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Wang Y, Zou Y, Jiang Q, Li W, Chai X, Zhao T, Liu S, Yuan Z, Yu C, Wang T. Ox-LDL-induced CD80 + macrophages expand pro-atherosclerotic NKT cells via CD1d in atherosclerotic mice and hyperlipidemic patients. Am J Physiol Cell Physiol 2024. [PMID: 38586879 DOI: 10.1152/ajpcell.00043.2024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2024] [Accepted: 04/02/2024] [Indexed: 04/09/2024]
Abstract
Atherosclerosis is an inflammatory disease of blood vessels involving the immune system. Natural killer T (NKT) cells, as crucial components of the innate and acquired immune systems, play critical roles in the development of atherosclerosis. However, the mechanism and clinical relevance of NKT cells in early atherosclerosis are largely unclear. Our findings demonstrated that there were higher populations of NKT cells and interferon gamma (IFN-γ)-producing NKT cells in the peripheral blood of patients with hyperlipidemia and in the aorta, blood, spleen, and bone marrow of early atherosclerotic mice compared to control groups. Moreover, we discovered that the infiltration of M1 macrophages and CD1d expression on M1 macrophages in atherosclerotic mice climbed remarkably. CD1d expression increased in M1 macrophages stimulated by oxidized low-density lipoprotein (ox-LDL) ex vivo and in vitro. Ex vivo co-culture of macrophages with NKT cells revealed that ox-LDL-induced M1 macrophages presented lipid antigen alpha-galactosylceramide (α-Galcer) to NKT cells via CD1d, enabling NKT cells to express more IFN-γ. Furthermore, a greater proportion of CD1d+monocytes and CD1d+M1 monocytes were found in peripheral blood of hyperlipidemic patients compared with that of healthy donors. Positive correlations were found between CD1d+ M1 monocytes and NKT cells or IFN-γ+ NKT cells in hyperlipidemic patients. Our findings illustrate that M1 macrophages stimulate NKT cells to secret IFN-γ via CD1d presenting α-Galcer, which may accelerate the progression of early atherosclerosis. Inhibiting lipid antigen presentation by M1 macrophages to NKT cells may be a promising immune target for the treatment of early atherosclerosis.
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Affiliation(s)
- Yin Wang
- Chongqing Medical University, China
| | - Yao Zou
- Chongqing Medical University, China
| | | | | | | | | | - Siyi Liu
- Chongqing Medical University, China
| | | | - Chao Yu
- Chongqing Medical University, chongqing, China
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Song W, Ye L, Tang Q, Lu X, Huang X, Xie M, Yu S, Yuan Z, Chen L. Rev-erbα attenuates refractory periapical periodontitis via M1 polarization: An in vitro and in vivo study. Int Endod J 2024; 57:451-463. [PMID: 38279698 DOI: 10.1111/iej.14024] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 01/04/2024] [Accepted: 01/07/2024] [Indexed: 01/28/2024]
Abstract
AIM Rev-erbα has been reported to regulate the healing of inflammatory lesions through its effect on the immune system in a variety of inflammatory disease. Moreover, the balance of macrophages polarization plays a crucial role in immune response and inflammatory progression. However, in refractory periapical periodontitis (RAP), the role of Rev-erbα in inflammatory response and bone resorption by regulating macrophage polarization remains unclarified. The aims of the present study were to investigate the expression of Rev-erbα in experimental RAP and to explore the relationship between Rev-erbα and macrophage polarization through the application of its pharmacological agonist SR9009 into the in vivo and in vitro experiments. METHODOLOGY Enterococcus faecalis-induced RAP models were established in SD rats. Histological staining and micro-computed tomography scanning were used to evaluate osteoclastogenesis and alveolar bone resorption. The expression of Rev-erbα and macrophage polarization were detected in the periapical tissues from rats by immunofluorescence, flow cytometry, and western blots. Furthermore, immunohistochemical staining and enzyme-linked immunosorbent assay were performed to explore the relationship between Rev-erbα and inflammatory cytokines related to macrophage polarization. RESULT Compared to healthy periapical tissue, the expression of Rev-erbα was significantly down-regulated in macrophages from inflammatory periapical area, especially in Enterococcus faecalis-induced periapical lesions, with obvious type-1 macrophage (M1)-like dominance and the production of pro-inflammatory cytokines. In addition, Rev-erbα activation by SR9009 could induce type-2 macrophage (M2)-like polarization in periapical tissue and THP1 cell line, followed by increased secretion of anti-inflammatory cytokines IL-10 and TGF-β. Furthermore, intracanal application of SR9009 reduced the lesion size and promoted the repair of RAP by decreasing the number of osteoclasts and enhancing the formation of mineralized tissue in periapical inflammatory lesions. CONCLUSIONS Rev-erbα played an essential role in the pathogenesis of RAP through its effect on macrophage polarization. Targeting Rev-erbα might be a promising and prospective therapy method for the prevention and management of RAP.
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Affiliation(s)
- W Song
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, China
| | - L Ye
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, China
| | - Q Tang
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, China
| | - X Lu
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, China
| | - X Huang
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, China
| | - M Xie
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, China
| | - S Yu
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, China
| | - Z Yuan
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, China
| | - L Chen
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, China
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Zou G, Yu R, Zhao D, Duan Z, Guo S, Wang T, Ma L, Yuan Z, Yu C. Celastrol ameliorates energy metabolism dysfunction of hypertensive rats by dilating vessels to improve hemodynamics. J Nat Med 2024; 78:191-207. [PMID: 38032498 DOI: 10.1007/s11418-023-01759-x] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Accepted: 10/25/2023] [Indexed: 12/01/2023]
Abstract
The impact of hypertension on tissue and organ damage is mediated through its influence on the structure and function of blood vessels. This study aimed to examine the potential of celastrol, a bioactive compound derived from Tripterygium wilfordii Hook F, in mitigating hypertension-induced energy metabolism disorder and enhancing blood perfusion and vasodilation. In order to investigate this phenomenon, we conducted in vivo experiments on renovascular hypertensive rats, employing indirect calorimetry to measure energy metabolism and laser speckle contrast imaging to evaluate hemodynamics. In vitro, we assessed the vasodilatory effects of celastrol on the basilar artery and superior mesenteric artery of rats using the Multi Wires Myograph System. Furthermore, we conducted preliminary investigations to elucidate the underlying mechanism. Moreover, administration of celastrol at doses of 1 and 2 mg/kg yielded a notable enhancement in blood flow ranging from 6 to 31% across different cerebral and mesenteric vessels in hypertensive rats. Furthermore, celastrol demonstrated a concentration-dependent (1 × 10-7 to 1 × 10-5 M) arterial dilation, independent of endothelial function. This vasodilatory effect could potentially be attributed to the inhibition of Ca2+ channels on vascular smooth muscle cells induced by celastrol. These findings imply that celastrol has the potential to ameliorate hemodynamics through vasodilation, thereby alleviating energy metabolism dysfunctions in hypertensive rats. Consequently, celastrol may hold promise as a novel therapeutic agent for the treatment of hypertension.
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Affiliation(s)
- Gang Zou
- Collage of Pharmacy, Chongqing Medical University, Chongqing, 400016, China
- Chongqing Key Laboratory for Pharmaceutical Metabolism Research, College of Pharmacy, Chongqing Medical University, 1 Yixueyuan Road, Yuzhong District, Chongqing, 400016, China
| | - Ruihong Yu
- Collage of Pharmacy, Chongqing Medical University, Chongqing, 400016, China
- Chongqing Key Laboratory for Pharmaceutical Metabolism Research, College of Pharmacy, Chongqing Medical University, 1 Yixueyuan Road, Yuzhong District, Chongqing, 400016, China
| | - Dezhang Zhao
- Collage of Pharmacy, Chongqing Medical University, Chongqing, 400016, China
- Research Center for Innovative Pharmaceutical and Experiment Analysis Technology, Chongqing, 400016, China
| | - Zhaohui Duan
- Collage of Pharmacy, Chongqing Medical University, Chongqing, 400016, China
- Chongqing Key Laboratory for Pharmaceutical Metabolism Research, College of Pharmacy, Chongqing Medical University, 1 Yixueyuan Road, Yuzhong District, Chongqing, 400016, China
| | - Shimin Guo
- Collage of Pharmacy, Chongqing Medical University, Chongqing, 400016, China
- Chongqing Key Laboratory for Pharmaceutical Metabolism Research, College of Pharmacy, Chongqing Medical University, 1 Yixueyuan Road, Yuzhong District, Chongqing, 400016, China
| | - Tingting Wang
- Collage of Pharmacy, Chongqing Medical University, Chongqing, 400016, China
- Chongqing Key Laboratory for Pharmaceutical Metabolism Research, College of Pharmacy, Chongqing Medical University, 1 Yixueyuan Road, Yuzhong District, Chongqing, 400016, China
| | - Limei Ma
- Collage of Pharmacy, Chongqing Medical University, Chongqing, 400016, China
- Chongqing Key Laboratory for Pharmaceutical Metabolism Research, College of Pharmacy, Chongqing Medical University, 1 Yixueyuan Road, Yuzhong District, Chongqing, 400016, China
| | - Zhiyi Yuan
- Collage of Pharmacy, Chongqing Medical University, Chongqing, 400016, China
- Chongqing Key Laboratory for Pharmaceutical Metabolism Research, College of Pharmacy, Chongqing Medical University, 1 Yixueyuan Road, Yuzhong District, Chongqing, 400016, China
| | - Chao Yu
- Collage of Pharmacy, Chongqing Medical University, Chongqing, 400016, China.
- Chongqing Key Laboratory for Pharmaceutical Metabolism Research, College of Pharmacy, Chongqing Medical University, 1 Yixueyuan Road, Yuzhong District, Chongqing, 400016, China.
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Xia H, Yuan Z. [Discovery and distribution of and response to arbovirus in China over the past seven decades]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2023; 35:427-436. [PMID: 38148530 DOI: 10.16250/j.32.1374.2023152] [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] [Grants] [Subscribe] [Scholar Register] [Indexed: 12/28/2023]
Abstract
Arbovirus is a group of virus transmitted by blood-sucking arthropod bites, which infects both arthropods and vertebrates. More than 600 arboviruses have been characterized worldwide until now, including 65 highly pathogenic viruses, which pose a high threat to public health. The risk of arbovirus transmission is increasing due to climate change, international trade and urbanization. The review summarizes the discovery and distribution of emerging and reemerging arboviruses and novel arboviruses with potential pathogenic risks, and proposes responses to the arbovirus transmission risk, so as to provide insights into the research and management of arboviruses and arthropod-borne infectious diseases in China.
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Affiliation(s)
- H Xia
- Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, Hubei 430071, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Z Yuan
- Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, Hubei 430071, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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Mi L, Yuan Z, Que M, Yang Y, Fang S, Wang X. Observation of the short-term curative effect of using SuperPATH approach to treat elderly femoral neck fractures with schizophrenia. Acta Orthop Belg 2023; 89:639-643. [PMID: 38205754 DOI: 10.52628/89.4.9750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2024]
Abstract
As China enters an aging society, the incidence of femoral neck fractures is increasing year by year. For some patients, total hip arthroplasty (THA) is the treatment of choice for displaced femoral neck fractures. Schizophrenia is a common combination of elderly patients with femoral neck fractures, and there are few reports on the treatment. This study describes the short-term efficacy of the supercapsular percutaneously assisted (SuperPATH) approach in the treatment of patients suffered with displaced femoral neck fractures combined with schizophrenia. A retrospective analysis of 20 elderly patients with displaced femoral neck fractures combined with schizophrenia who underwent THA using the SuperPATH approach. Record demographic data, postoperative reexamination of X-ray film to observe the position and the loosening condition of the prosthesis, the length of hospitalization, complications in the hospital and after discharge. The Harris score of hip joint function was used to evaluate postoperative hip joint function. The average age of the 20 patients was 73.1 years. All patients were followed up by outpatient clinic or telephone. The follow-up time was 3-12 months, with an average of 9.2 months. There was no incision infection, no tissue structure damage such as important nerves and blood vessels, and no complications such as early dislocation, loosening of the joint prosthesis, and deep vein thrombosis of lower extremities. The efficacy of the last follow-up was evaluated according to the Harris score of hip joint function: an average of 91 points (78-98 points); 13 cases were excellent, 5 cases were good, and 2 cases were fair. The SuperPATH approach has the advantages of less surgical damage, shorter recovery time, good surgical safety, preserving the normal tension of the muscles around the hip joint, and reducing the incidence rate of early postoperative dislocation of the joint prosthesis. The THA of the SuperPATH approach can treat patients with displaced femoral neck fractures combined with schizophrenia safely and effectively.
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Yan X, Yuan Z, Yang Z, Song J. How I do it? Preoperative Microsoft HoloLens 2 planning-assisted surgical clipping of a fetal posterior cerebral artery aneurysm. Acta Neurochir (Wien) 2023; 165:3371-3374. [PMID: 37723266 DOI: 10.1007/s00701-023-05810-4] [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: 07/03/2023] [Accepted: 09/09/2023] [Indexed: 09/20/2023]
Abstract
BACKGROUND The treatment of intracranial aneurysms has predominantly shifted towards endovascular strategies, but complex cases still necessitate microsurgery. Preoperative stimulation can be beneficial for inexperienced young neurosurgeons in preparing for safe microsurgery. METHOD A 72-year-old female with a left irregular fetal posterior cerebral artery (PCA) aneurysm underwent clipping repair. Microsoft HoloLens 2, utilizing mixed reality technology, was employed for preoperative stimulation and anatomical study. During the operation, we successfully identified the planned relationship between the aneurysm and the fetal PCA. The patient was cured without any complications. CONCLUSION We hope that this report will highlight the significance of Microsoft HoloLens 2 in microsurgical planning and education.
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Affiliation(s)
- Xiaorong Yan
- Department of Neurosurgery, The First Affiliated Hospital, Fujian Medical University, Fuzhou, 350004, Fujian, China
- Department of Neurosurgery, National Regional Medical Center, The First Affiliated Hospital Binhai Campus, Fujian Medical University, Fuzhou, 350209, Fujian, China
| | - Zhiyi Yuan
- School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Zixiao Yang
- Department of Neurosurgery, National Center for Neurological Disorders, Huashan Hospital, Fudan University, Shanghai, 200040, China
- Department of Neurosurgery, National Regional Medical Center, Huashan Hospital Fujian Campus, Fudan University, Fuzhou, 350209, Fujian, China
- Neurosurgical Institute of Fudan University, Shanghai, 200040, China
- Shanghai Clinical Medical Center of Neurosurgery, Shanghai, 200040, China
- Shanghai Key Laboratory of Brain Function Restoration and Neural Regeneration, Shanghai, 200040, China
| | - Jianping Song
- Department of Neurosurgery, National Center for Neurological Disorders, Huashan Hospital, Fudan University, Shanghai, 200040, China.
- Department of Neurosurgery, National Regional Medical Center, Huashan Hospital Fujian Campus, Fudan University, Fuzhou, 350209, Fujian, China.
- Neurosurgical Institute of Fudan University, Shanghai, 200040, China.
- Shanghai Clinical Medical Center of Neurosurgery, Shanghai, 200040, China.
- Shanghai Key Laboratory of Brain Function Restoration and Neural Regeneration, Shanghai, 200040, China.
- Research Unit of New Technologies of Micro-Endoscopy Combination in Skull Base Surgery (2018RU008), Chinese Academy of Medical Sciences (CAMS), Shanghai, 200040, China.
