1
|
Tian J, Zhao T, Tu R, Zhang B, Huang Y, Shen Z, Wang Y, Du G. Achromobacter species (sp.) outbreak caused by hospital equipment containing contaminated water: risk factors for infection. J Hosp Infect 2024; 146:141-147. [PMID: 38403082 DOI: 10.1016/j.jhin.2024.02.002] [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: 01/30/2024] [Accepted: 02/07/2024] [Indexed: 02/27/2024]
Abstract
BACKGROUND Nosocomial outbreaks of urinary tract infections caused by Achromobacter spp. have been rare in recent decades. AIM To identify the origin of an Achromobacter sp. outbreak, conduct multi-modal infection control measures, and finally to stop the outbreak. To this end, an epidemiological outbreak investigation and risk factor analysis were performed. METHODS Achromobacter sp. was detected in 22 patients in our urology wards and six environmental cultures of specimens obtained from the operating rooms. Strains isolated were submitted for antimicrobial susceptibility testing. An on-site epidemiological investigation, evaluation of patient medical records, and environmental sampling were performed to identify the source of the outbreak, and implementation of infection control intervention. A case-control study was performed to analyse the potential risk factors. FINDINGS Environmental sampling showed that the source of the infection for 22 patients was an ISA-IIIA-type medical pressurizer containing contaminated water. A case-control analysis showed that the risk factors for infection were: diagnosis of kidney/ureteral stones, surgery, placement of a double-J stent, and history of hospitalization in the past three months. CONCLUSION It was concluded that the outbreak occurred in patients who underwent internal lithotripsy and double-J stent placement, due to contact transmission with the contaminated sensor and connecting tubes of the ISA-IIIA-type medical pressurizer.
Collapse
Affiliation(s)
- J Tian
- Department of Infection and Management, The First People's Hospital of Guiyang, Guizhou, China
| | - T Zhao
- Department of Infection and Management, The First People's Hospital of Guiyang, Guizhou, China
| | - R Tu
- Department of Infection and Management, The First People's Hospital of Guiyang, Guizhou, China
| | - B Zhang
- Department of Infection and Management, The First People's Hospital of Guiyang, Guizhou, China
| | - Y Huang
- Department of Urology, The First People's Hospital of Guiyang, Guizhou, China
| | - Z Shen
- Department of Nursing, The First People's Hospital of Guiyang, Guizhou, China
| | - Y Wang
- Department of Clinical Laboratory, The First People's Hospital of Guiyang, Guizhou, China
| | - G Du
- Department of Infection and Management, The First People's Hospital of Guiyang, Guizhou, China.
| |
Collapse
|
2
|
Wang Z, Lu J, Ge H, Li Z, Zhang M, Pan F, Wang R, Jin H, Yang G, Shen Z, Du G, Zhan H. Morphology and transverse alignment of the patella have no effect on knee gait characteristics in healthy Chinese adults over the age of 40 years. Front Bioeng Biotechnol 2024; 12:1319602. [PMID: 38562671 PMCID: PMC10982314 DOI: 10.3389/fbioe.2024.1319602] [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: 10/11/2023] [Accepted: 03/01/2024] [Indexed: 04/04/2024] Open
Abstract
Background: The influence of patella morphology and horizontal alignment on knee joint kinematics and kinetics remains uncertain. This study aimed to assess patella morphology and transverse alignment in relation to knee kinetics and kinematics in individuals without knee conditions. A secondary objective was to investigate the impact of femur and tibia alignment and shape on knee gait within this population. Patients and methods: We conducted a prospective collection of data, including full-leg anteroposterior and skyline X-ray views and three-dimensional gait data, from a cohort comprising 54 healthy individuals aged 40 years and older. Our study involved correlation and logistic regression analyses to examine the influence of patella, femur, and tibia morphology and alignment on knee gait. Results: The patellar tilt angle or the patella index did not show any significant relationships with different aspects of gait in the knee joint, such as velocity, angle, or moment (p > 0.05, respectively). Using multivariate logistic regression analysis, we found that the tibiofemoral angle and the Q angle both had a significant effect on the adduction angle (OR = 1.330, 95%CI 1.033-1.711, p = 0.027; OR = 0.475, 95%CI 0.285-0.792, p = 0.04; respectively). The primary variable influencing the knee adduction moment was the tibiofemoral angle (OR = 1.526, 95% CI 1.125-2.069, p = 0.007). Conclusion: In healthy Chinese individuals aged over 40, patella morphology and transverse alignment do not impact knee gait. However, the femoral-tibial angle has a big impact on the knee adduction moment.
Collapse
Affiliation(s)
- Zhengming Wang
- Shi’s Center of Orthopedics and Traumatology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Institute of Traumatology and Orthopedics, Shanghai Academy of Traditional Chinese Medicine, Shanghai, China
| | - Jiehang Lu
- Shi’s Center of Orthopedics and Traumatology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Institute of Traumatology and Orthopedics, Shanghai Academy of Traditional Chinese Medicine, Shanghai, China
| | - Haiya Ge
- Shi’s Center of Orthopedics and Traumatology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Institute of Traumatology and Orthopedics, Shanghai Academy of Traditional Chinese Medicine, Shanghai, China
| | - Zhengyan Li
- Shi’s Center of Orthopedics and Traumatology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Institute of Traumatology and Orthopedics, Shanghai Academy of Traditional Chinese Medicine, Shanghai, China
| | - Min Zhang
- Shi’s Center of Orthopedics and Traumatology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Institute of Traumatology and Orthopedics, Shanghai Academy of Traditional Chinese Medicine, Shanghai, China
| | - Fuwei Pan
- Shi’s Center of Orthopedics and Traumatology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Institute of Traumatology and Orthopedics, Shanghai Academy of Traditional Chinese Medicine, Shanghai, China
- Department of Massage, Third Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou, China
| | - Rui Wang
- Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Hengkai Jin
- The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, Zhejiang, China
| | - Guangyue Yang
- Shi’s Center of Orthopedics and Traumatology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Zhibi Shen
- Shi’s Center of Orthopedics and Traumatology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Institute of Traumatology and Orthopedics, Shanghai Academy of Traditional Chinese Medicine, Shanghai, China
| | - Guoqing Du
- Shi’s Center of Orthopedics and Traumatology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Hongsheng Zhan
- Shi’s Center of Orthopedics and Traumatology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Institute of Traumatology and Orthopedics, Shanghai Academy of Traditional Chinese Medicine, Shanghai, China
| |
Collapse
|
3
|
Wang Z, Lu J, Li Z, Wang Y, Ge H, Zhang M, Wang R, Gu Y, Ding L, Ren W, Shen Z, Du G, Wu Y, Zhan H. Qualitative and Quantitative Measures in the Infrapatellar Fat Pad in Older Adults: Associations with Knee Pain, Radiographic Osteoarthritis, Kinematics, and Kinetics of the Knee. Acad Radiol 2024:S1076-6332(24)00083-7. [PMID: 38413312 DOI: 10.1016/j.acra.2024.02.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Revised: 02/07/2024] [Accepted: 02/07/2024] [Indexed: 02/29/2024]
Abstract
RATIONALE AND OBJECTIVES The purpose of this study is to delineate cross-sectional associations between qualitative and quantitative measures of the infrapatellar fat pad (IPFP) and knee symptoms, structure, kinematics, and kinetics in older adults. METHODS Ninety eligible subjects (90 knees, mean age 54.0 years, 68.9% female) were examined at our center. We used T2-weighted fat-suppressed magnetic resonance imaging (MRI) to evaluate signal intensity alteration, maximum sagittal area, and depth of the IPFP. Symptomatic osteoarthritis (SOA) was a pain subscale score greater than 0 on the Western Ontario McMaster Osteoarthritis Index. A Kellgren-Lawrence grade ≥ 2 identified incident radiographic osteoarthritis (iROA). Three-dimensional gait data were employed to analyze knee joint kinematics and kinetics. Correlation and regression analyzes assessed associations between IPFP measurements and SOA, iROA, kinematics, and kinetics. RESULTS There were strong and positive associations between IPFP signal intensity alteration and both SOA and iROA in multivariable regression analyzes [OR (95% CI): 2.849 (1.440 to 5.636), 2.356 (1.236 to 4.492), respectively]. Conversely, a significant negative correlation was observed between IPFP maximum area and flexion angle [B (95%CI): - 1.557 (-2.549 to -0.564)]. Moreover, adjusting for covariates did not reveal any significant correlation between IPFP parameters and other indicators (P > 0.05, respectively). CONCLUSION IPFP signal intensity alteration and area were associated with knee clinical symptoms, structural abnormalities, and flexion angle in adults over 40, respectively. These findings suggest that IPFP may be a crucial imaging biomarker in early and middle knee osteoarthritis.
