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Shen J, Gong L, Sun Y, Lin J, Hu W, Wei J, Miao X, Gao T, Suo J, Xu J, Chai Y, Bao B, Qian Y, Zheng X. Semaphorin3C identified as mediator of neuroinflammation and microglia polarization after spinal cord injury. iScience 2024; 27:109649. [PMID: 38638567 PMCID: PMC11025009 DOI: 10.1016/j.isci.2024.109649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 02/01/2024] [Accepted: 03/27/2024] [Indexed: 04/20/2024] Open
Abstract
Excessive neuroinflammation after spinal cord injury (SCI) is a major hurdle during nerve repair. Although proinflammatory macrophage/microglia-mediated neuroinflammation plays important roles, the underlying mechanism that triggers neuroinflammation and aggravating factors remain unclear. The present study identified a proinflammatory role of semaphorin3C (SEMA3C) in immunoregulation after SCI. SEMA3C expression level peaked 7 days post-injury (dpi) and decreased by 14 dpi. In vivo and in vitro studies revealed that macrophages/microglia expressed SEMA3C in the local microenvironment, which induced neuroinflammation and conversion of proinflammatory macrophage/microglia. Mechanistic experiments revealed that RAGE/NF-κB was downstream target of SEMA3C. Inhibiting SEMA3C-mediated RAGE signaling considerably suppressed proinflammatory cytokine production, reversed polarization of macrophages/microglia shortly after SCI. In addition, inhibition of SEMA3C-mediated RAGE signaling suggested that the SEMA3C/RAGE axis is a feasible target to preserve axons from neuroinflammation. Taken together, our study provides the first experimental evidence of an immunoregulatory role for SEMA3C in SCI via an autocrine mechanism.
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Affiliation(s)
- Junjie Shen
- Department of Orthopedic Surgery, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, P.R. China
| | - Liangzhi Gong
- Department of Orthopedic Surgery, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, P.R. China
| | - Yi Sun
- Department of Orthopedic Surgery, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, P.R. China
| | - Junqing Lin
- Department of Orthopedic Surgery, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, P.R. China
| | - Wencheng Hu
- Department of Orthopedic Surgery, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, P.R. China
| | - Jiabao Wei
- Department of Orthopedic Surgery, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, P.R. China
| | - Xin Miao
- Department of Orthopedic Surgery, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, P.R. China
| | - Tao Gao
- Department of Orthopedic Surgery, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, P.R. China
| | - Jinlong Suo
- Department of Orthopedic Surgery, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, P.R. China
| | - Jia Xu
- Department of Orthopedic Surgery, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, P.R. China
| | - Yimin Chai
- Department of Orthopedic Surgery, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, P.R. China
| | - Bingbo Bao
- Department of Orthopedic Surgery, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, P.R. China
| | - Yun Qian
- Department of Orthopedic Surgery, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, P.R. China
| | - Xianyou Zheng
- Department of Orthopedic Surgery, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, P.R. China
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Miao X, Lin J, Li A, Gao T, Liu T, Shen J, Sun Y, Wei J, Bao B, Zheng X. AAV-mediated VEGFA overexpression promotes angiogenesis and recovery of locomotor function following spinal cord injury via PI3K/Akt signaling. Exp Neurol 2024; 375:114739. [PMID: 38401852 DOI: 10.1016/j.expneurol.2024.114739] [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: 11/16/2023] [Revised: 02/09/2024] [Accepted: 02/20/2024] [Indexed: 02/26/2024]
Abstract
Spinal cord injury (SCI) is a disorder of the central nervous system resulting from various factors such as trauma, inflammation, tumors, and other etiologies. This condition leads to impairment in motor, sensory, and autonomic functions below the level of injury. Limitations of current therapeutic approaches prompt an investigation into therapeutic angiogenesis through persistent local expression of proangiogenic factors. Here, we investigated whether overexpression of adeno-associated virus (AAV)-mediated vascular endothelial growth factor A (VEGFA) in mouse SCI promoted locomotor function recovery, and whether the phosphoinositide 3-kinase (PI3K)/protein kinase B (Akt) pathway was mechanistically involved. Three weeks before SCI, AAV-VEGFA was injected at the T10 level to induce VEGFA overexpression. Neurofunctional, histological, and biochemical assessments were done to determine tissue damage and/or recovery of neuromuscular and behavioral impairments. Daily injections of the PI3K/Akt pathway inhibitor LY294002 were made to assess a possible mechanism. AAV-VEGFA overexpression dramatically improved locomotor function and ameliorated pathological injury caused by SCI. Improved motor-evoked potentials in hindlimbs and more spinal CD31-positive microvessels were observed in AAV-VEGFA-overexpressing mice. LY294002 reduced PI3K and Akt phosphorylation levels and attenuated AAV-VEGFA-related improvements. In conclusion, sustained local AAV-mediated VEGFA overexpression in spinal cord can significantly promote angiogenesis and ameliorate locomotor impairment after SCI in a contusion mouse model through activation of the PI3K/Akt signaling pathway.
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Affiliation(s)
- Xin Miao
- Department of Orthopaedic Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China; National Center for Orthopaedics, Shanghai, China
| | - Junqing Lin
- Department of Orthopaedic Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China; National Center for Orthopaedics, Shanghai, China
| | - Ang Li
- Department of Orthopaedic Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China; National Center for Orthopaedics, Shanghai, China
| | - Tao Gao
- Department of Orthopaedic Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China; National Center for Orthopaedics, Shanghai, China
| | - Tiexin Liu
- Department of Orthopaedic Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China; National Center for Orthopaedics, Shanghai, China
| | - Junjie Shen
- Department of Orthopaedic Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China; National Center for Orthopaedics, Shanghai, China
| | - Yi Sun
- Department of Orthopaedic Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China; National Center for Orthopaedics, Shanghai, China
| | - Jiabao Wei
- Department of Orthopaedic Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China; National Center for Orthopaedics, Shanghai, China
| | - Bingbo Bao
- Department of Orthopaedic Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China; National Center for Orthopaedics, Shanghai, China
| | - Xianyou Zheng
- Department of Orthopaedic Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China; National Center for Orthopaedics, Shanghai, China.
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Zhao F, Zhou W, Xin R, Miao X. Expression and clinical diagnostic value of CCHE1 in breast cancer. Mutagenesis 2024; 39:141-145. [PMID: 38150355 DOI: 10.1093/mutage/gead038] [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: 08/29/2023] [Accepted: 12/25/2023] [Indexed: 12/29/2023] Open
Abstract
OBJECTIVE Breast cancer is a malignant tumor in the epithelial tissue of the breast gland. This study aimed to unveil the expression and clinical diagnostic value of lncRNA cervical cancer high-expressed 1 (CCHE1) in breast cancer. METHODS CCHE1 expression in breast cancer tissues was evaluated by RT-qPCR. The relationship between the CCHE1 expression and clinicopathological features of breast cancer was analyzed with the chi-square test, and the survival of breast cancer patients was evaluated with the Kaplan-Meier method. The diagnostic value of CCHE1 expression for breast cancer was evaluated by using the receiver operating characteristics (ROC) curve. Breast cancer cell lines (SKBR3, T47D, BT474, and MCF-7) were cultured for detecting CCHE1 expression in the cells. MCF-7 cells were selected for the subsequent experiments, and the small interfering RNA of CCHE1 (si-CCHE1) and CCHE1 overexpression vector (pcDNA-CCHE1) were transfected into MCF-7 cells. The proliferation, migration, and invasive ability were assessed by CCK-8 and Transwell assays. The influence of CCHE1 on the growth of tumors was validated by nude mice xenograft assay. RESULTS CCHE1 was up-regulated in breast cancer tissues and breast cancer cells. The high expression level of CCHE1 in cancer tissues of breast cancer patients was correlated with larger tumor size, advanced TNM stage, Ki-67 status, and lymph node metastasis. The area under the ROC curve for CCHE1 in the diagnosis of breast cancer was 0.983 (95% CI: 0.966-1.000), with a sensitivity of 95.00% and a specificity of 91.70%. The 5-year survival rate was higher in patients with low CCHE1 expression than those with high CCHE1 expression. Furthermore, restrained CCHE1 impeded proliferation, invasion, and migration of MCF-7 cells, as well as tumor growth in mice. CONCLUSION Our study highlights that elevated expression of CCHE1 in breast cancer tissues, which is closely related to clinicopathologic features, has some clinical value in the diagnosis of the disease.
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Affiliation(s)
- Feng Zhao
- Department of Breast Surgery, The Second Affiliated Hospital of Shandong First Medical University, Taian 271000, Shandong, China
| | - Wenjuan Zhou
- Department of Breast Surgery, The Second Affiliated Hospital of Shandong First Medical University, Taian 271000, Shandong, China
| | - Ran Xin
- Department of Breast Surgery, The Second Affiliated Hospital of Shandong First Medical University, Taian 271000, Shandong, China
| | - Xin Miao
- Department of Breast Surgery, The Second Affiliated Hospital of Shandong First Medical University, Taian 271000, Shandong, China
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Chai C, Tang H, Yi J, Li L, Yu C, Su Y, Miao L, Ye Z, Wang Z, Luo W, Hu J, Zhang H, Miao X, Xu H, Zhou W. Establishment and characterization of DPC-X4: a novel mixed-type ampullary cancer cell line. Hum Cell 2024; 37:531-545. [PMID: 38253956 DOI: 10.1007/s13577-023-01023-0] [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] [Subscribe] [Scholar Register] [Received: 11/25/2023] [Accepted: 12/18/2023] [Indexed: 01/24/2024]
Abstract
Mixed-type ampullary cancer is a distinct subtype of ampullary cancer that manifests a merging of the biological characteristics of both intestinal and pancreaticobiliary subtypes. The absence of established cell lines specific to this subtype has resulted in a concomitant scarcity of research on its tumorigenic mechanisms and the development of novel therapeutic modalities. The present study achieved the successful establishment of a novel mixed-type ampullary cancer cell line, designated DPC-X4 through primary culture techniques. Subsequent analyses pertaining to phenotypic characteristics, molecular profiling, biomarker identification, and histological features validated the DPC-X4 cell line as a potent model for delineating the pathogenesis of mixed-type ampullary cancer and facilitating the development of new pharmacological agents. This newly established cell line was subjected to continuous cultivation for 1 year, with stable passaging for over 50 generations. Notably, the DPC-X4 cell line manifested typical morphological features associated with epithelial tumors. Furthermore, the population doubling time for the DPC-X4 cell line was determined at 70 h. Short tandem repeat (STR) analysis confirmed that the DPC-X4 cell line exhibited a high genetic concordance with the primary tumor from the patient. Karyotypic profiling indicated an abnormal sub-triploid karyotype, with representative karyotypes of 57, XXY inv (9), 14p + , 15p + , der (17), + mar. The DPC-X4 cell line demonstrated a high capacity for efficient organoid formation under suspension culture conditions. In addition, the subcutaneous inoculation of DPC-X4 cells into NXG mice led to the formation of xenografted tumors. The results of drug sensitivity testing indicated that DPC-X4 cells were sensitive to paclitaxel and resistant to oxaliplatin, 5-fluorouracil, and gemcitabine. Immunohistochemistry revealed positive expression of CK7, CK19, and CK20 in DPC-X4 cells, while CDX2 demonstrated negative expression. In addition, positive expression of E-cadherin and vimentin was identified in DPC-X4 cells, with a proliferation index indicated by Ki-67 at 70%. The findings of our study establish DPC-X4 as a novel mixed-type ampullary cancer cell line, which can serve as a potential experimental model for exploring the pathogenesis of ampullary cancer and the development of therapeutic drugs.
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Affiliation(s)
- Changpeng Chai
- The Fourth Department of General Surgery, The First Hospital of Lanzhou University, Lanzhou, 730000, China
- The Second Clinical Medical College, Lanzhou University, Lanzhou, 730000, China
| | - Huan Tang
- The Second Clinical Medical College, Lanzhou University, Lanzhou, 730000, China
| | - Jianfeng Yi
- The First Clinical Medical College, Lanzhou University, Lanzhou, 730000, China
- Department of Surgery, The First School of Clinical Medicine of Gansu University of Chinese Medicine, Lanzhou, 730000, China
| | - Lu Li
- The Fourth Department of General Surgery, The First Hospital of Lanzhou University, Lanzhou, 730000, China
| | - Cheng Yu
- The Second Clinical Medical College, Lanzhou University, Lanzhou, 730000, China
- Department of Anesthesiology, Lanzhou University Second Hospital, Lanzhou, 730000, China
| | - Yuanhui Su
- The Second Clinical Medical College, Lanzhou University, Lanzhou, 730000, China
| | - Long Miao
- The Fourth Department of General Surgery, The First Hospital of Lanzhou University, Lanzhou, 730000, China
- The Second Clinical Medical College, Lanzhou University, Lanzhou, 730000, China
| | - Zhenzhen Ye
- The Second Clinical Medical College, Lanzhou University, Lanzhou, 730000, China
- The First School of Clinical Medicine of Gansu University of Chinese Medicine, Lanzhou, 730000, China
| | - Zhengfeng Wang
- The Fourth Department of General Surgery, The First Hospital of Lanzhou University, Lanzhou, 730000, China
- The Second Clinical Medical College, Lanzhou University, Lanzhou, 730000, China
| | - Wei Luo
- The Fourth Department of General Surgery, The First Hospital of Lanzhou University, Lanzhou, 730000, China
| | - Jinjing Hu
- The Fourth Department of General Surgery, The First Hospital of Lanzhou University, Lanzhou, 730000, China
| | - Hui Zhang
- The Second Clinical Medical College, Lanzhou University, Lanzhou, 730000, China
- Department of General Surgery, Lanzhou University Second Hospital, No. 82 Cuiyingmen, Chengguan District, Lanzhou, 730000, China
| | - Xin Miao
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Animal Virology of Ministry of Agriculture, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, 730000, China.
| | - Hao Xu
- The Fourth Department of General Surgery, The First Hospital of Lanzhou University, Lanzhou, 730000, China.
- The First Clinical Medical College, Lanzhou University, Lanzhou, 730000, China.
| | - Wence Zhou
- The Second Clinical Medical College, Lanzhou University, Lanzhou, 730000, China.
- Department of General Surgery, Lanzhou University Second Hospital, No. 82 Cuiyingmen, Chengguan District, Lanzhou, 730000, China.
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Feng E, Siu YL, Wong CWY, Li S, Miao X. Can environmental information disclosure spur corporate green innovation? Sci Total Environ 2024; 912:169076. [PMID: 38052390 DOI: 10.1016/j.scitotenv.2023.169076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 11/04/2023] [Accepted: 12/01/2023] [Indexed: 12/07/2023]
Abstract
How can the disclosure of environmental information (EID) stimulate corporate green innovation (CGI)? This research challenges the prevailing assumption that environmental regulations impact CGI by influencing corporate compliance costs. Instead, it offers a fresh theoretical framework to explain how EID affects CGI. This study combines signal theory and resource dependence theory to develop a moderated mediation model, illustrating how EID reduces information asymmetry and alleviates corporate financial constraints (CFC). To test these hypotheses, this study utilized data from A-share listed companies spanning the period 2004 to 2017. This study considered the year 2009 as a crucial point of analysis, marking the period before and after the implementation of China's first EID policy in 2008. This study employed a Difference-in-Differences (DID) model. The results reveal that EID has a positive impact on CGI by mitigating CFC, with non-state-owned enterprises (non-SOEs) exhibiting a more pronounced mediating effect. These findings remain robust even when the parallel trend assumption was tested to eliminate interference from other factors. This study unveils the mechanism through which voluntary environmental regulation, represented by EID, influences CGI by mitigating information asymmetry and alleviating CFC. These results deviate from the predictions of compliance cost theory and Porter's hypothesis regarding the impact of traditional environmental regulations on CGI, providing a fresh perspective on the role of voluntary environmental regulation in driving CGI.
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Affiliation(s)
- Enhui Feng
- School of Management, Harbin Institute of Technology, Harbin 150001, PR China
| | - Yim Ling Siu
- School of Earth & Environment, the University of Leeds, Leeds LS2 9JT, UK
| | - Christina W Y Wong
- Business Division, The Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hunghom, Kowloon, Hong Kong
| | - Shuangshuang Li
- School of Management, Harbin Institute of Technology, Harbin 150001, PR China
| | - Xin Miao
- School of Management, Harbin Institute of Technology, Harbin 150001, PR China.
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Liu J, Miao X, Yao J, Wan Z, Yang X, Tian W. Investigating the clinical role and prognostic value of genes related to insulin-like growth factor signaling pathway in thyroid cancer. Aging (Albany NY) 2024; 16:2934-2952. [PMID: 38329437 PMCID: PMC10911384 DOI: 10.18632/aging.205524] [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: 09/25/2023] [Accepted: 12/27/2023] [Indexed: 02/09/2024]
Abstract
BACKGROUND Thyroid cancer (THCA) is the most common endocrine malignancy having a female predominance. The insulin-like growth factor (IGF) pathway contributed to the unregulated cell proliferation in multiple malignancies. We aimed to explore the IGF-related signature for THCA prognosis. METHOD The TCGA-THCA dataset was collected from the Cancer Genome Atlas (TCGA) for screening of key prognostic genes. The limma R package was applied for differentially expressed genes (DEGs) and the clusterProfiler R package was used for the Gene Ontology (GO) and KEGG analysis of DEGs. Then, the un/multivariate and least absolute shrinkage and selection operator (Lasso) Cox regression analysis was used for the establishment of RiskScore model. Receiver Operating Characteristic (ROC) analysis was used to verify the model's predictive performance. CIBERSORT and MCP-counter algorithms were applied for immune infiltration analysis. Finally, we analyzed the mutation features and the correlation between the RiskScore and cancer hallmark pathway by using the GSEA. RESULT We obtained 5 key RiskScore model genes for patient's risk stratification from the 721 DEGs. ROC analysis indicated that our model is an ideal classifier, the high-risk patients are associated with the poor prognosis, immune infiltration, high tumor mutation burden (TMB), stronger cancer stemness and stronger correlation with the typical cancer-activation pathways. A nomogram combined with multiple clinical features was developed and exhibited excellent performance upon long-term survival quantitative prediction. CONCLUSIONS We constructed an excellent prognostic model RiskScore based on IGF-related signature and concluded that the IGF signal pathway may become a reliable prognostic phenotype in THCA intervention.
