Georgia Cancer Center, Augusta University, Augusta, GA 30912, USA
| | - Mingyi Zhang
- Georgia Cancer Center, Augusta University, Augusta, GA 30912, USA; Institute of Materia Medica, Peking Union Medical College, Beijing 100050, China
| | - Xiaolin Yu
- Georgia Cancer Center, Augusta University, Augusta, GA 30912, USA
| | - Xiaoguang Chen
- Institute of Materia Medica, Peking Union Medical College, Beijing 100050, China
| | - Junran Zhang
- Department of Radiation Oncology, Ohio State University James Comprehensive Cancer Center and College of Medicine, Columbus, OH 43210, USA
| | - Xiaochun Long
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
| | - Han-Fei Ding
- Georgia Cancer Center, Augusta University, Augusta, GA 30912, USA; Department of Pathology, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
| | - Chunhong Yan
- Georgia Cancer Center, Augusta University, Augusta, GA 30912, USA; Department of Biochemistry and Molecular Biology, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA.
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Yu Y, Ding J, Zhu S, Alptekin A, Dong Z, Yan C, Zha Y, Ding HF. Therapeutic targeting of both dihydroorotate dehydrogenase and nucleoside transport in MYCN-amplified neuroblastoma. Cell Death Dis 2021; 12:821. [PMID: 34462431 PMCID: PMC8405683 DOI: 10.1038/s41419-021-04120-w] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 08/10/2021] [Accepted: 08/20/2021] [Indexed: 02/06/2023]
Abstract
Metabolic reprogramming is an integral part of the growth-promoting program driven by the MYC family of oncogenes. However, this reprogramming also imposes metabolic dependencies that could be exploited therapeutically. Here we report that the pyrimidine biosynthetic enzyme dihydroorotate dehydrogenase (DHODH) is an attractive therapeutic target for MYCN-amplified neuroblastoma, a childhood cancer with poor prognosis. Gene expression profiling and metabolomic analysis reveal that MYCN promotes pyrimidine nucleotide production by transcriptional upregulation of DHODH and other enzymes of the pyrimidine-synthesis pathway. Genetic and pharmacological inhibition of DHODH suppresses the proliferation and tumorigenicity of MYCN-amplified neuroblastoma cell lines. Furthermore, we obtain evidence suggesting that serum uridine is a key factor in determining the efficacy of therapeutic agents that target DHODH. In the presence of physiological concentrations of uridine, neuroblastoma cell lines are highly resistant to DHODH inhibition. This uridine-dependent resistance to DHODH inhibitors can be abrogated by dipyridamole, an FDA-approved drug that blocks nucleoside transport. Importantly, dipyridamole synergizes with DHODH inhibition to suppress neuroblastoma growth in animal models. These findings suggest that a combination of targeting DHODH and nucleoside transport is a promising strategy to overcome intrinsic resistance to DHODH-based cancer therapeutics.
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Affiliation(s)
- Yajie Yu
- Institute of Neural Regeneration and Repair and Department of Neurology, The First Hospital of Yichang, Three Gorges University College of Medicine, Yichang, 443000, China
| | - Jane Ding
- Georgia Cancer Center, Medical College of Georgia, Augusta University, Augusta, Georgia, 30912, USA
| | - Shunqin Zhu
- School of Life Sciences, Southwest University, Chongqing, 400715, China
| | - Ahmet Alptekin
- Georgia Cancer Center, Medical College of Georgia, Augusta University, Augusta, Georgia, 30912, USA
| | - Zheng Dong
- Department of Cell Biology and Anatomy, Medical College of Georgia, Augusta University, Augusta, Georgia, 30912, USA
- Charlie Norwood VA Medical Center, Augusta, GA, 30904, USA
| | - Chunhong Yan
- Georgia Cancer Center, Medical College of Georgia, Augusta University, Augusta, Georgia, 30912, USA
- Department of Biochemistry and Molecular Biology, Medical College of Georgia, Augusta University, Augusta, Georgia, 30912, USA
| | - Yunhong Zha
- Institute of Neural Regeneration and Repair and Department of Neurology, The First Hospital of Yichang, Three Gorges University College of Medicine, Yichang, 443000, China.
| | - Han-Fei Ding
- Georgia Cancer Center, Medical College of Georgia, Augusta University, Augusta, Georgia, 30912, USA.