Collapse
Affiliation(s)
- Zhengming Wang
- Shi's Center of Orthopedics and Traumatology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China; Institute of Traumatology & Orthopedics, Shanghai Academy of Traditional Chinese Medicine, Shanghai, China
| | - Jiehang Lu
- Shi's Center of Orthopedics and Traumatology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China; Institute of Traumatology & Orthopedics, Shanghai Academy of Traditional Chinese Medicine, Shanghai, China
| | - Zhengyan Li
- Shi's Center of Orthopedics and Traumatology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China; Institute of Traumatology & Orthopedics, Shanghai Academy of Traditional Chinese Medicine, Shanghai, China
| | - Yuanyuan Wang
- Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Haiya Ge
- Shi's Center of Orthopedics and Traumatology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China; Institute of Traumatology & Orthopedics, Shanghai Academy of Traditional Chinese Medicine, Shanghai, China
| | - Min Zhang
- Shi's Center of Orthopedics and Traumatology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China; Institute of Traumatology & Orthopedics, Shanghai Academy of Traditional Chinese Medicine, Shanghai, China
| | - Rui Wang
- Guanghua Clinical Medical College, Shanghai University of Traditional Chinese Medicine, Shanghai, China; Department of Orthopedic Surgery, Shanghai Guanghua Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai, China
| | - Yong Gu
- Translational Medical Innovation Center, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang, Jiangsu, China
| | - Lipeng Ding
- Shi's Center of Orthopedics and Traumatology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China; Institute of Traumatology & Orthopedics, Shanghai Academy of Traditional Chinese Medicine, Shanghai, China
| | - Woxing Ren
- Shi's Center of Orthopedics and Traumatology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China; Institute of Traumatology & Orthopedics, Shanghai Academy of Traditional Chinese Medicine, Shanghai, China
| | - Zhibi Shen
- Shi's Center of Orthopedics and Traumatology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China; Institute of Traumatology & Orthopedics, Shanghai Academy of Traditional Chinese Medicine, Shanghai, China
| | - Guoqing Du
- Shi's Center of Orthopedics and Traumatology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yufeng Wu
- Zhongshan Hospital of Traditional Chinese Medicine Affiliated to Guangzhou University of Traditional Chinese Medicine, Zhongshan, Guangdong, China
| | - Hongsheng Zhan
- Shi's Center of Orthopedics and Traumatology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China; Institute of Traumatology & Orthopedics, Shanghai Academy of Traditional Chinese Medicine, Shanghai, China.
| |
Collapse
|
4
|
Ge H, Wang Z, Yang Z, Shi J, Lu J, Wang Y, Li Z, Du G, Shen Z, Zhan H. Exploring the optimal impact force for chronic skeletal muscle injury induced by drop-mass technique in rats. Front Physiol 2023; 14:1241187. [PMID: 37621764 PMCID: PMC10444991 DOI: 10.3389/fphys.2023.1241187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Accepted: 07/31/2023] [Indexed: 08/26/2023] Open
Abstract
Introduction: Skeletal muscle injuries are widespread in sports, traffic accidents and natural disasters and some of them with poor prognoses can lead to chronic skeletal muscle damage in the clinic. We induced a chronic skeletal muscle injury by controlling time and contusion force using an acute blunt trauma model that will help us better comprehend the pathological features of chronic skeletal muscle injury. Methods: Several levels of injury were induced by repeatedly striking in 5, 10, and 15 times the gastrocnemius muscle from the same height with 200 g weights. After injury, the markers of muscle injury were assessed at 2 and 4 weeks by serum elisa. Electron microscopy, histologic and immunohistochemical staining, and mRNA analysis were used to evaluate the ultrastructure, inflammation, extracellular matrix decomposition, and anabolism of injured muscle in 2 and 4 weeks. Results: All three different kinetic energies can result in skeletal muscle injuries. However, the injured skeletal muscles of rats in each group could not recover within 2 weeks. After 4 weeks, tissue self-repair and reconstruction caused the damage induced by 5 J kinetic energy to almost return to normal. In contrast, damage induced by 10 J kinetic energy displayed slight improvement compared to that at 2 weeks. Despite this, collagen fibers on the surface of the tissue were disorganized, directionally ambiguous, and intertwined with each other. Myofilaments within the tissue were also arranged disorderly, with blurry and broken Z-lines. Damage caused by 15 J kinetic energy was the most severe and displayed no improvements at 4 weeks compared to 2 weeks. At 4 weeks, IL-1β, IL-6, Collagen I, and Collagen III, MMP2 expressions in the 10 J group were lower than those at 2 weeks, showing a tendency towards injury stabilization. Conclusion: After 4 weeks of remodeling and repair, the acute skeletal muscle injury model induced by 10 J kinetic energy can stabilize pathological manifestations, inflammatory expression, and extracellular matrix synthesis and catabolism, making it an appropriate model for studying chronic skeletal muscle injuries caused by acute injury.
Collapse
Affiliation(s)
- Haiya Ge
- Shi’s Center of Orthopedics and Traumatology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Institute of Traumatology and Orthopedics, Shanghai Academy of Traditional Chinese Medicine, Shanghai, China
| | - Zhengming Wang
- Shi’s Center of Orthopedics and Traumatology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Institute of Traumatology and Orthopedics, Shanghai Academy of Traditional Chinese Medicine, Shanghai, China
| | - Zongrui Yang
- Shi’s Center of Orthopedics and Traumatology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Institute of Traumatology and Orthopedics, Shanghai Academy of Traditional Chinese Medicine, Shanghai, China
| | - Jinyu Shi
- Shi’s Center of Orthopedics and Traumatology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Institute of Traumatology and Orthopedics, Shanghai Academy of Traditional Chinese Medicine, Shanghai, China
| | - Jiehang Lu
- Shi’s Center of Orthopedics and Traumatology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Institute of Traumatology and Orthopedics, Shanghai Academy of Traditional Chinese Medicine, Shanghai, China
| | - Yuanyuan Wang
- Shi’s Center of Orthopedics and Traumatology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Institute of Traumatology and Orthopedics, Shanghai Academy of Traditional Chinese Medicine, Shanghai, China
| | - Zhengyan Li
- Shi’s Center of Orthopedics and Traumatology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Institute of Traumatology and Orthopedics, Shanghai Academy of Traditional Chinese Medicine, Shanghai, China
| | - Guoqing Du
- Shi’s Center of Orthopedics and Traumatology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Institute of Traumatology and Orthopedics, Shanghai Academy of Traditional Chinese Medicine, Shanghai, China
| | - Zhibi Shen
- Shi’s Center of Orthopedics and Traumatology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Institute of Traumatology and Orthopedics, Shanghai Academy of Traditional Chinese Medicine, Shanghai, China
| | - Hongsheng Zhan
- Shi’s Center of Orthopedics and Traumatology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Institute of Traumatology and Orthopedics, Shanghai Academy of Traditional Chinese Medicine, Shanghai, China
| |
Collapse
|
5
|
Rowland L, Smart B, Brown A, Dettorre GM, Gocho Y, Hunt J, Yang W, Yoshimura S, Reyes N, Du G, John A, Maxwell D, Stock W, Kornblau S, Relling MV, Inaba H, Pui CH, Bourquin JP, Karol SE, Mullighan CG, Evans WE, Yang JJ, Crews KR. Ex vivo Drug Sensitivity Imaging-based Platform for Primary Acute Lymphoblastic Leukemia Cells. Bio Protoc 2023; 13:e4731. [PMID: 37575398 PMCID: PMC10415213 DOI: 10.21769/bioprotoc.4731] [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: 01/30/2023] [Revised: 03/13/2023] [Accepted: 05/09/2023] [Indexed: 08/15/2023] Open
Abstract
Resistance of acute lymphoblastic leukemia (ALL) cells to chemotherapy, whether present at diagnosis or acquired during treatment, is a major cause of treatment failure. Primary ALL cells are accessible for drug sensitivity testing at the time of new diagnosis or at relapse, but there are major limitations with current methods for determining drug sensitivity ex vivo. Here, we describe a functional precision medicine method using a fluorescence imaging platform to test drug sensitivity profiles of primary ALL cells. Leukemia cells are co-cultured with mesenchymal stromal cells and tested with a panel of 40 anti-leukemia drugs to determine individual patterns of drug resistance and sensitivity ("pharmacotype"). This imaging-based pharmacotyping assay addresses the limitations of prior ex vivo drug sensitivity methods by automating data analysis to produce high-throughput data while requiring fewer cells and significantly decreasing the labor-intensive time required to conduct the assay. The integration of drug sensitivity data with genomic profiling provides a basis for rational genomics-guided precision medicine. Key features Analysis of primary acute lymphoblastic leukemia (ALL) blasts obtained at diagnosis from bone marrow aspirate or peripheral blood. Experiments are performed ex vivo with mesenchymal stromal cell co-culture and require four days to complete. This fluorescence imaging-based protocol enhances previous ex vivo drug sensitivity assays and improves efficiency by requiring fewer primary cells while increasing the number of drugs tested to 40. It takes approximately 2-3 h for sample preparation and processing and a 1.5-hour imaging time. Graphical overview.