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Affiliation(s)
- Junyan Liu
- Department of General Surgery, The First Medical Center, Chinese People’s Liberation Army (PLA) General Hospital, Beijing 100853, China
| | - Xin Miao
- Department of General Surgery, The First Medical Center, Chinese People’s Liberation Army (PLA) General Hospital, Beijing 100853, China
| | - Jing Yao
- Department of General Surgery, The First Medical Center, Chinese People’s Liberation Army (PLA) General Hospital, Beijing 100853, China
| | - Zheng Wan
- Department of General Surgery, The First Medical Center, Chinese People’s Liberation Army (PLA) General Hospital, Beijing 100853, China
| | - Xiaodong Yang
- Department of General Surgery, The First Medical Center, Chinese People’s Liberation Army (PLA) General Hospital, Beijing 100853, China
| | - Wen Tian
- Department of General Surgery, The First Medical Center, Chinese People’s Liberation Army (PLA) General Hospital, Beijing 100853, China
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Xu H, Chai CP, Tang H, Su YH, Yu C, Li L, Yi JF, Ye ZZ, Wang ZF, Hu JJ, Luo W, Zhang H, Miao X, Zhou WC. Establishment and Characterization of a New Intrahepatic Cholangiocarcinoma Cell Line, ICC-X2. World J Oncol 2024; 15:114-125. [PMID: 38274721 PMCID: PMC10807924 DOI: 10.14740/wjon1757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2023] [Accepted: 12/11/2023] [Indexed: 01/27/2024] Open
Abstract
Background Intrahepatic cholangiocarcinoma (ICC) is an aggressive malignant tumor of the biliary tract that is prone to recurrence and metastasis and is characterized by poor sensitivity to chemotherapy and overall prognosis. For these reasons, there is an urgent need to understand its pathological mechanisms and develop effective treatments. To address this challenge, the establishment of suitable preclinical models is critical. Methods Fresh ICC tissue samples were used for primary culture and subculture. The cell line was evaluated by cell proliferation assays, clonal formation assays, karyotype analysis, and short tandem repeat (STR) analysis. Drug resistances against oxaliplatin, paclitaxel, gemcitabine and 5-fluorouracil (5-FU) were evaluated by CCK-8 assay. Subcutaneous injection of 1 × 106 cells to three BALB/c nude mice was conducted for xenograft studies. The hematoxylin and eosin (H&E) staining was used to detect the pathological status of the cell line. The expression of biomarkers CK7, CK19, Ki-67, E-cadherin and vimentin was determined by immunocytochemistry assay. Results A new ICC cell line named ICC-X2 was successfully established. Like ICC-X3 established using the same patient's metastatic tumor, the cell line has been continuously cultured in vitro for more than a year and has been passaged more than 100 times. ICC-X2 retained the typical biliary epithelial morphology. The population doubling time of ICC-X2 is 48 h. The cells demonstrated an abnormal nearly tetraploid karyotype. The STR analysis confirmed that ICC-X2 was highly consistent with the primary tumor tissue and not cross-contaminated by existing cell lines. ICC-X2 cells positively expressed CK7, CK19, E-cadherin, and vimentin, and the positive expression of Ki-67 in ICC-X2 cells was 40%. The ICC-X2 cells exhibited a strong clonogenic ability. The drug sensitivity test indicated that ICC-X2 was sensitive to oxaliplatin and paclitaxel, but naturally resistant to gemcitabine and 5-FU. ICC-X2 was rapidly able to form transplanted tumors in vivo after subcutaneous inoculation in nude mice. Conclusions ICC-X2 is an excellent experimental model that can be used for studying the occurrence, development, and metastasis of ICC and investigating the mechanism of tumor drug resistance.
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Affiliation(s)
- Hao Xu
- The Fourth Department of General Surgery, the First Hospital of Lanzhou University, Lanzhou 730000, China
- The First Clinical Medical College, Lanzhou University, Lanzhou 730000, China
- These authors contributed equally to this work
| | - Chang Peng Chai
- The Fourth Department of General Surgery, the First Hospital of Lanzhou University, Lanzhou 730000, China
- The Second Clinical Medical College, Lanzhou University, Lanzhou 730000, China
- These authors contributed equally to this work
| | - Huan Tang
- The Second Clinical Medical College, Lanzhou University, Lanzhou 730000, China
- These authors contributed equally to this work
| | - Yuan Hui Su
- The Second Clinical Medical College, Lanzhou University, Lanzhou 730000, China
| | - Cheng Yu
- The Second Clinical Medical College, Lanzhou University, Lanzhou 730000, China
- Department of Anesthesiology, Lanzhou University Second Hospital, Lanzhou 730000, China
| | - Lu Li
- The Fourth Department of General Surgery, the First Hospital of Lanzhou University, Lanzhou 730000, China
| | - Jian Feng Yi
- The First Clinical Medical College, Lanzhou University, Lanzhou 730000, China
- Department of Surgery, The First School of Clinical Medicine of Gansu University of Chinese Medicine, Lanzhou 730000, China
| | - Zhen Zhen Ye
- The Second Clinical Medical College, Lanzhou University, Lanzhou 730000, China
| | - Zheng Feng Wang
- The Fourth Department of General Surgery, the First Hospital of Lanzhou University, Lanzhou 730000, China
- The Second Clinical Medical College, Lanzhou University, Lanzhou 730000, China
| | - Jin Jing Hu
- The Fourth Department of General Surgery, the First Hospital of Lanzhou University, Lanzhou 730000, China
| | - Wei Luo
- The Fourth Department of General Surgery, the First Hospital of Lanzhou University, Lanzhou 730000, China
| | - Hui Zhang
- The Second Clinical Medical College, Lanzhou University, Lanzhou 730000, China
- Department of General Surgery, Lanzhou University Second Hospital, Lanzhou 730000, China
| | - Xin Miao
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Animal Virology of the Ministry of Agriculture, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730000, China
| | - Wen Ce Zhou
- The Second Clinical Medical College, Lanzhou University, Lanzhou 730000, China
- Department of General Surgery, Lanzhou University Second Hospital, Lanzhou 730000, China
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Miao X, Shen S, Koch G, Wang X, Li J, Shen X, Qu J, Straubinger RM, Jusko WJ. Systems pharmacodynamic model of combined gemcitabine and trabectedin in pancreatic cancer cells. Part I.Çô Effects on signal transduction pathways related to tumor growth. J Pharm Sci 2024; 113:214-227. [PMID: 38498417 PMCID: PMC11017371 DOI: 10.1016/j.xphs.2023.10.030] [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: 08/30/2023] [Revised: 10/22/2023] [Accepted: 10/22/2023] [Indexed: 03/20/2024]
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is often chemotherapy-resistant, and novel drug combinations would fill an unmet clinical need. Previously we reported synergistic cytotoxic effects of gemcitabine and trabectedin on pancreatic cancer cells, but underlying protein-level interaction mechanisms remained unclear. We employed a reliable, sensitive, comprehensive, quantitative, high-throughput IonStar proteomic workflow to investigate the time course of gemcitabine and trabectedin effects, alone and combined, upon pancreatic cancer cells. MiaPaCa-2 cells were incubated with vehicle (controls), gemcitabine, trabectedin, and their combinations over 72 hours. Samples were collected at intervals and analyzed using the label-free IonStar liquid chromatography-mass spectrometry (LC-MS/MS) workflow to provide temporal quantification of protein expression for 4,829 proteins in four experimental groups. To characterize diverse signal transduction pathways, a comprehensive systems pharmacodynamic (SPD) model was developed. The analysis is presented in two parts. Here, Part I describes drug responses in cancer cell growth and migration pathways included in the full model: receptor tyrosine kinase- (RTK), integrin-, G-protein coupled receptor- (GPCR), and calcium-signaling pathways. The developed model revealed multiple underlying mechanisms of drug actions, provides insight into the basis of drug interaction synergism, and offers a scientific rationale for potential drug combination strategies.
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Affiliation(s)
- Xin Miao
- Department of Pharmaceutical Sciences, University at Buffalo, SUNY, Buffalo, NY, United States
| | - Shichen Shen
- Department of Biochemistry, School of Medicine and Biomedical Sciences, University at Buffalo, SUNY, Buffalo, NY, United States; New York State Center of Excellence in Bioinformatics & Life Sciences, Buffalo, NY, United States
| | - Gilbert Koch
- Pediatric Pharmacology and Pharmacometrics Research Center, University of Basel, Children's Hospital, Basel, Switzerland
| | - Xue Wang
- New York State Center of Excellence in Bioinformatics & Life Sciences, Buffalo, NY, United States; Department of Cell Stress Biology, Roswell Park Cancer Institute, Buffalo, NY, United States
| | - Jun Li
- New York State Center of Excellence in Bioinformatics & Life Sciences, Buffalo, NY, United States
| | - Xiaomeng Shen
- Department of Biochemistry, School of Medicine and Biomedical Sciences, University at Buffalo, SUNY, Buffalo, NY, United States; New York State Center of Excellence in Bioinformatics & Life Sciences, Buffalo, NY, United States
| | - Jun Qu
- Department of Pharmaceutical Sciences, University at Buffalo, SUNY, Buffalo, NY, United States; New York State Center of Excellence in Bioinformatics & Life Sciences, Buffalo, NY, United States
| | - Robert M Straubinger
- Department of Pharmaceutical Sciences, University at Buffalo, SUNY, Buffalo, NY, United States; New York State Center of Excellence in Bioinformatics & Life Sciences, Buffalo, NY, United States; Department of Cell Stress Biology, Roswell Park Cancer Institute, Buffalo, NY, United States
| | - William J Jusko
- Department of Pharmaceutical Sciences, University at Buffalo, SUNY, Buffalo, NY, United States.
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Miao X, Koch G, Shen S, Wang X, Li J, Shen X, Qu J, Straubinger RM, Jusko WJ. Systems Pharmacodynamic Model of Combined Gemcitabine and Trabectedin in Pancreatic Cancer Cells. Part II: Cell Cycle, DNA Damage Response, and Apoptosis Pathways. J Pharm Sci 2024; 113:235-245. [PMID: 37918792 PMCID: PMC10902796 DOI: 10.1016/j.xphs.2023.10.036] [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: 08/30/2023] [Revised: 10/24/2023] [Accepted: 10/25/2023] [Indexed: 11/04/2023]
Abstract
Despite decades of research efforts, pancreatic adenocarcinoma (PDAC) continues to present a formidable clinical challenge, demanding innovative therapeutic approaches. In a prior study, we reported the synergistic cytotoxic effects of gemcitabine and trabectedin on pancreatic cancer cells. To investigate potential mechanisms underlying this synergistic pharmacodynamic interaction, liquid chromatography-mass spectrometry-based proteomic analysis was performed, and a systems pharmacodynamics model (SPD) was developed to capture pancreatic cancer cell responses to gemcitabine and trabectedin, alone and combined, at the proteome level. Companion report Part I describes the proteomic workflow and drug effects on the upstream portion of the SPD model related to cell growth and migration, specifically the RTK-, integrin-, GPCR-, and calcium-signaling pathways. This report presents Part II of the SPD model. Here we describe drug effects on pathways associated with cell cycle, DNA damage response (DDR), and apoptosis, and provide insights into underlying mechanisms. Drug combination effects on protein changes in the cell cycle- and apoptosis pathways contribute to the synergistic effects observed between gemcitabine and trabectedin. The SPD model was subsequently incorporated into our previously-established cell cycle model, forming a comprehensive, multi-scale quantification platform for evaluating drug effects across multiple scales, spanning the proteomic-, cellular-, and subcellular levels. This approach provides a quantitative mechanistic framework for evaluating drug-drug interactions in combination chemotherapy, and could potentially serve as a tool to predict combinatorial efficacy and assist in target selection.
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Affiliation(s)
- Xin Miao
- Department of Pharmaceutical Sciences, University at Buffalo, SUNY, Buffalo, NY, USA
| | - Gilbert Koch
- Pediatric Pharmacology and Pharmacometrics Research Center, University of Basel, Children's Hospital, Basel, Switzerland
| | - Shichen Shen
- Department of Biochemistry, School of Medicine and Biomedical Sciences, University at Buffalo, SUNY, Buffalo, NY, USA; New York State Center of Excellence in Bioinformatics & Life Sciences, Buffalo, NY, USA
| | - Xue Wang
- New York State Center of Excellence in Bioinformatics & Life Sciences, Buffalo, NY, USA; Department of Cell Stress Biology, Roswell Park Comprehensive Cancer Center, Buffalo, NY, USA
| | - Jun Li
- New York State Center of Excellence in Bioinformatics & Life Sciences, Buffalo, NY, USA
| | - Xiaomeng Shen
- Department of Biochemistry, School of Medicine and Biomedical Sciences, University at Buffalo, SUNY, Buffalo, NY, USA; New York State Center of Excellence in Bioinformatics & Life Sciences, Buffalo, NY, USA
| | - Jun Qu
- Department of Pharmaceutical Sciences, University at Buffalo, SUNY, Buffalo, NY, USA; New York State Center of Excellence in Bioinformatics & Life Sciences, Buffalo, NY, USA
| | - Robert M Straubinger
- Department of Pharmaceutical Sciences, University at Buffalo, SUNY, Buffalo, NY, USA; New York State Center of Excellence in Bioinformatics & Life Sciences, Buffalo, NY, USA; Department of Cell Stress Biology, Roswell Park Comprehensive Cancer Center, Buffalo, NY, USA
| | - William J Jusko
- Department of Pharmaceutical Sciences, University at Buffalo, SUNY, Buffalo, NY, USA.
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Miao X, Feng E, Siu YL, Li S, Wong CWY. Can China's carbon intensity constraint policies improve carbon emission performance? Evidence from regional carbon emissions. J Environ Manage 2023; 348:119268. [PMID: 37837759 DOI: 10.1016/j.jenvman.2023.119268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 09/28/2023] [Accepted: 10/02/2023] [Indexed: 10/16/2023]
Abstract
Carbon Intensity Constraint Policies (CICPs) are vital for addressing climate change challenges and advancing sustainable development. Since 2010, China has rolled out three five-year CICPs. However, there is limited understanding of their impact on carbon emission performance (CEP). Addressing this, this study pioneers the exploration of the CICP's impact on China's CEP. Drawing from government intervention and green paradox theories, this study highlights a concerning scenario: local governments achieve emission targets via excessive intervention. For deeper insights, this study melds the overall technology frontier concept with a non-radial, non-angle directional distance function, introducing a novel efficiency model rooted in the Data Envelopment Analysis (DEA) method. This offers a CEP measure across 30 Chinese provincial regions from 2002 to 2019. Using the quasi-difference-in-differences (quasi-DID) and moderated mediation models, this study ascertains the presence of the green paradox, uncovers its reasons, and suggests mitigation strategies. The results indicate that high government intervention diminishes CEP. This negative effect intensifies under greater regional fiscal pressure. Alarmingly, local authorities' eagerness to meet targets shows a counterproductive, inverted N-shaped trend regarding CICPs' time-based influence on regional CEP. Moreover, the impact varies based on regional economic development levels and stages. This study has ensured the robustness of the findings via parallel trend tests, parallel exclusion policies, a strengthened quasi-DID framework, and diverse control variable configurations. This study underscores the need for more balanced government intervention. It offers valuable policy insights, guiding China's upcoming CICP phase to realize the ambition of peaking carbon by 2030 and achieving carbon neutrality by 2060.
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Affiliation(s)
- Xin Miao
- School of Management, Harbin Institute of Technology, Harbin 150001, PR China.
| | - Enhui Feng
- School of Management, Harbin Institute of Technology, Harbin 150001, PR China.
| | - Yim Ling Siu
- School of Earth & Environment, The University of Leeds, Leeds LS2 9JT, UK.
| | - Shuangshuang Li
- School of Management, Harbin Institute of Technology, Harbin 150001, PR China.
| | - Christina W Y Wong
- Business Division, The Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hunghom, Kowloon, Hong Kong.
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11
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Miao X, Zhang L, Zhou P, Yu R, Zhang Z, Wang C, Guo H, Wang Y, Pan L, Liu X. Adenovirus-vectored PDCoV vaccines induce potent humoral and cellular immune responses in mice. Vaccine 2023; 41:6661-6671. [PMID: 37777448 DOI: 10.1016/j.vaccine.2023.09.053] [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: 03/02/2023] [Revised: 09/21/2023] [Accepted: 09/24/2023] [Indexed: 10/02/2023]
Abstract
Porcine deltacoronavirus (PDCoV) is a novel swine enteropathogenic coronavirus that causes severe watery diarrhea, vomiting, dehydration and high mortality in piglets, resulting in significant economic losses by the global pig industry. Recently, PDCoV has also shown the potential for cross-species transmission. However, there are currently few vaccine studies and no commercially available vaccines for PDCoV. Hence, here, two novel human adenovirus 5 (Ad5)-vectored vaccines expressing codon-optimized forms of the PDCoV spike (S) glycoprotein (Ad-PD-tPA-Sopt) and S1 glycoprotein (Ad-PD-oriSIP-S1opt) were constructed, and their effects were evaluated via intramuscular (IM) injection in BALB/c mice with different doses and times. Both vaccines elicited robust humoral and cellular immune responses; moreover, Ad-PD-tPA-Sopt-vaccinated mice after two IM injections with 108 infectious units (IFU)/mouse had significantly higher anti-PDCoV-specific neutralizing antibody titers. In contrast, the mice immunized with Ad-PD-tPA-Sopt via oral gavage (OG) did not generate robust systemic and mucosal immunity. Thus, IM Ad-PD-tPA-Sopt administration is a promising strategy against PDCoV and provides useful information for future animal vaccine development.