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Chen Y, Liang C, Li J, Ma L, Wang B, Yuan Z, Yang S, Nong X. Effect of artesunate on cardiovascular complications in periodontitis in a type I diabetes rat model and related mechanisms. J Endocrinol Invest 2023; 46:2031-2053. [PMID: 36892740 DOI: 10.1007/s40618-023-02052-0] [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] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Accepted: 02/24/2023] [Indexed: 03/10/2023]
Abstract
PURPOSE Both cardiovascular disease and periodontitis are complications of diabetes that have a great impact on human life and health. Our previous research found that artesunate can effectively improve cardiovascular disease in diabetes and has an inhibitory effect on periodontal disease. Therefore, the present study aimed to explore the potential therapeutic possibility of artesunate in the protection against cardiovascular complications in periodontitis with type I diabetes rats and to elucidate the possible underlying mechanisms. METHODS Sprague‒Dawley rats were randomly divided into the healthy, diabetic, periodontitis, diabetic with periodontitis, and artesunate treatment groups (10, 30, and 60 mg/kg, i.g.). After artesunate treatment, oral swabs were collected and used to determine changes in the oral flora. Micro-CT was performed to observe changes in alveolar bone. Blood samples were processed to measure various parameters, while cardiovascular tissues were evaluated by haematoxylin-eosin, Masson, Sirius red, and TUNEL staining to observe fibrosis and apoptosis. The protein and mRNA expression levels in the alveolar bone and cardiovascular tissues were detected using immunohistochemistry and RT‒PCR. RESULTS Diabetic rats with periodontitis and cardiovascular complications maintained heart and body weight but exhibited reduced blood glucose levels, and they were able to regulate blood lipid indicators at normal levels after artesunate treatment. The staining assays suggested that treatment with 60 mg/kg artesunate has a significant therapeutic effect on myocardial apoptotic fibrosis. The high expression of NF-κB, TLR4, VEGF, ICAM-1, p38 MAPK, TGF-β, Smad2, and MMP9 in the alveolar bone and cardiovascular tissue in the type I diabetes and type I diabetes with periodontitis rat models was reduced after treatment with artesunate in a concentration-dependent manner. Micro-CT showed that treatment with 60 mg/kg artesunate effectively alleviated alveolar bone resorption and density reduction. The sequencing results suggested that each model group of rats had vascular and oral flora dysbiosis, but artesunate treatment could correct the dysbacteriosis. CONCLUSIONS Periodontitis-related pathogenic bacteria cause dysbiosis of the oral and intravascular flora in type I diabetes and aggravate cardiovascular complications. The mechanism by which periodontitis aggravates cardiovascular complications involves the NF-κB pathway, which induces myocardial apoptosis, fibrosis, and vascular inflammation.
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Affiliation(s)
- Y Chen
- College of Stomatology, Hospital of Stomatology, Guangxi Medical University, No. 10 Shuangyong Road, Nanning, 530021, Guangxi, China
- Guangxi Key Laboratory of Oral and Maxillofacial Rehabilitation and Reconstruction, Guangxi Medical University, Nanning, 530021, Guangxi, China
| | - C Liang
- College of Stomatology, Hospital of Stomatology, Guangxi Medical University, No. 10 Shuangyong Road, Nanning, 530021, Guangxi, China
- Guangxi Key Laboratory of Oral and Maxillofacial Rehabilitation and Reconstruction, Guangxi Medical University, Nanning, 530021, Guangxi, China
| | - J Li
- Life Science Institute, Guangxi Medical University, Nanning, 530021, Guangxi, China
- Medical Science Research Center, Guangxi Medical University, Nanning, 530021, Guangxi, China
| | - L Ma
- College of Stomatology, Hospital of Stomatology, Guangxi Medical University, No. 10 Shuangyong Road, Nanning, 530021, Guangxi, China
- Guangxi Key Laboratory of Oral and Maxillofacial Rehabilitation and Reconstruction, Guangxi Medical University, Nanning, 530021, Guangxi, China
| | - B Wang
- College of Stomatology, Hospital of Stomatology, Guangxi Medical University, No. 10 Shuangyong Road, Nanning, 530021, Guangxi, China
- Guangxi Key Laboratory of Oral and Maxillofacial Rehabilitation and Reconstruction, Guangxi Medical University, Nanning, 530021, Guangxi, China
| | - Z Yuan
- College of Stomatology, Hospital of Stomatology, Guangxi Medical University, No. 10 Shuangyong Road, Nanning, 530021, Guangxi, China
- Guangxi Key Laboratory of Oral and Maxillofacial Rehabilitation and Reconstruction, Guangxi Medical University, Nanning, 530021, Guangxi, China
| | - S Yang
- School of Information and Management, Nanning, 530021, Guangxi, China
| | - X Nong
- College of Stomatology, Hospital of Stomatology, Guangxi Medical University, No. 10 Shuangyong Road, Nanning, 530021, Guangxi, China.
- Guangxi Key Laboratory of Oral and Maxillofacial Rehabilitation and Reconstruction, Guangxi Medical University, Nanning, 530021, Guangxi, China.
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Yuan Z. Handcrafted Radiomics, Deep Learning Radiomics in the Prediction of Radiation Pneumonitis for NSCLC Patients Treated with Immunotherapy Followed with Thoracic Radiotherapy. Int J Radiat Oncol Biol Phys 2023; 117:e79. [PMID: 37786181 DOI: 10.1016/j.ijrobp.2023.06.822] [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) Our previous study has shown that NSCLC patients previously received immune checkpoint inhibitors (ICIs) underwent thoracic intensity modulated radiotherapy have a higher risk of acute radiation pneumonitis (RP). This study aimed to establish machine learning models using handcrafted radiomics (HCR), deep learning-based radiomics (DLR) and clinical characteristics to improve the prediction of symptomatic radiation pneumonitis (RP) (grade ≥ 2) status for NSCLC patients treated with immunotherapy followed with thoracic radiotherapy. MATERIALS/METHODS This study retrospectively collected data of 61 NSCLC patients meeting the requirements of study enrollment. Of these 61 patients, 35 developed symptomatic graded ≥ 2 RP. We defined 3 regions of interest (ROIs) in planning CT images including gross tumor volume (GTV), planning tumor volume (PTV), PTV-GTV. We calculated the mean dose, V5, V10, V20, and V30 within TL-GTV, and the volume of GTV, PTV and total lung. A total of 516 handcrafted radiomics features and 512 deep features were extracted from each 3 ROIs. Person Correlation Analysis and Least Absolute Shrinkage and Selection Operator (LASSO) were used to reduce the dimension of features. The HCR models, DLR models and the fusion models across different ROIs with machine learning classifiers were built and compared. RESULTS In multi-classifier modeling, models with PTV under logistic regression (LR) classifiers showed better prediction than other ROIs under different machine learning algorithms. Based on PTV with LR, HCR+ DLR model had better performance, with an area under the curve (AUC) of 0.95 (95% confidence interval (CI): 0.893-1) in the training cohort and 0.87 (95% CI: 0.698-1) in the test cohort, which was higher than that of HCR model, with an AUC of 0.86 (95% CI: 0.755-0.9) in the training cohort and 0.82 (95% CI: 0.624-1) in the test cohort, the results of fusion model with HCR, DLR and 7 clinical characteristics including T, N, clinical stage, age, smoking, radiotherapy alone/combined and V30, demonstrated the best distinguishing performance, with an AUC of 0.99 (95% CI: 0.970-1) in the training cohort and 0.91 (95% CI: 0.784-1) in the test cohort. CONCLUSION The combination of HCR, DLR and clinical characteristic underwent machine learning algorithms can improve the prediction of symptomatic RP in NSCLC patients treated with ICIs followed with thoracic radiotherapy.
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Affiliation(s)
- Z Yuan
- Department of Radiology, Hubei Cancer Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, PR, China, Wuhan, China, China
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Xiang P, Chen Q, Chen L, Lei J, Yuan Z, Hu H, Lu Y, Wang X, Wang T, Yu R, Zhang W, Zhang J, Yu C, Ma L. Metabolite Neu5Ac triggers SLC3A2 degradation promoting vascular endothelial ferroptosis and aggravates atherosclerosis progression in ApoE -/-mice. Theranostics 2023; 13:4993-5016. [PMID: 37771765 PMCID: PMC10526676 DOI: 10.7150/thno.87968] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Accepted: 08/29/2023] [Indexed: 09/30/2023] Open
Abstract
Background: Atherosclerosis (AS) is still the major cause of cardiovascular disease (CVD) as well as stroke. Endothelial metabolic disorder has been found to be activated and then promote endothelial cells (ECs) injury, which is regarded to initiate AS progression. N-acetylneuraminic acid (Neu5Ac), a metabolite produced by hexosamine-sialic acid pathway branching from glucose metabolism, was presented as a notable biomarker of CVD and is positively correlated with ECs function. However, few studies explain whether Neu5Ac regulate AS progression by affecting EC function as well as its involved mechanisms are still unknown. Methods: Here, we mimicked an animal model in ApoE-/- mice which displaying similar plasma Neu5Ac levels with AS model to investigate its effect on AS progression. Results: We found that Neu5Ac exacerbated plaques area and increased lipids in plasma in absence of HFD feeding, and ECs inflammatory injury was supposed as the triggering factor upon Neu5Ac treatment with increasing expression of IL-1β, ICAM-1, and promoting ability of monocyte adhesion to ECs. Mechanistic studies showed that Neu5Ac facilitated SLC3A2 binding to ubiquitin and then triggered P62 mediated degradation, further leading to accumulation of lipid peroxidation in ECs. Fer-1 could inhibit ECs injury and reverse AS progression induced by Neu5Ac in ApoE-/- mice. Interestingly, mitochondrial dysfunction was also partly participated in ECs injury after Neu5Ac treatment and been reversed by Fer-1. Conclusions: Together, our study unveils a new mechanism by which evaluated metabolite Neu5Ac could promote SLC3A2 associated endothelial ferroptosis to activate ECs injury and AS plaque progression, thus providing a new insight into the role of Neu5Ac-ferroptosis pathway in AS. Also, our research revealed that pharmacological inhibition of ferroptosis may provide a novel therapeutic strategy for premature AS.
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Affiliation(s)
- Peng Xiang
- College of Pharmacy, Chongqing Medical University, 400010, Chongqing, China
- Chongqing Key Laboratory for Pharmaceutical Metabolism Research, 400010, Chongqing, China
| | - Qingqiu Chen
- College of Pharmacy, Chongqing Medical University, 400010, Chongqing, China
- Chongqing Key Laboratory for Pharmaceutical Metabolism Research, 400010, Chongqing, China
| | - Le Chen
- College of Pharmacy, Chongqing Medical University, 400010, Chongqing, China
- Chongqing Key Laboratory for Pharmaceutical Metabolism Research, 400010, Chongqing, China
| | - Jin Lei
- Xi'an No.1 Hospital, The First Affiliated Hospital of Northwest University, Xi'an, 710002, Shaanxi, China
| | - Zhiyi Yuan
- College of Pharmacy, Chongqing Medical University, 400010, Chongqing, China
- Chongqing Key Laboratory for Pharmaceutical Metabolism Research, 400010, Chongqing, China
| | - Hui Hu
- College of Pharmacy, Chongqing Medical University, 400010, Chongqing, China
| | - Yining Lu
- College of Pharmacy, Chongqing Medical University, 400010, Chongqing, China
- Chongqing Key Laboratory for Pharmaceutical Metabolism Research, 400010, Chongqing, China
| | - Xianmin Wang
- College of Pharmacy, Chongqing Medical University, 400010, Chongqing, China
- Chongqing Key Laboratory for Pharmaceutical Metabolism Research, 400010, Chongqing, China
| | - Tingting Wang
- College of Pharmacy, Chongqing Medical University, 400010, Chongqing, China
- Chongqing Key Laboratory for Pharmaceutical Metabolism Research, 400010, Chongqing, China
| | - Ruihong Yu
- College of Pharmacy, Chongqing Medical University, 400010, Chongqing, China
- Chongqing Key Laboratory for Pharmaceutical Metabolism Research, 400010, Chongqing, China
| | - Wanping Zhang
- College of Pharmacy, Chongqing Medical University, 400010, Chongqing, China
- Chongqing Key Laboratory for Pharmaceutical Metabolism Research, 400010, Chongqing, China
| | - Jun Zhang
- College of Pharmacy, Chongqing Medical University, 400010, Chongqing, China
- Chongqing Key Laboratory for Pharmaceutical Metabolism Research, 400010, Chongqing, China
| | - Chao Yu
- College of Pharmacy, Chongqing Medical University, 400010, Chongqing, China
- Chongqing Key Laboratory for Pharmaceutical Metabolism Research, 400010, Chongqing, China
| | - Limei Ma
- College of Pharmacy, Chongqing Medical University, 400010, Chongqing, China
- Chongqing Key Laboratory for Pharmaceutical Metabolism Research, 400010, Chongqing, China
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Zhang X, Chen Y, Li Z, Shang J, Yuan Z, Deng W, Luo Y, Han N, Yin P, Yin J. [Analysis of therapeutic mechanism of Liushen Wan against colitis-associated colorectal cancer based on network pharmacology and validation in mice]. Nan Fang Yi Ke Da Xue Xue Bao 2023; 43:1051-1062. [PMID: 37488787 PMCID: PMC10366510 DOI: 10.12122/j.issn.1673-4254.2023.07.01] [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: 07/26/2023]
Abstract
OBJECTIVE To explore the therapeutic mechanism of Liushen Wan (LSW) against colitis-associated colorectal cancer (CAC) by network pharmacology. METHODS TCMSP, BATMAN-TCM, CNKI, PubMed, Genecards, OMIM, and TTD databases were used to obtain the related targets of LSW and CAC. The common targets of LSW and CAC were obtained using Venny online website. The PPI network was constructed using Cytoscape 3.8.2 to screen the core targets of LSW in the treatment of CAC. GO and KEGG enrichment analysis were conducted using DAVID database. The therapeutic effect of LSW on CAC was evaluated in a C57BL/6J mouse model of AOM/DSS-induced CAC by observing the changes in body weight, disease activity index, colon length, and size and number of the tumor. HE staining and RT-qPCR were used to analyze the effect of LSW on inflammatory mediators. Immunohistochemistry and TUNEL staining were used to evaluate the effect of LSW on the proliferation and apoptosis of AOM/DSS-treated colon tumor cells. Immunohistochemistry and Western blotting were used to detect the effects of LSW on the expression of TLR4 proteins in CAC mice. RESULTS Network pharmacology analysis identified 69 common targets of LSW and CAC, and 33 hub targets were screened in the PPI network. KEGG pathway enrichment analysis suggested that the effect of LSW on CAC was mediated by the Toll-like receptor signaling pathway. In the mouse model of AOM/DSS-induced CAC, LSW significantly inhibited colitis-associated tumorigenesis, reduced tumor number and tumor load (P < 0.05), obviously improved histopathological changes in the colon, downregulated the mRNA levels of proinflammatory cytokines, and inhibited the proliferation (P < 0.01) and promoted apoptosis of colon tumor cells (P < 0.001). LSW also significantly decreased TLR4 protein expression in the colon tissue (P < 0.05). CONCLUSION LSW can inhibit CAC in mice possibly by regulating the expression of TLR4 to reduce intestinal inflammation, inhibit colon tumor cell proliferation and promote their apoptosis.