- Department of Biochemistry and Molecular Biology, Medical College of Georgia, Augusta University, Augusta, Georgia, 30912, USA.
- Department of Pathology, Medical College of Georgia, Augusta University, Augusta, Georgia, 30912, USA.
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Hu S, Luan X, Wu H, Wang X, Yan C, Wang J, Liu G, He W. ACCV: automatic classification algorithm of cataract video based on deep learning. Biomed Eng Online 2021; 20:78. [PMID: 34353324 PMCID: PMC8340478 DOI: 10.1186/s12938-021-00906-3] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Accepted: 07/05/2021] [Indexed: 12/26/2022] Open
Abstract
PURPOSE A real-time automatic cataract-grading algorithm based on cataract video is proposed. MATERIALS AND METHODS In this retrospective study, we set the video of the eye lens section as the research target. A method is proposed to use YOLOv3 to assist in positioning, to automatically identify the position of the lens and classify the cataract after color space conversion. The data set is a cataract video file of 38 people's 76 eyes collected by a slit lamp. Data were collected using five random manner, the method aims to reduce the influence on the collection algorithm accuracy. The video length is within 10 s, and the classified picture data are extracted from the video file. A total of 1520 images are extracted from the image data set, and the data set is divided into training set, validation set and test set according to the ratio of 7:2:1. RESULTS We verified it on the 76-segment clinical data test set and achieved the accuracy of 0.9400, with the AUC of 0.9880, and the F1 of 0.9388. In addition, because of the color space recognition method, the detection per frame can be completed within 29 microseconds and thus the detection efficiency has been improved significantly. CONCLUSION With the efficiency and effectiveness of this algorithm, the lens scan video is used as the research object, which improves the accuracy of the screening. It is closer to the actual cataract diagnosis and treatment process, and can effectively improve the cataract inspection ability of non-ophthalmologists. For cataract screening in poor areas, the accessibility of ophthalmology medical care is also increased.
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Affiliation(s)
- Shenming Hu
- College of Medicine and Biological Information Engineering, Northeastern University, Shenyang, 110016, China
| | | | - Hong Wu
- Shenyang Eyerobo Co., Ltd., Shenyang, 110000, China
| | | | - Chunhong Yan
- He Eye Specialists Hospital, Shenyang, 110000, China
| | | | - Guantong Liu
- He Eye Specialists Hospital, Shenyang, 110000, China
| | - Wei He
- He Eye Specialists Hospital, Shenyang, 110000, China.
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Hua H, Dong X, Zhang Y, Fang F, Zhang B, Li X, Yu Q, Zheng K, Yan C. [rCsHscB derived from Clonorchis sinensis has therapeutic effect on dextran sodium sulfate-induced chronic ulcerative colitis in mice]. Nan Fang Yi Ke Da Xue Xue Bao 2021; 41:664-670. [PMID: 34134952 DOI: 10.12122/j.issn.1673-4254.2021.05.05] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
OBJECTIVE To investigate the therapeutic effect of rCsHscB derived from Clonorchis sinensis on dextran sodium sulfate (DSS)-induced chronic ulcerative colitis in mice. OBJECTIVE C57BL/6 mice were randomized into negative control (NC) group (n= 10), rCsHscB group (n=10), DSS group (n=15), and DSS+rCsHscB group (n=15), and in the latter two groups, chronic ulcerative colitis was induced in the mice using 2% DSS. In rCsHscB and DSS+ rCsHscB groups, the mice received intraperitoneal injections of 125 μg/mL rCsHscB on the 4th and 7th day following DSS administration, and PBS was injected in the other two groups. The mice were euthanized on the 84th day, and pathological changes of the colon were evaluated by HE and Masson staining. The levels of CD4+ and CD8+ T cells in the peripheral blood and lamina propria gastric lymphocytes (LPL) were analyzed by flow cytometer; the levels of IL-6, MCP-1 and IL-10 in colon homogenate were determined using ELISA, and the phosphorylation of ERK1/2, JNK and P38 was detected with Western blotting. OBJECTIVE Compared with those in NC group, the mice in rCsHscB group exhibited no adverse responses to the treatment. The mice in DSS group had severe pathologies in the colon with significantly increased ratios of CD4+ and CD4+/CD8+ T cells in peripheral blood and LPL, increased levels of IL-6 and MCP-1 but no obvious changes in IL-10 in colon homogenate, and significantly augmented phosphorylation levels of ERK1/2, JNK and P38. Compared with those in DSS group, the mice in DSS+ rCsHscB group showed ameliorated colon pathologies with decreased CD4+T/CD8+T cell ratio in the peripheral blood and LPL, significantly decreased IL-6 and MCP-1 levels and increased IL-10 in colon homogenate, and lowered phosphorylation levels of ERK1/2, JNK and P38. OBJECTIVE rCsHscB can produce therapeutic effect on DSS-induced chronic ulcerative colitis in mice possibly by inhibiting the production of pro-inflammatory factors and regulating the balance of CD4+/CD8+T cells through the MAPK pathway.