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Affiliation(s)
- Xin Miao
- State Key Laboratory for Animal Disease Control and Prevention, Key Laboratory of Animal Virology of Ministry of Agriculture, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China; Gansu Province Research Center for Basic Disciplines of Pathogen Biology, Lanzhou, China; National Center of Technology Innovation for Pigs, China
| | - Liping Zhang
- State Key Laboratory for Animal Disease Control and Prevention, Key Laboratory of Animal Virology of Ministry of Agriculture, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China; Gansu Province Research Center for Basic Disciplines of Pathogen Biology, Lanzhou, China; National Center of Technology Innovation for Pigs, China
| | - Peng Zhou
- State Key Laboratory for Animal Disease Control and Prevention, Key Laboratory of Animal Virology of Ministry of Agriculture, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China; Gansu Province Research Center for Basic Disciplines of Pathogen Biology, Lanzhou, China
| | - Ruiming Yu
- State Key Laboratory for Animal Disease Control and Prevention, Key Laboratory of Animal Virology of Ministry of Agriculture, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China; Gansu Province Research Center for Basic Disciplines of Pathogen Biology, Lanzhou, China; National Center of Technology Innovation for Pigs, China
| | - Zhongwang Zhang
- State Key Laboratory for Animal Disease Control and Prevention, Key Laboratory of Animal Virology of Ministry of Agriculture, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China; Gansu Province Research Center for Basic Disciplines of Pathogen Biology, Lanzhou, China; National Center of Technology Innovation for Pigs, China
| | - Cancan Wang
- State Key Laboratory for Animal Disease Control and Prevention, Key Laboratory of Animal Virology of Ministry of Agriculture, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China; Gansu Province Research Center for Basic Disciplines of Pathogen Biology, Lanzhou, China; National Center of Technology Innovation for Pigs, China
| | - Huichen Guo
- State Key Laboratory for Animal Disease Control and Prevention, Key Laboratory of Animal Virology of Ministry of Agriculture, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China; Gansu Province Research Center for Basic Disciplines of Pathogen Biology, Lanzhou, China
| | - Yonglu Wang
- State Key Laboratory for Animal Disease Control and Prevention, Key Laboratory of Animal Virology of Ministry of Agriculture, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China; Gansu Province Research Center for Basic Disciplines of Pathogen Biology, Lanzhou, China
| | - Li Pan
- State Key Laboratory for Animal Disease Control and Prevention, Key Laboratory of Animal Virology of Ministry of Agriculture, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China; Gansu Province Research Center for Basic Disciplines of Pathogen Biology, Lanzhou, China; National Center of Technology Innovation for Pigs, China.
| | - Xinsheng Liu
- State Key Laboratory for Animal Disease Control and Prevention, Key Laboratory of Animal Virology of Ministry of Agriculture, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China; Gansu Province Research Center for Basic Disciplines of Pathogen Biology, Lanzhou, China; National Center of Technology Innovation for Pigs, China.
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12
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Bennett S, Verry C, Kaza E, Miao X, Berbeco RI, Sudhyadhom A. Theranostic Nanoparticle Uptake in Patient Brain Tumors as Quantified by MP2RAGE T1 Mapping. Int J Radiat Oncol Biol Phys 2023; 117:S32. [PMID: 37784476 DOI: 10.1016/j.ijrobp.2023.06.296] [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) Modern radiation therapy techniques provide effective treatments for solid tumors, but there remain challenges with delivering high doses to elusive tumors without causing toxicity to surrounding normal tissue. Pre-clinical trials have demonstrated the theranostic properties of a recently developed gadolinium-based nanoparticle (Gd-NP). The first in-human clinical trial was conducted to assess the safety and dose tolerance of intravenous Gd-NPs in combination with whole brain radiotherapy and showed favorable results, including a significant correlation between tumor uptake and therapeutic response. The second, double-blinded, in-human clinical trial is underway in the US and aims to evaluate if brain-directed stereotactic radiation in conjunction with NPs will improve local tumor control compared to radiation alone. The current work investigates uptake patterns in brain tumors of 23 patients as quantified by magnetization prepared 2 rapid gradient echo (MP2RAGE) T1 mapping. MATERIALS/METHODS A phantom containing eight vials of NP-saline solutions at varying concentrations was created to examine the relationship between NP concentration and longitudinal relaxation (T1, in seconds). This relationship is known as relaxivity and is dependent on the contrast agent, field strength and T1 mapping sequence. A 3T MAGNETOM Vida scanner and MP2RAGE sequence were used to image the phantom and MP2RAGE T1 maps were calculated using Bloch equations (QMRLab software). Relaxivity was determined and applied to 23 patient T1 maps (pre- and post- Gd-NP administration) to calculate uptake on an individual tumor basis. Theranostic NP uptake was calculated for every voxel in each of 129 brain metastases and examined for patterns in quantity and distribution. RESULTS Average individual tumor uptake ranged from 0.02-0.12 mg/ml, where average overall uptake was equal to 0.05 mg/ml. A relationship between tumor diameter and mean NP concentration was observed and best represented by a power-based curve (R2 = 0.92). In contrast, patients with suspected placebo administration appeared to have no uptake and therefore no relationship with tumor diameter. The distribution of NP concentration within the tumor was also examined; on average, linear uptake profiles through tumor centroids (ant-post, left-right) demonstrated roughly gaussian patterns of uptake with lower concentrations at the tumor edges and higher concentrations at the tumor center. This pattern indicates robust tumor penetration and may have implications for amplifying radiation dose to hypoxic tumors. CONCLUSION Gd-NP uptake in brain metastases can be quantified using MP2RAGE T1 mapping. Uptake was determined for each voxel in each tumor volume, where a gaussian pattern of spatial concentrations was observed. This analysis procedure will be applied to the full data set, when available, to evaluate the impact of NP uptake (in conjunction with radiation therapy) within individual patients and individual tumors.
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Affiliation(s)
- S Bennett
- Department of Radiation Oncology, Brigham and Women's Hospital, Dana Farber Cancer Institute and Harvard Medical School, Boston, MA
| | - C Verry
- Centre Hospitalier Universitaire Grenoble-Alpes, Maquis du Grésivaudan, 38700 La Tronche, France
| | - E Kaza
- Department of Radiation Oncology, Brigham and Women's Hospital/Dana-Farber Cancer Institute, Boston, MA
| | - X Miao
- Siemens Medical Solutions USA Inc, Malvern, PA
| | - R I Berbeco
- Department of Radiation Oncology, Brigham and Women's Hospital, Dana Farber Cancer Institute and Harvard Medical School, Boston, MA
| | - A Sudhyadhom
- Department of Radiation Oncology, Brigham and Women's Hospital, Dana Farber Cancer Institute and Harvard Medical School, Boston, MA
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Miao X, Wu LS, Lin SXW, Xu Y, Chen Y, Iwaki Y, Kobos R, Stephenson T, Kemmerer K, Uhlar CM, Banerjee A, Goldberg JD, Trancucci D, Apte A, Verona R, Pei L, Desai R, Hickey K, Su Y, Ouellet D, Samtani MN, Guo Y, Garfall AL, Krishnan A, Usmani SZ, Zhou H, Girgis S. Population Pharmacokinetics and Exposure-Response with Teclistamab in Patients With Relapsed/Refractory Multiple Myeloma: Results From MajesTEC-1. Target Oncol 2023; 18:667-684. [PMID: 37713090 PMCID: PMC10518021 DOI: 10.1007/s11523-023-00989-z] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/08/2023] [Indexed: 09/16/2023]
Abstract
BACKGROUND Teclistamab, a B-cell maturation antigen × CD3 bispecific antibody, is approved in patients with relapsed/refractory multiple myeloma (RRMM) who have previously received an immunomodulatory agent, a proteasome inhibitor, and an anti-CD38 antibody. OBJECTIVE We report the population pharmacokinetics of teclistamab administered intravenously and subcutaneously (SC) and exposure-response relationships from the phase I/II, first-in-human, open-label, multicenter MajesTEC-1 study. METHODS Phase I of MajesTEC-1 consisted of dose escalation and expansion at the recommended phase II dose (RP2D; 1.5 mg/kg SC weekly, preceded by step-up doses of 0.06 and 0.3 mg/kg); phase II investigated the efficacy of teclistamab RP2D in patients with RRMM. Population pharmacokinetics and the impact of covariates on teclistamab systemic exposure were assessed using a 2-compartment model with first-order absorption for SC and parallel time-independent and time-dependent elimination pathways. Exposure-response analyses were conducted, including overall response rate (ORR), duration of response (DoR), progression-free survival (PFS), overall survival (OS), and the incidence of grade ≥ 3 anemia, neutropenia, lymphopenia, leukopenia, thrombocytopenia, and infection. RESULTS In total, 4840 measurable serum concentration samples from 338 pharmacokinetics-evaluable patients who received teclistamab were analyzed. The typical population value of time-independent and time-dependent clearance were 0.449 L/day and 0.547 L/day, respectively. The time-dependent clearance decreased rapidly to < 10% after 8 weeks of teclistamab treatment. Patients who discontinue teclistamab after the 13th dose are expected to have a 50% reduction from Cmax in teclistamab concentration at a median (5th to 95th percentile) time of 15 days (7-33 days) after Tmax and a 97% reduction from Cmax in teclistamab concentration at a median time of 69 days (32-163 days) after Tmax. Body weight, multiple myeloma type (immunoglobulin G vs non-immunoglobulin G), and International Staging System (ISS) stage (II vs I and III vs I) were statistically significant covariates on teclistamab pharmacokinetics; however, these covariates had no clinically relevant effect on the efficacy of teclistamab at the RP2D. Across all doses, ORR approached a plateau at the concentration range associated with RP2D, and in patients who received the RP2D, a flat exposure-response curve was observed. No apparent relationship was observed between DoR, PFS, OS, and the incidence of grade ≥3 adverse events across the predicted exposure quartiles. CONCLUSION Body weight, myeloma type, and ISS stage impacted systemic teclistamab exposure without any clinically relevant effect on efficacy. The exposure-response analyses for ORR showed a positive trend with increasing teclistamab systemic exposure, with a plateau at the RP2D, and there was no apparent exposure-response trend for safety or other efficacy endpoints. These analyses support the RP2D of teclistamab in patients with RRMM. CLINICAL TRIAL REGISTRATION NCT03145181 (phase I, 09 May 2017); NCT04557098 (phase II, 21 September 2020).
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Affiliation(s)
- Xin Miao
- Janssen Research & Development, Spring House, PA, USA.
| | - Liviawati S Wu
- Janssen Research & Development, South San Francisco, CA, USA
| | | | - Yan Xu
- Janssen Research & Development, Spring House, PA, USA
| | - Yang Chen
- Janssen Research & Development, Spring House, PA, USA
| | | | - Rachel Kobos
- Janssen Research & Development, Raritan, NJ, USA
| | | | | | | | | | | | | | - Amit Apte
- Janssen Research & Development, Raritan, NJ, USA
| | - Raluca Verona
- Janssen Research & Development, Spring House, PA, USA
| | - Lixia Pei
- Janssen Research & Development, Raritan, NJ, USA
| | - Rachit Desai
- Janssen Research & Development, Raritan, NJ, USA
| | | | - Yaming Su
- Janssen Research & Development, Raritan, NJ, USA
| | | | | | - Yue Guo
- Janssen Research & Development, Spring House, PA, USA
| | - Alfred L Garfall
- Abramson Cancer Center, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | | | - Saad Z Usmani
- Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Honghui Zhou
- Janssen Research & Development, Spring House, PA, USA
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Miao X, Ma J, Miu X, Zhang H, Geng Y, Hu W, Deng Y, Li N. Integrated transcriptome and proteome analysis the molecular mechanisms of nutritional quality in 'Chenggu-32' and 'Koroneiki' olives fruits (Olea europaea L.). J Plant Physiol 2023; 288:154072. [PMID: 37634413 DOI: 10.1016/j.jplph.2023.154072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2023] [Revised: 08/02/2023] [Accepted: 08/10/2023] [Indexed: 08/29/2023]
Abstract
In this work, integrated transcriptome and proteome to offer a new insight of the molecular mechanisms linked to the nutritional quality of Koroneiki and Chenggu-32 by RNA sequencing and 4D Label-free quantitative proteomics technology. Physical and chemical properties studies showed that the main nutrient content of Koroneiki was significantly higher than Chenggu-32, proved the quality of Koroneiki was better. Compared to Koroneiki, there were differences in expression levels of 10,115 genes and 723 proteins in Chenggu-32, mainly related to enzymes in lipid metabolism and lipid biosynthesis. Through the joint analysis of transcriptome and proteome, it was found that the differentially expressed genes and differentially expressed proteins on the association were mainly enriched in starch and sucrose metabolism and α-linolenic acid metabolism pathways, indicated that the nutritional quality of olive fruits was related to the two metabolic pathways. The results of this study identified key genes and proteins related to nutrient metabolism and accumulation in olive fruits, provided transcriptomic and proteomic information for the molecular mechanism of nutritional changes in olive fruit, it helps to develop higher quality olive trees.
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Affiliation(s)
- Xin Miao
- College of Life Science, Northwest Normal University, Lanzhou, 730070, China
| | - Junyi Ma
- College of Life Science, Northwest Normal University, Lanzhou, 730070, China.
| | - Xin Miu
- College of Life Science, Northwest Normal University, Lanzhou, 730070, China
| | - Hongjie Zhang
- College of Life Science, Northwest Normal University, Lanzhou, 730070, China
| | - Yinxin Geng
- College of Life Science, Northwest Normal University, Lanzhou, 730070, China
| | - Wei Hu
- College of Life Science, Northwest Normal University, Lanzhou, 730070, China
| | - Yu Deng
- Institute of Olive, Longnan Academy of Economic Forestry, Wudu, 746000, China
| | - Na Li
- Wudu Olive Industry Development Office of Longnan, Wudu, 746000, China.
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Marants R, Tattenberg S, Scholey J, Kaza E, Miao X, Benkert T, Magneson O, Fischer J, Vinas L, Niepel K, Bortfeld T, Landry G, Parodi K, Verburg J, Sudhyadhom A. Validation of an MR-based multimodal method for molecular composition and proton stopping power ratio determination using ex vivo animal tissues and tissue-mimicking phantoms. Phys Med Biol 2023; 68:10.1088/1361-6560/ace876. [PMID: 37463589 PMCID: PMC10645122 DOI: 10.1088/1361-6560/ace876] [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: 04/23/2023] [Accepted: 07/18/2023] [Indexed: 07/20/2023]
Abstract
Objective. Range uncertainty in proton therapy is an important factor limiting clinical effectiveness. Magnetic resonance imaging (MRI) can measure voxel-wise molecular composition and, when combined with kilovoltage CT (kVCT), accurately determine mean ionization potential (Im), electron density, and stopping power ratio (SPR). We aimed to develop a novel MR-based multimodal method to accurately determine SPR and molecular compositions. This method was evaluated in tissue-mimicking andex vivoporcine phantoms, and in a brain radiotherapy patient.Approach. Four tissue-mimicking phantoms with known compositions, two porcine tissue phantoms, and a brain cancer patient were imaged with kVCT and MRI. Three imaging-based values were determined: SPRCM(CT-based Multimodal), SPRMM(MR-based Multimodal), and SPRstoich(stoichiometric calibration). MRI was used to determine two tissue-specific quantities of the Bethe Bloch equation (Im, electron density) to compute SPRCMand SPRMM. Imaging-based SPRs were compared to measurements for phantoms in a proton beam using a multilayer ionization chamber (SPRMLIC).Main results. Root mean square errors relative to SPRMLICwere 0.0104(0.86%), 0.0046(0.45%), and 0.0142(1.31%) for SPRCM, SPRMM, and SPRstoich, respectively. The largest errors were in bony phantoms, while soft tissue and porcine tissue phantoms had <1% errors across all SPR values. Relative to known physical molecular compositions, imaging-determined compositions differed by approximately ≤10%. In the brain case, the largest differences between SPRstoichand SPRMMwere in bone and high lipids/fat tissue. The magnitudes and trends of these differences matched phantom results.Significance. Our MR-based multimodal method determined molecular compositions and SPR in various tissue-mimicking phantoms with high accuracy, as confirmed with proton beam measurements. This method also revealed significant SPR differences compared to stoichiometric kVCT-only calculation in a clinical case, with the largest differences in bone. These findings support that including MRI in proton therapy treatment planning can improve the accuracy of calculated SPR values and reduce range uncertainties.
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Affiliation(s)
- Raanan Marants
- Department of Radiation Oncology, Dana-Farber Cancer Institute, Brigham and Women’s Hospital, and Harvard Medical School, Boston, Massachusetts, United States of America
| | - Sebastian Tattenberg
- Department of Medical Physics, Faculty of Physics, Ludwig-Maximilians-Universität München, Garching, Germany
- Division of Radiation Biophysics, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, United States of America
| | - Jessica Scholey
- Department of Radiation Oncology, University of California, San Francisco, San Francisco, California, United States of America
| | - Evangelia Kaza
- Department of Radiation Oncology, Dana-Farber Cancer Institute, Brigham and Women’s Hospital, and Harvard Medical School, Boston, Massachusetts, United States of America
| | - Xin Miao
- Siemens Medical Solutions USA Inc., Boston, Massachusetts, United States of America
| | | | - Olivia Magneson
- Department of Radiation Oncology, Dana-Farber Cancer Institute, Brigham and Women’s Hospital, and Harvard Medical School, Boston, Massachusetts, United States of America
| | - Jade Fischer
- Department of Radiation Oncology, Dana-Farber Cancer Institute, Brigham and Women’s Hospital, and Harvard Medical School, Boston, Massachusetts, United States of America
- Department of Medical Physics, University of Calgary, Calgary, Alberta, Canada
| | - Luciano Vinas
- Department of Radiation Oncology, Dana-Farber Cancer Institute, Brigham and Women’s Hospital, and Harvard Medical School, Boston, Massachusetts, United States of America
- Department of Statistics, University of California, Los Angeles, Los Angeles, California, United States of America
| | - Katharina Niepel
- Department of Medical Physics, Faculty of Physics, Ludwig-Maximilians-Universität München, Garching, Germany
| | - Thomas Bortfeld
- Division of Radiation Biophysics, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, United States of America
| | - Guillaume Landry
- Department of Radiation Oncology, University Hospital, Ludwig-Maximilians-Universität München, Munich, Germany
- German Cancer Consortium (DKTK), Partner Site Munich, Munich, Germany
| | - Katia Parodi
- Department of Medical Physics, Faculty of Physics, Ludwig-Maximilians-Universität München, Garching, Germany
- German Cancer Consortium (DKTK), Partner Site Munich, Munich, Germany
| | - Joost Verburg
- Division of Radiation Biophysics, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, United States of America
| | - Atchar Sudhyadhom
- Department of Radiation Oncology, Dana-Farber Cancer Institute, Brigham and Women’s Hospital, and Harvard Medical School, Boston, Massachusetts, United States of America
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16
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Hu W, Ma J, Zhang H, Miu X, Miao X, Deng Y. Integrated lipidomic and transcriptomic analysis reveals diacylglycerol accumulation in olive of Longnan (China). PeerJ 2023; 11:e15724. [PMID: 37583911 PMCID: PMC10424668 DOI: 10.7717/peerj.15724] [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: 03/15/2023] [Accepted: 06/18/2023] [Indexed: 08/17/2023] Open
Abstract
Background Olive (Olea europaea L.) oil accumulate more diacylglycerols (DAG) than mostly vegetable oils. Unsaturated fatty acids-enriched DAG consumption enhanced wellness in subjects. However, the mechanism of DAG accumulation is not yet fully understood. Methods In this study, gene network of DAG accumulation and fatty acid composition in the two olive mesocarps ("Chenggu 32" (CG) and "Koroneiki" (QJ)) were investigated by integrating lipidome and transcriptome techniques. Results A total of 1,408 lipid molecules were identified by lipidomic analysis in olive mesocarp, of which DAG (DAG36:3, DAG36:4 and DAG36:5) showed higher content, and triacylglycerols (TAG54:3, TAG54:4) exhibited opposite trend in CG. Specifically, DAG was rich in polyunsaturated fatty acids (especially C18:2) at the sn-2 position, which was inconsistent with TAG at the same positions (Primarily C18:1). Transcriptomic analysis revealed that phospholipase C (NPC, EC 3.1.4.3) were up-regulated relative to QJ, whereas diacylglycerol kinase (ATP) (DGK, EC 2.7.1.107), diacylglycerol acyltransferase (DGAT, EC 2.3.1.20), and phospholipid: diacylglycerol acyltransferase (PDAT, EC 2.3.1.158) were down-regulated. Conclusion We speculated that the non-acyl coenzyme A pathway played a significant role in DAG biosynthesis. Additionally, fatty acyl-ACP thioesterase B (FATB, EC 3.1.2.14), stearoyl [acyl-carrier-protein] 9-desaturase (SAD, EC 1.14.19.2) and omega-6 fatty acid desaturase (FAD2, EC 1.14.19.6) were highly expressed in CG and may be involved in regulating fatty acid composition. Meanwhile, phospholipase A1 (LCAT, EC 3.1.1.32) involved in the acyl editing reaction facilitated PUFA linkage at the sn-2 position of DAG. Our findings provide novel insights to increase the DAG content, improve the fatty acid composition of olive oil, and identify candidate genes for the production of DAG-rich oils.