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Affiliation(s)
- X Zhang
- School of Traditional Chinese Medicine, Shengyang Pharmaceutical University, Benxi 117004, China
- Interventional Cancer Institute of Chinese Integrative Medicine, Shanghai Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200062, China
| | - Y Chen
- School of Traditional Chinese Medicine, Shengyang Pharmaceutical University, Benxi 117004, China
- Interventional Cancer Institute of Chinese Integrative Medicine, Shanghai Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200062, China
| | - Z Li
- Department of General Surgery, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200062, China
- Interventional Cancer Institute of Chinese Integrative Medicine, Shanghai Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200062, China
| | - J Shang
- Department of General Surgery, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200062, China
- Interventional Cancer Institute of Chinese Integrative Medicine, Shanghai Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200062, China
| | - Z Yuan
- Interventional Cancer Institute of Chinese Integrative Medicine, Shanghai Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200062, China
| | - W Deng
- Interventional Cancer Institute of Chinese Integrative Medicine, Shanghai Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200062, China
| | - Y Luo
- Clinical Laboratory, Shanghai Changning Maternity and Infant Health Hospital, Shanghai 200000, China
| | - N Han
- School of Traditional Chinese Medicine, Shengyang Pharmaceutical University, Benxi 117004, China
| | - P Yin
- Department of General Surgery, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200062, China
- Interventional Cancer Institute of Chinese Integrative Medicine, Shanghai Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200062, China
| | - J Yin
- School of Traditional Chinese Medicine, Shengyang Pharmaceutical University, Benxi 117004, China
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11
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Zhang L, Li J, Chen J, Lei J, Yuan Z, Zhang J, Liu Z, Yu C, Ma L. Oscillatory shear stress-mediated aberrant O-GlcNAc SIRT3 accelerates glycocalyx inflammatory injury via LKB1/p47 phox/Hyal2 signaling. Cell Signal 2023:110790. [PMID: 37392860 DOI: 10.1016/j.cellsig.2023.110790] [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: 03/16/2023] [Revised: 06/07/2023] [Accepted: 06/28/2023] [Indexed: 07/03/2023]
Abstract
Glycocalyx coating on endothelial surface layer helps to sense shear forces and maintain endothelial function. However, the underlying mechanism of endothelial glycocalyx degradation upon disordered shear stress stimulation is not fully understood. SIRT3, a major NAD+-dependent protein deacetylases, is required for protein stability during vascular homeostasis and partly involved in atherosclerotic process. While few studies showed that SIRT3 is responsible for endothelial glycocalyx homeostasis under shear stress, the underlying mechanisms remain largely unknown. Here, we demonstrated that oscillatory shear stress (OSS) induces glycocalyx injury by activating LKB1/p47phox/Hyal2 axis both in vivo and in vitro. And O-GlcNAc modification served to prolong SIRT3 deacetylase activity and stabilized p47/Hyal2 complex. OSS could decrease SIRT3 O-GlcNAcylation to activate LKB1, further accelerated endothelial glycocalyx injury in inflammatory microenvironment. SIRT3Ser329 mutation or inhibition of SIRT3 O-GlcNAcylation strongly promoted glycocalyx degradation. On the contrary, overexpression of SIRT3 reverse glycocalyx damage upon OSS treatment. Together, our findings indicated that targeting O-GlcNAcylation of SIRT3 could prevent and/or treat diseases whereby glycocalyx injured.
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Affiliation(s)
- Lei Zhang
- Chongqing Key Research Laboratory of Drug Metabolism, College of Pharmacy, Chongqing Medical University, Chongqing, China
| | - Jiajia Li
- Hechuan District People's Hospital, Chongqing, China
| | - Jun Chen
- Chongqing Key Research Laboratory of Drug Metabolism, College of Pharmacy, Chongqing Medical University, Chongqing, China
| | - Jin Lei
- Chongqing Key Research Laboratory of Drug Metabolism, College of Pharmacy, Chongqing Medical University, Chongqing, China
| | - Zhiyi Yuan
- Chongqing Key Research Laboratory of Drug Metabolism, College of Pharmacy, Chongqing Medical University, Chongqing, China
| | - Jun Zhang
- Institute of Life Sciences, Chongqing Medical University, Chongqing, China
| | - Zhaohong Liu
- Chongqing Key Research Laboratory of Drug Metabolism, College of Pharmacy, Chongqing Medical University, Chongqing, China
| | - Chao Yu
- Chongqing Key Research Laboratory of Drug Metabolism, College of Pharmacy, Chongqing Medical University, Chongqing, China.
| | - Limei Ma
- Chongqing Key Research Laboratory of Drug Metabolism, College of Pharmacy, Chongqing Medical University, Chongqing, China.
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12
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Yuan Z, Lu X, Lei F, Sun H, Jiang J, Xing D, Du L. Novel Effect of p-Coumaric Acid on Hepatic Lipolysis: Inhibition of Hepatic Lipid-Droplets. Molecules 2023; 28:4641. [PMID: 37375195 DOI: 10.3390/molecules28124641] [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: 05/07/2023] [Revised: 06/03/2023] [Accepted: 06/05/2023] [Indexed: 06/29/2023] Open
Abstract
p-coumaric acid (p-CA), a common plant phenolic acid with multiple bioactivities, has a lipid-lowering effect. As a dietary polyphenol, its low toxicity, with the advantages of prophylactic and long-term administration, makes it a potential drug for prophylaxis and the treatment of nonalcoholic fatty liver disease (NAFLD). However, the mechanism by which it regulates lipid metabolism is still unclear. In this study, we studied the effect of p-CA on the down-regulation of accumulated lipids in vivo and in vitro. p-CA increased a number of lipase expressions, including hormone-sensitive lipase (HSL), monoacylglycerol lipase (MGL) and hepatic triglyceride lipase (HTGL), as well as the expression of genes related to fatty acid oxidation, including long-chain fatty acyl-CoA synthetase 1 (ACSL1), carnitine palmitoyltransferase-1 (CPT1), by activating peroxisome proliferator-activated receptor α, and γ (PPARα and γ). Furthermore, p-CA promoted adenosine 5'-monophosphate (AMP)-activated protein kinase (AMPK) phosphorylation and enhanced the expression of the mammalian suppressor of Sec4 (MSS4), a critical protein that can inhibit lipid droplet growth. Thus, p-CA can decrease lipid accumulation and inhibit lipid droplet fusion, which are correlated with the enhancement of liver lipases and genes related to fatty acid oxidation as an activator of PPARs. Therefore, p-CA is capable of regulating lipid metabolism and is a potential therapeutic drug or health care product for hyperlipidemia and fatty liver.
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Affiliation(s)
- Zhiyi Yuan
- College of Pharmacy, Chongqing Medical University, Chongqing 400016, China
| | - Xi Lu
- School of Life Sciences and School of Medicine, Tsinghua University, Beijing 100084, China
| | - Fan Lei
- School of Life Sciences and School of Medicine, Tsinghua University, Beijing 100084, China
| | - Hong Sun
- Institute of Medicinal Plant and Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100094, China
| | - Jingfei Jiang
- School of Life Sciences and School of Medicine, Tsinghua University, Beijing 100084, China
| | - Dongming Xing
- School of Life Sciences and School of Medicine, Tsinghua University, Beijing 100084, China
| | - Lijun Du
- School of Life Sciences and School of Medicine, Tsinghua University, Beijing 100084, China
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Hu X, Li Y, Chen Q, Wang T, Ma L, Zhang W, Yu R, Zhang J, Wan J, Yu C, Yuan Z. Sialic acids promote macrophage M1 polarization and atherosclerosis by upregulating ROS and autophagy blockage. Int Immunopharmacol 2023; 120:110410. [PMID: 37270929 DOI: 10.1016/j.intimp.2023.110410] [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: 01/10/2023] [Revised: 05/10/2023] [Accepted: 05/28/2023] [Indexed: 06/06/2023]
Abstract
Accumulating evidence suggests that sialic acids is closely related to atherosclerosis. However, the effects and underlying mechanisms of sialic acids in atherosclerosis have been not defined. Macrophages are one of the most important cells during plaque progression. In this study, we investigated the role of sialic acids in the M1 macrophage polarization and pathogenesis of atherosclerosis. Here we found that sialic acids can promote the polarization of RAW264.7 cells to the M1 phenotype, thereby promoting the expression of proinflammatory cytokines in vitro. The proinflammatory effect of sialic acids may result from the inhibition of LKB1-AMPK-Sirt3 signaling pathway to upregulate intracellular ROS and impairing autophagy-lysosome system to block autophagic flux. In the APOE-/- mice, sialic acids in plasma increased during the development of atherosclerosis. Moreover, exogenous supplement of sialic acids can promote plaque progression in aortic arch and aortic sinus being accompanied by the differentiation of macrophages into M1 type in peripheral tissues. These studies demonstrated that sialic acids can promote macrophage polarization toward the M1 phenotype to accentuate atherosclerosis via inducing mitochondrial ROS and blocking autophagy, thus providing clue to a novel therapeutic strategy for atherosclerosis.
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Affiliation(s)
- Xuemei Hu
- College of Pharmacy, Chongqing Medical University, Chongqing 400016, China; Chongqing Key Laboratory for Pharmaceutical Metabolism Research, College of Pharmacy, Chongqing Medical University, Chongqing 400016, China
| | - Yueyue Li
- College of Pharmacy, Chongqing Medical University, Chongqing 400016, China; Chongqing Key Laboratory for Pharmaceutical Metabolism Research, College of Pharmacy, Chongqing Medical University, Chongqing 400016, China
| | - Qingyang Chen
- College of Pharmacy, Chongqing Medical University, Chongqing 400016, China; Chongqing Key Laboratory for Pharmaceutical Metabolism Research, College of Pharmacy, Chongqing Medical University, Chongqing 400016, China
| | - Tingting Wang
- College of Pharmacy, Chongqing Medical University, Chongqing 400016, China; Chongqing Key Laboratory for Pharmaceutical Metabolism Research, College of Pharmacy, Chongqing Medical University, Chongqing 400016, China
| | - Limei Ma
- College of Pharmacy, Chongqing Medical University, Chongqing 400016, China; Chongqing Key Laboratory for Pharmaceutical Metabolism Research, College of Pharmacy, Chongqing Medical University, Chongqing 400016, China
| | - Wanping Zhang
- College of Pharmacy, Chongqing Medical University, Chongqing 400016, China; Chongqing Key Laboratory for Pharmaceutical Metabolism Research, College of Pharmacy, Chongqing Medical University, Chongqing 400016, China
| | - Ruihong Yu
- College of Pharmacy, Chongqing Medical University, Chongqing 400016, China; Chongqing Key Laboratory for Pharmaceutical Metabolism Research, College of Pharmacy, Chongqing Medical University, Chongqing 400016, China
| | - Jun Zhang
- Chongqing Key Laboratory for Pharmaceutical Metabolism Research, College of Pharmacy, Chongqing Medical University, Chongqing 400016, China; Institute of Life Sciences, Chongqing Medical University, Chongqing 400016, China
| | - Jingyuan Wan
- College of Pharmacy, Chongqing Medical University, Chongqing 400016, China
| | - Chao Yu
- College of Pharmacy, Chongqing Medical University, Chongqing 400016, China; Chongqing Key Laboratory for Pharmaceutical Metabolism Research, College of Pharmacy, Chongqing Medical University, Chongqing 400016, China.
| | - Zhiyi Yuan
- College of Pharmacy, Chongqing Medical University, Chongqing 400016, China; Chongqing Key Laboratory for Pharmaceutical Metabolism Research, College of Pharmacy, Chongqing Medical University, Chongqing 400016, China.
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Yuan Z, Cui H, Wei B. [Current status and future prospects of robotic surgical system in radical gastrectomy for gastric cancer]. Zhonghua Wei Chang Wai Ke Za Zhi 2023; 26:33-37. [PMID: 36649997 DOI: 10.3760/cma.j.cn441530-20221123-00486] [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: 01/19/2023]
Abstract
Robotic gastrectomy (RG) has always been a hot topic in the field of minimally invasive surgery for gastric cancer. More and more studies have confirmed that short- and long-term outcomes of RG are similar to those of laparoscopic gastrectomy. Robotic surgical systems have more advantages in specific regional lymph node dissection. More delicate operation can reduce intraoperative blood loss and the incidence of postoperative complications. Robotic surgical systems are also more ergonomically designed. However, there are also some problems such as high surgical cost, lack of tactile feedback and prolonged total operation time. In the future, robotic surgical system may be further developed in the direction of miniaturization, intelligence and modularity. At the same time, the robotic surgical system deeply integrated with artificial intelligence technology may realize the automation of some operation steps to some extent.
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Affiliation(s)
- Z Yuan
- Department of General Surgery, The First Medical Center, Chinese PLA General Hospital, Beijing 100853, China
| | - H Cui
- Department of General Surgery, The First Medical Center, Chinese PLA General Hospital, Beijing 100853, China
| | - B Wei
- Department of General Surgery, The First Medical Center, Chinese PLA General Hospital, Beijing 100853, China
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15
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Yang X, Ma L, Zhang J, Chen L, Zou Z, Shen D, He H, Zhang L, Chen J, Yuan Z, Qin X, Yu C. Hypofucosylation of Unc5b regulated by Fut8 enhances macrophage emigration and prevents atherosclerosis. Cell Biosci 2023; 13:13. [PMID: 36670464 PMCID: PMC9854080 DOI: 10.1186/s13578-023-00959-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 01/08/2023] [Indexed: 01/21/2023] Open
Abstract
BACKGROUND Atherosclerosis (AS) is the leading underlying cause of the majority of clinical cardiovascular events. Retention of foamy macrophages in plaques is the main factor initiating and promoting the atherosclerotic process. Our previous work showed that ox-LDL induced macrophage retention in plaques and that the guidance receptor Uncoordinated-5 homolog B (Unc5b) was involved in this process. However, little is known about the role of Unc5b in regulating macrophage accumulation within plaques. RESULTS In the present study, we found that Unc5b controls macrophage migration and thus promotes plaque progression in ApoE-/- mice. The immunofluorescence colocalization assay results first suggested that fucosyltransferase 8 (Fut8) might participate in the exacerbation of atherosclerosis. Animals with Unc5b overexpression showed elevated levels of Fut8 and numbers of macrophages and an increased lesion size and intimal thickness. However, these effects were reversed in ApoE-/- mice with Unc5b knockdown. Furthermore, Raw264.7 macrophages with siRNA-mediated silencing of Unc5b or overexpression of Unc5b were used to confirm the regulatory mechanisms of Unc5b and Fut8 in vitro. In response to ox-LDL exposure, Unc5b and Fut8 were both upregulated, and macrophages showed reduced pseudopod formation and migratory capacities. However, these capacities were restored by blocking Unc5b or Fut8. Furthermore, the IP assay indicated that Fut8 regulated the level of α-1,6 fucosylation of Unc5b, which mainly occurs in the endoplasmic reticulum (ER), and genetic deletion of the main fucosylation sites or Fut8 resulted in hypofucosylation of Unc5b. Moreover, the macrophage migration mediated by Unc5b depended on inactivation of the p-CDC42/p-PAK pathway. Conversely, macrophages with Unc5b overexpression displayed activation of the p-CDC42/p-PAK pathway and decreased migration both in vivo and in vitro. CONCLUSION These results demonstrated that hypofucosylation of Unc5b regulated by Fut8 is positively associated with the delay of the atherosclerotic process by promoting the migration of foamy macrophages. These findings identify a promising therapeutic target for atherosclerosis.