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Affiliation(s)
- H Hua
- Jiangsu Key Laboratory of Immunity and Metabolism, Xuzhou Key Laboratory of Infection and Immunity, Department of Pathogen and Immunology, Xuzhou Medical University, Xuzhou 221004, China
| | - X Dong
- Jiangsu Key Laboratory of Immunity and Metabolism, Xuzhou Key Laboratory of Infection and Immunity, Department of Pathogen and Immunology, Xuzhou Medical University, Xuzhou 221004, China
| | - Y Zhang
- Jiangsu Key Laboratory of Immunity and Metabolism, Xuzhou Key Laboratory of Infection and Immunity, Department of Pathogen and Immunology, Xuzhou Medical University, Xuzhou 221004, China
| | - F Fang
- Jiangsu Key Laboratory of Immunity and Metabolism, Xuzhou Key Laboratory of Infection and Immunity, Department of Pathogen and Immunology, Xuzhou Medical University, Xuzhou 221004, China
| | - B Zhang
- Jiangsu Key Laboratory of Immunity and Metabolism, Xuzhou Key Laboratory of Infection and Immunity, Department of Pathogen and Immunology, Xuzhou Medical University, Xuzhou 221004, China
| | - X Li
- Jiangsu Key Laboratory of Immunity and Metabolism, Xuzhou Key Laboratory of Infection and Immunity, Department of Pathogen and Immunology, Xuzhou Medical University, Xuzhou 221004, China
| | - Q Yu
- Jiangsu Key Laboratory of Immunity and Metabolism, Xuzhou Key Laboratory of Infection and Immunity, Department of Pathogen and Immunology, Xuzhou Medical University, Xuzhou 221004, China
| | - K Zheng
- Jiangsu Key Laboratory of Immunity and Metabolism, Xuzhou Key Laboratory of Infection and Immunity, Department of Pathogen and Immunology, Xuzhou Medical University, Xuzhou 221004, China
| | - C Yan
- Jiangsu Key Laboratory of Immunity and Metabolism, Xuzhou Key Laboratory of Infection and Immunity, Department of Pathogen and Immunology, Xuzhou Medical University, Xuzhou 221004, China
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Zheng WH, Yan C, Chen T, Kang DZ. New scheme for the preparation and use of artificial cerebrospinal fluid. J Physiol Pharmacol 2021; 71. [PMID: 33902002 DOI: 10.26402/jpp.2020.6.15] [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] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Accepted: 12/31/2020] [Indexed: 11/03/2022]
Abstract
This study aimed to explore a set of simplified schemes for the preparation and application of artificial cerebrospinal fluid (ACSF) to improve the experiment efficiency and neurosafety of ACSF. We prepared ACSF into parts A and B, according to the cerebrospinal fluid (CSF) data in rabbits. They were mixed in equal volumes to form ACSF, continous foaming with mixture gas (95% O2 and 5% CO2). Sampling inspection showed the chemical stability of ACSF in the three months after preparation. However, it needed to be kept continous foaming, as pH is correlated to the solubility of CO2. We further improved the application scheme by sealing the foamed ACSF in infusion bags filled with mixture gas, which could keep the pH stable for 24 hours. It was helpful in promoting the progress of clinical and experimental research relating to ACSF.