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Affiliation(s)
- Wei Hu
- College of Life Science, Northwest Normal University, Lanzhou, Gansu, China
| | - Junyi Ma
- College of Life Science, Northwest Normal University, Lanzhou, Gansu, China
| | - Hongjie Zhang
- College of Life Science, Northwest Normal University, Lanzhou, Gansu, China
| | - Xin Miu
- College of Life Science, Northwest Normal University, Lanzhou, Gansu, China
| | - Xin Miao
- College of Life Science, Northwest Normal University, Lanzhou, Gansu, China
| | - Yu Deng
- Institute of Olive, Longnan Academy of Economic Forestry, Wudu, Gansu, China
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Ji A, Wang Y, Miao X, Fan T, Ru B, Liu L, Nie R, Qiu S. Dataglove for Sign Language Recognition of People with Hearing and Speech Impairment via Wearable Inertial Sensors. Sensors (Basel) 2023; 23:6693. [PMID: 37571476 PMCID: PMC10422613 DOI: 10.3390/s23156693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 07/15/2023] [Accepted: 07/21/2023] [Indexed: 08/13/2023]
Abstract
Finding ways to enable seamless communication between deaf and able-bodied individuals has been a challenging and pressing issue. This paper proposes a solution to this problem by designing a low-cost data glove that utilizes multiple inertial sensors with the purpose of achieving efficient and accurate sign language recognition. In this study, four machine learning models-decision tree (DT), support vector machine (SVM), K-nearest neighbor method (KNN), and random forest (RF)-were employed to recognize 20 different types of dynamic sign language data used by deaf individuals. Additionally, a proposed attention-based mechanism of long and short-term memory neural networks (Attention-BiLSTM) was utilized in the process. Furthermore, this study verifies the impact of the number and position of data glove nodes on the accuracy of recognizing complex dynamic sign language. Finally, the proposed method is compared with existing state-of-the-art algorithms using nine public datasets. The results indicate that both the Attention-BiLSTM and RF algorithms have the highest performance in recognizing the twenty dynamic sign language gestures, with an accuracy of 98.85% and 97.58%, respectively. This provides evidence for the feasibility of our proposed data glove and recognition methods. This study may serve as a valuable reference for the development of wearable sign language recognition devices and promote easier communication between deaf and able-bodied individuals.
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Affiliation(s)
- Ang Ji
- Asset Management Department, Ketai Lexun (Beijing) Communication Equipment Co., Ltd., Beijing 101111, China;
| | - Yongzhen Wang
- Scientific and Technological Innovation Center, Beijing 100012, China;
| | - Xin Miao
- Key Laboratory of Intelligent Control and Optimization for Industrial Equipment of Ministry of Education, Dalian University of Technology, Dalian 116024, China; (X.M.); (T.F.); (B.R.); (L.L.); (R.N.)
| | - Tianqi Fan
- Key Laboratory of Intelligent Control and Optimization for Industrial Equipment of Ministry of Education, Dalian University of Technology, Dalian 116024, China; (X.M.); (T.F.); (B.R.); (L.L.); (R.N.)
| | - Bo Ru
- Key Laboratory of Intelligent Control and Optimization for Industrial Equipment of Ministry of Education, Dalian University of Technology, Dalian 116024, China; (X.M.); (T.F.); (B.R.); (L.L.); (R.N.)
| | - Long Liu
- Key Laboratory of Intelligent Control and Optimization for Industrial Equipment of Ministry of Education, Dalian University of Technology, Dalian 116024, China; (X.M.); (T.F.); (B.R.); (L.L.); (R.N.)
| | - Ruicheng Nie
- Key Laboratory of Intelligent Control and Optimization for Industrial Equipment of Ministry of Education, Dalian University of Technology, Dalian 116024, China; (X.M.); (T.F.); (B.R.); (L.L.); (R.N.)
| | - Sen Qiu
- Key Laboratory of Intelligent Control and Optimization for Industrial Equipment of Ministry of Education, Dalian University of Technology, Dalian 116024, China; (X.M.); (T.F.); (B.R.); (L.L.); (R.N.)
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18
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Wan Z, Wang B, Yao J, Li Q, Miao X, Jian Y, Huang S, Lai S, Li C, Tian W. Predictive factors and clinicopathological characteristics of outcome in poorly differentiated thyroid carcinoma: a single-institution study. Front Oncol 2023; 13:1102936. [PMID: 37483485 PMCID: PMC10361777 DOI: 10.3389/fonc.2023.1102936] [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: 11/19/2022] [Accepted: 06/19/2023] [Indexed: 07/25/2023] Open
Abstract
Objective To elucidate the clinicopathological characteristics and prognostic factors of poorly differentiated thyroid carcinoma. Method A total of 24912 thyroid carcinoma patients admitted to the First Medical Center of Chinese People's Liberation Army General Hospital from 2005 to 2020 were retrospectively reviewed. A total of 94 patients (39 males and 55 females, a male-female ratio of 1:1.4) fulfilled the selection criteria. Of these, 73 patients had undergone surgery. The clinical and pathological data were collected from each enrolled patient. Univariate and multivariate Cox regression analyses were performed to determine independent prognostic factors. All analyses were performed with the SPSS version 26.0 and R version 1.2.5033 in the R Studio environment. Results The specimens included 20 cases of poorly differentiated thyroid carcinoma complicated with papillary thyroid carcinoma, 17 cases complicated with follicular thyroid carcinoma, 34 cases complicated with other pathological types and 23 with a separate entity. The patient demonstrated a large age span, median age was 57 years (range 8-85 years, average 55.20 ± 15.74 years). The survival time of the 94 cases was calculated, and the mean Overall survival time was 33 (range, 1-170) months, and the mean Recurrence-free survival time was 14 (range, 1-90) months. Recurrence-free mortality is related to the age at diagnosis, extrathyroidal extension and Associated thyroid cancer (p<0.05). In contrast, overall mortality is related to the age at diagnosis, sex, extrathyroidal extension, T stage (AJCC 8th), surgery and radiation (p<0.05). Conclusion Middle-aged and elderly patients are still at high risk for poorly differentiated thyroid carcinoma. The pathologic results of poorly differentiated thyroid carcinoma are varied, and reasonable treatment has an important impact on the prognosis of poorly differentiated thyroid carcinoma.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Chen Li
- *Correspondence: Wen Tian, ; Chen Li,
| | - Wen Tian
- *Correspondence: Wen Tian, ; Chen Li,
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19
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Leu JH, Miao X, Shalayda K, Coe KJ, Kahnt A, Wu B, Schnarr M, Franks C, Devlin J, Yang TY, Palmer JA, Zhang M, Zhou H, Van Damme W, Smets S, Aguilar Z, Chaplan SR. A Phase 1 First-in-Human Pharmacokinetic and Pharmacodynamic Study of JNJ-64264681, a Covalent Inhibitor of Bruton's Tyrosine Kinase. Clin Pharmacol Drug Dev 2023; 12:611-624. [PMID: 37125450 DOI: 10.1002/cpdd.1253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Accepted: 03/06/2023] [Indexed: 05/02/2023]
Abstract
JNJ-64264681 is an irreversible covalent inhibitor of Bruton's tyrosine kinase. This phase 1, first-in-human, 2-part (single-ascending dose [SAD]; multiple-ascending dose [MAD]) study evaluated the safety, tolerability, pharmacokinetics (PK), and pharmacodynamics (PD; Bruton's tyrosine kinase occupancy [BTKO]) of JNJ-64264681 oral solution in healthy participants. For SAD (N = 78), 6 increasing doses of JNJ-64264681 (4-400 mg) or placebo were evaluated in fasted males. The effects of sex, food, and a capsule formulation were evaluated in separate cohorts. For MAD (N = 27), sequential cohorts of male and female participants received 36/100/200 mg JNJ-64264681 once daily for 10 days. JNJ-64264681 exposure (peak concentration; area under the concentration-time curve) was less than dose proportional from 4 mg to 36 mg. Dose-normalized area under the concentration-time curves following the 36 mg and 100 mg doses were generally similar. The mean terminal half-life was 1.6-13.2 hours. With multiple doses, steady state was achieved by day 2. A semimechanistic PK/PD model was developed using the first 5 SAD cohorts' data to predict %BTKO in MAD cohorts. PK/PD model guided dose-escalation, and all participants in the 200/400 mg single-dose cohorts achieved ≥90% BTKO at 4 hours after dosing (peak) with prolonged occupancy. As BTKO data became available from MAD cohorts, it was found that observed BTKO data were consistent with model predictions. JNJ-64264681 showed no safety signals of concern. Overall, safety, tolerability, PK, BTKO, and PK/PD modeling guided the rationale for dose selection for the subsequent first-in-patient lymphoma studies.
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Affiliation(s)
- Jocelyn H Leu
- Janssen Research & Development, LLC, Spring House, Pennsylvania, USA
| | - Xin Miao
- Janssen Research & Development, LLC, Spring House, Pennsylvania, USA
| | - Kevin Shalayda
- Janssen Research & Development, LLC, Raritan, New Jersey, USA
| | - Kevin J Coe
- Janssen Research & Development, LLC, San Diego, California, USA
| | | | - Bonnie Wu
- Janssen Research & Development, LLC, Spring House, Pennsylvania, USA
| | - Megan Schnarr
- Janssen Research & Development, LLC, Spring House, Pennsylvania, USA
| | - Carol Franks
- Janssen Research & Development, LLC, Spring House, Pennsylvania, USA
| | - James Devlin
- Janssen Research & Development, LLC, Spring House, Pennsylvania, USA
| | - Tong-Yuan Yang
- Janssen Research & Development, LLC, Spring House, Pennsylvania, USA
| | - James A Palmer
- Janssen Research & Development, LLC, San Diego, California, USA
| | - Mai Zhang
- Janssen Research & Development, LLC, San Diego, California, USA
| | - Honghui Zhou
- Janssen Research & Development, LLC, Spring House, Pennsylvania, USA
- Present affiliation: Kira Pharmaceuticals, Cambridge, Massachusetts, USA
| | - Wim Van Damme
- Clinical Pharmacology Unit, Janssen Research & Development, Merksem, Belgium
| | - Sophie Smets
- Clinical Pharmacology Unit, Janssen Research & Development, Merksem, Belgium
| | - Zuleima Aguilar
- Janssen Research & Development, LLC, San Diego, California, USA
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Miao X, Zhang L, Zhou P, Zhang Z, Yu R, Liu X, Lv J, Wang Y, Guo H, Pan L, Liu X. Recombinant human adenovirus type 5 based vaccine candidates against GIIa- and GIIb-genotype porcine epidemic diarrhea virus induce robust humoral and cellular response in mice. Virology 2023; 584:9-23. [PMID: 37201320 DOI: 10.1016/j.virol.2023.05.001] [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: 01/31/2023] [Revised: 04/24/2023] [Accepted: 05/01/2023] [Indexed: 05/20/2023]
Abstract
Porcine epidemic diarrhea virus (PEDV) is a porcine enteropathogenic coronavirus causing severe watery diarrhea, vomiting, dehydration, and death in piglets. However, most commercial vaccines are developed based on the GI genotype strains, and have poor immune protection against the currently dominant GII genotype strains. Therefore, four novel replication-deficient human adenovirus 5-vectored vaccines expressing codon-optimized forms of the GIIa and GIIb strain spike and S1 glycoproteins were constructed, and their immunogenicity was evaluated in mice by intramuscular (IM) injection. All the recombinant adenoviruses generated robust immune responses, and the immunogenicity of recombinant adenoviruses against the GIIa strain was stronger than that of recombinant adenoviruses against the GIIb strain. Moreover, Ad-XT-tPA-Sopt-vaccinated mice elicited optimal immune effects. In contrast, mice immunized with Ad-XT-tPA-Sopt by oral gavage did not induce strong immune responses. Overall, IM administration of Ad-XT-tPA-Sopt is a promising strategy against PEDV, and this study provides useful information for developing viral vector-based vaccines.
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Affiliation(s)
- Xin Miao
- State Key Laboratory for Animal Disease Control and Prevention, Key Laboratory of Animal Virology of Ministry of Agriculture, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Liping Zhang
- State Key Laboratory for Animal Disease Control and Prevention, Key Laboratory of Animal Virology of Ministry of Agriculture, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Peng Zhou
- State Key Laboratory for Animal Disease Control and Prevention, Key Laboratory of Animal Virology of Ministry of Agriculture, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Zhongwang Zhang
- State Key Laboratory for Animal Disease Control and Prevention, Key Laboratory of Animal Virology of Ministry of Agriculture, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Ruiming Yu
- State Key Laboratory for Animal Disease Control and Prevention, Key Laboratory of Animal Virology of Ministry of Agriculture, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Xiaoqing Liu
- State Key Laboratory for Animal Disease Control and Prevention, Key Laboratory of Animal Virology of Ministry of Agriculture, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Jianliang Lv
- State Key Laboratory for Animal Disease Control and Prevention, Key Laboratory of Animal Virology of Ministry of Agriculture, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Yonglu Wang
- State Key Laboratory for Animal Disease Control and Prevention, Key Laboratory of Animal Virology of Ministry of Agriculture, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Huichen Guo
- State Key Laboratory for Animal Disease Control and Prevention, Key Laboratory of Animal Virology of Ministry of Agriculture, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Li Pan
- State Key Laboratory for Animal Disease Control and Prevention, Key Laboratory of Animal Virology of Ministry of Agriculture, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China.
| | - Xinsheng Liu
- State Key Laboratory for Animal Disease Control and Prevention, Key Laboratory of Animal Virology of Ministry of Agriculture, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China.
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Xu H, Chai CP, Miao X, Tang H, Hu JJ, Zhang H, Zhou WC. Establishment and characterization of a new human ampullary carcinoma cell line, DPC-X1. World J Gastroenterol 2023; 29:2642-2656. [PMID: 37213400 PMCID: PMC10198051 DOI: 10.3748/wjg.v29.i17.2642] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Revised: 02/17/2023] [Accepted: 04/13/2023] [Indexed: 05/23/2023] Open
Abstract
BACKGROUND An in-depth study of the pathogenesis and biological characteristics of ampullary carcinoma is necessary to identify appropriate treatment strategies. To date, only eight ampullary cancer cell lines have been reported, and a mixed-type ampullary carcinoma cell line has not yet been reported.
AIM To establish a stable mixed-type ampullary carcinoma cell line originating from Chinese.
METHODS Fresh ampullary cancer tissue samples were used for primary culture and subculture. The cell line was evaluated by cell proliferation assays, clonal formation assays, karyotype analysis, short tandem repeat (STR) analysis and transmission electron microscopy. Drug resistances against oxaliplatin, paclitaxel, gemcitabine and 5-FU were evaluated by cell counting kit-8 assay. Subcutaneous injection 1 × 106 cells to three BALB/c nude mice for xenograft studies. The hematoxylin-eosin staining was used to detect the pathological status of the cell line. The expression of biomarkers cytokeratin 7 (CK7), cytokeratin 20 (CK20), cytokeratin low molecular weight (CKL), Ki67 and carcinoembryonic antigen (CEA) were determined by immunocytochemistry assay.
RESULTS DPC-X1 was continuously cultivated for over a year and stably passaged for more than 80 generations; its population doubling time was 48 h. STR analysis demonstrated that the characteristics of DPC-X1 were highly consistent with those of the patient’s primary tumor. Furthermore, karyotype analysis revealed its abnormal sub-tetraploid karyotype. DPC-X1 could efficiently form organoids in suspension culture. Under the transmission electron microscope, microvilli and pseudopods were observed on the cell surface, and desmosomes were visible between the cells. DPC-X1 cells inoculated into BALB/C nude mice quickly formed transplanted tumors, with a tumor formation rate of 100%. Their pathological characteristics were similar to those of the primary tumor. Moreover, DPC-X1 was sensitive to oxaliplatin and paclitaxel and resistant to gemcitabine and 5-FU. Immunohistochemistry showed that the DPC-X1 cells were strongly positive for CK7, CK20, and CKL; the Ki67 was 50%, and CEA was focally expressed.
CONCLUSION Here, we have constructed a mixed-type ampullary carcinoma cell line that can be used as an effective model for studying the pathogenesis of ampullary carcinoma and drug development.