Collapse
Affiliation(s)
- Lauren Rowland
- Department of Pharmacy and Pharmaceutical Sciences, St. Jude Children’s Research Hospital, Memphis, TN, USA
| | - Brandon Smart
- Department of Pharmacy and Pharmaceutical Sciences, St. Jude Children’s Research Hospital, Memphis, TN, USA
| | - Anthony Brown
- Department of Pharmacy and Pharmaceutical Sciences, St. Jude Children’s Research Hospital, Memphis, TN, USA
| | - Gino M. Dettorre
- Department of Pharmacy and Pharmaceutical Sciences, St. Jude Children’s Research Hospital, Memphis, TN, USA
| | - Yoshihiro Gocho
- Department of Pharmacy and Pharmaceutical Sciences, St. Jude Children’s Research Hospital, Memphis, TN, USA
| | - Jeremy Hunt
- Department of Pharmacy and Pharmaceutical Sciences, St. Jude Children’s Research Hospital, Memphis, TN, USA
| | - Wenjian Yang
- Department of Pharmacy and Pharmaceutical Sciences, St. Jude Children’s Research Hospital, Memphis, TN, USA
| | - Satoshi Yoshimura
- Department of Pharmacy and Pharmaceutical Sciences, St. Jude Children’s Research Hospital, Memphis, TN, USA
| | - Noemi Reyes
- Department of Pharmacy and Pharmaceutical Sciences, St. Jude Children’s Research Hospital, Memphis, TN, USA
| | - Guoqing Du
- Department of Pharmacy and Pharmaceutical Sciences, St. Jude Children’s Research Hospital, Memphis, TN, USA
| | - August John
- Department of Pharmacy and Pharmaceutical Sciences, St. Jude Children’s Research Hospital, Memphis, TN, USA
| | - Dylan Maxwell
- Department of Pharmacy and Pharmaceutical Sciences, St. Jude Children’s Research Hospital, Memphis, TN, USA
| | - Wendy Stock
- Hematopoiesis and Hematological Malignancies Program, University of Chicago, Chicago, IL, USA
| | - Steven Kornblau
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Mary V. Relling
- Department of Pharmacy and Pharmaceutical Sciences, St. Jude Children’s Research Hospital, Memphis, TN, USA
| | - Hiroto Inaba
- Department of Oncology, St. Jude Children’s Research Hospital, Memphis, TN, USA
| | - Ching-Hon Pui
- Department of Oncology, St. Jude Children’s Research Hospital, Memphis, TN, USA
| | - Jean-Pierre Bourquin
- Department of Oncology and Children’s Research Center, University Children’s Hospital Zurich, Zurich, Switzerland
| | - Seth E. Karol
- Department of Oncology, St. Jude Children’s Research Hospital, Memphis, TN, USA
| | - Charles G. Mullighan
- Department of Pathology, St. Jude Children’s Research Hospital, Memphis, TN, USA
| | - William E. Evans
- Department of Pharmacy and Pharmaceutical Sciences, St. Jude Children’s Research Hospital, Memphis, TN, USA
| | - Jun J. Yang
- Department of Pharmacy and Pharmaceutical Sciences, St. Jude Children’s Research Hospital, Memphis, TN, USA
| | - Kristine R. Crews
- Department of Pharmacy and Pharmaceutical Sciences, St. Jude Children’s Research Hospital, Memphis, TN, USA
| |
Collapse
|
6
|
Yoshimura S, Panetta JC, Hu J, Li L, Gocho Y, Du G, Umezawa A, Karol SE, Pui CH, Mullighan CG, Konopleva M, Stock W, Teachey DT, Jain N, Yang JJ. Preclinical pharmacokinetic and pharmacodynamic evaluation of dasatinib and ponatinib for the treatment of T-cell acute lymphoblastic leukemia. Leukemia 2023:10.1038/s41375-023-01900-5. [PMID: 37076694 DOI: 10.1038/s41375-023-01900-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 04/04/2023] [Accepted: 04/06/2023] [Indexed: 04/21/2023]
Abstract
LCK is a novel therapeutic target in ~40% of T-cell acute lymphoblastic leukemia (T-ALL), and dasatinib and ponatinib can act as LCK inhibitors with therapeutic effects. We herein report a comprehensive preclinical pharmacokinetic and pharmacodynamic evaluation of dasatinib and ponatinib in LCK-activated T-ALL. In 51 human T-ALL cases, these two drugs showed similar patterns of cytotoxic activity, with ponatinib being slightly more potent. Given orally in mice, ponatinib was associated with slower clearance with a longer Tmax and higher AUC0-24 h, although maximum pLCK inhibition was comparable between the two drugs. After establishing the exposure-to-response models, we simulated the steady-state pLCK inhibitory effects of each drug at currently approved dosages in humans: dasatinib at 140 mg and ponatinib at 45 mg once daily are both sufficient to achieve >50% pLCK inhibition for 13.0 and 13.9 h/day, respectively, comparable to pharmacodynamic profiles of these agents in BCR::ABL1 leukemias. Moreover, we developed a dasatinib-resistant T-ALL cell line model with LCK T316I mutation, in which ponatinib retained partial activity against LCK. In conclusion, we described the pharmacokinetic and pharmacodynamic profiles of dasatinib and ponatinib as LCK inhibitors in T-ALL, providing critical data for the development of human trials of these agents.
Collapse
Affiliation(s)
- Satoshi Yoshimura
- Department of Pharmacy and Pharmaceutical Sciences, St. Jude Children's Research Hospital, Memphis, TN, USA
- Department of Advanced Pediatric Medicine, Tohoku University School of Medicine, Tokyo, Japan
| | - John C Panetta
- Department of Pharmacy and Pharmaceutical Sciences, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Jianzhong Hu
- Department of Pharmacy and Pharmaceutical Sciences, St. Jude Children's Research Hospital, Memphis, TN, USA
- Amgen, 1 Amgen Center Drive, Thousand Oaks, CA, USA
| | - Lie Li
- Department of Pharmacy and Pharmaceutical Sciences, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Yoshihiro Gocho
- Children's Cancer Center, National Center for Child Health and Development, Tokyo, Japan
| | - Guoqing Du
- Department of Pharmacy and Pharmaceutical Sciences, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Akihiro Umezawa
- Department of Advanced Pediatric Medicine, Tohoku University School of Medicine, Tokyo, Japan
| | - Seth E Karol
- Department of Oncology, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Ching-Hon Pui
- Department of Oncology, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Charles G Mullighan
- Department of Pathology, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Marina Konopleva
- Department of Oncology and Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Wendy Stock
- Department of Medicine Section of Hematology-Oncology, University of Chicago, Chicago, IL, USA
| | - David T Teachey
- Department of Pediatrics, University of Pennsylvania, Philadelphia, PA, USA
| | - Nitin Jain
- Department of Leukemia, Division of Cancer Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Jun J Yang
- Department of Pharmacy and Pharmaceutical Sciences, St. Jude Children's Research Hospital, Memphis, TN, USA.