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Affiliation(s)
- Xi Yang
- grid.203458.80000 0000 8653 0555Institute of Life Sciences, Chongqing Medical University, Chongqing, 400016 China ,grid.410612.00000 0004 0604 6392College of Basic Medicine, Inner Mongolia Medical University, Hohhot, 010110 China
| | - Limei Ma
- grid.203458.80000 0000 8653 0555College of Pharmacy, Chongqing Medical University, Chongqing, 400016 China
| | - Jun Zhang
- grid.203458.80000 0000 8653 0555Institute of Life Sciences, Chongqing Medical University, Chongqing, 400016 China
| | - Linmu Chen
- grid.203458.80000 0000 8653 0555Institute of Life Sciences, Chongqing Medical University, Chongqing, 400016 China
| | - Zhen Zou
- grid.203458.80000 0000 8653 0555Institute of Life Sciences, Chongqing Medical University, Chongqing, 400016 China
| | - Di Shen
- grid.203458.80000 0000 8653 0555Institute of Life Sciences, Chongqing Medical University, Chongqing, 400016 China
| | - Hui He
- grid.203458.80000 0000 8653 0555Institute of Life Sciences, Chongqing Medical University, Chongqing, 400016 China
| | - Lei Zhang
- grid.203458.80000 0000 8653 0555College of Pharmacy, Chongqing Medical University, Chongqing, 400016 China
| | - Jun Chen
- grid.203458.80000 0000 8653 0555College of Pharmacy, Chongqing Medical University, Chongqing, 400016 China
| | - Zhiyi Yuan
- grid.203458.80000 0000 8653 0555College of Pharmacy, Chongqing Medical University, Chongqing, 400016 China
| | - Xia Qin
- grid.203458.80000 0000 8653 0555College of Pharmacy, Chongqing Medical University, Chongqing, 400016 China
| | - Chao Yu
- grid.203458.80000 0000 8653 0555College of Pharmacy, Chongqing Medical University, Chongqing, 400016 China
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Zhang Y, Niu G, Kong S, Wei F, Wang H, Dong Y, Yu L, Guan Y, Wang H, Yu X, Yin Z, Yuan Z. Predictive Model for the Radiotherapy Induced Rib Fracture (RIRF) after Stereotactic Body Radiotherapy. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.1653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Niu G, Zhang Y, Gao M, Zhao J, Wang H, Chen J, Guo X, Yu L, Guan Y, Dong Y, Yu X, Yin Z, Yuan Z, Kong S. Dosimetric Analysis of Radiation-Induced Brachial Plexopathy after Stereotactic Body Radiotherapy: The Contouring of Brachial Plexus Matters. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.1645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Yuan Z, Wei Q, Wang J. Long-term changes in cerebral and ocular hemodynamics after carotid endarterectomy in symptomatic patients with unilateral carotid artery stenosis. Eur Rev Med Pharmacol Sci 2022; 26:7541-7549. [PMID: 36314325 DOI: 10.26355/eurrev_202210_30025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
OBJECTIVE The aim of the current study was to describe the alternation pattern of cerebral and ocular blood flow velocities (BFVs) in symptomatic patients with unilateral carotid stenosis after carotid endarterectomy. PATIENTS AND METHODS 20 symptomatic patients underwent carotid endarterectomy for ≥ 50% unilateral carotid stenosis. Cerebral and ocular hemodynamics were evaluated by Transcranial Doppler (TCD) and Color Doppler imaging (CDI), respectively, first preoperatively, then during the following several days after carotid endarterectomy before discharge, and finally two to sixteen months later. RESULTS Statistically significant improvements in the BFVs were recorded in the ipsilateral anterior cerebral artery (ACA), middle cerebral artery (MCV) and short posterior ciliary artery (SPCA) during the following several days after carotid endarterectomy. Preoperative retrograde flows of the ipsilateral ophthalmic artery (OA) in two patients returned to anterograde direction immediately following carotid endarterectomy. At the follow-up of two to sixteen months, the BFVs of the ipsilateral ACA, MCA and SPCA tended to decline and were no longer statistically significant from the preoperative values. CONCLUSIONS Carotid endarterectomy significantly increased the flow velocities of ipsilateral cerebral anterior circulation and OA branching artery in patients with unilateral carotid stenosis early after surgery. At the long-term follow-up, the flow velocities in the ipsilateral hemisphere had the tendency to reduce and approach the preoperative level.
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Affiliation(s)
- Z Yuan
- Department of Vascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
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Cheng J, Miao BF, Liu Z, Yang M, He K, Zeng YL, Niu H, Yang X, Wang ZQ, Hong XH, Fu SJ, Sun L, Liu Y, Wu YZ, Yuan Z, Ding HF. Coherent Picture on the Pure Spin Transport between Ag/Bi and Ferromagnets. Phys Rev Lett 2022; 129:097203. [PMID: 36083669 DOI: 10.1103/physrevlett.129.097203] [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] [Received: 01/25/2022] [Accepted: 07/26/2022] [Indexed: 06/15/2023]
Abstract
In a joint effort of both experiments and first-principles calculations, we resolve a hotly debated controversy and provide a coherent picture on the pure spin transport between Ag/Bi and ferromagnets. We demonstrate a strong inverse Rashba-Edelstein effect (IREE) at the interface in between Ag/Bi with a ferromagnetic metal (FM) but not with a ferromagnetic insulator. This is in sharp contrast to the previously claimed IREE at Ag/Bi interface or inverse spin Hall effect dominated spin transport. A more than one order of magnitude modulation of IREE signal is realized for different Ag/Bi-FM interfaces, casting strong tunability and a new direction for searching efficient spintronics materials.
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Affiliation(s)
- J Cheng
- National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, People's Republic of China
| | - B F Miao
- National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, People's Republic of China
- Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, People's Republic of China
| | - Z Liu
- Center for Advanced Quantum Studies and Department of Physics, Beijing Normal University, Beijing 100875, People's Republic of China
| | - M Yang
- National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, People's Republic of China
| | - K He
- National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, People's Republic of China
| | - Y L Zeng
- National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, People's Republic of China
| | - H Niu
- National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, People's Republic of China
| | - X Yang
- National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, People's Republic of China
| | - Z Q Wang
- National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, People's Republic of China
| | - X H Hong
- National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, People's Republic of China
| | - S J Fu
- National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, People's Republic of China
| | - L Sun
- National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, People's Republic of China
- Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, People's Republic of China
| | - Y Liu
- Center for Advanced Quantum Studies and Department of Physics, Beijing Normal University, Beijing 100875, People's Republic of China
| | - Y Z Wu
- Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, People's Republic of China
- Department of Physics, Fudan University, 220 Handan Road, Shanghai 200433, People's Republic of China
| | - Z Yuan
- Center for Advanced Quantum Studies and Department of Physics, Beijing Normal University, Beijing 100875, People's Republic of China
| | - H F Ding
- National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, People's Republic of China
- Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, People's Republic of China
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20
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Gong Z, Yuan Z, Niu Y, Zhang X, Geng J, Wei S. CARBONATED BEVERAGES AFFECT LEVELS OF ANDROGEN RECEPTOR AND TESTOSTERONE SECRETION IN MICE. Acta Endocrinol (Buchar) 2022; 18:301-305. [PMID: 36699165 PMCID: PMC9867816 DOI: 10.4183/aeb.2022.301] [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] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Objectives This work aimed to study the influences of carbonated beverages (CBs) on the testis growth and the expression levels of androgen receptor (AR) of mice. Methods Two experimental groups of 30 mice each PEP-1 and PEP-2 drank 50% and 100% Pepsi-Cola, respectively for 15 days. Other 2 experimental groups of 30 mice each COC-1 and COC-2 drank 50% and 100% Coca-Cola, respectively for 15 days. The control group (CG) of 30 mice drank water. Bilateral testes were harvested aseptically on days 0, 5, 7, 10, 13 and 15. Real-time PCR and Western blot were implemented to detect levels of androgen receptor (AR) mRNA and protein in testis tissues. Results Testes masses of PEP-2, COC-1 and COC-2 were greater than those of PEP-1 and CG (P < 0.05). On day 15, testis longitudinal diameter (TLD) of CBs-treated mice was increased as compared to CG. TLD, testes transverse diameters (TTD) and AR proteins levels of PEP-2 and COC-2 were increased in comparison with CG (P<0.05). Serum testosterone concentrations of PEP-2 were higher than that of COC-1 and CG (P < 0.05). Levels of AR mRNAs of four CBs-treated mice were increased by 60.18%, 67.26%, 65.93% and 78.76%. Conclusions A high concentration of Coca-Cola and Pepsi-Cola could raise TLD and TDD, enhance testosterone secretion, and increase serum EGF concentrations.
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Affiliation(s)
- Z. Gong
- Northwest Minzu University, Affiliated Hospital, Lanzhou, China
| | - Z. Yuan
- Northwest Minzu University, Life Science and Engineering College, Lanzhou, China
| | - Y. Niu
- Northwest Minzu University, Life Science and Engineering College, Lanzhou, China
| | - X. Zhang
- Northwest Minzu University, Life Science and Engineering College, Lanzhou, China
| | - J. Geng
- Northwest Minzu University, Life Science and Engineering College, Lanzhou, China
| | - S. Wei
- Northwest Minzu University, Life Science and Engineering College, Lanzhou, China
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21
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Dai Y, Zhao YW, Ma L, Tang M, Qiu XP, Liu Y, Yuan Z, Zhou SM. Fourfold Anisotropic Magnetoresistance of L1_{0} FePt Due to Relaxation Time Anisotropy. Phys Rev Lett 2022; 128:247202. [PMID: 35776447 DOI: 10.1103/physrevlett.128.247202] [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] [Received: 01/05/2022] [Revised: 04/06/2022] [Accepted: 05/25/2022] [Indexed: 06/15/2023]
Abstract
Experimental measurements show that the angular dependence of the anisotropic magnetoresistance (AMR) in L1_{0} ordered FePt epitaxial films on the current orientation and magnetization direction is a superposition of the corresponding dependences of twofold and fourfold symmetries. The twofold AMR exhibits a strong dependence on the current orientation, whereas the fourfold term only depends on the magnetization direction in the crystal and is independent of the current orientation. First-principles calculations reveal that the fourfold AMR arises from the relaxation time anisotropy due to the variation of the density of states near the Fermi energy under rotation of the magnetization. This relaxation time anisotropy is a universal property in ferromagnetic metals and determines other anisotropic physical properties that are observable in experiment.
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Affiliation(s)
- Y Dai
- Shanghai Key Laboratory of Special Artificial Microstructure Materials and Technology and Pohl Institute of Solid State Physics and School of Physics Science and Engineering, Tongji University, Shanghai 200092, China
| | - Y W Zhao
- Center for Advanced Quantum Studies and Department of Physics, Beijing Normal University, Beijing 100875, China
| | - L Ma
- Shanghai Key Laboratory of Special Artificial Microstructure Materials and Technology and Pohl Institute of Solid State Physics and School of Physics Science and Engineering, Tongji University, Shanghai 200092, China
| | - M Tang
- Shanghai Key Laboratory of Special Artificial Microstructure Materials and Technology and Pohl Institute of Solid State Physics and School of Physics Science and Engineering, Tongji University, Shanghai 200092, China
| | - X P Qiu
- Shanghai Key Laboratory of Special Artificial Microstructure Materials and Technology and Pohl Institute of Solid State Physics and School of Physics Science and Engineering, Tongji University, Shanghai 200092, China
| | - Y Liu
- Center for Advanced Quantum Studies and Department of Physics, Beijing Normal University, Beijing 100875, China
| | - Z Yuan
- Center for Advanced Quantum Studies and Department of Physics, Beijing Normal University, Beijing 100875, China
| | - S M Zhou
- Shanghai Key Laboratory of Special Artificial Microstructure Materials and Technology and Pohl Institute of Solid State Physics and School of Physics Science and Engineering, Tongji University, Shanghai 200092, China
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22
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Zhao T, Jiang Q, Li W, Wang Y, Zou Y, Chai X, Yuan Z, Ma L, Yu R, Deng T, Yu C, Wang T. Antigen-Presenting Cell-Like Neutrophils Foster T Cell Response in Hyperlipidemic Patients and Atherosclerotic Mice. Front Immunol 2022; 13:851713. [PMID: 35251050 PMCID: PMC8891125 DOI: 10.3389/fimmu.2022.851713] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Accepted: 01/31/2022] [Indexed: 12/30/2022] Open
Abstract
Neutrophils constitute abundant cellular components in atherosclerotic plaques. Most of the current studies are focused on the roles of granular proteins released by neutrophils in atherosclerosis. Here, we revealed a unique subset of neutrophils which exhibit the characteristics of antigen-presenting cell (APC) (which were called APC-like neutrophils afterwards) in atherosclerosis. The roles of APC-like neutrophils and relevant mechanisms were investigated in hyperlipidemic patients and atherosclerotic mice. Higher percentages of neutrophils and APC-like neutrophils were found in peripheral blood of hyperlipidemic patients than that of healthy donors. Meanwhile, we also identified higher infiltration of neutrophils and APC-like neutrophils in atherosclerotic mice. Ox-LDL induced Phorbol-12-myristate-13-acetate (PMA)-activated neutrophils to acquire the APC-like phenotype. Importantly, upon over-expression of APC-like markers, neutrophils acquired APC functions to promote the proliferation and interferon-γ production of CD3+ T cells via HLA-DR/CD80/CD86. In accordance with what found in vitro, positive correlation between neutrophils and CD3+ T cells was observed in hyperlipidemic patients. In conclusion, our work identifies a proinflammatory neutrophil subset in both hyperlipidemic patients and atherosclerotic mice. This unique phenotype of neutrophils could activate the adaptive immune response to promote atherosclerosis progression. Thus, this neutrophil subset may be a new target for immunotherapy of atherosclerosis.
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Affiliation(s)
- Tingrui Zhao
- College of Pharmacy, Chongqing Medical University, Chongqing, China.,Chongqing Key Laboratory for Pharmaceutical Metabolism Research, Chongqing, China.,Chongqing Pharmacodynamic Evaluation Engineering Technology Research Center, Chongqing, China
| | - Qingsong Jiang
- College of Pharmacy, Chongqing Medical University, Chongqing, China.,Chongqing Key Laboratory for Pharmaceutical Metabolism Research, Chongqing, China.,Chongqing Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing, China
| | - Wenming Li
- Department of Clinical Laboratory, University-Town Hospital of Chongqing Medical University, Chongqing, China
| | - Yin Wang
- College of Pharmacy, Chongqing Medical University, Chongqing, China.,Chongqing Key Laboratory for Pharmaceutical Metabolism Research, Chongqing, China.,Chongqing Pharmacodynamic Evaluation Engineering Technology Research Center, Chongqing, China
| | - Yao Zou
- College of Pharmacy, Chongqing Medical University, Chongqing, China.,Chongqing Key Laboratory for Pharmaceutical Metabolism Research, Chongqing, China.,Chongqing Pharmacodynamic Evaluation Engineering Technology Research Center, Chongqing, China
| | - Xinyu Chai
- College of Pharmacy, Chongqing Medical University, Chongqing, China.,Chongqing Key Laboratory for Pharmaceutical Metabolism Research, Chongqing, China.,Chongqing Pharmacodynamic Evaluation Engineering Technology Research Center, Chongqing, China
| | - Zhiyi Yuan
- College of Pharmacy, Chongqing Medical University, Chongqing, China.,Chongqing Key Laboratory for Pharmaceutical Metabolism Research, Chongqing, China.,Chongqing Pharmacodynamic Evaluation Engineering Technology Research Center, Chongqing, China
| | - Limei Ma
- College of Pharmacy, Chongqing Medical University, Chongqing, China.,Chongqing Key Laboratory for Pharmaceutical Metabolism Research, Chongqing, China.,Chongqing Pharmacodynamic Evaluation Engineering Technology Research Center, Chongqing, China
| | - Ruihong Yu
- College of Pharmacy, Chongqing Medical University, Chongqing, China.,Chongqing Key Laboratory for Pharmaceutical Metabolism Research, Chongqing, China.,Chongqing Pharmacodynamic Evaluation Engineering Technology Research Center, Chongqing, China
| | - Tao Deng
- Research Center of Pharmaceutical Preparations and Nanomedicine, College of Pharmacy, Chongqing Medical University, Chongqing, China
| | - Chao Yu
- College of Pharmacy, Chongqing Medical University, Chongqing, China.,Chongqing Key Laboratory for Pharmaceutical Metabolism Research, Chongqing, China.,Chongqing Pharmacodynamic Evaluation Engineering Technology Research Center, Chongqing, China
| | - Tingting Wang
- College of Pharmacy, Chongqing Medical University, Chongqing, China.,Chongqing Key Laboratory for Pharmaceutical Metabolism Research, Chongqing, China.,Chongqing Pharmacodynamic Evaluation Engineering Technology Research Center, Chongqing, China
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23
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Wang C, Yan Z, Gong C, Xie H, Qiao Z, Yuan Z, Chen YC. Multicolor Light Mixing in Optofluidic Concave Interfaces for Anticounterfeiting with Deep Learning Authentication. ACS Appl Mater Interfaces 2022; 14:10927-10935. [PMID: 35172572 DOI: 10.1021/acsami.1c22466] [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] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Anticounterfeiting technology has received tremendous interest for its significance in daily necessities, medical industry, and high-end products. Confidential tags based on photoluminescence are one of the most widely used approaches for their vivid visualization and high throughput. However, the complexity of confidential tags is generally limited to the accessibility of inks and their spatial location; generating an infinite combination of emission colors is therefore a challenging task. Here, we demonstrate a concept to create complex color light mixing in a confined space formed by microscale optofluidic concave interfaces. Infinite color combination and capacity were generated through chaotic behavior of light mixing and interaction in an ininkjet-printed skydome structure. Through the chaotic mixing of emission intensity, wavelength, and light propagation trajectories, the visionary patterns serve as a highly unclonable label. Finally, a deep learning-based machine vision system was built for the authentication process. The developed anticounterfeiting system may provide inspiration for utilizing space color mixing in optical security and communication applications.