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Affiliation(s)
- Hao Xu
- The Forth Department of General Surgery, The First Hospital of Lanzhou University, Lanzhou 730000, Gansu Province, China
| | - Chang-Peng Chai
- The Forth Department of General Surgery, The First Hospital of Lanzhou University, Lanzhou 730000, Gansu Province, China
| | - Xin Miao
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Animal Virology of the Ministry of Agriculture, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730000, Gansu Province, China
| | - Huan Tang
- The Second Clinical Medical College, Lanzhou University, Lanzhou 730000, Gansu Province, China
| | - Jin-Jing Hu
- The Forth Department of General Surgery, The First Hospital of Lanzhou University, Lanzhou 730000, Gansu Province, China
| | - Hui Zhang
- Department of General Surgery, The Second Hospital of Lanzhou University, Lanzhou 730000, Gansu Province, China
| | - Wen-Ce Zhou
- The Second Clinical Medical College, Lanzhou University, Lanzhou 730000, Gansu Province, China
- Department of General Surgery, The Second Hospital of Lanzhou University, Lanzhou 730000, Gansu Province, China
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Li Y, Guo R, Wang Y, Ma J, Miao X, Yang J, Zhang Z, Wu X, Ren T, Jiang D. Shoe-Integrated Sensor System for Diagnosis of the Concomitant Syndesmotic Injury in Chronic Lateral Ankle Instability: A Prospective Double-Blind Diagnostic Test. Nanomaterials (Basel) 2023; 13:nano13091539. [PMID: 37177084 PMCID: PMC10180214 DOI: 10.3390/nano13091539] [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] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 03/19/2023] [Accepted: 03/27/2023] [Indexed: 05/15/2023]
Abstract
Chronic lateral ankle instability (CLAI) is commonly secondary to prior lateral ankle ligament injury, and the concomitant latent syndesmosis injury would prolong recovery time and increase the risk of substantial traumatic arthritis. However, differentiating syndesmotic injury from isolated lateral ankle ligament injury in CLAI cases is difficult by conventional physical and radiological examinations. To improve the accuracy of syndesmotic injury diagnosis, a shoe-integrated sensor system (SISS) is proposed. This system measures plantar pressure during walking to detect the presence of syndesmotic injury. The study included 27 participants who had ankle sprains and underwent an examination. Plantar pressure in eight regions of interest was measured for both limbs, and syndesmotic injuries were examined using arthroscopy. The width of the syndesmosis was measured to evaluate its severity. The characteristics of plantar pressure were compared between patients with normal and injured syndesmosis. The results indicated that peak plantar pressure ratios with logistic regression predicted value > 0.51 accurately distinguished concomitant syndesmotic injury during walking, with high sensitivity (80%) and specificity (75%). The post-test probability of having a syndesmotic injury was positively 80% and negatively 25%. These findings demonstrate the effectiveness of cost-effective wearable sensors in objectively diagnosing concomitant syndesmotic injuries in cases of CLAI.
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Affiliation(s)
- Yanzhang Li
- Department of Sports Medicine, Peking University Third Hospital, Institute of Sports Medicine of Peking University, Beijing 100191, China
- Beijing Key Laboratory of Sports Injuries, Beijing 100191, China
- Engineering Research Center of Sports Trauma Treatment Technology and Devices, Ministry of Education, Beijing 100191, China
| | - Rui Guo
- Beijing National Research Center for Information Science and Technology (BNRist), School of Integrated Circuits, Tsinghua University, Beijing 100084, China
- Tsingyan Micro Technology Co., Ltd., Shaoxing 312099, China
| | - Yuchen Wang
- Beijing National Research Center for Information Science and Technology (BNRist), School of Integrated Circuits, Tsinghua University, Beijing 100084, China
| | - Jingzhong Ma
- Beijing National Research Center for Information Science and Technology (BNRist), School of Integrated Circuits, Tsinghua University, Beijing 100084, China
| | - Xin Miao
- Department of Sports Medicine, Peking University Third Hospital, Institute of Sports Medicine of Peking University, Beijing 100191, China
- Beijing Key Laboratory of Sports Injuries, Beijing 100191, China
- Engineering Research Center of Sports Trauma Treatment Technology and Devices, Ministry of Education, Beijing 100191, China
| | - Jie Yang
- Department of Sports Medicine, Peking University Third Hospital, Institute of Sports Medicine of Peking University, Beijing 100191, China
- Beijing Key Laboratory of Sports Injuries, Beijing 100191, China
- Engineering Research Center of Sports Trauma Treatment Technology and Devices, Ministry of Education, Beijing 100191, China
| | - Zhu Zhang
- Department of Sports Medicine, Peking University Third Hospital, Institute of Sports Medicine of Peking University, Beijing 100191, China
- Beijing Key Laboratory of Sports Injuries, Beijing 100191, China
- Engineering Research Center of Sports Trauma Treatment Technology and Devices, Ministry of Education, Beijing 100191, China
| | - Xiaoming Wu
- Beijing National Research Center for Information Science and Technology (BNRist), School of Integrated Circuits, Tsinghua University, Beijing 100084, China
| | - Tianling Ren
- Beijing National Research Center for Information Science and Technology (BNRist), School of Integrated Circuits, Tsinghua University, Beijing 100084, China
| | - Dong Jiang
- Department of Sports Medicine, Peking University Third Hospital, Institute of Sports Medicine of Peking University, Beijing 100191, China
- Beijing Key Laboratory of Sports Injuries, Beijing 100191, China
- Engineering Research Center of Sports Trauma Treatment Technology and Devices, Ministry of Education, Beijing 100191, China
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Zhu X, Liu T, He A, Zhang L, Li J, Li T, Miao X, You M, You S. Diversity of Wolbachia infection and its influence on mitochondrial DNA variation in the diamondback moth, Plutella xylostella. Mol Phylogenet Evol 2023; 182:107751. [PMID: 36889655 DOI: 10.1016/j.ympev.2023.107751] [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: 05/17/2022] [Revised: 01/11/2023] [Accepted: 03/02/2023] [Indexed: 03/08/2023]
Abstract
Plutella xylostella is a pest that severely damages cruciferous vegetables worldwide and has been shown to be infected with the maternally inherited bacteria Wolbachia, with the main infected strain was plutWB1. In this study, we performed a large-scale global sampling of P. xylostella and amplified 3 mtDNA genes of P. xylostella and 6 Wolbachia genes to analyze the infection status, diversity of Wolbachia in P. xylostella, and its effect on mtDNA variation in P. xylostella. This study provides a conservative estimate of Wolbachia infection rates in P. xylostella, which was found to be 7% (104/1440). The ST 108 (plutWB1) was shared among butterfly species and the moth species P. xylostella, revealing that Wolbachia strain plutWB1 acquisition in P. xylostella may be through horizontal transmission. The Parafit analyses indicated a significant association between Wolbachia and Wolbachia-infected P. xylostella individuals, and individuals infected with plutWB1 tended to cluster in the basal positions of the phylogenetic tree based on the mtDNA data. Additionally, Wolbachia infections were associated with increased mtDNA polymorphism in the infected P. xylostella population. These data suggest that Wolbachia endosymbionts may have a potential effect on mtDNA variation of P. xylostella.
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Affiliation(s)
- Xiangyu Zhu
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Institute of Applied Ecology, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Joint International Research Laboratory of Ecological Pest Control, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Ministerial and Provincial Joint Innovation Centre for Safety Production of Cross-Strait Crops, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Tiansheng Liu
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Institute of Applied Ecology, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Joint International Research Laboratory of Ecological Pest Control, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Ministerial and Provincial Joint Innovation Centre for Safety Production of Cross-Strait Crops, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Institution of Fruit Tree Research, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
| | - Ao He
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Institute of Applied Ecology, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Joint International Research Laboratory of Ecological Pest Control, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Ministerial and Provincial Joint Innovation Centre for Safety Production of Cross-Strait Crops, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Ling Zhang
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Institute of Applied Ecology, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Joint International Research Laboratory of Ecological Pest Control, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Ministerial and Provincial Joint Innovation Centre for Safety Production of Cross-Strait Crops, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Jinyang Li
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Institute of Applied Ecology, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Joint International Research Laboratory of Ecological Pest Control, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Ministerial and Provincial Joint Innovation Centre for Safety Production of Cross-Strait Crops, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Tianpu Li
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Institute of Applied Ecology, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Joint International Research Laboratory of Ecological Pest Control, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Ministerial and Provincial Joint Innovation Centre for Safety Production of Cross-Strait Crops, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Xin Miao
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Institute of Applied Ecology, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Joint International Research Laboratory of Ecological Pest Control, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Ministerial and Provincial Joint Innovation Centre for Safety Production of Cross-Strait Crops, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Minsheng You
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Institute of Applied Ecology, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Joint International Research Laboratory of Ecological Pest Control, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Ministerial and Provincial Joint Innovation Centre for Safety Production of Cross-Strait Crops, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Shijun You
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Institute of Applied Ecology, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Joint International Research Laboratory of Ecological Pest Control, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Ministerial and Provincial Joint Innovation Centre for Safety Production of Cross-Strait Crops, Fujian Agriculture and Forestry University, Fuzhou 350002, China; BGI-Sanya, Sanya 572025, China.
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Wang H, Ru B, Miao X, Gao Q, Habib M, Liu L, Qiu S. MEMS Devices-Based Hand Gesture Recognition via Wearable Computing. Micromachines (Basel) 2023; 14:mi14050947. [PMID: 37241571 DOI: 10.3390/mi14050947] [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] [Received: 03/06/2023] [Revised: 04/19/2023] [Accepted: 04/24/2023] [Indexed: 05/28/2023]
Abstract
Gesture recognition has found widespread applications in various fields, such as virtual reality, medical diagnosis, and robot interaction. The existing mainstream gesture-recognition methods are primarily divided into two categories: inertial-sensor-based and camera-vision-based methods. However, optical detection still has limitations such as reflection and occlusion. In this paper, we investigate static and dynamic gesture-recognition methods based on miniature inertial sensors. Hand-gesture data are obtained through a data glove and preprocessed using Butterworth low-pass filtering and normalization algorithms. Magnetometer correction is performed using ellipsoidal fitting methods. An auxiliary segmentation algorithm is employed to segment the gesture data, and a gesture dataset is constructed. For static gesture recognition, we focus on four machine learning algorithms, namely support vector machine (SVM), backpropagation neural network (BP), decision tree (DT), and random forest (RF). We evaluate the model prediction performance through cross-validation comparison. For dynamic gesture recognition, we investigate the recognition of 10 dynamic gestures using Hidden Markov Models (HMM) and Attention-Biased Mechanisms for Bidirectional Long- and Short-Term Memory Neural Network Models (Attention-BiLSTM). We analyze the differences in accuracy for complex dynamic gesture recognition with different feature datasets and compare them with the prediction results of the traditional long- and short-term memory neural network model (LSTM). Experimental results demonstrate that the random forest algorithm achieves the highest recognition accuracy and shortest recognition time for static gestures. Moreover, the addition of the attention mechanism significantly improves the recognition accuracy of the LSTM model for dynamic gestures, with a prediction accuracy of 98.3%, based on the original six-axis dataset.
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Affiliation(s)
- Huihui Wang
- School of Intelligence and Electronic Engineering, Dalian Neusoft University of Information, Dalian 116023, China
| | - Bo Ru
- Key Laboratory of Intelligent Control and Optimization for Industrial Equipment of Ministry of Education, Dalian University of Technology, Dalian 116024, China
| | - Xin Miao
- Key Laboratory of Intelligent Control and Optimization for Industrial Equipment of Ministry of Education, Dalian University of Technology, Dalian 116024, China
| | - Qin Gao
- College of Aeronautical Engineering, Taizhou University, Taizhou 318000, China
| | - Masood Habib
- Key Laboratory of Intelligent Control and Optimization for Industrial Equipment of Ministry of Education, Dalian University of Technology, Dalian 116024, China
| | - Long Liu
- School of Intelligence and Electronic Engineering, Dalian Neusoft University of Information, Dalian 116023, China
- Key Laboratory of Intelligent Control and Optimization for Industrial Equipment of Ministry of Education, Dalian University of Technology, Dalian 116024, China
| | - Sen Qiu
- Key Laboratory of Intelligent Control and Optimization for Industrial Equipment of Ministry of Education, Dalian University of Technology, Dalian 116024, China
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Xu H, Luo W, Zhao Z, Miao X, Chai C, Hu J, Tang H, Zhang H, Zhou W. Establishment and characterization of a new intrahepatic cholangiocarcinoma cell line, ICC-X3. Hum Cell 2023; 36:854-865. [PMID: 36662372 DOI: 10.1007/s13577-023-00858-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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Accepted: 01/14/2023] [Indexed: 01/21/2023]
Abstract
Intrahepatic cholangiocarcinoma (ICC) is an aggressive cancer of the biliary tract that is prone to recurrence and metastasis and is characterized by poor sensitivity to chemotherapy and overall prognosis. To address this challenge, the establishment of suitable preclinical models is critical. In this study, we successfully established a new ICC cell line, named ICC-X3, from the satellite lesions of one ICC patient. The cell line was characterized with respect to phenotypic, molecular, biomarker, functional and histological properties. STR confirmed that ICC-X3 was highly consistent with primary tumor tissue. ICC-X3 cells positively expressed CK7, CK19, E-cadherin, vimentin, and Ki67. ICC-X3 was all resistant to gemcitabine, paclitaxel, 5-FU, and oxaliplatin. The cell line was able to rapidly form xenograft tumors which were highly similar to the primary tumor. The missense mutation of TP53 exon was detected in ICC-X3 cells. ICC-X3 can be used as a good experimental model to study the progression, metastasis, and drug resistance of ICC.
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Affiliation(s)
- Hao Xu
- The Forth Department of General Surgery, the First Hospital of Lanzhou University, No. 1, Donggang West Road, LanZhou, 730000, Gansu, China.
| | - Wei Luo
- The Forth Department of General Surgery, the First Hospital of Lanzhou University, No. 1, Donggang West Road, LanZhou, 730000, Gansu, China
| | - Zhenjie Zhao
- The Forth Department of General Surgery, the First Hospital of Lanzhou University, No. 1, Donggang West Road, LanZhou, 730000, Gansu, China
| | - Xin Miao
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Animal Virology of the Ministry of Agriculture, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, LanZhou, 730000, China
| | - Changpeng Chai
- The Forth Department of General Surgery, the First Hospital of Lanzhou University, No. 1, Donggang West Road, LanZhou, 730000, Gansu, China
| | - Jinjing Hu
- The Forth Department of General Surgery, the First Hospital of Lanzhou University, No. 1, Donggang West Road, LanZhou, 730000, Gansu, China
| | - Huan Tang
- The Second Clinical Medical College, Lanzhou University, Lanzhou, 730000, China
| | - Hui Zhang
- Department of General Surgery, the Second Hospital of Lanzhou University, Lanzhou, 730000, China.
| | - Wence Zhou
- The Second Clinical Medical College, Lanzhou University, Lanzhou, 730000, China.
- Department of General Surgery, the Second Hospital of Lanzhou University, Lanzhou, 730000, China.
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Shi Y, Wang L, Miao X, Cao Z, Zhang Y, Cheng L, Yang J. In situ synthesis of donut-like Fe-doped-BiOCl@Fe-MOF composites using for excellent performance photodegradation of dyes and tetracycline. J Photochem Photobiol A Chem 2023. [DOI: 10.1016/j.jphotochem.2023.114704] [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: 03/29/2023]
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Ao M, Ren S, Yu Y, Huang H, Miao X, Ao Y, Wang W. The effects of blurred visual inputs with different levels on the cerebral activity during free level walking. Front Neurosci 2023; 17:1151799. [PMID: 37139527 PMCID: PMC10149992 DOI: 10.3389/fnins.2023.1151799] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Accepted: 03/20/2023] [Indexed: 05/05/2023] Open
Abstract
Objective The aim of this study was to evaluate the effects of blurred vision on electrocortical activities at different levels during walking. Materials and methods A total of 22 healthy volunteers (all men; mean age: 24.4 ± 3.9 years) underwent an electroencephalography (EEG) test synchronous with free level walking. Visual status was simulated by goggles covered by the occlusion foil targeted at a Snellen visual acuity of 20/60 (V0.3), 20/200 (V0.1), and light perception (V0). At each of these conditions, the participants completed barefoot walking for five blocks of 10 m. The EEG signals were recorded by a wireless EEG system with electrodes of interest, namely, Cz, Pz, Oz, O1, and O2. The gait performances were assessed by the Vicon system. Results During walking with normal vision (V1.0), there were cerebral activities related to visual processing, characterized as higher spectral power of delta (Oz and O2 vs. Cz, Pz, and O1, p ≤ 0.033) and theta (Oz vs. Cz and O1, p = 0.044) bands in occipital regions. Moderately blurred vision (V0.3) would attenuate the predominance of delta- and theta-band activities at Oz and O2, respectively. At the statuses of V0.1 and V0, the higher power of delta (at V0.1 and V0, Oz, and O2 vs. Cz, Pz, and O1, p ≤ 0.047) and theta bands (at V0.1, Oz vs. Cz, p = 0.010; at V0, Oz vs. Cz, Pz, and O1, p ≤ 0.016) emerged again. The cautious gait pattern, characterized by a decrease in gait speed (p < 0.001), a greater amplitude of deviation from the right ahead (p < 0.001), a prolonged stance time (p = 0.001), a restricted range of motion in the hip on the right side (p ≤ 0.010), and an increased knee flexion during stance on the left side (p = 0.014), was only detected at the status of V0. The power of the alpha band at the status of V0 was higher than that at V1.0, V0.3, and V0.1 (p ≤ 0.011). Conclusion Mildly blurred visual inputs would elicit generalization of low-frequency band activity during walking. In circumstance to no effective visual input, locomotor navigation would rely on cerebral activity related to visual working memory. The threshold to trigger the shift might be the visual status that is as blurred as the level of Snellen visual acuity of 20/200.