- Department of Oncology, St. Jude Children's Research Hospital, Memphis, TN, USA.
| |
Collapse
|
7
|
Wright S, Hu J, Wang H, Hyle J, Zhang Y, Du G, Konopleva MY, Kornblau SM, Djekidel MN, Rosikiewicz W, Xu B, Lu R, Yang JJ, Li C. Interrogating bromodomain inhibitor resistance in KMT2A-rearranged leukemia through combinatorial CRISPR screens. Proc Natl Acad Sci U S A 2023; 120:e2220134120. [PMID: 37036970 PMCID: PMC10120025 DOI: 10.1073/pnas.2220134120] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/12/2023] Open
Abstract
Bromo- and extra-terminal domain inhibitors (BETi) have exhibited therapeutic activities in many cancers. However, the mechanisms controlling BETi response and resistance are not well understood. We conducted genome-wide loss-of-function CRISPR screens using BETi-treated KMT2A-rearranged (KMT2A-r) cell lines. We revealed that Speckle-type POZ protein (SPOP) gene (Speckle Type BTB/POZ Protein) deficiency caused significant BETi resistance, which was further validated in cell lines and xenograft models. Proteomics analysis and a kinase-vulnerability CRISPR screen indicated that cells treated with BETi are sensitive to GSK3 perturbation. Pharmaceutical inhibition of GSK3 reversed the BETi-resistance phenotype. Based on this observation, a combination therapy regimen inhibiting both BET and GSK3 was developed to impede KMT2A-r leukemia progression in patient-derived xenografts in vivo. Our results revealed molecular mechanisms underlying BETi resistance and a promising combination treatment regimen of ABBV-744 and CHIR-98014 by utilizing unique ex vivo and in vivo KMT2A-r PDX models.
Collapse
Affiliation(s)
- Shaela Wright
- Department of Tumor Cell Biology, St. Jude Children's Research Hospital, Memphis, TN 38105
| | - Jianzhong Hu
- Department of Pharmaceutical Sciences, St. Jude Children's Research Hospital, Memphis, TN 38105
| | - Hong Wang
- Center for Proteomics and Metabolomics, St. Jude Children's Research Hospital, Memphis, TN 38105
| | - Judith Hyle
- Department of Tumor Cell Biology, St. Jude Children's Research Hospital, Memphis, TN 38105
| | - Yang Zhang
- Department of Tumor Cell Biology, St. Jude Children's Research Hospital, Memphis, TN 38105
| | - Guoqing Du
- Department of Pharmaceutical Sciences, St. Jude Children's Research Hospital, Memphis, TN 38105
| | - Marina Y Konopleva
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX 77030
| | - Steven M Kornblau
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX 77030
| | | | - Wojciech Rosikiewicz
- Center for Applied Bioinformatics, St. Jude Children's Research Hospital, Memphis, TN 38105
| | - Beisi Xu
- Center for Applied Bioinformatics, St. Jude Children's Research Hospital, Memphis, TN 38105
| | - Rui Lu
- Division of Hematology/Oncology, O'Neal Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, AL 35294
| | - Jun J Yang
- Department of Pharmaceutical Sciences, St. Jude Children's Research Hospital, Memphis, TN 38105
- Department of Oncology, St. Jude Children's Research Hospital, Memphis, TN 38105
| | - Chunliang Li
- Department of Tumor Cell Biology, St. Jude Children's Research Hospital, Memphis, TN 38105
| |
Collapse
|
8
|
Zheng H, Xiao Z, Luo S, Wu S, Huang C, Hong T, He Y, Guo Y, Du G. Improve follicular thyroid carcinoma diagnosis using computer aided diagnosis system on ultrasound images. Front Oncol 2022; 12:939418. [PMID: 36465352 PMCID: PMC9709400 DOI: 10.3389/fonc.2022.939418] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Accepted: 11/01/2022] [Indexed: 08/15/2023] Open
Abstract
OBJECTIVE We aim to leverage deep learning to develop a computer aided diagnosis (CAD) system toward helping radiologists in the diagnosis of follicular thyroid carcinoma (FTC) on thyroid ultrasonography. METHODS A dataset of 1159 images, consisting of 351 images from 138 FTC patients and 808 images from 274 benign follicular-pattern nodule patients, was divided into a balanced and unbalanced dataset, and used to train and test the CAD system based on a transfer learning of a residual network. Six radiologists participated in the experiments to verify whether and how much the proposed CAD system helps to improve their performance. RESULTS On the balanced dataset, the CAD system achieved 0.892 of area under the ROC (AUC). The accuracy, recall, precision, and F1-score of the CAD method were 84.66%, 84.66%, 84.77%, 84.65%, while those of the junior and senior radiologists were 56.82%, 56.82%, 56.95%, 56.62% and 64.20%, 64.20%, 64.35%, 64.11% respectively. With the help of CAD, the metrics of the junior and senior radiologists improved to 62.81%, 62.81%, 62.85%, 62.79% and 73.86%, 73.86%, 74.00%, 73.83%. The results almost repeated on the unbalanced dataset. The results show the proposed CAD approach can not only achieve better performance than radiologists, but also significantly improve the radiologists' diagnosis of FTC. CONCLUSIONS The performances of the CAD system indicate it is a reliable reference for preoperative diagnosis of FTC, and might assist the development of a fast, accessible screening method for FTC.
Collapse
Affiliation(s)
- Huan Zheng
- Department of Ultrasound, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Zebin Xiao
- Department of Pathology, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Siwei Luo
- Department of Ultrasound, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Suqing Wu
- Department of Ultrasound, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Chuxin Huang
- Department of Ultrasound, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Tingting Hong
- Department of Ultrasound, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Yan He
- Department of Ultrasound, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Yanhui Guo
- Department of Computer Science, University of Illinois Springfield, Springfield, IL, United States
| | - Guoqing Du
- Department of Ultrasound, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| |
Collapse
|
9
|
Pan Z, Du G, Li G, Wu D, Chen X, Geng Z. Apolipoprotein H: a novel regulator of fat accumulation in duck myoblasts. J Anim Sci Technol 2022; 64:1199-1214. [PMID: 36812035 PMCID: PMC9890340 DOI: 10.5187/jast.2022.e60] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 07/07/2022] [Accepted: 07/09/2022] [Indexed: 12/14/2022]
Abstract
Apolipoprotein H (APOH) primarily engages in fat metabolism and inflammatory disease response. This study aimed to investigate the effects of APOH on fat synthesis in duck myoblasts (CS2s) by APOH overexpression and knockdown. CS2s overexpressing APOH showed enhanced triglyceride (TG) and cholesterol (CHOL) contents and elevated the mRNA and protein expression of AKT serine/threonine kinase 1 (AKT1), ELOVL fatty acid elongase 6 (ELOVL6), and acetyl-CoA carboxylase 1 (ACC1) while reducing the expression of protein kinase AMP-activated catalytic subunit alpha 1 (AMPK), peroxisome proliferator activated receptor gamma (PPARG), acyl-CoA synthetase long chain family member 1 (ACSL1), and lipoprotein lipase (LPL). The results showed that knockdown of APOH in CS2s reduced the content of TG and CHOL, reduced the expression of ACC1, ELOVL6, and AKT1, and increased the gene and protein expression of PPARG, LPL, ACSL1, and AMPK. Our results showed that APOH affected lipid deposition in myoblasts by inhibiting fatty acid beta-oxidation and promoting fatty acid biosynthesis by regulating the expression of the AKT/AMPK pathway. This study provides the necessary basic information for the role of APOH in fat accumulation in duck myoblasts for the first time and enables researchers to study the genes related to fat deposition in meat ducks in a new direction.