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Affiliation(s)
- Chenlu Wang
- School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Zhiyuan Yan
- School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Chaoyang Gong
- School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Hui Xie
- School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Zhen Qiao
- School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Zhiyi Yuan
- School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Yu-Cheng Chen
- School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
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24
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Lei J, Xiang P, Zeng S, Chen L, Zhang L, Yuan Z, Zhang J, Wang T, Yu R, Zhang W, Ibrahim II, Ma L, Yu C. Tetramethylpyrazine Alleviates Endothelial Glycocalyx Degradation and Promotes Glycocalyx Restoration via TLR4/NF-κB/HPSE1 Signaling Pathway During Inflammation. Front Pharmacol 2022; 12:791841. [PMID: 35185540 PMCID: PMC8850260 DOI: 10.3389/fphar.2021.791841] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2021] [Accepted: 11/18/2021] [Indexed: 11/13/2022] Open
Abstract
Tetramethylpyrazine (TMP), a Chinese traditional herbal extraction widely used in treating cardiovascular diseases, could attenuate vascular endothelial injuries, but the underlying mechanism remains incomprehensive. Vascular glycocalyx coating on the endothelium would be damaged and caused endothelial dysfunction in the inflammatory microenvironment, which was the initial factor of morbidity of many vascular diseases, such as atherosclerosis (AS). Here, we thoroughly investigated the molecular mechanism of TMP on vascular endothelial glycocalyx in the LPS-induced inflammatory model both in vitro and in vivo. Results showed that pretreatment with TMP significantly inhibited glycocalyx degradation and monocytes adhesion to the endothelial process. Moreover, TMP pretreatment inhibited the expression of HPSE1 (a major degrading enzyme of endothelial glycocalyx), Toll-like receptor 4 (TLR4), and the translocation of nuclear factor kappa B p65 (NF-κB p65). We were utilized withTLR4 siRNA, NF-κB inhibitor, and HPSE1 overexpression analysis confirmed TMP's protection on endothelial glycocalyx injury, which further contributed to the monocyte-endothelial adhesion process. It was indicated that TMP might suppress glycocalyx degradation through TLR4/NF-κB/HPSE1 signaling pathway. Taken together, our results enriched the occurrence molecular mechanism of glycocalyx shedding and molecular regulation mechanism of TMP in protecting integrity of the glycocalyx structure during inflammation. As TMP is currently used in clinical applications, it may be considered a novel strategy against atherosclerosis through its ability to protect endothelial glycocalyx.
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Affiliation(s)
- Jin Lei
- College of Pharmacy, Chongqing Medical University, Chongqing, China.,Chongqing Key Laboratory for Pharmaceutical Metabolism Research, Chongqing, China
| | - Peng Xiang
- College of Pharmacy, Chongqing Medical University, Chongqing, China.,Chongqing Key Laboratory for Pharmaceutical Metabolism Research, Chongqing, China
| | - Shengmei Zeng
- College of Pharmacy, Chongqing Medical University, Chongqing, China.,Chongqing Key Laboratory for Pharmaceutical Metabolism Research, Chongqing, China
| | - Le Chen
- College of Pharmacy, Chongqing Medical University, Chongqing, China.,Chongqing Key Laboratory for Pharmaceutical Metabolism Research, Chongqing, China
| | - Lei Zhang
- College of Pharmacy, Chongqing Medical University, Chongqing, China.,Chongqing Key Laboratory for Pharmaceutical Metabolism Research, Chongqing, China
| | - Zhiyi Yuan
- College of Pharmacy, Chongqing Medical University, Chongqing, China.,Chongqing Key Laboratory for Pharmaceutical Metabolism Research, Chongqing, China
| | - Jun Zhang
- Chongqing Key Laboratory for Pharmaceutical Metabolism Research, Chongqing, China.,Institute of Life Sciences, College of Pharmacy, Chongqing Medical University, Chongqing, China
| | - Tingting Wang
- College of Pharmacy, Chongqing Medical University, Chongqing, China.,Chongqing Key Laboratory for Pharmaceutical Metabolism Research, Chongqing, China
| | - Ruihong Yu
- College of Pharmacy, Chongqing Medical University, Chongqing, China.,Chongqing Key Laboratory for Pharmaceutical Metabolism Research, Chongqing, China
| | - Wanping Zhang
- College of Pharmacy, Chongqing Medical University, Chongqing, China.,Chongqing Key Laboratory for Pharmaceutical Metabolism Research, Chongqing, China
| | - Issa Issoufou Ibrahim
- College of Pharmacy, Chongqing Medical University, Chongqing, China.,Chongqing Key Laboratory for Pharmaceutical Metabolism Research, Chongqing, China
| | - Limei Ma
- College of Pharmacy, Chongqing Medical University, Chongqing, China.,Chongqing Key Laboratory for Pharmaceutical Metabolism Research, Chongqing, China
| | - Chao Yu
- College of Pharmacy, Chongqing Medical University, Chongqing, China.,Chongqing Key Laboratory for Pharmaceutical Metabolism Research, Chongqing, China
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25
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Wei T, Peng SY, Li XY, Yuan Z, Lin Q. Upper Limb Lymphedema Impacts the Risk of Peripherally Inserted Central Catheter-Related Thrombosis in Patients with Breast Cancer. Lymphology 2022; 55:178-187. [PMID: 37553006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/10/2023]
Abstract
There is little information on the risk for catheter-related thrombosis in patients with upper limb lymphedema following breast cancer treatment. We investigated the association between upper limb lymphedema and the risk of peripherally inserted central catheterrelated thrombosis (PICC-RT) occurring in the contralateral limb of patients with breast cancer. A retrospective review analyzed all patients with breast cancer who underwent PICC insertion at a cancer hospital in Hunan Province from 2015 to 2019. Upper limb lymphedema was indexed from hospital information system (HIS) before the occurrence of PICC-RT developed in the contralateral limb. Cox regression analysis was used to evaluate the association of factors with outcome. A total of 1,262 patient records were found and 50 cases of PICC-RT were identified. Forty of these occurred in patients without lymphedema (n=1,236) and 10 in patients with upper limb lymphedema (n=26). After adjustment for various co-variables, Cox regression analysis showed that upper limb lymphedema was significantly associated with increased risk of PICC-RT (hazard ratio=12.128, 95% confidence interval=5.551-26.501; P<0.001). In breast cancer patients, upper limb lymphedema may be an important predictor for PICC-RT in the contralateral limb and information should be provided to patients.
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Affiliation(s)
- T Wei
- Anesthesiology Department, Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University/Hunan Cancer Hospital, Changsha, Hunan Province, China
| | - S-Y Peng
- The Early Clinical Trial Center, Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University/Hunan Cancer Hospital, Changsha, Hunan Province, China
| | - X-Y Li
- Department of Nursing, Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University/Hunan Cancer Hospital, Changsha, Hunan Province, China
| | - Z Yuan
- Vascular Access Clinic, Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University/Hunan Cancer Hospital, Changsha, Hunan Province, China
| | - Q Lin
- Vascular Access Clinic, Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University/Hunan Cancer Hospital, Changsha, Hunan Province, China
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26
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He J, Li Z, Zhang X, Wang H, Dong W, Du E, Chang S, Ou X, Guo S, Tian Z, Gu A, Teng F, Hu B, Yang X, Chen S, Yao M, Yuan Z, Zhou L, Zhao X, Li Y, Zhang D. Towards carbon neutrality: A study on China's long-term low-carbon transition pathways and strategies. Environ Sci Ecotechnol 2022; 9:100134. [PMID: 36157858 PMCID: PMC9488042 DOI: 10.1016/j.ese.2021.100134] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 11/19/2021] [Accepted: 11/20/2021] [Indexed: 05/14/2023]
Abstract
As the world's biggest carbon dioxide (CO2) emitter and the largest developing country, China faces daunting challenges to peak its emissions before 2030 and achieve carbon neutrality within 40 years. This study fully considered the carbon-neutrality goal and the temperature rise constraints required by the Paris Agreement, by developing six long-term development scenarios, and conducting a quantitative evaluation on the carbon emissions pathways, energy transformation, technology, policy and investment demand for each scenario. This study combined both bottom-up and top-down methodologies, including simulations and analyses of energy consumption of end-use and power sectors (bottom-up), as well as scenario analysis, investment demand and technology evaluation at the macro level (top-down). This study demonstrates that achieving carbon neutrality before 2060 translates to significant efforts and overwhelming challenges for China. To comply with the target, a high rate of an average annual reduction of CO2 emissions by 9.3% from 2030 to 2050 is a necessity, which requires a huge investment demand. For example, in the 1.5 °C scenario, an investment in energy infrastructure alone equivalent to 2.6% of that year's GDP will be necessary. The technological pathway towards carbon neutrality will rely highly on both conventional emission reduction technologies and breakthrough technologies. China needs to balance a long-term development strategy of lower greenhouse gas emissions that meets both the Paris Agreement and the long-term goals for domestic economic and social development, with a phased implementation for both its five-year and long-term plans.
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Affiliation(s)
- Jiankun He
- Institute of Climate Change and Sustainable Development, Tsinghua University, Beijing, 100084, China
| | - Zheng Li
- Institute of Climate Change and Sustainable Development, Tsinghua University, Beijing, 100084, China
- Department of Energy and Power Engineering, Tsinghua University, Beijing, 100084, China
- Corresponding author. Institute of Climate Change and Sustainable Development, Tsinghua University, Beijing, 100084, China.
| | - Xiliang Zhang
- Institute of Energy, Environment and Economy, Tsinghua University, Beijing, 100084, China
| | - Hailin Wang
- Institute of Energy, Environment and Economy, Tsinghua University, Beijing, 100084, China
| | - Wenjuan Dong
- Institute of Climate Change and Sustainable Development, Tsinghua University, Beijing, 100084, China
- Corresponding author.
| | - Ershun Du
- Laboratory of Low Carbon Energy, Tsinghua University, Beijing, 100084, China
| | - Shiyan Chang
- Institute of Energy, Environment and Economy, Tsinghua University, Beijing, 100084, China
| | - Xunmin Ou
- Institute of Energy, Environment and Economy, Tsinghua University, Beijing, 100084, China
| | - Siyue Guo
- Institute of Energy, Environment and Economy, Tsinghua University, Beijing, 100084, China
| | - Zhiyu Tian
- Energy Research Institute, Chinese Academy of Macroeconomic Research, Beijing, 100038, China
| | - Alun Gu
- Institute of Energy, Environment and Economy, Tsinghua University, Beijing, 100084, China
| | - Fei Teng
- Institute of Energy, Environment and Economy, Tsinghua University, Beijing, 100084, China
| | - Bin Hu
- Institute of Climate Change and Sustainable Development, Tsinghua University, Beijing, 100084, China
| | - Xiu Yang
- Institute of Climate Change and Sustainable Development, Tsinghua University, Beijing, 100084, China
| | - Siyuan Chen
- Department of Energy and Power Engineering, Tsinghua University, Beijing, 100084, China
| | - Mingtao Yao
- Energy Research Institute, Chinese Academy of Macroeconomic Research, Beijing, 100038, China
| | - Zhiyi Yuan
- Institute of Energy, Environment and Economy, Tsinghua University, Beijing, 100084, China
| | - Li Zhou
- Institute of Energy, Environment and Economy, Tsinghua University, Beijing, 100084, China
| | - Xiaofan Zhao
- Division of Public Policy, Hong Kong University of Science and Technology, Hong Kong, China
| | - Ying Li
- Institute of Climate Change and Sustainable Development, Tsinghua University, Beijing, 100084, China
| | - Danwei Zhang
- Institute of Energy, Environment and Economy, Tsinghua University, Beijing, 100084, China
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27
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Wang Z, Liu Y, Gong C, Yuan Z, Shen L, Chang P, Liu K, Xu T, Jiang J, Chen YC, Liu T. Liquid crystal-amplified optofluidic biosensor for ultra-highly sensitive and stable protein assay. Photonix 2021; 2:18. [PMID: 34806024 PMCID: PMC8397869 DOI: 10.1186/s43074-021-00041-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Accepted: 08/03/2021] [Indexed: 05/05/2023]
Abstract
Protein assays show great importance in medical research and disease diagnoses. Liquid crystals (LCs), as a branch of sensitive materials, offer promising applicability in the field of biosensing. Herein, we developed an ultrasensitive biosensor for the detection of low-concentration protein molecules, employing LC-amplified optofluidic resonators. In this design, the orientation of LCs was disturbed by immobilized protein molecules through the reduction of the vertical anchoring force from the alignment layer. A biosensing platform based on the whispering-gallery mode (WGM) from the LC-amplified optofluidic resonator was developed and explored, in which the spectral wavelength shift was monitored as the sensing parameter. The microbubble structure provided a stable and reliable WGM resonator with a high Q factor for LCs. It is demonstrated that the wall thickness of the microbubble played a key role in enhancing the sensitivity of the LC-amplified WGM microcavity. It is also found that protein molecules coated on the internal surface of microbubble led to their interactions with laser beams and the orientation transition of LCs. Both effects amplified the target information and triggered a sensitive wavelength shift in WGM spectra. A detection limit of 1 fM for bovine serum albumin (BSA) was achieved to demonstrate the high-sensitivity of our sensing platform in protein assays. Compared to the detection using a conventional polarized optical microscope (POM), the sensitivity was improved by seven orders of magnitude. Furthermore, multiple types of proteins and specific biosensing were also investigated to verify the potential of LC-amplified optofluidic resonators in the biomolecular detection. Our studies indicate that LC-amplified optofluidic resonators offer a new solution for the ultrasensitive real-time biosensing and the characterization of biomolecular interactions. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1186/s43074-021-00041-1.