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Affiliation(s)
- Mingxin Ao
- Department of Ophthalmology, Peking University Third Hospital, Beijing, China
- Beijing Key Laboratory of Restoration of Damaged Ocular Nerve, Peking University Third Hospital, Beijing, China
| | - Shuang Ren
- Department of Sports Medicine, Institute of Sports Medicine of Peking University, Peking University Third Hospital, Beijing, China
- Beijing Key Laboratory of Sports Injuries, Peking University Third Hospital, Beijing, China
| | - Yuanyuan Yu
- Department of Sports Medicine, Institute of Sports Medicine of Peking University, Peking University Third Hospital, Beijing, China
- Beijing Key Laboratory of Sports Injuries, Peking University Third Hospital, Beijing, China
| | - Hongshi Huang
- Department of Sports Medicine, Institute of Sports Medicine of Peking University, Peking University Third Hospital, Beijing, China
- Beijing Key Laboratory of Sports Injuries, Peking University Third Hospital, Beijing, China
| | - Xin Miao
- Department of Sports Medicine, Institute of Sports Medicine of Peking University, Peking University Third Hospital, Beijing, China
- Beijing Key Laboratory of Sports Injuries, Peking University Third Hospital, Beijing, China
| | - Yingfang Ao
- Department of Sports Medicine, Institute of Sports Medicine of Peking University, Peking University Third Hospital, Beijing, China
- Beijing Key Laboratory of Sports Injuries, Peking University Third Hospital, Beijing, China
- *Correspondence: Yingfang Ao
| | - Wei Wang
- Department of Ophthalmology, Peking University Third Hospital, Beijing, China
- Beijing Key Laboratory of Restoration of Damaged Ocular Nerve, Peking University Third Hospital, Beijing, China
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Lin L, Li S, Hu S, Yu W, Jiang B, Mao C, Li G, Yang R, Miao X, Jin M, Gu Y, Lu E. UCHL1 Impairs Periodontal Ligament Stem Cell Osteogenesis in Periodontitis. J Dent Res 2023; 102:61-71. [PMID: 36112902 DOI: 10.1177/00220345221116031] [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] [Indexed: 11/15/2022] Open
Abstract
Periodontitis comprises a series of inflammatory responses resulting in alveolar bone loss. The suppression of osteogenesis of periodontal ligament stem cells (PDLSCs) by inflammation is responsible for impaired alveolar bone regeneration, which remains an ongoing challenge for periodontitis therapy. Ubiquitin C-terminal hydrolase L1 (UCHL1) belongs to the family of deubiquitinating enzymes, which was found to play roles in inflammation previously. In this study, the upregulation of UCHL1 was identified in inflamed PDLSCs isolated from periodontitis patients and in healthy PDLSCs treated with tumor necrosis factor-α or interleukin-1β, and the higher expression level of UCHL1 was accompanied with the impaired osteogenesis of PDLSCs. Then UCHL1 was inhibited in PDLSCs using the lentivirus or inhibitor, and the osteogenesis of PDLSCs suppressed by inflammation was rescued by UCHL1 inhibition. Mechanistically, the negative effect of UCHL1 on the osteogenesis of PDLSCs was attributable to its negative regulation of mitophagy-dependent bone morphogenetic protein 2/Smad signaling pathway in periodontitis-associated inflammation. Furthermore, a ligature-induced murine periodontitis model was established, and the specific inhibitor of UCHL1 was administrated to periodontitis mice. The histological results showed increased active osteoblasts on alveolar bone surface and enhanced alveolar bone regeneration when UCHL1 was inhibited in periodontitis mice. Besides, the therapeutic effects of UCHL1 inhibition on ameliorating periodontitis were verified, as indicated by less bone loss and reduced inflammation. Altogether, our study proved UCHL1 to be a key negative regulator of the osteogenesis of PDLSCs in periodontitis and suggested that UCHL1 inhibition holds promise for alveolar bone regeneration in periodontitis treatment.
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Affiliation(s)
- L Lin
- Department of Stomatology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - S Li
- Department of Stomatology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - S Hu
- Department of Stomatology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - W Yu
- Department of Stomatology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - B Jiang
- Department of Stomatology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - C Mao
- Department of Stomatology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - G Li
- Department of Stomatology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - R Yang
- Department of Stomatology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - X Miao
- Key Laboratory of Tissue Microenvironment and Tumor, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - M Jin
- Department of Stomatology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Y Gu
- Department of Stomatology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Key Laboratory of Tissue Microenvironment and Tumor, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - E Lu
- Department of Stomatology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Xu H, Miao X, Chai C, Tang H, Hu J, Zhao Z, Luo W, Zhu K, Zhou W. Establishment and characterization of a new Chinese hepatocellular carcinoma cell line, Hep-X1. Hum Cell 2023; 36:434-445. [PMID: 36152230 DOI: 10.1007/s13577-022-00797-z] [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: 06/30/2022] [Accepted: 09/18/2022] [Indexed: 01/07/2023]
Abstract
Hepatocellular carcinoma (HCC) is a highly aggressive and heterogeneous disease. Cell lines are commonly employed as in vitro models for cell type studies. However, the success rate of HCC primary culture establishment is low. In this study, we successfully established a liver cancer cell line, Hep-X1. Primary culture and passage of surgically removed tissues were used to establish hepatoma cell lines. Morphological examination, short tandem repeat (STR) analysis, immunohistochemical staining, doubling time, karyotype analysis, plate tumor formation experiments, organoid culture, and in vivo tumor formation investigations in animals were used to identify the cell lines. A novel liver cancer cell line, Hep-X1, was established based on morphology, immunophenotype, cytogenetics, and STR analysis. The novel cell line can be a valuable model for studying primary liver cancer.
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Affiliation(s)
- Hao Xu
- The Forth Department of General Surgery, The First Hospital of Lanzhou University, No.1 Donggang West Road, Chengguan District, Lanzhou, 730000, Gansu, China.
| | - Xin Miao
- State Key Laboratory of Veterinary Etiological Biology & OIE/National Foot and Mouth Disease Reference Laboratory & Key Laboratory of Animal Virology of the Ministry of Agriculture, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, LanZhou, 730000, China
| | - Changpeng Chai
- The Forth Department of General Surgery, The First Hospital of Lanzhou University, No.1 Donggang West Road, Chengguan District, Lanzhou, 730000, Gansu, China
| | - Huan Tang
- The Forth Department of General Surgery, The First Hospital of Lanzhou University, No.1 Donggang West Road, Chengguan District, Lanzhou, 730000, Gansu, China
| | - Jinjing Hu
- The Forth Department of General Surgery, The First Hospital of Lanzhou University, No.1 Donggang West Road, Chengguan District, Lanzhou, 730000, Gansu, China
| | - Zhenjie Zhao
- The Forth Department of General Surgery, The First Hospital of Lanzhou University, No.1 Donggang West Road, Chengguan District, Lanzhou, 730000, Gansu, China
| | - Wei Luo
- The Forth Department of General Surgery, The First Hospital of Lanzhou University, No.1 Donggang West Road, Chengguan District, Lanzhou, 730000, Gansu, China
| | - Kexiang Zhu
- The Forth Department of General Surgery, The First Hospital of Lanzhou University, No.1 Donggang West Road, Chengguan District, Lanzhou, 730000, Gansu, China
| | - Wence Zhou
- Department of General Surgery, The Second Hospital of Lanzhou University, Lanzhou, 730000, China.
- The Second Clinical Medical College, Lanzhou University, Lanzhou, 730000, China.
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Miao X, Hu J, Chai C, Tang H, Zhao Z, Luo W, Zhou W, Xu H. Establishment and characterization of a new intrahepatic cholangiocarcinoma cell line derived from a Chinese patient. Cancer Cell Int 2022; 22:418. [PMID: 36578029 PMCID: PMC9795767 DOI: 10.1186/s12935-022-02840-3] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Accepted: 12/23/2022] [Indexed: 12/29/2022] Open
Abstract
Patients with intrahepatic cholangiocarcinoma (ICC) require chemotherapy due to late detection, rapid disease progression, and low surgical resection rate. Tumor cell lines are extremely important in cancer research for drug discovery and development. Here, we established and characterized a new intrahepatic cholangiocarcinoma cell line, ICC-X1. STR testing confirmed the absence of cross-contamination and high similarity to the original tissue. ICC-X1 exhibited typical epithelial morphology and formed tumor spheres in the suspension culture. The population doubling time was approximately 48 h. The cell line had a complex hypotriploid karyotype. The cell line exhibited a strong migration ability in vitro and cell inoculation into BALB/c nude mice led to the formation of xenografts. Additionally, ICC-X1 cells were sensitive to gemcitabine and paclitaxel but resistant to 5-fluorouracil and oxaliplatin. RNA sequencing revealed that the upregulated cancer-related genes were mainly enriched in several signaling pathways, including the TNF signaling pathway, NOD-like receptor signaling pathway, and NF-κB signaling pathway. The downregulated cancer-related genes were mainly enriched in the Rap1 signaling pathway and Hippo signaling pathway among other pathways. In conclusion, we have created a new ICC cell line derived from Chinese patients. This cell line can be used as a preclinical model to study ICC, specifically tumor metastasis and drug resistance mechanisms.
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Affiliation(s)
- Xin Miao
- grid.410727.70000 0001 0526 1937State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Animal Virology of the Ministry of Agriculture, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, 730000 China
| | - Jinjing Hu
- grid.412643.60000 0004 1757 2902The Forth Department of General Surgery, The First Hospital of Lanzhou University, No. 1, Donggang West Road, Lanzhou, 730000 Gansu China
| | - Changpeng Chai
- grid.412643.60000 0004 1757 2902The Forth Department of General Surgery, The First Hospital of Lanzhou University, No. 1, Donggang West Road, Lanzhou, 730000 Gansu China
| | - Huan Tang
- grid.412643.60000 0004 1757 2902The Forth Department of General Surgery, The First Hospital of Lanzhou University, No. 1, Donggang West Road, Lanzhou, 730000 Gansu China
| | - Zhenjie Zhao
- grid.412643.60000 0004 1757 2902The Forth Department of General Surgery, The First Hospital of Lanzhou University, No. 1, Donggang West Road, Lanzhou, 730000 Gansu China
| | - Wei Luo
- grid.412643.60000 0004 1757 2902The Forth Department of General Surgery, The First Hospital of Lanzhou University, No. 1, Donggang West Road, Lanzhou, 730000 Gansu China
| | - Wence Zhou
- grid.411294.b0000 0004 1798 9345Department of General Surgery, The Second Hospital of Lanzhou University, Lanzhou, 730000 China ,grid.32566.340000 0000 8571 0482The Second Clinical Medical College, Lanzhou University, Lanzhou, 730000 China
| | - Hao Xu
- grid.412643.60000 0004 1757 2902The Forth Department of General Surgery, The First Hospital of Lanzhou University, No. 1, Donggang West Road, Lanzhou, 730000 Gansu China
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Zhang L, Miao X, Wang M, Shi A, Wang J, Ma Z, Zhang Y, Zhang J, Yu S. Development of a portable reflectance confocal microscope and its application in the noninvasive in vivo evaluation of mesenchymal stem cell-promoted cutaneous wound healing. Biodes Manuf 2022. [DOI: 10.1007/s42242-022-00223-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Thomas H, Miao X, Ferguson D, Krishnamurthy U, Feng M, Scholey J. Contrast-Enhanced 4D MRI for Internal Target Volume Generation in Treatment Planning for Liver Tumors. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.2192] [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: 11/26/2022]
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Miao X, Wang C, Chai C, Tang H, Hu J, Zhao Z, Luo W, Zhang H, Zhu K, Zhou W, Xu H. Establishment of gastric cancer organoid and its application in individualized therapy. Oncol Lett 2022; 24:447. [DOI: 10.3892/ol.2022.13567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2022] [Accepted: 09/26/2022] [Indexed: 11/06/2022] Open
Affiliation(s)
- Xin Miao
- State Key Laboratory of Veterinary Etiological Biology and Office International des Epizooties/National Foot and Mouth Disease Reference Laboratory and Key Laboratory of Animal Virology of the Ministry of Agriculture, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu 730000, P.R. China
| | - Caiming Wang
- Department of Tumour and Anorectal, Second People's Hospital of Baiyin City, Baiyin, Gansu 730900, P.R. China
| | - Changpeng Chai
- The Fourth Department of General Surgery, The First Hospital of Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Huan Tang
- The First Clinical Medical School of Lanzhou University, Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Jinjing Hu
- The Fourth Department of General Surgery, The First Hospital of Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Zhenjie Zhao
- The Fourth Department of General Surgery, The First Hospital of Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Wei Luo
- The Fourth Department of General Surgery, The First Hospital of Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Hui Zhang
- The Fourth Department of General Surgery, The First Hospital of Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Kexiang Zhu
- The Fourth Department of General Surgery, The First Hospital of Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Wence Zhou
- The Fourth Department of General Surgery, The First Hospital of Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Hao Xu
- The Fourth Department of General Surgery, The First Hospital of Lanzhou University, Lanzhou, Gansu 730000, P.R. China
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Lv W, Hu T, Jiang J, Qu T, Shen E, Duan J, Miao X, Zhang W, Qian B. Panoramic quality assessment tool for investigator initiated trials. Front Public Health 2022; 10:988574. [PMID: 36176521 PMCID: PMC9513152 DOI: 10.3389/fpubh.2022.988574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Accepted: 08/25/2022] [Indexed: 01/26/2023] Open
Abstract
Objectives Quality can be a challenge for Investigator initiated trials (IITs) since these trials are scarcely overseen by a sponsor or monitoring team. Therefore, quality assessment for departments managing clinical research grants program is important and urgently needed. Our study aims at developing a handy quality assessment tool for IITs that can be applied by both departments and project teams. Methods The framework of the quality assessment tool was developed based on the literature studies, accepted guidelines and the Delphi method. A total of 272 ongoing IITs funded by Shanghai non-profit organizations in 2015 and 2016 were used to extract quality indexes. Confirmatory factor analysis (CFA) was used to further evaluate the validity and feasibility of the conceptual quality assessment tool. Results The tool consisted of 4 critical quality attributes, including progress, quality, regulation, scientificity, and 13 observed quality indexes. A total of 257 IITs were included in the validity and feasibility assessment. The majority (60.29%) were Randomized Controlled Trial (RCT), and 41.18% were multi-center studies. In order to test the validity and feasibility of IITs quality assessment tool, CFA showed that the model fit the data adequately. (CMIN/DF = 1.868, GFI = 0.916; CFI = 0.936; TLI = 0.919; RMSEA = 0.063; SRMR = 0.076). Different types of clinical studies fit well in the tool. However, RCT scored lower than prospective cohort and retrospective study in enrollment progress (7.02 vs. 7.43, 9.63, respectively). Conclusion This study established a panoramic quality assessment tool based on the Delphi method and CFA, and the feasibility and effectiveness of the tool were verified through clinical research examples. The use of this tool can help project management departments effectively and dynamically manage research projects, rationally allocate resources, and ensure the quality of IITs.
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Affiliation(s)
- Wenwen Lv
- Hongqiao International Institute of Medicine, Shanghai Tongren Hospital and School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Tingting Hu
- Hongqiao International Institute of Medicine, Shanghai Tongren Hospital and School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jiayuan Jiang
- Hongqiao International Institute of Medicine, Shanghai Tongren Hospital and School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Tiantian Qu
- Hongqiao International Institute of Medicine, Shanghai Tongren Hospital and School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Enlu Shen
- Hongqiao International Institute of Medicine, Shanghai Tongren Hospital and School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jiacheng Duan
- Department of Cardiothoracic Surgery, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Xin Miao
- Department of Orthopaedic Surgery, Shanghai Jiaotong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Weituo Zhang
- Hongqiao International Institute of Medicine, Shanghai Tongren Hospital and School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China,Weituo Zhang
| | - Biyun Qian
- Hongqiao International Institute of Medicine, Shanghai Tongren Hospital and School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China,Shanghai Clinical Research Promotion and Development Center, Shanghai Shenkang Hospital Development Center, Shanghai, China,*Correspondence: Biyun Qian
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Miao X, Liu L, Wang X, Fan Z, Miao L, Wang J. Clinical efficacy of endoscopic dilation combined with bleomycin injection for benign anastomotic stricture after rectal surgery. Medicine (Baltimore) 2022; 101:e30036. [PMID: 35984174 PMCID: PMC9387986 DOI: 10.1097/md.0000000000030036] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Benign anastomotic stricture is a frequent complication after rectal surgery. This study investigated the feasibility of endoscopic dilation combined with bleomycin injection for benign anastomotic stricture after rectal surgery. 31 patients who diagnosed with benign anastomotic stricture after rectal surgery were included in this study. 15 patients received simple endoscopic dilation (dilation group) and 16 patients received endoscopic dilation combined with bleomycin injection (bleomycin group). The clinical effect and adverse events were compared in the 2 groups. The strictures were managed successfully and the obstruction symptoms were relieved immediately. There were 2 minor complications in dilation group and 3 minor complications in bleomycin group. The difference was not significant between the 2 groups (P > .05). During the follow-up, the mean reintervention interval was 4.97 ± 1.00 months in dilation group and 7.60 ± 1.36 months in bleomycin group. The median treatment times was 4 (range 3-5) in dilation group and 2 (range 2-3) in bleomycin group. The differences in the 2 groups were significant (P < .05). Compared with endoscopic dilation, endoscopic dilation combined with bleomycin injection may reduce the treatment times and prolong the reintervention interval, which is a safe and effective endoscopic management for benign anastomotic stricture after rectal surgery.
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Affiliation(s)
- Xin Miao
- Gastroenterology Department, Taizhou Hospital of Traditional Chinese Medicine, Taizhou, China
| | - Li Liu
- Digestive Endoscopy Department & General Surgery Department, the First Affiliated Hospital with Nanjing Medical University & Jiangsu Province Hospital, Nanjing, China
| | - Xiang Wang
- Digestive Endoscopy Department & General Surgery Department, the First Affiliated Hospital with Nanjing Medical University & Jiangsu Province Hospital, Nanjing, China
| | - Zhining Fan
- Digestive Endoscopy Department & General Surgery Department, the First Affiliated Hospital with Nanjing Medical University & Jiangsu Province Hospital, Nanjing, China
| | - Lin Miao
- Gastroenterology Department, the Second Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Jiankun Wang
- Digestive Endoscopy Department & General Surgery Department, the First Affiliated Hospital with Nanjing Medical University & Jiangsu Province Hospital, Nanjing, China
- *Correspondence: Jiankun Wang, Digestive Endoscopy Department & General Surgery Department, the First Affiliated Hospital with Nanjing Medical University & Jiangsu Province Hospital, 300 Guangzhou Road, 210029, Nanjing, Jiangsu Province, China (e-mail: )
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Miao X, Zhou S, Wang C. A DFT Study on the Adsorption of Carboxyl-Containing Monomers on CH (001) Surface. Russ J Phys Chem B 2022. [DOI: 10.1134/s199079312204011x] [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: 11/23/2022]
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Shen J, Miao X, Vu C, Xu B, González-Zacarías C, Nederveen AJ, Wood JC. Anemia Increases Oxygen Extraction Fraction in Deep Brain Structures but Not in the Cerebral Cortex. Front Physiol 2022; 13:896006. [PMID: 35784894 PMCID: PMC9248375 DOI: 10.3389/fphys.2022.896006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Accepted: 05/19/2022] [Indexed: 01/26/2023] Open
Abstract
Sickle cell disease (SCD) is caused by a single amino acid mutation in hemoglobin, causing chronic anemia and neurovascular complications. However, the effects of chronic anemia on oxygen extraction fraction (OEF), especially in deep brain structures, are less well understood. Conflicting OEF values have been reported in SCD patients, but have largely attributed to different measurement techniques, faulty calibration, and different locations of measurement. Thus, in this study, we investigated the reliability and agreement of two susceptibility-based methods, quantitative susceptibility mapping (QSM) and complex image summation around a spherical or a cylindrical object (CISSCO), for OEF measurements in internal cerebral vein (ICV), reflecting oxygen saturation in deep brain structures. Both methods revealed that SCD patients and non-sickle anemia patients (ACTL) have increased OEF in ICV (42.6% ± 5.6% and 30.5% ± 3.6% in SCD by CISSCO and QSM respectively, 37.0% ± 4.1% and 28.5% ± 2.3% in ACTL) compared with controls (33.0% ± 2.3% and 26.8% ± 1.8%). OEF in ICV varied reciprocally with hematocrit (r 2 = 0.92, 0.53) and oxygen content (r 2 = 0.86, 0.53) respectively. However, an opposite relationship was observed for OEF measurements in sagittal sinus (SS) with the widely used T2-based oximetry, T2-Relaxation-Under-Spin-Tagging (TRUST), in the same cohorts (31.2% ± 6.6% in SCD, 33.3% ± 5.9% in ACTL and 36.8% ± 5.6% in CTL). Importantly, we demonstrated that hemoglobin F and other fast moving hemoglobins decreased OEF by TRUST and explained group differences in sagittal sinus OEF between anemic and control subjects. These data demonstrate that anemia causes deep brain hypoxia in anemia subjects with concomitant preservation of cortical oxygenation, as well as the key interaction of the hemoglobin dissociation curve and cortical oxygen extraction.