Collapse
Affiliation(s)
- Ziyi Pan
- College of Animal Science and Technology,
Anhui Agricultural University, Hefei 230036, China
| | - Guoqing Du
- College of Animal Science and Technology,
Anhui Agricultural University, Hefei 230036, China
| | - Guoyu Li
- College of Animal Science and Technology,
Anhui Agricultural University, Hefei 230036, China
| | - Dongsheng Wu
- College of Animal Science and Technology,
Anhui Agricultural University, Hefei 230036, China
| | - Xingyong Chen
- College of Animal Science and Technology,
Anhui Agricultural University, Hefei 230036, China,Corresponding author: Xingyong Chen,
College of Animal Science and Technology, Anhui Agricultural University, Hefei
230036, China. Tel: +86-15605510863, E-mail:
| | - Zhaoyu Geng
- College of Animal Science and Technology,
Anhui Agricultural University, Hefei 230036, China,Corresponding author: Xingyong Chen,
College of Animal Science and Technology, Anhui Agricultural University, Hefei
230036, China. Tel: +86-15605510863, E-mail:
| |
Collapse
|
10
|
Liu Y, Wang Y, Wang Y, Xie Y, Cui Y, Feng S, Yao M, Qiu B, Shen W, Chen D, Du G, Chen X, Liu Z, Li Z, Yang X, Liang C, Wu L. Early prediction of treatment response to neoadjuvant chemotherapy based on longitudinal ultrasound images of HER2-positive breast cancer patients by Siamese multi-task network: A multicentre, retrospective cohort study. EClinicalMedicine 2022; 52:101562. [PMID: 35928032 PMCID: PMC9343415 DOI: 10.1016/j.eclinm.2022.101562] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [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: 05/01/2022] [Revised: 06/22/2022] [Accepted: 06/27/2022] [Indexed: 12/01/2022] Open
Abstract
BACKGROUND Early prediction of treatment response to neoadjuvant chemotherapy (NACT) in patients with human epidermal growth factor receptor 2 (HER2)-positive breast cancer can facilitate timely adjustment of treatment regimens. We aimed to develop and validate a Siamese multi-task network (SMTN) for predicting pathological complete response (pCR) based on longitudinal ultrasound images at the early stage of NACT. METHODS In this multicentre, retrospective cohort study, a total of 393 patients with biopsy-proven HER2-positive breast cancer were retrospectively enrolled from three hospitals in china between December 16, 2013 and March 05, 2021, and allocated into a training cohort and two external validation cohorts. Patients receiving full cycles of NACT and with surgical pathological results available were eligible for inclusion. The key exclusion criteria were missing ultrasound images and/or clinicopathological characteristics. The proposed SMTN consists of two subnetworks that could be joined at multiple layers, which allowed for the integration of multi-scale features and extraction of dynamic information from longitudinal ultrasound images before and after the first /second cycles of NACT. We constructed the clinical model as a baseline using multivariable logistic regression analysis. Then the performance of SMTN was evaluated and compared with the clinical model. FINDINGS The training cohort, comprising 215 patients, were selected from Yunnan Cancer Hospital. The two independent external validation cohorts, comprising 95 and 83 patients, were selected from Guangdong Provincial People's Hospital, and Shanxi Cancer Hospital, respectively. The SMTN yielded an area under the receiver operating characteristic curve (AUC) values of 0.986 (95% CI: 0.977-0.995), 0.902 (95%CI: 0.856-0.948), and 0.957 (95%CI: 0.924-0.990) in the training cohort and two external validation cohorts, respectively, which were significantly higher than that those of the clinical model (AUC: 0.524-0.588, P all < 0.05). The AUCs values of the SMTN within the anti-HER2 therapy subgroups were 0.833-0.972 in the two external validation cohorts. Moreover, 272 of 279 (97.5%) non-pCR patients (159 of 160 (99.4%), 53 of 54 (98.1%), and 60 of 65 (92.3%) in the training and two external validation cohorts, respectively) were successfully identified by the SMTN, suggesting that they could benefit from regime adjustment at the early-stage of NACT. INTERPRETATION The SMTN was able to predict pCR in the early-stage of NACT for HER2-positive breast cancer patients, which could guide clinicians in adjusting treatment regimes. FUNDING Key-Area Research and Development Program of Guangdong Province (No.2021B0101420006); National Natural Science Foundation of China (No.82071892, 82171920); Guangdong Provincial Key Laboratory of Artificial Intelligence in Medical Image Analysis and Application (No.2022B1212010011); the National Science Foundation for Young Scientists of China (No.82102019, 82001986); Project Funded by China Postdoctoral Science Foundation (No.2020M682643); the Outstanding Youth Science Foundation of Yunnan Basic Research Project (202101AW070001); Scientific research fund project of Department of Education of Yunnan Province(2022J0249). Science and technology Projects in Guangzhou (202201020001;202201010513); High-level Hospital Construction Project (DFJH201805, DFJHBF202105).
Collapse
Affiliation(s)
- Yu Liu
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, Guangdong, China
- Department of Radiology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, 106 Zhangshan Er Road, Guangzhou 510080, China
- Guangdong Provincial Key Laboratory of Artificial Intelligence in Medical Image Analysis and Application, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Ying Wang
- Department of Medical Ultrasonics, the First Affiliated Hospital of Guangzhou medical University, 151 Yanjiang West Road, 510120, China
| | - Yuxiang Wang
- Department of Ultrasound, Shanxi Cancer Hospital, Shanxi Medical University, Taiyuan, 030013, China
| | - Yu Xie
- Department of Radiology, the Third Affiliated Hospital of Kunming Medical University, Yunnan Cancer Hospital, Yunnan Cancer Center, Kunming, 650118, China
| | - Yanfen Cui
- Department of Radiology, Shanxi Cancer Hospital, Shanxi Medical University, Taiyuan, 030013, China
| | - Senwen Feng
- Department of General Surgery, Shenzhen YanTian district people's hospital (group), Shenzhen, 518081, China
| | - Mengxia Yao
- Department of Ultrasound, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, 106 Zhangshan Er Road, Guangzhou 510080, China
| | - Bingjiang Qiu
- Department of Radiology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, 106 Zhangshan Er Road, Guangzhou 510080, China
- Guangdong Provincial Key Laboratory of Artificial Intelligence in Medical Image Analysis and Application, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Wenqian Shen
- Department of Ultrasound, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, 106 Zhangshan Er Road, Guangzhou 510080, China
| | - Dong Chen
- Department of Medical Ultrasound, The Third Affiliated Hospital of Kunming Medical University, Yunnan Cancer Hospital, Yunnan Cancer Center, Kunming 650118, China
| | - Guoqing Du
- Department of Ultrasound, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, 106 Zhangshan Er Road, Guangzhou 510080, China
| | - Xin Chen
- Department of Radiology, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, 1 Panfu Road, Guangzhou, 510180, China
| | - Zaiyi Liu
- Department of Radiology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, 106 Zhangshan Er Road, Guangzhou 510080, China
- Guangdong Provincial Key Laboratory of Artificial Intelligence in Medical Image Analysis and Application, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Zhenhui Li
- Department of Radiology, the Third Affiliated Hospital of Kunming Medical University, Yunnan Cancer Hospital, Yunnan Cancer Center, Kunming, 650118, China
- Corresponding author at: Department of Radiology, the Third Affiliated Hospital of Kunming Medical University, Yunnan Cancer Hospital, Yunnan Cancer Center, Kunming, 650118, China.
| | - Xiaotang Yang
- Department of Radiology, Shanxi Cancer Hospital, Shanxi Medical University, Taiyuan, 030013, China
- Corresponding author at: Department of Radiology, Shanxi Cancer Hospital, Shanxi Medical University, Taiyuan, 030013, China.