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Affiliation(s)
- Ziyihui Wang
- School of Precision Instrument and Opto-Electronics Engineering, Tianjin University, Tianjin, 300072 China
| | - Yize Liu
- School of Precision Instrument and Opto-Electronics Engineering, Tianjin University, Tianjin, 300072 China
| | - Chaoyang Gong
- School of Electrical and Electronics Engineering, Nanyang Technological University, Singapore, 639798 Singapore
| | - Zhiyi Yuan
- School of Electrical and Electronics Engineering, Nanyang Technological University, Singapore, 639798 Singapore
| | - Liang Shen
- School of Precision Instrument and Opto-Electronics Engineering, Tianjin University, Tianjin, 300072 China
| | - Pengxiang Chang
- School of Precision Instrument and Opto-Electronics Engineering, Tianjin University, Tianjin, 300072 China
| | - Kun Liu
- School of Precision Instrument and Opto-Electronics Engineering, Tianjin University, Tianjin, 300072 China
| | - Tianhua Xu
- School of Precision Instrument and Opto-Electronics Engineering, Tianjin University, Tianjin, 300072 China
- School of Engineering, University of Warwick, Coventry, CV4 7AL UK
| | - Junfeng Jiang
- School of Precision Instrument and Opto-Electronics Engineering, Tianjin University, Tianjin, 300072 China
| | - Yu-Cheng Chen
- School of Electrical and Electronics Engineering, Nanyang Technological University, Singapore, 639798 Singapore
| | - Tiegen Liu
- School of Precision Instrument and Opto-Electronics Engineering, Tianjin University, Tianjin, 300072 China
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28
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Li M, Yuan Z, Tang Z. The accuracy of magnetic resonance imaging to measure the depth of invasion in oral tongue cancer: a systematic review and meta-analysis. Int J Oral Maxillofac Surg 2021; 51:431-440. [PMID: 34420832 DOI: 10.1016/j.ijom.2021.07.010] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [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: 07/01/2020] [Revised: 05/11/2021] [Accepted: 07/16/2021] [Indexed: 11/19/2022]
Abstract
The accuracy of magnetic resonance imaging (MRI)-derived depth of invasion (DOI) compared to histopathological DOI is still controversial. A meta-analysis was performed to address this controversy and further investigate the best imaging sequence to measure DOI of tongue squamous cell carcinomas (SCC). A comprehensive literature search of five electronic databases was conducted. Stata/SE was used to establish a continuous variable model to assess the consistency between MRI-derived DOI and histopathological DOI. IBM SPSS Statistics 22.0 was used to evaluate the correlation between MRI-derived DOI and histopathological DOI. The meta-analysis showed that the weighted mean difference (WMD) of DOI measured by MRI had an acceptable overestimation compared with that measured by histopathology (WMD 1.64 mm; P < 0.001). In the subgroup analyses, there was no difference between T1-weighted imaging (T1WI) and histopathological values (WMD 0.77 mm; P = 0.273), while T2-weighted imaging (T2WI) had a major overestimation (WMD 2.09 mm; P < 0.001). The overall inter-class correlation coefficient (ICC) between MRI-derived DOI and histopathological DOI was 0.869 (95% CI 0.837-0.895), and was 0.923 (95% CI 0.894-0.944) in the T1WI subgroup and 0.790 (95% CI 0.718-0.845) in the T2WI subgroup. MRI is an accurate modality for evaluating the DOI in oral tongue SCC, and T1WI showed relatively higher validity than T2WI for DOI measurements.
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Affiliation(s)
- M Li
- Hunan Key Laboratory of Oral Health Research, Hunan 3D Printing Engineering Research Centre of Oral Care, Academician Workstation for Oral-Maxillofacial and Regenerative Medicine, Hunan Clinical Research Centre of Oral Major Diseases and Oral Health, Xiangya Stomatological Hospital and Xiangya School of Stomatology, Central South University, Changsha, Hunan, China
| | - Z Yuan
- Department of Periodontics, Changsha Stomatological Hospital, Changsha, Hunan, China
| | - Z Tang
- Hunan Key Laboratory of Oral Health Research, Hunan 3D Printing Engineering Research Centre of Oral Care, Academician Workstation for Oral-Maxillofacial and Regenerative Medicine, Hunan Clinical Research Centre of Oral Major Diseases and Oral Health, Xiangya Stomatological Hospital and Xiangya School of Stomatology, Central South University, Changsha, Hunan, China.
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Yuan Z, Cheng X, Li T, Zhou Y, Zhang Y, Gong X, Chang GE, Birowosuto MD, Dang C, Chen YC. Light-Harvesting in Biophotonic Optofluidic Microcavities via Whispering-Gallery Modes. ACS Appl Mater Interfaces 2021; 13:36909-36918. [PMID: 34310119 DOI: 10.1021/acsami.1c09845] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Phycobiliproteins are a class of light-harvesting fluorescent proteins existing in cyanobacteria and microalgae, which harvest light and convert it into electricity. Owing to recent demands on environmental-friendly and renewable apparatuses, phycobiliproteins have attracted substantial interest in bioenergy and sustainable devices. However, converting energy from biological materials remains challenging to date. Herein, we report a novel scheme to enhance biological light-harvesting through light-matter interactions at the biointerface of whispering-gallery modes (WGMs), where phycobiliproteins were employed as the active gain material. By exploiting microdroplets as a carrier for light-harvesting biomaterials, strong local electric field enhancement and photon confinement at the cavity interface resulted in significantly enhanced bio-photoelectricity. A threshold-like behavior was discovered in photocurrent enhancement and the WGM modulated fluorescence. Systematic studies of biologically produced photoelectricity and optical mode resonance were carried out to illustrate the impact of the cavity quality factor, structural geometry, and refractive indices. Finally, a biomimetic system was investigated by exploiting cascade energy transfer in phycobiliprotein assembly composed of three light-harvesting proteins. The key findings not only highlight the critical role of optical cavity in light-harvesting but also offer deep insights into light energy coupling in biomaterials.
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Affiliation(s)
- Zhiyi Yuan
- School of Electrical and Electronics Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
| | - Xin Cheng
- School of Electrical and Electronics Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
| | - Tsungyu Li
- School of Electrical and Electronics Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
| | - Yunke Zhou
- School of Electrical and Electronics Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
| | - Yifan Zhang
- School of Electrical and Electronics Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
| | - Xuerui Gong
- School of Electrical and Electronics Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
| | - Guo-En Chang
- Department of Mechanical Engineering, and Advanced Institute of Manufacturing with High-Tech Innovations, National Chung Cheng University, Chiayi 62102, Taiwan
| | - Muhammad D Birowosuto
- School of Electrical and Electronics Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
| | - Cuong Dang
- School of Electrical and Electronics Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
| | - Yu-Cheng Chen
- School of Electrical and Electronics Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, 637459, Singapore
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30
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Yuan Z, Zhou Y, Qiao Z, Aik CE, Tu WC, Wu X, Chen YC. Correction to Stimulated Chiral Light-Matter Interactions in Biological Microlasers. ACS Nano 2021; 15:12452. [PMID: 34240609 DOI: 10.1021/acsnano.1c04980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
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31
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Wang C, Gong C, Zhang Y, Qiao Z, Yuan Z, Gong Y, Chang GE, Tu WC, Chen YC. Programmable Rainbow-Colored Optofluidic Fiber Laser Encoded with Topologically Structured Chiral Droplets. ACS Nano 2021; 15:11126-11136. [PMID: 34137585 DOI: 10.1021/acsnano.1c02650] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Optofluidic lasers are emerging building blocks with immense potential in the development of miniaturized light sources, integrated photonics, and sensors. The capability of on-demand lasing output with programmable and continuous wavelength tunability over a broad spectral range enables key functionalities in wavelength-division multiplexing and manipulation of light-matter interactions. However, the ability to control multicolor lasing characteristics within a small mode volume with high reconfigurability remains challenging. The color gamut is also restricted by the number of dyes and emission wavelength of existing materials. In this study, we introduce a fully programmable multicolor laser by encapsulating organic-dye-doped cholesteric liquid crystal microdroplet lasers in an optofluidic fiber. A mechanism for tuning laser emission wavelengths was proposed by manipulating the topologically induced nanoshell structures in microdroplets with different chiral dopant concentrations. Precision control of distinctive lasing wavelengths and colors covering the entire visible spectra was achieved, including monochromatic lasing, dual-color lasing, tri-color lasing, and white colored lasing with tunable color temperatures. Our findings revealed a CIE color map with 145% more perceptible colors than the standard RGB space, shedding light on the development of programmable lasers, multiplexed encoding, and biomedical detection.
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Affiliation(s)
- Chenlu Wang
- School of Electrical and Electronics Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
| | - Chaoyang Gong
- School of Electrical and Electronics Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
| | - Yifan Zhang
- School of Electrical and Electronics Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
| | - Zhen Qiao
- School of Electrical and Electronics Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
| | - Zhiyi Yuan
- School of Electrical and Electronics Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
| | - Yuan Gong
- Key Laboratory of Optical Fiber Sensing and Communications, University of Electronic Science and Technology of China, 611731, Chengdu, Sichuan, China
| | - Guo-En Chang
- Department of Mechanical Engineering, and Advanced Institute of Manufacturing with High-Tech Innovations, National Chung Cheng University, Chiayi 62102, Taiwan
| | - Wei-Chen Tu
- Department of Electrical Engineering, National Cheng Kung University, Tainan City, 70101, Taiwan
| | - Yu-Cheng Chen
- School of Electrical and Electronics Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
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Zhang DW, Gu GQ, Chen XY, Zha GC, Yuan Z, Wu Y. LINC00665 facilitates the progression of osteosarcoma via sponging miR-3619-5p. Eur Rev Med Pharmacol Sci 2021; 24:9852-9859. [PMID: 33090388 DOI: 10.26355/eurrev_202010_23195] [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] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Long non-coding RNAs (lncRNAs) play vital roles in the pathogenesis and development of multiple cancers, including osteosarcoma (OS). The present study aims to investigate the role of LINC00665 in OS progression. PATIENTS AND METHODS The expression levels of LINC00665 and miR-3619 were assessed by RT-qPCR. The correlation between LINC00665 and miR-3619 expression was evaluated by Pearson's correlation analysis. The interaction between LINC00665 and miR-3619 was predicted by starBase, which was further confirmed by Luciferase reporter assay and RIP assay. The viability, invasion, and migration of OS cells were analyzed by CCK-8 and transwell assays. RESULTS LINC00665 expression was upregulated in OS tissues and cell lines, and the high level of LINC00665 was associated with poor prognosis in OS. Moreover, LINC00665 knockdown attenuated the viability, invasion, and migration of OS cells. In addition, miR-3619 was demonstrated to be a target of LINC00665. Overexpression of miR-3619 inhibited OS progression, while this effect was abolished by the upregulation of LINC00665. CONCLUSIONS We demonstrated that LINC 00665 accelerated OS development by targeting miR-3619. These findings might provide potential treatment strategies for patients with OS.
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Affiliation(s)
- D-W Zhang
- Department of Orthopedics, The Affiliated Shuyang Hospital of Xuzhou Medical University, Jiangsu, China.
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33
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Gong C, Qiao Z, Yuan Z, Huang S, Wang W, Wu PC, Chen Y. Topological Encoded Vector Beams for Monitoring Amyloid-Lipid Interactions in Microcavity. Adv Sci (Weinh) 2021; 8:2100096. [PMID: 34194941 PMCID: PMC8224421 DOI: 10.1002/advs.202100096] [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] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 02/25/2021] [Indexed: 05/05/2023]
Abstract
Lasers are the pillars of modern photonics and sensing. Recent advances in microlasers have demonstrated its extraordinary lasing characteristics suitable for biosensing. However, most lasers utilized lasing spectrum as a detection signal, which can hardly detect or characterize nanoscale structural changes in microcavity. Here the concept of amplified structured light-molecule interactions is introduced to monitor tiny bio-structural changes in a microcavity. Biomimetic liquid crystal droplets with self-assembled lipid monolayers are sandwiched in a Fabry-Pérot cavity, where subtle protein-lipid membrane interactions trigger the topological transformation of output vector beams. By exploiting Amyloid β (Aβ)-lipid membrane interactions as a proof-of-concept, it is demonstrated that vector laser beams can be viewed as a topology of complex laser modes and polarization states. The concept of topological-encoded laser barcodes is therefore developed to reveal dynamic changes of laser modes and Aβ-lipid interactions with different Aβ assembly structures. The findings demonstrate that the topology of vector beams represents significant features of intracavity nano-structural dynamics resulted from structured light-molecule interactions.
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Affiliation(s)
- Chaoyang Gong
- School of Electrical and Electronic EngineeringNanyang Technological University50 Nanyang AvenueSingapore639798Singapore
| | - Zhen Qiao
- School of Electrical and Electronic EngineeringNanyang Technological University50 Nanyang AvenueSingapore639798Singapore
| | - Zhiyi Yuan
- School of Electrical and Electronic EngineeringNanyang Technological University50 Nanyang AvenueSingapore639798Singapore
| | - Shih‐Hsiu Huang
- Department of PhotonicsNational Cheng Kung UniversityTainan70101Taiwan
| | - Wenjie Wang
- Key Lab of Advanced Transducers and Intelligent Control System of Ministry of EducationTaiyuan University of TechnologyTaiyuan030024P. R. China
| | - Pin Chieh Wu
- Department of PhotonicsNational Cheng Kung UniversityTainan70101Taiwan
| | - Yu‐Cheng Chen
- School of Electrical and Electronic EngineeringNanyang Technological University50 Nanyang AvenueSingapore639798Singapore
- School of Chemical and Biomedical EngineeringNanyang Technological University62 Nanyang DriveSingapore637459Singapore
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Abstract
Chiral light-matter interactions have emerged as a promising area in biophysics and quantum optics. Great progress in enhancing chiral light-matter interactions have been investigated through passive resonators or spontaneous emission. Nevertheless, the interaction between chiral biomolecules and stimulated emission remains unexplored. Here we introduce the concept of a biological chiral laser by amplifying chiral light-matter interactions in an active resonator through stimulated emission process. Green fluorescent proteins or chiral biomolecules encapsulated in Fabry-Perot microcavity served as the gain material while excited by either left-handed or right-handed circularly polarized pump laser. Owing to the nonlinear pump energy dependence of stimulated emission, significant enhancement of chiral light-matter interactions was demonstrated. Detailed experiments and theory revealed that a lasing dissymmetry factor is determined by molecular absorption dissymmetry factor at its excitation wavelength. Finally, chirality transfer was investigated under a stimulated emission process through resonance energy transfer. Our findings elucidate the mechanism of stimulated chiral light-matter interactions, providing better understanding of light-matter interaction in biophysics, chiral sensing, and quantum biophotonics.
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Affiliation(s)
- Zhiyi Yuan
- School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798 Singapore
| | - Yunke Zhou
- School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798 Singapore
| | - Zhen Qiao
- School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798 Singapore
| | - Chan Eng Aik
- Centre for Disruptive Photonic Technologies, TPI and SPMS, Nanyang Technological University, 21 Nanyang Link, 637371 Singapore
| | - Wei-Chen Tu
- Department of Electrical Engineering, National Cheng Kung University, Tainan City 701, Taiwan
| | - Xiaoqin Wu
- College of Optoelectronic Engineering, Chongqing University, Chongqing 400044, China
| | - Yu-Cheng Chen
- School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798 Singapore
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, 637459 Singapore
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35
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Wang Y, Li W, Zhao T, Zou Y, Deng T, Yang Z, Yuan Z, Ma L, Yu R, Wang T, Yu C. Interleukin-17-Producing CD4 + T Cells Promote Inflammatory Response and Foster Disease Progression in Hyperlipidemic Patients and Atherosclerotic Mice. Front Cardiovasc Med 2021; 8:667768. [PMID: 33981738 PMCID: PMC8107221 DOI: 10.3389/fcvm.2021.667768] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2021] [Accepted: 03/11/2021] [Indexed: 12/14/2022] Open
Abstract
Atherosclerosis is a chronic inflammatory disease. Interleukin-17-producing CD4+ T cells (Th17 cells) play important roles in the progression of atherosclerosis. However, most of the studies were focused on the advanced stage of atherosclerosis. In the current study, we investigated the roles of Th17 cells, relevant mechanisms in hyperlipidemic patients, and different stages of atherosclerotic mice. Human blood samples were collected, and percentages of Th17 cells, macrophages, and neutrophils were analyzed by flow cytometry. ApoE−/− mice were fed with high-fat diet (HFD) and sacrificed at different time points to evaluate the infiltration of inflammatory cells at different stages of atherosclerosis. Furthermore, essential mechanisms of IL-17A in atherosclerotic inflammatory milieu formation were studied in vivo by intraperitoneal injection with monoclonal anti-murine IL-17 antibody. Our study reveals the higher percentages of Th17 cells, monocytes, and neutrophils in hyperlipidemic patients compared to healthy donors. Meanwhile, we also identify an infiltration of Th17 cells in the early stage of atherosclerosis (4 weeks after HFD), which maintains at high level until late stage of atherosclerosis (20 weeks after HFD). What is more, inflammatory cells including macrophages and neutrophils were also accumulated in atherosclerotic lesions. Neutralization of IL-17 in ApoE−/− mice resulted in less infiltration of macrophages and neutrophils and smaller atherosclerotic lesions. Importantly, in accordance with what is found in the mouse model, positive correlations between Th17 cells and macrophages or neutrophils were observed in hyperlipidemic patients. In conclusion, our clinical and mouse model data together reveal a pro-atherogenic role of Th17 cells through the promotion of inflammation in hyperlipidemic conditions and different stages of atherosclerosis, which further supports the notion that IL-17 may be a therapy target for the treatment of atherosclerosis.