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Affiliation(s)
- Jian Shen
- Biomedical Engineering, University of Southern California, Los Angeles, Los Angeles, CA, United States
| | - Xin Miao
- Siemens, Boston, MA, United States
| | - Chau Vu
- Biomedical Engineering, University of Southern California, Los Angeles, Los Angeles, CA, United States
| | - Botian Xu
- Biomedical Engineering, University of Southern California, Los Angeles, Los Angeles, CA, United States
| | - Clio González-Zacarías
- Neuroscience Graduate Program, University of Southern California, Los Angeles, Los Angeles, CA, United States
| | - Aart J. Nederveen
- Amsterdam UMC, Radiology and Nuclear Medicine, University of Amsterdam, Amsterdam, Netherlands
| | - John C. Wood
- Biomedical Engineering, University of Southern California, Los Angeles, Los Angeles, CA, United States,Department of Pediatrics and Radiology, Children’s Hospital Los Angeles, Los Angeles, CA, United States,*Correspondence: John C. Wood,
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Bredfeldt JS, Miao X, Kaza E, Schneider M, Requardt M, Feiweier T, Aizer A, Tanguturi S, Haas-Kogan D, Rahman R, Cagney DN, Sudhyadhom A. Patient specific distortion detection and mitigation in MR images used for stereotactic radiosurgery. Phys Med Biol 2022; 67. [DOI: 10.1088/1361-6560/ac508e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Accepted: 01/31/2022] [Indexed: 11/12/2022]
Abstract
Abstract
Objective. In MRI-based radiation therapy planning, mitigating patient-specific distortion with standard high bandwidth scans can result in unnecessary sacrifices of signal to noise ratio. This study investigates a technique for distortion detection and mitigation on a patient specific basis. Approach. Fast B0 mapping was performed using a previously developed technique for high-resolution, large dynamic range field mapping without the need for phase unwrapping algorithms. A phantom study was performed to validate the method. Distortion mitigation was validated by reducing geometric distortion with increased acquisition bandwidth and confirmed by both the B0 mapping technique and manual measurements. Images and contours from 25 brain stereotactic radiosurgery patients and 95 targets were analyzed to estimate the range of geometric distortions expected in the brain and to estimate bandwidth required to keep all treatment targets within the ±0.5 mm iso-distortion contour. Main Results. The phantom study showed, at 3 T, the technique can measure distortions with a mean absolute error of 0.12 mm (0.18 ppm), and a maximum error of 0.37 mm (0.6 ppm). For image acquisition at 3 T and 1.0 mm resolution, mean absolute distortion under 0.5 mm in patients required bandwidths from 109 to 200 Hz px−1 for patients with the least and most distortion, respectively. Maximum absolute distortion under 0.5 mm required bandwidths from 120 to 390 Hz px−1. Significance. The method for B0 mapping was shown to be valid and may be applied to assess distortion clinically. Future work will adapt the readout bandwidth to prospectively mitigate distortion with the goal to improve radiosurgery treatment outcomes by reducing healthy tissue exposure.
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Hou ZC, Huang HS, Ao YF, Hu YL, Jiao C, Guo QW, Miao X, Li N, Jiang YF, Jiang D. The effectiveness and sustainability of supervised balance training in chronic ankle instability with grade III ligament injury: a one-year prospective study. J Foot Ankle Res 2022; 15:9. [PMID: 35105372 PMCID: PMC8805278 DOI: 10.1186/s13047-022-00514-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2021] [Accepted: 01/20/2022] [Indexed: 12/26/2022] Open
Abstract
Background To determine the effectiveness and sustainability of supervised balance training in people with chronic ankle instability (CAI) with grade III ligament injury. Methods Twenty young adults (12 males and 8 females) diagnosed with CAI with grade III ligament injury underwent 3 months of supervised balance training. The self-reported functional questionnaire, plantar pressure (walking and single leg standing), and isokinetic ankle strength were consecutively evaluated at pre-training, 3 months, 6 months and one year. Paired T tests were used to explore changes in muscle strength and plantar pressures following the supervised balance training. According to whether the patient had sprain recurrence, the patients were divided into sprain recurrence group and control group. The risk factors of sprain recurrence were explored with univariate analysis and multivariable logistic regression. Results The self-reported functional scores, the plantar pressure distribution and the muscle strength showed significant immediate improvements after 3 months of supervised balance training. At 6 months post-training, peak force under 2nd metatarsal, time to peak force under the medial hindfoot, time to boundary measurements and dorsiflexion, and eversion strength were partly declined to the pre-training level. 16 patients (80%) resumed the daily life and sports without sprain recurrence during the follow-up. Four patients (20%) reported ankle sprain during the follow-up, and the sprain recurrence group showed significantly higher Beighton scores (p = 0.012) and weaker initial inversion strength (p = 0.022) than the control group. Conclusions Three months’ of supervised balance training could effectively improve postural control and muscle strength of CAI cases with grade III ligament injury, although these improvements would partially deceased over time. Additional strength exercises for dorsiflexion and eversion should be supplemented from 6 months. Higher Beighton score and initial inversion muscle strength weakness might increase the risk of sprain recurrence. Trial registration ChiCTR, ChiCTR1900023999, Registered 21 June 2019, https://www.chictr.org.cn/edit.aspx?pid=39984&htm=4 Supplementary Information The online version contains supplementary material available at 10.1186/s13047-022-00514-x.
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Affiliation(s)
- Zong-Chen Hou
- Department of sports medicine of Peking university third hospital, Institute of Sports Medicine of Peking University, Beijing Key Laboratory of Sports Injuries, No.49 North Garden Road, Haidian, Beijing, 100191, China
| | - Hong-Shi Huang
- Department of sports medicine of Peking university third hospital, Institute of Sports Medicine of Peking University, Beijing Key Laboratory of Sports Injuries, No.49 North Garden Road, Haidian, Beijing, 100191, China
| | - Ying-Fang Ao
- Department of sports medicine of Peking university third hospital, Institute of Sports Medicine of Peking University, Beijing Key Laboratory of Sports Injuries, No.49 North Garden Road, Haidian, Beijing, 100191, China
| | - Yue-Lin Hu
- Department of sports medicine of Peking university third hospital, Institute of Sports Medicine of Peking University, Beijing Key Laboratory of Sports Injuries, No.49 North Garden Road, Haidian, Beijing, 100191, China
| | - Chen Jiao
- Department of sports medicine of Peking university third hospital, Institute of Sports Medicine of Peking University, Beijing Key Laboratory of Sports Injuries, No.49 North Garden Road, Haidian, Beijing, 100191, China
| | - Qin-Wei Guo
- Department of sports medicine of Peking university third hospital, Institute of Sports Medicine of Peking University, Beijing Key Laboratory of Sports Injuries, No.49 North Garden Road, Haidian, Beijing, 100191, China
| | - Xin Miao
- Department of sports medicine of Peking university third hospital, Institute of Sports Medicine of Peking University, Beijing Key Laboratory of Sports Injuries, No.49 North Garden Road, Haidian, Beijing, 100191, China
| | - Nan Li
- Research Center of Clinical Epidemiology, Peking University Third Hospital, No.49 North Garden Road, Haidian, Beijing, 100191, China
| | - Yan-Fang Jiang
- Research Center of Clinical Epidemiology, Peking University Third Hospital, No.49 North Garden Road, Haidian, Beijing, 100191, China
| | - Dong Jiang
- Department of sports medicine of Peking university third hospital, Institute of Sports Medicine of Peking University, Beijing Key Laboratory of Sports Injuries, No.49 North Garden Road, Haidian, Beijing, 100191, China.
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Zheng X, Miao X, Xiao Y, Guo L, Wang Y, Hu T, Gong X, Wu C, Xiong C. Durable polymer solar cells produced by the encapsulation of a WSe 2 hole-transport layer and β-carotene as an active layer additive. Inorg Chem Front 2022. [DOI: 10.1039/d1qi01458g] [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: 11/21/2022]
Abstract
WSe2 nanoflakes are obtained by liquid-phase exfoliation. Polymer solar cells with NF-WSe2 as the hole transport layer (HTL) are realized with superior photovoltaic characteristics.
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Affiliation(s)
- Xuan Zheng
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, Collaborative Innovation Center of Green Lightweight Materials and Processing, and School of Materials and Chemical Engineering, Hubei University of Technology, Wuhan, 430068, China
| | - Xin Miao
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, Collaborative Innovation Center of Green Lightweight Materials and Processing, and School of Materials and Chemical Engineering, Hubei University of Technology, Wuhan, 430068, China
| | - Yufei Xiao
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, Collaborative Innovation Center of Green Lightweight Materials and Processing, and School of Materials and Chemical Engineering, Hubei University of Technology, Wuhan, 430068, China
| | - Lei Guo
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, Collaborative Innovation Center of Green Lightweight Materials and Processing, and School of Materials and Chemical Engineering, Hubei University of Technology, Wuhan, 430068, China
| | - Yalin Wang
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, Collaborative Innovation Center of Green Lightweight Materials and Processing, and School of Materials and Chemical Engineering, Hubei University of Technology, Wuhan, 430068, China
| | - Tao Hu
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, Collaborative Innovation Center of Green Lightweight Materials and Processing, and School of Materials and Chemical Engineering, Hubei University of Technology, Wuhan, 430068, China
| | - Xinghou Gong
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, Collaborative Innovation Center of Green Lightweight Materials and Processing, and School of Materials and Chemical Engineering, Hubei University of Technology, Wuhan, 430068, China
| | - Chonggang Wu
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, Collaborative Innovation Center of Green Lightweight Materials and Processing, and School of Materials and Chemical Engineering, Hubei University of Technology, Wuhan, 430068, China
| | - Chuanxi Xiong
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, China
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Wang B, Wan Z, Li C, Zhang M, Shi Y, Miao X, Jian Y, Luo Y, Yao J, Tian W. Identification of benign and malignant thyroid nodules based on dynamic AI ultrasound intelligent auxiliary diagnosis system. Front Endocrinol (Lausanne) 2022; 13:1018321. [PMID: 36237194 PMCID: PMC9551607 DOI: 10.3389/fendo.2022.1018321] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Accepted: 09/06/2022] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND Dynamic artificial intelligence (AI) ultrasound intelligent auxiliary diagnosis system (Dynamic AI) is a joint application of AI technology and medical imaging data, which can perform a real-time synchronous dynamic analysis of nodules. The aim of this study is to investigate the value of dynamic AI in differentiating benign and malignant thyroid nodules and its guiding significance for treatment strategies. METHODS The data of 607 patients with 1007 thyroid nodules who underwent surgical treatment were reviewed and analyzed, retrospectively. Dynamic AI was used to differentiate benign and malignant nodules. The diagnostic efficacy of dynamic AI was evaluated by comparing the results of dynamic AI examination, preoperative fine needle aspiration cytology (FNAC) and postoperative pathology of nodules with different sizes and properties in patients of different sexes and ages. RESULTS The sensitivity, specificity and accuracy of dynamic AI in the diagnosis of thyroid nodules were 92.21%, 83.20% and 89.97%, respectively, which were highly consistent with the postoperative pathological results (kappa = 0.737, p < 0.001). There is no statistical difference in accuracy between people with different ages and sexes and nodules of different sizes, which showed the good stability. The accuracy of dynamic AI in malignant nodules (92.21%) was significantly higher than that in benign nodules (83.20%) (p < 0.001). The specificity and positive predictive value were significantly higher, and the misdiagnosis rate was significantly lower in dynamic AI than that of preoperative ultrasound ACR TI-RADS (p < 0.001). The accuracy of dynamic AI in nodules with diameter ≤ 0.50 cm was significantly higher than that of preoperative ultrasound (p = 0.044). Compared with FNAC, the sensitivity (96.58%) and accuracy (94.06%) of dynamic AI were similar. CONCLUSIONS The dynamic AI examination has high diagnostic value for benign and malignant thyroid nodules, which can effectively assist surgeons in formulating scientific and reasonable individualized diagnosis and treatment strategies for patients.
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Affiliation(s)
- Bing Wang
- Senior Department of General Surgery, The First Medical Center of Chinese People's Liberation Army (PLA) General Hospital, Beijing, China
| | - Zheng Wan
- Senior Department of General Surgery, The First Medical Center of Chinese People's Liberation Army (PLA) General Hospital, Beijing, China
| | - Chen Li
- Senior Department of General Surgery, The First Medical Center of Chinese People's Liberation Army (PLA) General Hospital, Beijing, China
| | - Mingbo Zhang
- Department of Ultrasound, The First Medical Center of Chinese People's Liberation Army (PLA) General Hospital, Beijing, China
| | - YiLei Shi
- MedAI Technology (Wuxi) Co. Ltd, Wuxi, China
| | - Xin Miao
- Senior Department of General Surgery, The First Medical Center of Chinese People's Liberation Army (PLA) General Hospital, Beijing, China
| | - Yanbing Jian
- Senior Department of General Surgery, The First Medical Center of Chinese People's Liberation Army (PLA) General Hospital, Beijing, China
| | - Yukun Luo
- Department of Ultrasound, The First Medical Center of Chinese People's Liberation Army (PLA) General Hospital, Beijing, China
| | - Jing Yao
- Senior Department of General Surgery, The First Medical Center of Chinese People's Liberation Army (PLA) General Hospital, Beijing, China
- *Correspondence: Jing Yao, ; Wen Tian,
| | - Wen Tian
- Senior Department of General Surgery, The First Medical Center of Chinese People's Liberation Army (PLA) General Hospital, Beijing, China
- *Correspondence: Jing Yao, ; Wen Tian,
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Wan X, Chen E, Yao J, Gao M, Miao X, Wang S, Gu Y, Xiao S, Zhan R, Chen K, Chen Z, Zeng X, Gu X, Xu J. Synthesis and Characterization of Metallic Janus MoSH Monolayer. ACS Nano 2021; 15:20319-20331. [PMID: 34870978 DOI: 10.1021/acsnano.1c08531] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Janus transition-metal dichalcogenides (TMDCs) are emerging as special 2D materials with different chalcogen atoms covalently bonded on each side of the unit cell, resulting in interesting properties. To date, several synthetic strategies have been developed to realize Janus TMDCs, which first involves stripping the top-layer S of MoS2 with H atoms. However, there has been little discussion on the intermediate Janus MoSH. It is critical to find the appropriate plasma treatment time to avoid sample damage. A thorough understanding of the formation and properties of MoSH is highly desirable. In this work, a controlled H2-plasma treatment has been developed to gradually synthesize a Janus MoSH monolayer, which was confirmed by the TOF-SIMS analysis as well as the subsequent fabrication of MoSSe. The electronic properties of MoSH, including the high intrinsic carrier concentration (∼2 × 1013 cm-2) and the Fermi level (∼ - 4.11 eV), have been systematically investigated by the combination of FET device study, KPFM, and DFT calculations. The results demonstrate a method for the creation of Janus MoSH and present the essential electronic parameters which have great significance for device applications. Furthermore, owing to the metallicity, 2D Janus MoSH might be a potential platform to observe the SPR behavior in the mid-infrared region.