| | - Changhong Liang
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, Guangdong, China
- Department of Radiology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, 106 Zhangshan Er Road, Guangzhou 510080, China
- Guangdong Provincial Key Laboratory of Artificial Intelligence in Medical Image Analysis and Application, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
- Corresponding author at: Department of Radiology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, 106 Zhangshan Er Road, Guangzhou 510080, China.
| | - Lei Wu
- Department of Radiology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, 106 Zhangshan Er Road, Guangzhou 510080, China
- Guangdong Provincial Key Laboratory of Artificial Intelligence in Medical Image Analysis and Application, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
- Corresponding author at: Department of Radiology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, 106 Zhangshan Er Road, Guangzhou 510080, China.
| |
Collapse
|
11
|
Zhou H, Zhang Z, Yang S, Gong X, Liu Y, Du G, Chen J. Logistic regression analysis of risk factors for intra-abdominal hypertension after giant ventral hernia repair: a retrospective cohort study. Hernia 2022; 27:305-309. [PMID: 36169738 DOI: 10.1007/s10029-022-02667-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: 05/18/2022] [Accepted: 08/17/2022] [Indexed: 11/26/2022]
Abstract
BACKGROUND Intra-abdominal hypertension (IAH) is a classical complication after giant ventral hernia surgery and may lead to abdominal compartment syndrome (ACS). Assessment of risk factors and prevention of IAH/ACS are essential for hernia surgeons. METHODS We performed a retrospective study including 58 giant ventral hernia patients in our center between Jan 1, 2017, and Mar 1, 2022, we recorded age, gender, chronic obstructive pulmonary disease (COPD), coronary heart disease (CHD), hypertension, type 2 diabetes mellitus (T2DM), hypoproteinemia, body mass index (BMI), the ratio of hernia sac volume to abdominal cavity volume (HSV/ACV), defect width, tension reduction procedure (TRP), positive fluid balance (PFB) and IAH of these patients and analyzed the data using univariate and multivariate logistic regression to screen the risk factors for IAH after surgery. RESULTS The multivariate analysis showed that HSV/ACV ≥ 25%, hypoproteinemia, and PFB were independent risk factors for the occurrence of IAH after giant ventral hernia repair (P = 0.025, 0.016, 0.017, respectively). We did not find any correlation between postoperative IAH and the patient's age, gender, COPD, CHD, hypertension, T2DM, BMI, defect width, TRP, and PFB. CONCLUSION Identifying risk factors is of great significance for the early identification and prevention of IAH/ACS. We found that HSV/ACV ≥ 25%, hypoproteinemia, and PFB were independent risk factors for IAH after giant ventral hernia repair.
Collapse
Affiliation(s)
- H Zhou
- The Third Clinical Medical School of Capital Medical University, 8 Gongren Tiyuchang Nanlu, Chaoyang District, Beijing, 100020, China
| | - Z Zhang
- The Third Clinical Medical School of Capital Medical University, 8 Gongren Tiyuchang Nanlu, Chaoyang District, Beijing, 100020, China
| | - S Yang
- Department of Hernia and Abdominal Wall Surgery, Beijing Chaoyang Hospital, No. 5 JingYuan Road, Shijingshan District, Beijing, 100043, China
| | - X Gong
- Department of Radiology, Beijing Chao-Yang Hospital, No. 5 JingYuan Road, Shijingshan District, Beijing, 100043, China
| | - Y Liu
- Department of Hernia and Abdominal Wall Surgery, Beijing Chaoyang Hospital, No. 5 JingYuan Road, Shijingshan District, Beijing, 100043, China
| | - G Du
- Department of Radiology, Lin Yi Geriatric Hospital, Lanshan District, Linyi, 276003, China
| | - J Chen
- The Third Clinical Medical School of Capital Medical University, 8 Gongren Tiyuchang Nanlu, Chaoyang District, Beijing, 100020, China.
- Department of Hernia and Abdominal Wall Surgery, Beijing Chaoyang Hospital, No. 5 JingYuan Road, Shijingshan District, Beijing, 100043, China.
| |
Collapse
|
12
|
Wang C, Liu C, Shi J, Li H, Jiang S, Zhao P, Zhang M, Du G, Fu S, Li S, Wang Z, Wang X, Gao F, Sun P, Tian J. Nicotine exacerbates endothelial dysfunction and drives atherosclerosis via extracellular vesicle-miRNA. Cardiovasc Res 2022; 119:729-742. [PMID: 36006370 DOI: 10.1093/cvr/cvac140] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 07/23/2022] [Accepted: 08/01/2022] [Indexed: 11/15/2022] Open
Abstract
AIMS Nicotine, a major component of tobacco, is an important factor contributing to atherosclerosis. However, the molecular mechanisms underlying the link between nicotine and atherosclerosis are unclear. As extracellular vesicles (EVs) are involved in intercellular communication in atherosclerosis, we investigated whether their influence on arterial pathophysiology under nicotine stimulation. METHODS and results: EVs from the serum of smokers (smoker-EVs) were significantly increased and exacerbated endothelial inflammation as well as apoptosis according to functional studies. Meanwhile, inhibition of EVs blunted the nicotine-induced atherosclerosis progression, and injection of nicotine-induced EVs promoted atherosclerosis progression in ApoE-/- mice. Furthermore, quantitative reverse transcription-polymerase chain reaction analysis revealed a remarkable increase in miR-155 levels in smoker-EVs, which was correlated with carotid plaque formation in patients measured by ultrasound imaging. Moreover, CD14 levels were significantly increased in EVs from smokers (representing EVs derived from monocytes), indicating that monocytes are an important source of smoker-EVs. DNA methylation and the transcription factor HIF1α may contribute to increased miR-155 levels in monocytes, as assessed with bisulfite conversion sequencing and chromatin immunoprecipitation. Mechanistically, EVs encapsulated miR-155 induced endothelial cell dysfunction by directedly targeting BCL2, MCL1, TIMP3, BCL6 and activating NF-κB pathway, as verified in a series of molecular and biological experiments. Injecting EVs from nicotine-stimulated monocytes promoted plaque formation and triggered vascular endothelial injury in ApoE-/- mice, whereas inhibition of miR-155 weakened this effect. CONCLUSION Our findings revealed an EV-dependent mechanism of nicotine-aggravated atherosclerosis. Accordingly, we propose an EV-based intervention strategy for atherosclerosis management. TRANSLATIONAL PERSPECTIVE Based on the findings of our study, strategies preventing or blocking the production of abnormal EVs, particularly monocyte EVs, after nicotine stimulation may protect against atherosclerosis. Moreover, detection of circulating EVs-carried miR-155 expression may reveal the progression of atherosclerosis. On the molecular level, blocking miR-155 biogenesis, which constituted a novel therapeutic approach, may protect against nicotine aggravating atherosclerosis.