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Affiliation(s)
- Yin Wang
- College of Pharmacy, Chongqing Medical University, Chongqing, China.,Chongqing Key Laboratory for Pharmaceutical Metabolism Research, Chongqing, China.,Chongqing Pharmacodynamic Evaluation Engineering Technology Research Center, Chongqing, China
| | - Wenming Li
- Department of Clinical Laboratory, University-Town Hospital of Chongqing Medical University, Chongqing, China
| | - Tingrui Zhao
- College of Pharmacy, Chongqing Medical University, Chongqing, China.,Chongqing Key Laboratory for Pharmaceutical Metabolism Research, Chongqing, China.,Chongqing Pharmacodynamic Evaluation Engineering Technology Research Center, Chongqing, China
| | - Yao Zou
- College of Pharmacy, Chongqing Medical University, Chongqing, China.,Chongqing Key Laboratory for Pharmaceutical Metabolism Research, Chongqing, China.,Chongqing Pharmacodynamic Evaluation Engineering Technology Research Center, Chongqing, China
| | - Tao Deng
- Research Center of Pharmaceutical Preparations and Nanomedicine, College of Pharmacy, Chongqing Medical University, Chongqing, China
| | - Zhangyou Yang
- Research Center of Pharmaceutical Preparations and Nanomedicine, College of Pharmacy, Chongqing Medical University, Chongqing, China
| | - Zhiyi Yuan
- College of Pharmacy, Chongqing Medical University, Chongqing, China.,Chongqing Key Laboratory for Pharmaceutical Metabolism Research, Chongqing, China.,Chongqing Pharmacodynamic Evaluation Engineering Technology Research Center, Chongqing, China
| | - Limei Ma
- College of Pharmacy, Chongqing Medical University, Chongqing, China.,Chongqing Key Laboratory for Pharmaceutical Metabolism Research, Chongqing, China.,Chongqing Pharmacodynamic Evaluation Engineering Technology Research Center, Chongqing, China
| | - Ruihong Yu
- College of Pharmacy, Chongqing Medical University, Chongqing, China.,Chongqing Key Laboratory for Pharmaceutical Metabolism Research, Chongqing, China.,Chongqing Pharmacodynamic Evaluation Engineering Technology Research Center, Chongqing, China
| | - Tingting Wang
- College of Pharmacy, Chongqing Medical University, Chongqing, China.,Chongqing Key Laboratory for Pharmaceutical Metabolism Research, Chongqing, China.,Chongqing Pharmacodynamic Evaluation Engineering Technology Research Center, Chongqing, China
| | - Chao Yu
- College of Pharmacy, Chongqing Medical University, Chongqing, China.,Chongqing Key Laboratory for Pharmaceutical Metabolism Research, Chongqing, China.,Chongqing Pharmacodynamic Evaluation Engineering Technology Research Center, Chongqing, China
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Qian XH, Zheng M, Zheng YQ, He JY, Yao YM, Tao R, Ma L, Li DM, Yuan Z. [Analysis on prediction power of HIV infection risk assessment tool in men who have sex with men in Guizhou province]. Zhonghua Liu Xing Bing Xue Za Zhi 2021; 42:672-676. [PMID: 34814449 DOI: 10.3760/cma.j.cn112338-20200923-01180] [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] [Indexed: 03/09/2023]
Abstract
Objective: To evaluate the prediction power of HIV infection risk assessment tool and the applicability in MSM in Guizhou province. Methods: MSM were recruited through snowball sampling method. Questionnaire surveys were conducted among the MSM using HIV infection risk assessment tool, and combined with HIV serologic test results, the risk prediction power of HIV infection risk assessment tool was evaluated. Results: A total of 3 379 MSM were recruited from January 2018 to December 2019 in Guizhou. The HIV infection rate was 3.3%(111/3 379). The mean risk scores of HIV positive and HIV negative MSM were (12.15±3.08) and (12.07±3.07), respectively. The difference in risk score was significant between MSM with different HIV status (t=8.69, P<0.001). According to the principle of decision tree, individual risk scores were divided into following three categories: ≤11.96, 11.97-14.80 and >14.80, the HIV infection rate was 0.8%, 4.3% and 8.6% respectively, suggesting that the higher the individual risk score was, the higher the HIV infection rate was (trend χ2=88.18, P<0.001). Multivariate logistic regression analysis showed that the higher the individual risk score was, the higher the risk of HIV infection was. Compared to the total score ≤11.96, the aOR values at total scores of 11.97-14.80 and >14.80 were 6.34 (95%CI: 3.38-11.88) and 14.07(95%CI: 7.44-26.61), respectively. The risk of HIV infection in Miao ethnic group was higher than that in Han ethnic group (aOR=1.83, 95%CI:1.04-3.21), and the risk of HIV infection in those with education level of primary school and below was higher than that in undergraduates or those with education level of junior college and above (aOR=2.50, 95%CI:1.06-5.88), and the risk of HIV infection was higher in those who had bisexual behaviors than in those who had homosexual behaviors (aOR=1.95, 95%CI:1.19-3.19). The risk of HIV infection was higher in those who had never received HIV testing (aOR=1.53, 95%CI:1.01-2.33). The area under the receiver operating characteristic (ROC) curve and area under ROC (AUC) for HIV infection prediction was 0.751 (95%CI:0.710-0.792, P<0.001). The maximum Youden's index was individual risk score of 12.56, and the sensitivity of the risk assessment tool was 0.838, and its specificity was 0.412. Conclusions: The results of HIV infection risk assessment tool in Guizhou indicated that in MSM the higher the individual risk score, the higher the risk of HIV infection is. The tool can be used to evaluate the risk of HIV infection in MSM, but the specificity should be improved.
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Affiliation(s)
- X H Qian
- Guizhou Provincial Center for Disease Control and Prevention, Guiyang 550004, China
| | - M Zheng
- Guizhou Provincial Center for Disease Control and Prevention, Guiyang 550004, China
| | - Y Q Zheng
- Guizhou Provincial Center for Disease Control and Prevention, Guiyang 550004, China
| | - J Y He
- Department of Epidemiology, School of Public Health, Fudan University, Shanghai 200032, China
| | - Y M Yao
- Guizhou Provincial Center for Disease Control and Prevention, Guiyang 550004, China
| | - R Tao
- Guizhou Provincial Center for Disease Control and Prevention, Guiyang 550004, China
| | - L Ma
- Guizhou Provincial Center for Disease Control and Prevention, Guiyang 550004, China
| | - D M Li
- National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Z Yuan
- Guizhou Provincial Center for Disease Control and Prevention, Guiyang 550004, China
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Xu C, Sun J, Zhang W, Yuan Z, Wang J. The safety and efficacy of Cyberknife® for thymic malignancy. Cancer Radiother 2021; 25:119-125. [PMID: 33676829 DOI: 10.1016/j.canrad.2020.06.026] [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: 04/06/2020] [Revised: 05/29/2020] [Accepted: 06/07/2020] [Indexed: 12/28/2022]
Abstract
PURPOSE To evaluate the safety and efficacy of Cyberknife® (CK) for the treatment of primary or recurring thymic tumours. MATERIALS AND METHODS We retrospectively reviewed 12 patients (16 tumour lesions) with primary or recurring thymic tumours who were treated with CK between March 2008 and October 2017. Their data was stored in prospectively collected database. Kaplan-Meier method was used to calculate survival curves. RESULTS Five patients (41.7%), who had inoperable disease or refused surgery, were treated with CK initially, and 7 patients (58.3%) were treated with CK when they had recurrence diseases. The disease sites treated with CK were primary tumour site (5), regional lymph nodes (4), tumour bed (3), chest wall (2), pleura (1), and bone (1). The median target volume was 43.8 cm3 (range, 13.1-302.5cm3) for the 16 tumour lesions. The median follow-up time was 69.3 months (range, 9.7-124.8 months). The median survival time was 48.2 months, and the 5-year and 10-year OS rates were 68.2% and 45.5%, respectively. A high response rate for the tumour lesions irradiated with CK was obtained. Only one patient (8%) experienced in-field recurrence, and the 5-year local recurrence free survival was 90.9%. A case indicated that CK may induce the abscopal effect, which provides the potential to combine CK and immunotherapy. No severe radiation related toxicities were observed, and no treatment related death occurred. CONCLUSION CK treatment resulted in good outcomes, particularly local control, with minimal side effects, in highly selected patients with primary and recurring thymic tumours. More studies with larger sample are needed.
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Affiliation(s)
- C Xu
- Department of radiation oncology, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - J Sun
- Department of radiation oncology, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - W Zhang
- Department of radiation oncology, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - Z Yuan
- Department of radiation oncology, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - J Wang
- Department of radiation oncology, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China.
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38
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Affiliation(s)
- Huiqiang Gui
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237
| | - Zizhao Huang
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237
| | - Zhiyi Yuan
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237
| | - Xiang Ma
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237
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Shen X, Sha W, Yang C, Pan Q, Cohen T, Cheng S, Cai Q, Kan X, Zong P, Zeng Z, Tan S, Liang R, Bai L, Xia J, Wu S, Sun P, Wu G, Cai C, Wang X, Ai K, Liu J, Yuan Z. Continuity of TB services during the COVID-19 pandemic in China. Int J Tuberc Lung Dis 2021; 25:81-83. [PMID: 33384053 DOI: 10.5588/ijtld.20.0632] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Affiliation(s)
- X Shen
- Division of TB and HIV/AIDS Prevention, Shanghai Municipal Center for Disease Control and Prevention, Shanghai
| | - W Sha
- Department of Tuberculosis, Shanghai Pulmonary Hospital, Shanghai Clinical Research Center for infectious disease, Shanghai
| | - C Yang
- Department of Epidemiology of Microbial Diseases, Yale School of Public Health, Yale University, New Haven, CT, USA
| | - Q Pan
- Division of TB and HIV/AIDS Prevention, Shanghai Municipal Center for Disease Control and Prevention, Shanghai
| | - T Cohen
- Department of Epidemiology of Microbial Diseases, Yale School of Public Health, Yale University, New Haven, CT, USA
| | - S Cheng
- Chinese Center for Diseases Control and Prevention, Beijing
| | - Q Cai
- Division of Tuberculosis, Zhejiang Provincial Integrated Chinese and Western Medicine Hospital, Hangzhou, Zhejiang Province
| | - X Kan
- Department of Scientific Research and Education, Anhui Chest Hospital, Hefei, Anhui Province
| | - P Zong
- Division of Tuberculosis, Jiangxi Chest Hospital, Nanchang, Jiangxi Province
| | - Z Zeng
- Division of Tuberculosis, The Fifth People´s Hospital, Gangzhou, Jiangxi Province
| | - S Tan
- Department of Tuberculosis, Guangzhou Chest Hospital. Guangzhou, Guangdong Province
| | - R Liang
- Department of Tuberculosis, Henan Provincial Chest Hospital, Zhengzhou, Henan Province
| | - L Bai
- Hunan Chest Hospital, Changsha, Hunan Province
| | - J Xia
- South Five Disease Zones, Wuhan Jinyintan Hospital, Wuhan, Hubei Province
| | - S Wu
- Hebei Province Chest Hospital, Shijiazhuang, Hebei Province
| | - P Sun
- Tuberculosis Hospital of Jilin Province, Changchun, Jilin Province
| | - G Wu
- Department of Tuberculosis, Public Health Clinical Center of Chengdu, Chengdu, Sichuan Province
| | - C Cai
- Tuberculosis Diagnosis and Treatment Quality Control Center, Guiyang Public Health Treatment Center, Zunyi Medical University, Zunyi, Guizhou Province
| | - X Wang
- The Fourth People´s Hospital of Ningxia Hui Autonomous Region, Yinchuan, Ningxia Hui Autonomous Region, China
| | - K Ai
- Department of Tuberculosis, Shanghai Pulmonary Hospital, Shanghai Clinical Research Center for infectious disease, Shanghai
| | - J Liu
- Chinese Center for Diseases Control and Prevention, Beijing
| | - Z Yuan
- Division of TB and HIV/AIDS Prevention, Shanghai Municipal Center for Disease Control and Prevention, Shanghai
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Abstract
Lasing particles are emerging tools for amplifying light-matter interactions at the biointerface by exploiting its strong intensity and miniaturized size. Recent advances in implementing laser particles into living cells and tissues have opened a new frontier in biological imaging, monitoring, and tracking. Despite remarkable progress in micro- and nanolasers, lasing particles with surface functionality remain challenging due to the low mode-volume while maintaining a high Q-factor. Herein, we report the novel concept of bioresponsive microlasers by exploiting interfacial energy transfer based on whispering-gallery-mode (WGM) microdroplet cavities. Lasing wavelengths were manipulated by energy transfer-induced changes of a gain spectrum resulting from the binding molecular concentrations at the cavity surface. Both protein-based and enzymatic-based interactions were demonstrated, shedding light on the development of functional microlasers. Finally, tunable lasing wavelengths over a broad spectral range were achieved by selecting different donor/acceptor pairs. This study not only opens new avenues for biodetection, but also provides deep insights into how molecules modulate laser light at the biointerface, laying the foundation for the development of smart bio-photonic devices at the molecular level.
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Affiliation(s)
- Zhiyi Yuan
- School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore.
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41
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Abstract
Advances in switchable microlasers have emerged as a building block with immense potential in controlling light-matter interactions and integrated photonics. Compared to artificially designed interfaces, a stimuli-responsive biointerface enables a higher level of functionalities and versatile ways of tailoring optical responses at the nanoscale. However, switching laser emission with biological recognition has yet to be addressed, particularly with reversibility and wavelength tunability over a broad spectral range. Here we demonstrate a self-switchable laser exploiting the biointerface between label-free DNA molecules and dye-doped liquid crystal matrix in a Fabry-Perot microcavity. Laser emission switching among different wavelengths was achieved by utilizing DNA conformation changes as the switching power, which alters the orientation of the liquid crystals. Our findings demonstrate that different concentrations of single-stranded DNA lead to different temporal switching of lasing wavelengths and intensities. The lasing wavelength could be reverted upon binding with the complementary sequence through DNA hybridization process. Both experimental and theoretical studies revealed that absorption strength is the key mechanism accounting for the laser shifting behavior. This study represents a milestone in achieving a biologically controlled laser, shedding light on the development of programmable photonic devices at the sub-nanoscale by exploiting the complexity and self-recognition of biomolecules.