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Affiliation(s)
- Xi Wan
- Engineering Research Center of IoT Technology Applications (Ministry of Education), Department of Electronic Engineering, Jiangnan University, Wuxi 214122, China
| | - EnZi Chen
- State Key Laboratory of Optoelectronic Materials and Technologies, School of Electronics and Information Technology and Guangdong Province Key Laboratory of Display Material, Sun Yat-sen University, Guangzhou 510275, China
| | - Jie Yao
- Engineering Research Center of IoT Technology Applications (Ministry of Education), Department of Electronic Engineering, Jiangnan University, Wuxi 214122, China
| | - Mingliang Gao
- Engineering Research Center of IoT Technology Applications (Ministry of Education), Department of Electronic Engineering, Jiangnan University, Wuxi 214122, China
| | - Xin Miao
- Engineering Research Center of IoT Technology Applications (Ministry of Education), Department of Electronic Engineering, Jiangnan University, Wuxi 214122, China
| | - Shuai Wang
- Engineering Research Center of IoT Technology Applications (Ministry of Education), Department of Electronic Engineering, Jiangnan University, Wuxi 214122, China
| | - Yanyun Gu
- Engineering Research Center of IoT Technology Applications (Ministry of Education), Department of Electronic Engineering, Jiangnan University, Wuxi 214122, China
| | - Shaoqing Xiao
- Engineering Research Center of IoT Technology Applications (Ministry of Education), Department of Electronic Engineering, Jiangnan University, Wuxi 214122, China
| | - Runze Zhan
- State Key Laboratory of Optoelectronic Materials and Technologies, School of Electronics and Information Technology and Guangdong Province Key Laboratory of Display Material, Sun Yat-sen University, Guangzhou 510275, China
| | - Kun Chen
- State Key Laboratory of Optoelectronic Materials and Technologies, School of Electronics and Information Technology and Guangdong Province Key Laboratory of Display Material, Sun Yat-sen University, Guangzhou 510275, China
| | - Zefeng Chen
- School of Optoelectronic Science and Engineering, Soochow University, Suzhou 215006, China
| | - Xiaoliang Zeng
- Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Xiaofeng Gu
- Engineering Research Center of IoT Technology Applications (Ministry of Education), Department of Electronic Engineering, Jiangnan University, Wuxi 214122, China
| | - Jianbin Xu
- Department of Electronic Engineering and Materials Science and Technology Research Center, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong Special Administrative Region 999077, People's Republic of China
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Chen Y, Miao X, Hsu C, Zhuang Y, Kollmeier A, Xu Z, Zhou H, Sharma A. Population pharmacokinetics and exposure-response modeling analyses of guselkumab in patients with psoriatic arthritis. Clin Transl Sci 2021; 15:749-760. [PMID: 34854241 PMCID: PMC8932692 DOI: 10.1111/cts.13197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 10/05/2021] [Accepted: 11/03/2021] [Indexed: 12/01/2022] Open
Abstract
Guselkumab is an anti-interleukin-23 human monoclonal antibody effective in treating psoriatic arthritis (PsA). To characterize the pharmacokinetics (PKs) and exposure-response relationship of guselkumab in PsA, population PKs, and exposure-response modeling, analyses were conducted using data from pivotal phase III studies of subcutaneous guselkumab in patients with PsA. The observed serum concentration-time data of guselkumab were adequately described by a one-compartment linear PK model with first-order absorption and elimination. Covariates identified as contributing to the observed guselkumab PK variability were body weight and diabetes comorbidity; however, the magnitude of the effects of these covariates was not considered clinically relevant, and dose adjustment was not warranted for the patient population investigated. Positive exposure-response relationships were demonstrated with landmark and longitudinal exposure-response analyses between guselkumab exposure and clinical efficacy end points (American College of Rheumatology [ACR] 20%, 50%, and 70% improvement criteria and Investigator's Global Assessment [IGA] of psoriasis) at weeks 20 and/or 24, with no clinically relevant differences observed in improvement of PsA signs and symptoms between the two guselkumab treatment regimens evaluated (100 mg every 4 weeks or 100 mg at weeks 0 and 4, then every 8 weeks). Baseline Disease Activity Score in 28 joints (DAS28), Psoriasis Area and Severity Index (PASI) score, and/or C-reactive protein level were identified as influencing covariates on guselkumab exposure-response model parameters. These results provide a comprehensive evaluation of subcutaneous guselkumab PKs and exposure-response relationship that supports the dose regimen of 100 mg at weeks 0 and 4, then every 8 weeks in patients with PsA.
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Affiliation(s)
- Yang Chen
- Clinical Pharmacology & PharmacometricsJanssen Research & Development, LLCSpring HousePennsylvaniaUSA
| | - Xin Miao
- Clinical Pharmacology & PharmacometricsJanssen Research & Development, LLCSpring HousePennsylvaniaUSA
| | - Chyi‐Hung Hsu
- Clinical Pharmacology & PharmacometricsJanssen Research & Development, LLCSpring HousePennsylvaniaUSA
| | - Yanli Zhuang
- Clinical Pharmacology & PharmacometricsJanssen Research & Development, LLCSpring HousePennsylvaniaUSA
| | - Alexa Kollmeier
- Immunology Clinical ResearchJanssen Research & Development, LLCSan DiegoCaliforniaUSA
| | - Zhenhua Xu
- Clinical Pharmacology & PharmacometricsJanssen Research & Development, LLCSpring HousePennsylvaniaUSA
| | - Honghui Zhou
- Clinical Pharmacology & PharmacometricsJanssen Research & Development, LLCSpring HousePennsylvaniaUSA
| | - Amarnath Sharma
- Clinical Pharmacology & PharmacometricsJanssen Research & Development, LLCSpring HousePennsylvaniaUSA
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Yang R, Miao X, Wong CWY, Wang T, Du M. Assessment on the interaction between technology innovation and eco-environmental systems in China. Environ Sci Pollut Res Int 2021; 28:63127-63149. [PMID: 34227007 DOI: 10.1007/s11356-021-15149-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Accepted: 06/22/2021] [Indexed: 06/13/2023]
Abstract
To investigate the latent relation between technology innovation and eco-environmental systems and promote their coordinated development, we integrated the coupling coordination model and panel vector autoregressive model to examine the evidence from China. The research reveals that the technology innovation benefit and eco-environmental governance and endowment are the prominent factors for optimizing the two systems. Moreover, the findings show that the coupling coordination degree of eco-environment and technology innovation in China presents an upward trend. In terms of the dynamic interaction between technology innovation and eco-environment, the influence of the former on the latter is timely while that of the latter on the former is lagging (except for the central region). The weak coupling coordination degree implies that the mutual promotion of technology innovation and eco-environmental systems has not yet formed. The policy implications are proposed accordingly to promote coordinated development of eco-environment and technology innovation in China.
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Affiliation(s)
- Rui Yang
- School of Management, Harbin Institute of Technology, Harbin, 150001, China
| | - Xin Miao
- School of Management, Harbin Institute of Technology, Harbin, 150001, China.
| | - Christina W Y Wong
- Business Division, The Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hunghom, Kowloon, Hong Kong
| | - Teng Wang
- School of Business Administration, Northeastern University, Shenyang, 110006, China
| | - Mengjin Du
- School of Management, Harbin Institute of Technology, Harbin, 150001, China
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45
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Li H, Wang F, Miao X, Huang W, Cheng Y, Xiao Y, Wei T, Zhang Y. Splicing exponential point spread function design for localization of nanoparticles. Opt Express 2021; 29:35336-35347. [PMID: 34808970 DOI: 10.1364/oe.440721] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Accepted: 10/05/2021] [Indexed: 06/13/2023]
Abstract
We propose a point spread function for three-dimensional localization of nanoparticles. The axial detection range of the point spread function can be simply changed by adjusting the design parameters. In addition, the spatial extent of the point spread function can also be changed by adjusting the design parameters, which is an advantage other point spread functions do not have. We used our point spread functions and the existing point spread functions for dense multi-particle imaging, which proved the advantage that the point spread function with a smaller spatial extent we designed can effectively reduce the overlap between the point spread functions. The three-dimensional process of the fluorescent microsphere penetrating HT-22 cell membrane was successfully recorded, which verified the effectiveness of this method.
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46
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Li H, Wang F, Wei T, Miao X, Cheng Y, Pang X, Jiang K, Huang W, Zhang Y. Particles 3D tracking with large axial depth by using the 2π-DH-PSF. Opt Lett 2021; 46:5088-5091. [PMID: 34653122 DOI: 10.1364/ol.434981] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Accepted: 08/16/2021] [Indexed: 06/13/2023]
Abstract
We propose a 2π-double-helix point spread function (2π-DH-PSF) using the Fresnel zone approach that can rotate 2π rad. When 16 Fresnel zones are used, the particles can be tracked in the axial range of 10 µm in a 100× microscopy imaging system (NA=1.4, λ=514nm). We measured the diffusion coefficient of nanospheres in different concentrations of glycerol with the 2π-DH-PSF, and the error between the measured results and theoretical value was within 10%, indicating the superior performance of 2π-DH-PSF in 3D localization imaging of nanoparticles. When combined with the defocus phase, the rotation angle can reach 4π rad, four times that of the conventional DH-PSF.
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47
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Wang L, Chen Y, Zhou W, Miao X, Zhou H. Utilization of physiologically-based pharmacokinetic model to assess disease-mediated therapeutic protein-disease-drug interaction in immune-mediated inflammatory diseases. Clin Transl Sci 2021; 15:464-476. [PMID: 34581012 PMCID: PMC8841519 DOI: 10.1111/cts.13164] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Revised: 08/30/2021] [Accepted: 09/06/2021] [Indexed: 11/30/2022] Open
Abstract
It is known that interleukin-6 (IL-6) can significantly modulate some key drug-metabolizing enzymes, such as phase I cytochrome P450s (CYPs). In this study, a physiologically-based pharmacokinetic (PBPK) model was developed to assess CYPs mediated therapeutic protein drug interactions (TP-DIs) in patients with immune-mediated inflammatory diseases (IMIDs) with elevated systemic IL-6 levels when treated by anti-IL-6 therapies. Literature data of IL-6 levels in various diseases were incorporated in SimCYP to construct respective virtual patient populations. The modulation effects of systemic IL-6 level and local IL-6 level in the gastrointestinal tract (GI) on CYPs activities were assessed. Upon blockade of the IL-6 signaling pathway by an anti-IL-6 treatment, the area under plasma concentration versus time curves (AUCs) of S-warfarin, omeprazole, and midazolam were predicted to decrease by up to 40%, 42%, and 46%, respectively. In patients with Crohn's disease and ulcerative colitis treated with an anti-IL-6 therapy, the lowering of the elevated IL-6 levels in the local GI tissue were predicted to result in further decreases in AUCs of those CYP substrates. The propensity of TP-DIs under comorbidity conditions, such as in patients with cancer with IMID, were also explored. With further validation with relevant clinical data, this PBPK model may provide an in silico way to quantify the magnitude of potential TP-DI in patients with elevated IL-6 levels when an anti-IL-6 therapeutic is used with concomitant small-molecule drugs. This model may be further adapted to evaluate the CYP modulation effect by other therapeutic modalities, which would significantly alter levels of proinflammatory cytokines during the treatment period.
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Affiliation(s)
- Lujing Wang
- Clinical Pharmacology and Pharmacometrics, Janssen Research & Development, LLC, Spring House, Pennsylvania, USA.,Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, USA
| | - Yang Chen
- Clinical Pharmacology and Pharmacometrics, Janssen Research & Development, LLC, Spring House, Pennsylvania, USA
| | - Wangda Zhou
- Clinical Pharmacology and Pharmacometrics, Janssen Research & Development, LLC, Spring House, Pennsylvania, USA
| | - Xin Miao
- Clinical Pharmacology and Pharmacometrics, Janssen Research & Development, LLC, Spring House, Pennsylvania, USA
| | - Honghui Zhou
- Clinical Pharmacology and Pharmacometrics, Janssen Research & Development, LLC, Spring House, Pennsylvania, USA
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Vu C, Bush A, Choi S, Borzage M, Miao X, Nederveen AJ, Coates TD, Wood JC. Reduced global cerebral oxygen metabolic rate in sickle cell disease and chronic anemias. Am J Hematol 2021; 96:901-913. [PMID: 33891719 DOI: 10.1002/ajh.26203] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 04/19/2021] [Accepted: 04/21/2021] [Indexed: 12/18/2022]
Abstract
Anemia is the most common blood disorder in the world. In patients with chronic anemia, such as sickle cell disease or major thalassemia, cerebral blood flow increases to compensate for decreased oxygen content. However, the effects of chronic anemia on oxygen extraction fraction (OEF) and cerebral metabolic rate of oxygen (CMRO2 ) are less well understood. In this study, we examined 47 sickle-cell anemia subjects (age 21.7 ± 7.1, female 45%), 27 non-sickle anemic subjects (age 25.0 ± 10.4, female 52%) and 44 healthy controls (age 26.4 ± 10.6, female 71%) using MRI metrics of brain oxygenation and flow. Phase contrast MRI was used to measure resting cerebral blood flow, while T2 -relaxation-under-spin-tagging (TRUST) MRI with disease appropriate calibrations were used to measure OEF and CMRO2 . We observed that patients with sickle cell disease and other chronic anemias have decreased OEF and CMRO2 (respectively 27.4 ± 4.1% and 3.39 ± 0.71 ml O2 /100 g/min in sickle cell disease, 30.8 ± 5.2% and 3.53 ± 0.64 ml O2 /100 g/min in other anemias) compared to controls (36.7 ± 6.0% and 4.00 ± 0.65 ml O2 /100 g/min). Impaired CMRO2 was proportional to the degree of anemia severity. We further demonstrate striking concordance of the present work with pooled historical data from patients having broad etiologies for their anemia. The reduced cerebral oxygen extraction and metabolism are consistent with emerging data demonstrating increased non-nutritive flow, or physiological shunting, in sickle cell disease patients.
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Affiliation(s)
- Chau Vu
- Department of Biomedical Engineering University of Southern California Los Angeles California USA
| | - Adam Bush
- Department of Biomedical Engineering University of Southern California Los Angeles California USA
- Department of Radiology Stanford University Stanford California USA
| | - Soyoung Choi
- Neuroscience Graduate Program University of Southern California Los Angeles California USA
| | - Matthew Borzage
- Division of Neonatology, Fetal and Neonatal Institute Children's Hospital Los Angeles Los Angeles California USA
- Department of Pediatrics, Keck School of Medicine University of Southern California Los Angeles California USA
| | - Xin Miao
- Department of Biomedical Engineering University of Southern California Los Angeles California USA
| | - Aart J. Nederveen
- University of Amsterdam, Amsterdam UMC, Radiology and Nuclear Medicine Amsterdam The Netherlands
| | - Thomas D. Coates
- Division of Hematology‐Oncology, Department of Pediatrics Children's Hospital Los Angeles Los Angeles California USA
- Departments of Pediatrics and Pathology, Keck School of Medicine University of Southern California Los Angeles California USA
| | - John C. Wood
- Department of Biomedical Engineering University of Southern California Los Angeles California USA
- Division of Cardiology, Departments of Pediatrics and Radiology Children's Hospital Los Angeles Los Angeles California USA
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Liu S, Li XM, Yuan JB, Li LL, Wang C, Lin XM, Miao X, Shi ZC. MiR-665 inhibits inflammatory response in microglia following spinal cord injury by targeting TREM2. Eur Rev Med Pharmacol Sci 2021; 25:65-70. [PMID: 33506893 DOI: 10.26355/eurrev_202101_24349] [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] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE The purpose of this study was to uncover the role of microRNA-665 (miR-665) in protecting inflammatory response in microglia following spinal cord injury (SCI) and the underlying mechanism. PATIENTS AND METHODS The serum levels of miR-665 and TREM2 (triggering receptor expressed on myeloid 2) in SCI patients (n=24) and healthy subjects (n=24) were detected by quantitative Real Time-Polymerase Chain Reaction (qRT-PCR). Then, the serum levels of interleukin-6 (IL-6) and tumor necrosis factor-α (TNF-α) were detected by enzyme-linked immunosorbent assay (ELISA). After lipopolysaccharide (LPS) induction in BV2 cells, the relative levels of miR-665 and TREM2 were detected by qRT-PCR, and relative levels of IL-6 and TNF-α in the culture medium were examined by ELISA. Next, TREM2, the target gene of miR-665, was determined by Dual-Luciferase reporter assay, and the relationship between the expression levels of TREM2 and miR-665 in SCI patients and BV2 cells was analyzed. Finally, the regulatory effects of miR-665 and TREM2 on IL-6 and TNF-α levels in the culture medium of LPS-induced BV2 cells were assessed. RESULTS It was found that miR-665 was downregulated in serum of SCI patients and LPS-induced BV2 cells, while TREM2 was upregulated. Silenced miR-665 or overexpressed TREM2 was involved in protecting inflammatory response following SCI. Besides, rescue experiments showed that miR-665 participated in the regulation of inflammatory response following SCI by targeting TREM2. CONCLUSIONS MiR-665 inhibits inflammatory response following SCI by targeting TREM2.
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Affiliation(s)
- S Liu
- Department of Orthopaedics, Changhai Hospital, Second Military Medical University, Shanghai, China.
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Girgis S, Wang Lin SX, Pillarisetti K, Verona R, Vieyra D, Casneuf T, Fink D, Miao X, Chen Y, Stephenson T, Banerjee A, Hilder B, Russell JS, Smit J, Goldberg JD. Teclistamab and talquetamab modulate levels of soluble B-cell maturation antigen in patients with relapsed and/or refractory multiple myeloma. J Clin Oncol 2021. [DOI: 10.1200/jco.2021.39.15_suppl.8047] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
8047 Background: B-cell maturation antigen (BCMA, CD269) is a single transmembrane protein that is selectively expressed in the B-cell lineage and is a validated target for multiple myeloma. BCMA exists as both surface protein and as a free soluble form (sBCMA). γ-secretase activity at the transmembrane domain leads to a shed BCMA protein fragment of approximately 6 kilodalton that can exist as free circulating sBCMA in blood. Teclistamab and talquetamab are CD3 bispecific antibodies that have been developed to recruit CD3+ T-cells to BCMA+ or GPRC5D+ multiple myeloma (MM) cells, respectively. The objective of this work was to evaluate sBCMA in relapsed and/or refractory MM patients in response to treatment with teclistamab or talquetamab. Methods: Serum samples from relapsed and/or refractory MM patients in teclistamab and talquetamab phase 1 studies (64007957MMY1001 and 64407564MMY1001) were collected (at various timepoints between baseline and cycle 4 or end of treatment) and analyzed for sBCMA by an electrochemiluminescence ligand binding assay. Soluble BCMA data were quantitatively analyzed in reference to patient’s tumor burden and response, as well as pharmacokinetic data. Results: Teclistamab and talquetamab modulated levels of sBCMA in patients with high ( ≥ 50%) and low ( < 50%) frequency of tumor plasma cells (TPCs), as well as in high and low risk cytogenetic groups. In cycle 3, majority of the responders had reduction in sBCMA [88% (50 out of 57) for teclistamab and 98% (49 out of 50) for talquetamab] compared to baseline. On the contrary, non-responders (progressive disease, stable disease, or minimal response) seemed to show an increase in sBCMA [80% (33 out of 41) for teclistamab and 49% (24 out of 49) for talquetamab] from baseline. Patients with deep responses tend to have higher magnitude of sBCMA reduction compared to others. Based on few patients who responded to teclistamab or talquetamab and then relapsed, sBCMA seemed to have an initial reduction followed by an increase in the levels. Soluble BCMA corelated with % bone marrow TPCs. Majority of patients with plasmacytoma (limited data) seemed to have high sBCMA; suggesting sBCMA could be a comprehensive marker for tumor burden. Teclistamab preliminary population pharmacokinetic analysis showed that sBCMA did not appear to impact teclistamab exposure, suggesting that sBCMA was not acting as a sink for teclistamab. Conclusions: Teclistamab and talquetamab induced changes in levels of sBCMA that correlated with clinical activity, further supporting clinical development of these bispecific antibodies. Lastly, the results support that sBCMA is a potential surrogate marker of myeloma tumor burden, and as a valuable marker for response in MM patients. Clinical trial information: NCT03145181 and NCT03399799.
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