Collapse
Affiliation(s)
- Chao Wang
- Department of Ultrasound, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China.,The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China
| | - Cong Liu
- Department of Ultrasound, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Jiaxin Shi
- Department of Ultrasound, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Hairu Li
- Department of Ultrasound, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China.,The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China
| | - Shuangquan Jiang
- Department of Ultrasound, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Peng Zhao
- Department of Ultrasound, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Maomao Zhang
- The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China.,Department of Cardiology, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Guoqing Du
- Department of Ultrasound, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Shuai Fu
- Department of Ultrasound, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China.,The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China
| | - Shouqiang Li
- Department of Ultrasound, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China.,The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China
| | - Zhuo Wang
- Department of Ultrasound, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China.,The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China
| | - Xiaokun Wang
- Department of Neurology, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Fei Gao
- Department of Ultrasound, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Ping Sun
- Department of Ultrasound, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China.,The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China
| | - Jiawei Tian
- Department of Ultrasound, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
| |
Collapse
|
13
|
Hu J, Jarusiewicz J, Du G, Nishiguchi G, Yoshimura S, Panetta JC, Li Z, Min J, Yang L, Chepyala D, Actis M, Reyes N, Smart B, Pui CH, Teachey DT, Rankovic Z, Yang JJ. Preclinical evaluation of proteolytic targeting of LCK as a therapeutic approach in T cell acute lymphoblastic leukemia. Sci Transl Med 2022; 14:eabo5228. [PMID: 36001679 PMCID: PMC9730446 DOI: 10.1126/scitranslmed.abo5228] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
T cell acute lymphoblastic leukemia (T-ALL) is an aggressive hematological malignancy, and there is an unmet need for targeted therapies, especially for patients with relapsed disease. We have recently identified pre-T cell receptor and lymphocyte-specific protein tyrosine kinase (LCK) signaling as a common therapeutic vulnerability in T-ALL. LCK inhibitor dasatinib showed efficacy against T-ALL in preclinical studies and in patients with T-ALL; however, this is transient in most cases. Leveraging the proteolysis targeting chimera (PROTAC) approach, we developed a series of LCK degraders using dasatinib as an LCK ligand and phenyl-glutarimide as a cereblon-directing moiety. Our lead compound SJ11646 exhibited marked efficiency in cereblon-mediated LCK degradation in T-ALL cells. Relative to dasatinib, SJ11646 showed up to three orders of magnitude higher cytotoxicity in LCK-activated T-ALL cell lines and primary leukemia samples in vitro, with drastically prolonged suppression of LCK signaling. In vivo pharmacokinetic and pharmacodynamic profiling indicated a 630% increase in the duration of LCK suppression by SJ11646 over dasatinib in patient-derived xenograft models of T-ALL, which translated into its extended leukemia-free survival over dasatinib in vivo. Last, SJ11646 retained a high binding affinity to 51 human kinases, particularly ABL1, KIT, and DDR1, all of which are known drug targets in other cancers. Together, our dasatinib-based phenyl-glutarimide PROTACs are promising therapeutic agents in T-ALL and valuable tools for developing degradation-based therapeutics for other cancers.
Collapse
Affiliation(s)
- Jianzhong Hu
- Department of Pharmacy and Pharmaceutical Sciences, St. Jude Children’s Research Hospital, Memphis, TN, 38105, USA
| | - Jamie Jarusiewicz
- Department of Chemical Biology & Therapeutics, St. Jude Children’s Research Hospital; Memphis, TN, 38105, USA
| | - Guoqing Du
- Department of Pharmacy and Pharmaceutical Sciences, St. Jude Children’s Research Hospital, Memphis, TN, 38105, USA
| | - Gisele Nishiguchi
- Department of Chemical Biology & Therapeutics, St. Jude Children’s Research Hospital; Memphis, TN, 38105, USA
| | - Satoshi Yoshimura
- Department of Pharmacy and Pharmaceutical Sciences, St. Jude Children’s Research Hospital, Memphis, TN, 38105, USA
| | - John C. Panetta
- Department of Pharmacy and Pharmaceutical Sciences, St. Jude Children’s Research Hospital, Memphis, TN, 38105, USA
| | - Zhenhua Li
- Department of Pharmacy and Pharmaceutical Sciences, St. Jude Children’s Research Hospital, Memphis, TN, 38105, USA
| | - Jaeki Min
- Department of Chemical Biology & Therapeutics, St. Jude Children’s Research Hospital; Memphis, TN, 38105, USA
| | - Lei Yang
- Department of Chemical Biology & Therapeutics, St. Jude Children’s Research Hospital; Memphis, TN, 38105, USA
| | - Divyabharathi Chepyala
- Department of Chemical Biology & Therapeutics, St. Jude Children’s Research Hospital; Memphis, TN, 38105, USA
| | - Marisa Actis
- Department of Chemical Biology & Therapeutics, St. Jude Children’s Research Hospital; Memphis, TN, 38105, USA
| | - Noemi Reyes
- Department of Pharmacy and Pharmaceutical Sciences, St. Jude Children’s Research Hospital, Memphis, TN, 38105, USA
| | - Brandon Smart
- Department of Pharmacy and Pharmaceutical Sciences, St. Jude Children’s Research Hospital, Memphis, TN, 38105, USA
| | - Ching-Hon Pui
- Department of Oncology, St. Jude Children’s Research Hospital, Memphis, TN, 38105, USA
| | - David T. Teachey
- Department of Pediatrics, University of Pennsylvania, Philadelphia, Pennsylvania, 19104, USA
| | - Zoran Rankovic
- Department of Chemical Biology & Therapeutics, St. Jude Children’s Research Hospital; Memphis, TN, 38105, USA,,Correspondence to: Jun J. Yang Ph.D., Member, Department of Pharmacy and Pharmaceutical Sciences, Department of Oncology, ; Zoran Rankovic Ph.D., Director, CBT Chemistry Centers, Department of Chemical Biology & Therapeutics, ; St. Jude Children’s Research Hospital, 262 Danny Thomas Pl., Memphis, TN 38105
| | - Jun J. Yang
- Department of Pharmacy and Pharmaceutical Sciences, St. Jude Children’s Research Hospital, Memphis, TN, 38105, USA,,Department of Oncology, St. Jude Children’s Research Hospital, Memphis, TN, 38105, USA,,Correspondence to: Jun J. Yang Ph.D., Member, Department of Pharmacy and Pharmaceutical Sciences, Department of Oncology, ; Zoran Rankovic Ph.D., Director, CBT Chemistry Centers, Department of Chemical Biology & Therapeutics, ; St. Jude Children’s Research Hospital, 262 Danny Thomas Pl., Memphis, TN 38105
| |
Collapse
|
14
|
Hu J, Jarusiewicz J, Min J, Yang L, Chepyala D, Actis M, Du G, Smart B, Maxwell D, Xie B, Yoshimura S, Peng J, Teachey DT, Rankovic Z, Yang JJ. Abstract 423: Induced proximity and proteolytic targeting of LCK as a novel therapeutic approach in T-cell leukemia. Cancer Res 2022. [DOI: 10.1158/1538-7445.am2022-423] [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: 11/16/2022]
Abstract
Abstract
T-cell acute lymphoblastic leukemia (T-ALL) is an aggressive cancer, with a particularly dismal prognosis in patients with relapsed diseases. Our group recently discovered LCK dependency as a therapeutic vulnerability in 33% of T-ALL and LCK inhibitor dasatinib exhibited strong efficacy in vitro and in vivo (Nat Cancer 2, 284, 2021). However, the transient LCK inhibition by dasatinib resulted in only partial responses, and novel agents are needed to suppress LCK signaling in T-ALL in a sustained fashion to achieve long-term efficacy. We synthesized a set of proteolytic targeting chimeras (PROTACs) that bring LCK to cereblon (CRBN) E3 ligase for ubiquitination and degradation. LCK-PROTACs showed extremely high anti-leukemia sensitivity, i.e., up to 1,561.3 fold increase over dasatinib in LCK-activated T-ALL cell line. Complete LCK degradation was induced by most LCK-PROTACs. Based on solubility, permeability, stability, and anti-leukemia effects in vitro, we prioritized SJ001011646 for further evaluations. SJ001011646 induced 50% LCK degradation at the concentration at ~0.001nM, with superior cytotoxic effects in patient-derived primary T-ALL samples compared to dasatinib. In addition, we confirmed the formation of ternary complex of LCK, SJ001011646, and CRBN, using the AlphaLISA assay. In a wash-out experiment, LCK-dependent T-ALL cells were exposed to SJ001011646 or dasatinib for 18 hours and then monitored for viability recovery. Both dasatinib and SJ001011646 led to dramatic growth inhibition within 2 days. While dasatinib-treated cells started to recover 96 hours after drug removal, cells treated with SJ001011646 failed to recover even after 240 hours. To systematically identify therapeutic targets of SJ001011646, we performed proteomic profiling of T-ALL cells before and after drug treatment in vitro. Overall, 126,670 unique peptides were identified and mapped to 10,158 proteins, of which LCK was most significantly reduced by PROTAC. In parallel, kinome-binding profiling confirmed LCK as a primary target of SJ001011646. Finally, we explored pharmacokinetic and pharmacodynamic properties of SJ001011646 in vivo, using patient-derived xenograft models of T-ALL. Given at the same dosage level as a single injection, SJ001011646 showed 367% increase in the duration of LCK suppression compared to dasatinib. Taken together, we described the development and preclinical evaluation of LCK-targeting PROTACs in T-ALL. Inducing proximity to CRBN and therefore degradation, these agents can produce sustained LCK suppression with much improved anti-leukemia efficacy than small molecule inhibitors, and are therefore promising novel therapeutic agents in T-ALL.