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Affiliation(s)
- W-H Zheng
- Department of Neurosurgery, The First Affiliated Hospital of Fujian Medical University, Taijiang District, Fuzhou, Fujian, China
| | - C Yan
- Department of Traditional Chinese Medicine, The Affiliated People's Hospital of Fujian University of Traditional Chinese Medicine, Taijiang District, Fuzhou, Fujian, China
| | - T Chen
- Department of Neurosurgery, The First Affiliated Hospital of Fujian Medical University, Taijiang District, Fuzhou, Fujian, China
| | - D-Z Kang
- Department of Neurosurgery, The First Affiliated Hospital of Fujian Medical University, Taijiang District, Fuzhou, Fujian, China.
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Jin X, Wang J, Li Q, Zhuang H, Yang J, Lin Z, Lin T, Lv Z, Shen L, Yan C, Zheng J, Zhu J, Gong Z, Wang C, Gao K. Erratum: SPOP targets oncogenic protein ZBTB3 for destruction to suppress endometrial cancer. Am J Cancer Res 2021; 11:1792-1794. [PMID: 33948389 PMCID: PMC8085860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 02/08/2021] [Indexed: 06/12/2023] Open
Abstract
[This corrects the article on p. 2797 in vol. 9, PMID: 31911863.].
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Affiliation(s)
- Xiaofeng Jin
- Department of Biochemistry and Molecular Biology, Zhejiang Key Laboratory of Pathophysiology, Medical School of Ningbo UniversityNingbo 315211, China
| | - Jian Wang
- Department of Biochemistry and Molecular Biology, Zhejiang Key Laboratory of Pathophysiology, Medical School of Ningbo UniversityNingbo 315211, China
| | - Qian Li
- Department of Biochemistry and Molecular Biology, Zhejiang Key Laboratory of Pathophysiology, Medical School of Ningbo UniversityNingbo 315211, China
| | - Hui Zhuang
- Department of Biochemistry and Molecular Biology, Zhejiang Key Laboratory of Pathophysiology, Medical School of Ningbo UniversityNingbo 315211, China
| | - Jianye Yang
- Department of Biochemistry and Molecular Biology, Zhejiang Key Laboratory of Pathophysiology, Medical School of Ningbo UniversityNingbo 315211, China
| | - Zihan Lin
- Department of Biochemistry and Molecular Biology, Zhejiang Key Laboratory of Pathophysiology, Medical School of Ningbo UniversityNingbo 315211, China
| | - Ting Lin
- Department of Biochemistry and Molecular Biology, Zhejiang Key Laboratory of Pathophysiology, Medical School of Ningbo UniversityNingbo 315211, China
| | - Zeheng Lv
- Clinical and Translational Research Center, Shanghai First Maternity and Infant Hospital, Tongji University School of MedicineShanghai 200090, China
| | - Liliang Shen
- Department of Urology, Yinzhou Renmin Hospital Affiliated to Medical School of Ningbo UniversityNingbo 315040, China
| | - Chunhong Yan
- Department of Obstetrics and Gynecology, Yinzhou Renmin Hospital Affiliated to Medical School of Ningbo UniversityNingbo 315040, China
| | - Jingfei Zheng
- Department of Obstetrics and Gynecology, Yinzhou Renmin Hospital Affiliated to Medical School of Ningbo UniversityNingbo 315040, China
| | - Jie Zhu
- Department of Hepato-Biliary-Pancreatic Surgery, The Affiliated Ningbo Medical Center of Lihuili Hospital of Medical School of Ningbo UniversityNingbo 315048, China
| | - Zhaohui Gong
- Department of Biochemistry and Molecular Biology, Zhejiang Key Laboratory of Pathophysiology, Medical School of Ningbo UniversityNingbo 315211, China
| | - Chenji Wang
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan UniversityShanghai 200433, China
| | - Kun Gao
- Clinical and Translational Research Center, Shanghai First Maternity and Infant Hospital, Tongji University School of MedicineShanghai 200090, China
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Zhao F, Shi M, Niu Y, Liang Y, Zhu H, Zhang Q, Yan C, Ma T. P37.35 Identification of DNA Methylation Markers to Distinguish Early-Stage Lung Adenocarcinomas from Benign Pulmonary Nodules. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Zhang T, Yan C, Ye Z, Yin X, Jiang TA. The Identification of Three Key Genes Related to Stemness in Thyroid Carcinoma through Comprehensive Analysis. Comb Chem High Throughput Screen 2021; 24:423-432. [PMID: 32767928 DOI: 10.2174/1386207323666200806164003] [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: 04/16/2020] [Revised: 05/30/2020] [Accepted: 06/17/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Tumor heterogeneity imposes great challenges on cancer treatment. Cancer stem cells (CSCs) are a leading factor contributing to tumor occurrence. However, the mechanisms underlying the growth of thyroid cancer (TCHA) are still unclear. METHODS Key genes regulating the characteristics of THCA, such as stemness were identified by combining gene expressions of samples downloaded from the Cancer Genome Atlas (TCGA) and were used to establish an mRNA expression stemness index (mRNAsi) through machine learningbased methods. The relationships of mRNAsi, THCA clinical features and molecular subtypes were analyzed. Weighted Gene Co-Expression Network Analysis (WGCNA) was performed to obtain mRNAsi-related gene modules and determine mRNAsi-related differentially co-expressed genes. Key genes related to mRNAsi were screened by protein interaction network. Functional analysis was conducted and expressions of key genes were verified in multiple external data sets. RESULTS The mRNAsi score, which was found to be lower in the TCHA tissues than that in normal tissues (p<0.05), was positively correlated with a slow progression of tumor prognosis (p=0.0085). We screened a total of 83 differentially co-expressed genes related to mRNAsi and multiple tumor pathways such as apoptosis, tight junction, cytokine-cytokine receptor interaction, and cAMP signaling pathway (p<0.05). Finally, 28 protein interaction networks incorporating 32 genes were established, and 3 key genes were identified through network mining. 3 core genes were finally determined, as their low expressions were strongly correlated with the progression of THCA. CONCLUSION The study found that NGF, FOS, and GRIA1 are closely related to the characteristics of THCA stem cells. These genes, especially FOS, are highly indicative of the prognosis of THCA patients. Thus, screening therapy could be used to inhibit the stemness of TCHA.
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Affiliation(s)
- Tonglong Zhang
- Department of Ultrasonography, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Chunhong Yan
- Department of Ultrasonography, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Zhengdu Ye
- Department of Ultrasonography, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Xingling Yin
- Micrometer Biotech, Micrometer Biotech, Hangzhou, Zhejiang, China
| | - Tian-An Jiang
- Department of Ultrasonography, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
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Liu H, Zhan Q, Miao X, Xia X, Yang G, Peng X, Yan C. Punicalagin Prevents Hepatic Steatosis through Improving Lipid Homeostasis and Inflammation in Liver and Adipose Tissue and Modulating Gut Microbiota in Western Diet-Fed Mice. Mol Nutr Food Res 2021; 65:e2001031. [PMID: 33369197 DOI: 10.1002/mnfr.202001031] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 12/09/2020] [Indexed: 12/13/2022]
Abstract
SCOPE Punicalagin (PU)-rich pomegranate peel extract has been shown before to exert protective effects against high fat-induced hepatic damage. The aim of this study is to explore whether and how PU antagonizes hepatic steatosis in Western diet-fed (WD) mice. METHODS AND RESULTS Mice are fed either chow diet, WD (containing 42% fat, 15% protein, and 43% carbohydrates), or WD supplemented with PU (50 mg kg-1 body weight/day) for 13 weeks. Weight gain, hepatic fat content, and inflammation in the liver and adipose tissues are measured. Compared to the WD group, PU-treated mice have lower fat content, decreased levels of alanine transaminase, and inflammation in liver. PU also changed the transcriptional expression of important genes in fatty acid oxidation pathway and alleviated glucose intolerance. Furthermore, PU improved adiponectin signaling and lipid metabolism in visceral adipose tissue. Moreover, PU improved gut microbiota dysbiosis induced by WD and enhanced gut barrier function. CONCLUSIONS The findings suggest that PU improves hepatic steatosis induced by WD, in part through regulating lipid homeostasis and inflammation in liver and adipose tissue and restoring microbiota shift and impaired gut barrier function. Thus, PU can be potentially developed as a potential prevention strategy in combating nonalcoholic fatty liver disease.