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Affiliation(s)
- Yifan Zhang
- School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
| | - Xuerui Gong
- School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
| | - Zhiyi Yuan
- School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
| | - Wenjie Wang
- Key Lab of Advanced Transducers and Intelligent Control System of Ministry of Education, Taiyuan University of Technology, Taiyuan 030024, P. R. China
| | - Yu-Cheng Chen
- School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, 637459, Singapore
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42
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Yuan Z, Zou L, Chang D, Ma X. Conformation-Dependent Phosphorescence of Galactose-Decorated Phosphors and Assembling-Induced Phosphorescence Enhancement. ACS Appl Mater Interfaces 2020; 12:52059-52069. [PMID: 33166107 DOI: 10.1021/acsami.0c17119] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Amorphous organic room-temperature phosphorescent (RTP) materials are promising for their facile preparation and processability, while the conformation effects of phosphors at amorphous state are lack of study in comparison with the rigid effects due to the commonly irregular assembling and dispersal of phosphors in rigid systems. Herein, we report a series of phosphorescent molecules modified by polyhydroxy galactose, whose RTP emission at the amorphous state can be regulated by controlling the conformational distortion of the phosphorescent segments. Further, a strong RTP emission is facilely obtained by the co-assembling between polyhydroxy phosphors and polyhydroxy matrices (α-CD, β-CD, and chitosan). Owing to the rigid effect of the enhanced hydrogen bonding cross-linking, the highest RTP quantum yield reaches 19.4%; whereas, the RTP emissions of assemblies become conformation insensitive. The conflicting relationship between the conformation effect and rigid effect is attributed to the differences between aggregated single-component systems and dispersed assembling systems. Besides, the unique and different moisture responsiveness of the co-assembling samples is discovered and further applied in data encryption. The research expands the scope for designing amorphous pure organic RTP materials with supramolecular strategies and shows a modularized approach for assembling-enhanced phosphorescence.
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Affiliation(s)
- Zhiyi Yuan
- Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Lei Zou
- Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Dongdong Chang
- Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Xiang Ma
- Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China
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43
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Wu Z, Chen J, Xia Z, Pan Q, Yuan Z, Zhang W, Shen X. Impact of the COVID-19 pandemic on the detection of TB in Shanghai, China. Int J Tuberc Lung Dis 2020; 24:1122-1124. [PMID: 33126952 DOI: 10.5588/ijtld.20.0539] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Affiliation(s)
- Z Wu
- Department of Infectious Diseases, Huashan Hospital, Fudan University, Shanghai, Department of Tuberculosis Control, Shanghai Municipal Center for Disease Control and Prevention, Shanghai, China, ,
| | - J Chen
- Department of Tuberculosis Control, Shanghai Municipal Center for Disease Control and Prevention, Shanghai, China, ,
| | - Z Xia
- Department of Tuberculosis Control, Shanghai Municipal Center for Disease Control and Prevention, Shanghai, China, ,
| | - Q Pan
- Department of Tuberculosis Control, Shanghai Municipal Center for Disease Control and Prevention, Shanghai, China, ,
| | - Z Yuan
- Department of Tuberculosis Control, Shanghai Municipal Center for Disease Control and Prevention, Shanghai, China, ,
| | - W Zhang
- Department of Infectious Diseases, Huashan Hospital, Fudan University, Shanghai
| | - X Shen
- Department of Tuberculosis Control, Shanghai Municipal Center for Disease Control and Prevention, Shanghai, China, ,
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Xu B, Sun T, Zhang Q, Zhang P, Yuan Z, Jiang Z, Wang X, Cui S, Teng Y, Hu XC, Yang J, Pan H, Tong Z, Li H, Yao Q, Wang Y, Yin Y, Sun P, Zheng H, Cheng J, Lu J, Zhang B, Geng C, Liu J, Shen K, Yu S, Li H, Tang L, Qiu R. Efficacy of utidelone plus capecitabine versus capecitabine for heavily pretreated, anthracycline- and taxane-refractory metastatic breast cancer: final analysis of overall survival in a phase III randomised controlled trial. Ann Oncol 2020; 32:218-228. [PMID: 33188874 DOI: 10.1016/j.annonc.2020.10.600] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 09/29/2020] [Accepted: 10/31/2020] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Primary analysis of the phase III trial BG01-1323L demonstrated that utidelone plus capecitabine significantly improved progression-free survival (PFS) and overall response rate (ORR) versus capecitabine alone in heavily-pretreated patients with metastatic breast cancer (MBC). Here, we report the final overall survival (OS) analysis and updates of other endpoints. PATIENTS AND METHODS In total, 405 patients were randomised 2:1 to receive utidelone (30 mg/m2 IV daily, days 1-5, over 90 min) plus capecitabine (1000 mg/m2 orally b.i.d., days 1-14) or capecitabine alone (1250 mg/m2 orally b.i.d., days 1-14) every 21 days. The secondary endpoint, OS, was estimated using the Kaplan-Meier product-limit approach at a two-sided alpha level of 0.05 after the prespecified 310 death events had been reached. Exploratory analyses of the primary endpoint, PFS, and the secondary endpoint, ORR, were also done. Safety was analysed in patients who had at least one dose of study drug. RESULTS At the final OS analysis, the median duration of follow-up was 19.6 months in the utidelone plus capecitabine group and 15.4 months in the capecitabine alone group. In the intention-to-treat population, 313 deaths had occurred at data cut-off, 203 of 270 patients in the combination group and 110 of 135 in the monotherapy group. Median OS in the combination group was 19.8 months compared with 16.0 months in the monotherapy group [hazard ratio (HR) = 0.75, 95% confidence intervals (CI) 0.59-0.94, P = 0.0142]. The updated analysis of PFS and ORR showed that the combination therapy remained superior to monotherapy. Safety results were similar to those previously reported with respect to incidence, severity and specificity. No late-emerging toxicities or new safety concerns occurred. CONCLUSIONS For heavily-pretreated, anthracycline- and taxane-resistant MBC patients, utidelone plus capecitabine significantly improved OS versus capecitabine alone. These results support the use of utidelone plus capecitabine as a novel therapeutic regimen for patients with MBC.
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Affiliation(s)
- B Xu
- Department of Medical Oncology, National Cancer Centre/National Clinical Research Centre for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China; State Key Laboratory of Molecular Oncology, National Cancer Centre/Cancer Hospital, Chinese Academy of Medical Sciences, Beijing, China.
| | - T Sun
- Department of Internal Medicine, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang, China
| | - Q Zhang
- Department of Medical Oncology, Harbin Medical University Cancer Hospital, Harbin, China
| | - P Zhang
- Department of Medical Oncology, National Cancer Centre/National Clinical Research Centre for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Z Yuan
- Department of Medical Oncology, Sun Yat-sen University Cancer Centre, Guangzhou, China
| | - Z Jiang
- Department of Breast Cancer, The Fifth Medical Cent, Chinese PLA General Hospital, Beijing, China
| | - X Wang
- Department of Breast Medical Oncology, Zhejiang Cancer Hospital, Hangzhou, China
| | - S Cui
- Breast Cancer Centre, Henan Cancer Hospital, Zhengzhou, China
| | - Y Teng
- Department of Medical Oncology, The First Hospital of China Medical University, Shenyang, China
| | - X-C Hu
- Department of Medical Oncology, Fudan University Cancer Center, Shanghai, China
| | - J Yang
- Department of Medical Oncology, The PLA General Hospital, Beijing, China
| | - H Pan
- Department of Medical Oncology, Sir Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Z Tong
- Department of Breast Oncology, Tianjin Medical University Cancer Hospital, Tianjin, China
| | - H Li
- Department of Breast Oncology, Peking University Cancer Hospital, Beijing, China
| | - Q Yao
- Department of Medical Oncology, Nankai University Tianjing People's Hospital, Tianjing, China
| | - Y Wang
- Breast Cancer Center, Shandong Cancer Hospital Affiliated to Shandong University, Jinan, China
| | - Y Yin
- Department of Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - P Sun
- Department of Oncology, Qingdao University Yantai Yuhuangding Hospital, Yantai, China
| | - H Zheng
- Department of Medical Oncology, Sichuan University West China Hospital, Chengdu, China
| | - J Cheng
- Department of Oncology, Tongji Medical College Wuhan Union Hospital, Wuhan, China
| | - J Lu
- Department of Breast Surgery, Shanghai Jiaotong University Renji Hospital, Shanghai, China
| | - B Zhang
- Department of Medical Oncology, Nantong Tumor Hospital, Nantong, China
| | - C Geng
- Department of Breast Oncology, Hebei Medical University Tumor Hospital, Shijiazhuang, China
| | - J Liu
- Department of Medical Oncology, Fujian Medical University Cancer Hospital, Fuzhou, China
| | - K Shen
- Comprehensive Breast Health Center, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - S Yu
- Cancer Center, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, China
| | - H Li
- Department of Breast Surgery, Sichuan Cancer Hospital, Chengdu, China
| | - L Tang
- Department of Research and Development, Beijing Biostar Technologies, Beijing, China
| | - R Qiu
- Department of Research and Development, Beijing Biostar Technologies, Beijing, China
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Roxby DN, Rivy H, Gong C, Gong X, Yuan Z, Chang GE, Chen YC. Microalgae living sensor for metal ion detection with nanocavity-enhanced photoelectrochemistry. Biosens Bioelectron 2020; 165:112420. [DOI: 10.1016/j.bios.2020.112420] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Revised: 06/13/2020] [Accepted: 06/30/2020] [Indexed: 01/07/2023]
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46
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Zhang L, Liu XL, Yuan Z, Cui J, Zhang H. MiR-99a suppressed cell proliferation and invasion by directly targeting HOXA1 through regulation of the AKT/mTOR signaling pathway and EMT in ovarian cancer. Eur Rev Med Pharmacol Sci 2020; 23:4663-4672. [PMID: 31210292 DOI: 10.26355/eurrev_201906_18046] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Ovarian cancer (OC) is the third frequently tumor worldwide. MicroRNA-99a (miR-99a), acting as a tumor suppressor, has been reported to be downregulated in multiple tumors. We aimed at exploring the significant roles of miR-99a in ovarian cancer. PATIENTS AND METHODS Quantitative Real-time polymerase chain reaction (qRT-PCR) and Western blotting were applied to calculate the mRNA and protein levels of miR-99a and its target genes. Kaplan-Meier method was conducted to evaluate the overall survival of ovarian cancer patients. CCK8 and transwell assays were performed to measure the proliferative and invasive abilities. RESULTS miR-99a, acting as a prognosis predictor, was downregulated in ovarian cancer tissues and cell lines. miR-99a mediated the expression of homeobox A1 (HOXA1) through directly targeting to the 3'-untranslated region (3'-UTR) of its mRNA in ovarian cancer cell lines. miR-99a inhibited the proliferation of ovarian cancer by AKT/mTOR pathway in vitro and in vivo, and it suppressed the invasion-mediated epithelial-mesenchymal transition (EMT) through direct targeting to the 3'-UTR of HOXA1 mRNA. CONCLUSIONS miR-99a suppressed the proliferation through AKT/mTOR signaling pathway and the invasion-mediated EMT in ovarian cancer. The newly identified miR-99a/HOXA1/AKT/mTOR axis provides novel insight into the pathogenesis of ovarian cancer.
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Affiliation(s)
- L Zhang
- Department of Obstetrics and Gynecology, Qilu Hospital, Shandong University, Jinan, China.
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47
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Li H, Wang L, Yuan Z. PDB14 Cost-Effectiveness of Liraglutide Versus Exenatide, BOTH in Combination with Metformin for Patients with Type 2 Diabetes in China. Value Health Reg Issues 2020. [DOI: 10.1016/j.vhri.2020.07.173] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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48
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Li H, Wang L, Yuan Z. PDB6 Cost-Effectiveness of Liraglutide Versus Insulin Glargine, BOTH in Combination with Metformin for Patients with Type 2 Diabetes in China. Value Health Reg Issues 2020. [DOI: 10.1016/j.vhri.2020.07.165] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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49
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Zeng FL, Ren ZY, Li Y, Zeng JY, Jia MW, Miao J, Hoffmann A, Zhang W, Wu YZ, Yuan Z. Intrinsic Mechanism for Anisotropic Magnetoresistance and Experimental Confirmation in Co_{x}Fe_{1-x} Single-Crystal Films. Phys Rev Lett 2020; 125:097201. [PMID: 32915598 DOI: 10.1103/physrevlett.125.097201] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2020] [Revised: 07/13/2020] [Accepted: 07/31/2020] [Indexed: 06/11/2023]
Abstract
Using first-principles transport calculations, we predict that the anisotropic magnetoresistance (AMR) of single-crystal Co_{x}Fe_{1-x} alloys is strongly dependent on the current orientation and alloy concentration. An intrinsic mechanism for AMR is found to arise from the band crossing due to magnetization-dependent symmetry protection. These special k points can be shifted towards or away from the Fermi energy by varying the alloy composition and hence the exchange splitting, thus allowing AMR tunability. The prediction is confirmed by delicate transport measurements, which further reveal a reciprocal relationship of the longitudinal and transverse resistivities along different crystal axes.
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Affiliation(s)
- F L Zeng
- Department of Physics, State Key Laboratory of Surface Physics, Fudan University, Shanghai 200433, China
| | - Z Y Ren
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
- Center for Advanced Quantum Studies and Department of Physics, Beijing Normal University, Beijing 100875, China
| | - Y Li
- Department of Physics, Oakland University, Rochester, Michigan 48309, USA
- Materials Science Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - J Y Zeng
- Department of Physics, State Key Laboratory of Surface Physics, Fudan University, Shanghai 200433, China
| | - M W Jia
- Department of Physics, State Key Laboratory of Surface Physics, Fudan University, Shanghai 200433, China
| | - J Miao
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - A Hoffmann
- Materials Science Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - W Zhang
- Department of Physics, Oakland University, Rochester, Michigan 48309, USA
- Materials Science Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - Y Z Wu
- Department of Physics, State Key Laboratory of Surface Physics, Fudan University, Shanghai 200433, China
- Shanghai Research Center for Quantum Sciences, Shanghai 201315, China
| | - Z Yuan
- Center for Advanced Quantum Studies and Department of Physics, Beijing Normal University, Beijing 100875, China
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50
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Wang Z, Zhang Y, Gong X, Yuan Z, Feng S, Xu T, Liu T, Chen YC. Bio-electrostatic sensitive droplet lasers for molecular detection. Nanoscale Adv 2020; 2:2713-2719. [PMID: 36132400 PMCID: PMC9418021 DOI: 10.1039/d0na00107d] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2020] [Accepted: 05/18/2020] [Indexed: 05/21/2023]
Abstract
Electrostatics plays a critical function in most biomolecules, therefore monitoring molecular electrostatic interactions at the biointerface can provide the basis in diagnosis and biomedical science. Herein we report a bioelectrostatic responsive microlaser based on liquid crystal (LC) droplets and explored its application for the ultrasensitive detection of negatively charged biomolecules. A whispering gallery mode (WGM) laser from positively charged LC microdroplets was designed as the optical resonator, in which the lasing wavelength shift was employed as the sensing parameter. We verified that molecular electrostatic changes at the biointerface of the droplet trigger a wavelength shift in laser spectra. Compared to a conventional polarized optical microscope, a significantly improved sensitivity and dynamic range by four orders of magnitude were achieved. Our results helped discover that the surface-to-volume ratio plays a critical role in the detection sensitivity in WGM laser-based microsensors. Finally, bovine serum albumin and specific biosensing were exploited to demonstrate the potential applications of microlasers with a detection limit in the order of 1 pM, thus offering new alternatives for ultrasensitive label-free biosensing and monitoring of molecular interactions.
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Affiliation(s)
- Ziyihui Wang
- School of Precision Instrument and Opto-Electronics, Tianjin University Tianjin 300072 China
| | - Yifan Zhang
- School of Electrical and Electronics Engineering, Nanyang Technological University 639798 Singapore
| | - Xuerui Gong
- School of Electrical and Electronics Engineering, Nanyang Technological University 639798 Singapore
| | - Zhiyi Yuan
- School of Electrical and Electronics Engineering, Nanyang Technological University 639798 Singapore
| | - Shilun Feng
- School of Electrical and Electronics Engineering, Nanyang Technological University 639798 Singapore
| | - Tianhua Xu
- School of Precision Instrument and Opto-Electronics, Tianjin University Tianjin 300072 China
| | - Tiegen Liu
- School of Precision Instrument and Opto-Electronics, Tianjin University Tianjin 300072 China
| | - Yu-Cheng Chen
- School of Electrical and Electronics Engineering, Nanyang Technological University 639798 Singapore
- School of Chemical and Biomedical Engineering, Nanyang Technological University 639798 Singapore
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