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Affiliation(s)
- Huanhuan Liu
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi, 712100, China
- School of Food Science and Technology, National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian, Liaoning, 116034, China
| | - Qiuyao Zhan
- BGI Education Center, University of Chinese Academy of Sciences, Shenzhen, Guangdong, 518083, China
| | - Xin Miao
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Xiaodong Xia
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi, 712100, China
- School of Food Science and Technology, National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian, Liaoning, 116034, China
| | - Gaoji Yang
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Xiaoli Peng
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Chunhong Yan
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi, 712100, China
- School of Food Science and Technology, National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian, Liaoning, 116034, China
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Yan C, Fang W, Wan L, Li L, Li H, Du B, Hao S. Transfemoral-venous transcatheter access to left ventricle through the created communication of inter-ventricular septum with the assistance of arterio-venous circuit. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.2584] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
During transcatheter aortic/mitral valve replacement (TA/MVR), current available routes are limited due to unfavorable entry-angle, vessel-anatomy or mini-thoracotomy. Through created communication of inter-ventricular septum (C-IVS), transfemoral venous transcatheter access to left ventricle becomes feasible with the assistance of arterio-venous circuit.
Purpose
The study was conducted to investigate the feasibility and safety of transfemoral-venous transcatheter access to left ventricle through the created C-IVS in a swine model.
Methods
Via femoral artery, transcatheter puncture of mid-IVS was performed with the custom-made nickel-titanium needle (0.038-inch, needle-tip bent 60 degrees automatically associated with increased hardness when temperature was above 30°C) and 6F-sheath in 20 healthy Chinese mini-swine. Then femoral arterio-venous circuit was established through created C-IVS with hydrophilic guidewire in all swine, and femoral veno-venous circuit was further created through C-IVS and atrial septum in 4 swine. After pre-dilation of C-IVS, a 20F-sheath was introduced into left ventricle transvenously over the guidewire. Furthermore, transfemoral-venous TAVR was attempted with this approach in one swine. C-IVS was evaluated postoperatively and was further confirmed pathologically 2 months later.
Results
All transcatheter puncture of IVS was performed successfully in left ventricle and the thickness of mid-IVS was 7.67±0.98 mm. During the puncture, ventricular fibrillation occurred in one swine (successfully defibrillation) and only isolated ventricular premature beats/non-sustained ventricular tachycardia were observed in other swine. In all swine, femoral arterio-venous/veno-venous circuit was established via C-IVS, and the 20F-sheath was introduced into left ventricle safely through femoral vein and C-IVS. With the aid of vessel circuit, the 20F-sheath was further advanced into aorta in 16 swine (the entry-angle was 145.3±12.2 degrees) and into left atrium in 4 swine. After the procedure, there was one swine with moderate tricuspid regurgitation and 5 swine with mild residual shunt (2.6±0.7 mm). In addition, epicardial coronary arteries were normal in all swine. Two months later, residual shunt was still detected in 3 swine and the communication was confirmed pathologically. In other swine, there was no defect of IVS and mild replacement-scar was identified along C-IVS. In the swine underwent transfemoral-venous TAVR, prosthetic valve was deployed successfully with good function.
Conclusions
With the aid of vessel circuit, transfemoral-venous transcatheter access to left ventricle is feasible and safe via C-IVS, and transfemoral-venous TAVR was achieved successfully using this novel approach with favorable entry-angle.
Figure 1
Funding Acknowledgement
Type of funding source: Other. Main funding source(s): National Natural Science Foundation of China
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Affiliation(s)
- C Yan
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Department of Structural Heart Disease, Beijing, China
| | - W Fang
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Department of Structural Heart Disease, Beijing, China
| | - L Wan
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Department of Structural Heart Disease, Beijing, China
| | - L Li
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Department of Structural Heart Disease, Beijing, China
| | - H Li
- Tong Ren Hospital- Capital Medical University, Beijing, China
| | - B Du
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Department of Structural Heart Disease, Beijing, China
| | - S Hao
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Department of Structural Heart Disease, Beijing, China
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Yan C, Li L, Pan X, Li S, Li H, Wan L, Wang L, Fang W. Indirect evaluation of device-endothelialization with cardiac-CT after transcatheter closure of atrial septal defect: how long should antiplatelet therapy last postoperatively? Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.2653] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
After transcatheter closure of atrial septal defect (ASD), it is still unclear about the in-vivo process of device-endothelialization in humans, which determines the duration of antiplatelet therapy. Based on contrast-uptake within device, cardiac-CT might have the potential to assess device-endothelialization indirectly.
Purpose
The study was conducted to investigate the status of device-endothelialization with cardiac-CT after transcatheter closure of ASD.
Methods
After more than 6 months of transcatheter ASD closure, cardiac-CT was performed in 119 patients (48M/71F; age: 46.7±14.4 years). According to contrast-uptake within device, complete or incomplete device-endothelialization was determined. In the latter, it was further divided into partial-endothelialization (with filling-defect) and no-endothelialization (without filling-defect). Multivariate logistic regression was used to determine the risk factors of incomplete device-endothelialization. In addition, device-endothelialization was analyzed grossly and histopathologically in 7 patients.
Results
During the implantation-period of 2.57±2.59 years, incomplete device-endothelialization was identified in 43.7% of patients (partial-endothelialization in 36 patients and no-endothelialization in 16 patients). Complete device-endothelialization occurred in 14.3% of patients during 0.5–1 year and 73.8% after one year. After 6-month antiplatelet therapy, migraine restarted in 15 patients with incomplete device-endothelialization and 3 patients with complete device-endothelialization. After one-year antiplatelet therapy, migraine was still detected in 4 of 15 patients with incomplete device-endothelialization. There was a significant association between high in-vivo device-thickness and incomplete device-endothelialization (P<0.001) after adjusted for confounding factors. Pathological findings from 7 patients corresponded well with cardiac-CT.
Conclusions
Cardiac-CT had the potential to evaluate the status of device-endothelialization after transcatheter closure of ASD and there was a good clinico-pathological correlation. Incomplete device-endothelialization was common postoperatively in humans and was associated with device-oversizing. Further research is required to determine the appropriate duration of antiplatelet therapy after device implantation.
Figure 1
Funding Acknowledgement
Type of funding source: Other. Main funding source(s): National Natural Science Foundation of China
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Affiliation(s)
- C Yan
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Department of Structural Heart Disease, Beijing, China
| | - L Li
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Department of Structural Heart Disease, Beijing, China
| | - X Pan
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Department of Structural Heart Disease, Beijing, China
| | - S Li
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Department of Structural Heart Disease, Beijing, China
| | - H Li
- Tong Ren Hospital- Capital Medical University, Beijing, China
| | - L Wan
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Department of Structural Heart Disease, Beijing, China
| | - L Wang
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Department of Structural Heart Disease, Beijing, China
| | - W Fang
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Department of Structural Heart Disease, Beijing, China
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Tsuboi M, Wu YL, He J, John T, Grohe C, Majem M, Goldman J, Laktionov K, Kim SW, Kato T, Vu H, Akewanlop C, Yu CJ, de Marinis F, Domine M, Shepherd F, Yan C, Atasoy A, Herbst R. 356MO Osimertinib adjuvant therapy in patients (pts) with resected EGFR-mutated (EGFRm) NSCLC (ADAURA): Central nervous system (CNS) disease recurrence. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.10.349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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Hu Z, Wang C, Glunz PW, Li J, Cheadle NL, Chen AY, Chen XQ, Myers JE, Guarino VR, Rose A, Sack JS, Sitkoff D, Taylor DS, Xu S, Yan C, Zhang H, Zhang L, Hennan J, Adam LP, Wexler RR, Quan ML. Discovery of a phenylpyrazole amide ROCK inhibitor as a tool molecule for in vivo studies. Bioorg Med Chem Lett 2020; 30:127495. [PMID: 32798651 DOI: 10.1016/j.bmcl.2020.127495] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2020] [Revised: 08/08/2020] [Accepted: 08/10/2020] [Indexed: 11/25/2022]
Abstract
Structure-activity relationship optimization on a series of phenylpyrazole amides led to the identification of a dual ROCK1 and ROCK2 inhibitor (25) which demonstrated good potency, kinome selectivity and favorable pharmacokinetic profiles. Compound 25 was selected as a tool molecule for in vivo studies including evaluating hemodynamic effects in telemeterized mice, from which moderate decreases in blood pressure were observed.
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Affiliation(s)
- Zilun Hu
- Research & Early Development, Bristol Myers Squibb, P.O. Box 5400, Princeton, NJ 08543-5400, USA.
| | - Cailan Wang
- Research & Early Development, Bristol Myers Squibb, P.O. Box 5400, Princeton, NJ 08543-5400, USA
| | - Peter W Glunz
- Research & Early Development, Bristol Myers Squibb, P.O. Box 5400, Princeton, NJ 08543-5400, USA
| | - Julia Li
- Research & Early Development, Bristol Myers Squibb, P.O. Box 5400, Princeton, NJ 08543-5400, USA
| | - Nathan L Cheadle
- Research & Early Development, Bristol Myers Squibb, P.O. Box 5400, Princeton, NJ 08543-5400, USA
| | - Alice Y Chen
- Research & Early Development, Bristol Myers Squibb, P.O. Box 5400, Princeton, NJ 08543-5400, USA
| | - Xue-Qing Chen
- Research & Early Development, Bristol Myers Squibb, P.O. Box 5400, Princeton, NJ 08543-5400, USA
| | - Joseph E Myers
- Research & Early Development, Bristol Myers Squibb, P.O. Box 5400, Princeton, NJ 08543-5400, USA
| | - Victor R Guarino
- Research & Early Development, Bristol Myers Squibb, P.O. Box 5400, Princeton, NJ 08543-5400, USA
| | - Anne Rose
- Research & Early Development, Bristol Myers Squibb, P.O. Box 5400, Princeton, NJ 08543-5400, USA
| | - John S Sack
- Research & Early Development, Bristol Myers Squibb, P.O. Box 5400, Princeton, NJ 08543-5400, USA
| | - Doree Sitkoff
- Research & Early Development, Bristol Myers Squibb, P.O. Box 5400, Princeton, NJ 08543-5400, USA
| | - David S Taylor
- Research & Early Development, Bristol Myers Squibb, P.O. Box 5400, Princeton, NJ 08543-5400, USA
| | - Songmei Xu
- Research & Early Development, Bristol Myers Squibb, P.O. Box 5400, Princeton, NJ 08543-5400, USA
| | - Chunhong Yan
- Research & Early Development, Bristol Myers Squibb, P.O. Box 5400, Princeton, NJ 08543-5400, USA
| | - Hongwei Zhang
- Research & Early Development, Bristol Myers Squibb, P.O. Box 5400, Princeton, NJ 08543-5400, USA
| | - Lisa Zhang
- Research & Early Development, Bristol Myers Squibb, P.O. Box 5400, Princeton, NJ 08543-5400, USA
| | - James Hennan
- Research & Early Development, Bristol Myers Squibb, P.O. Box 5400, Princeton, NJ 08543-5400, USA
| | - Leonard P Adam
- Research & Early Development, Bristol Myers Squibb, P.O. Box 5400, Princeton, NJ 08543-5400, USA
| | - Ruth R Wexler
- Research & Early Development, Bristol Myers Squibb, P.O. Box 5400, Princeton, NJ 08543-5400, USA
| | - Mimi L Quan
- Research & Early Development, Bristol Myers Squibb, P.O. Box 5400, Princeton, NJ 08543-5400, USA
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50
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Zhong H, Zheng Y, Lin P, Zhao Z, Xi J, Zhu W, Yu M, Zhang W, Lv H, Yan C, Hu J, Wang Z, Lu J, Yuan Y, Luo S. LIMB GIRDLE MUSCULAR DYSTROPHIES. Neuromuscul Disord 2020. [DOI: 10.1016/j.nmd.2020.08.148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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