Citation Format: Jianzhong Hu, Jamie Jarusiewicz, Jaeki Min, Lei Yang, Divyabharathi Chepyala, Marisa Actis, Guoqing Du, Brandon Smart, Dylan Maxwell, Boer Xie, Satoshi Yoshimura, Junming Peng, David T. Teachey, Zoran Rankovic, Jun J. Yang. Induced proximity and proteolytic targeting of LCK as a novel therapeutic approach in T-cell leukemia [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2022; 2022 Apr 8-13. Philadelphia (PA): AACR; Cancer Res 2022;82(12_Suppl):Abstract nr 423.
Collapse
Affiliation(s)
- Jianzhong Hu
- 1St. Jude Children's Research Hospital, Memphis, TN
| | | | - Jaeki Min
- 1St. Jude Children's Research Hospital, Memphis, TN
| | - Lei Yang
- 1St. Jude Children's Research Hospital, Memphis, TN
| | | | - Marisa Actis
- 1St. Jude Children's Research Hospital, Memphis, TN
| | - Guoqing Du
- 1St. Jude Children's Research Hospital, Memphis, TN
| | | | | | - Boer Xie
- 1St. Jude Children's Research Hospital, Memphis, TN
| | | | - Junming Peng
- 1St. Jude Children's Research Hospital, Memphis, TN
| | | | | | - Jun J. Yang
- 1St. Jude Children's Research Hospital, Memphis, TN
| |
Collapse
|
15
|
Zhao H, Wang H, Li H, Zhang T, Zhang J, Guo W, Fu K, Du G. Magnetic and near-infrared-II fluorescence Au-Gd nanoclusters for imaging-guided sensitization of tumor radiotherapy. Nanoscale Adv 2022; 4:1815-1826. [PMID: 36132156 PMCID: PMC9419504 DOI: 10.1039/d2na00044j] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Accepted: 02/28/2022] [Indexed: 05/30/2023]
Abstract
The significant role of multifunctional nanoprobes with complementary advantages in magnetic and near-infrared-II (NIR-II, 1000-1700 nm) fluorescence properties has been documented in precision cancer theranostics. However, certain limitations, including the large size (>10 nm), low NIR-II fluorescence quantum yield (QY < 1.0%), and inefficient magnetic performance (relaxation rate < 5.0 s-1 mM-1) of nanoprobes, restrict their biomedical applications and clinical translation. Albumin-based biomineralization was adopted to prepare bright NIR-II Au NCs, which were further conjugated with DTPA and Gd ions to produce magnetic and NIR-II Au-Gd NCs. Albumin-based biomineralization helped to develop ultrasmall Au-Gd nanoclusters with ultrasmall size (∼2 nm), high NIR-II fluorescence QY (∼3.0%), and effective magnetic resonance imaging (MRI) performance (relaxation rate (r1) = 22.6 s-1 mM-1). On the one hand, Au-Gd NCs achieved NIR-II fluorescence and MRI dual-modal imaging of tumors with a high signal-to-background ratio (SBR = 8.2) in mice. On the other hand, their effective metabolism simultaneously through the kidney and liver minimized their toxicity in vivo. Moreover, compared to the control group, the survival time of tumor-bearing mice was extended by three times when Au-Gd NCs with high-Z elements were used to perform dual-modal imaging-guided sensitization of tumor radiotherapy. Thus, ultrasmall nanoprobes with complementary imaging modalities and therapeutic functions manifest great potential in cancer precision diagnosis and therapy.
Collapse
Affiliation(s)
- Hui Zhao
- Department of MRI Diagnosis, The Second Affiliated Hospital of Harbin Medical University Harbin 150086 Heilongjiang Province P. R. China
| | - Hao Wang
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital of Harbin Medical University Harbin 150086 Heilongjiang Province P. R. China
| | - Hairu Li
- Department of Ultrasound, The Second Affiliated Hospital of Harbin Medical University Harbin 150086 Heilongjiang Province P. R. China
| | - Tiecheng Zhang
- Department of MRI Diagnosis, The Second Affiliated Hospital of Harbin Medical University Harbin 150086 Heilongjiang Province P. R. China
| | - Jing Zhang
- Department of MRI Diagnosis, The Second Affiliated Hospital of Harbin Medical University Harbin 150086 Heilongjiang Province P. R. China
| | - Wenhui Guo
- Department of MRI Diagnosis, The Second Affiliated Hospital of Harbin Medical University Harbin 150086 Heilongjiang Province P. R. China
| | - Kuang Fu
- Department of MRI Diagnosis, The Second Affiliated Hospital of Harbin Medical University Harbin 150086 Heilongjiang Province P. R. China
| | - Guoqing Du
- Department of Ultrasound, The Second Affiliated Hospital of Harbin Medical University Harbin 150086 Heilongjiang Province P. R. China
- Department of Ultrasound, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences Guangzhou 510080 Guangdong Province P. R. China
| |
Collapse
|
16
|
Liu Q, Chen S, Shen W, Duan X, Ren X, Sun Z, Tian J, Xue J, Du G. Establishment and Validation of a Predictive Model for Long-Term Severe Functional Tricuspid Regurgitation after Mitral Valve Replacement. Heart Surg Forum 2022; 25:E132-E139. [DOI: 10.1532/hsf.4425] [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: 11/16/2021] [Accepted: 12/01/2021] [Indexed: 11/20/2022]
Abstract
Background: The objective was to develop and validate an individualized nomogram to predict severe functional tricuspid regurgitation (S-FTR) after mitral valve replacement (MVR) via retrospective analysis of rheumatic heart disease (RHD) patients’ pre-clinical characteristics.
Methods: Between 2001-2015, 442 MVR patients of RHD were examined. Transthoracic echocardiography detected S-FTR, and logistic regression model analyzed its independent predictors. R software established a nomogram prediction model, and Bootstrap determined its theoretical probability, which subsequently was compared with the actual patient probability to calculate the area under the curve (AUC) and calibration plots. Decision curve analysis (DCA) identified its clinical utility.
Results: Ninety-six patients developed S-FTR during the follow-up period. Both uni- and multivariate analyses found significant correlations between S-FTR occurrence with gender, age, atrial fibrillation (AF), pulmonary arterial hypertension (PH), left atrial diameter (LAD), and tricuspid regurgitation area (TRA). The individualized nomogram model had the AUC of 0.99 in internal verification. Calibration test indicated high agreement of predicted and actual S-FTR onset. DCA also showed that utilization of those six aforementioned factors was clinically useful.
Conclusion: The nomogram for the patient characteristics of age, gender, AF, PH, LAD, and TRA found that they were highly predictive for future S-FTR onset within 5 years. This predictive ability therefore allows clinicians to optimize postoperative patient care and avoid unnecessary tricuspid valve surgeries.
Collapse
|
17
|
Guo P, Du G, Wei L, Lu H, Chen S, Gao C, Chen Y, Li J, Luo D. Multiscale face recognition in cluttered backgrounds based on visual attention. Neurocomputing 2022. [DOI: 10.1016/j.neucom.2021.10.071] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
18
|
Shang S, Huang C, Yan W, Chen R, Cao J, Zhang Y, Guo Y, Du G. Performance of a computer aided diagnosis system for SARS-CoV-2 pneumonia based on ultrasound images. Eur J Radiol 2021; 146:110066. [PMID: 34902668 PMCID: PMC8609670 DOI: 10.1016/j.ejrad.2021.110066] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 11/18/2021] [Accepted: 11/20/2021] [Indexed: 12/11/2022]
Abstract
Purpose In this study we aimed to leverage deep learning to develop a computer aided diagnosis (CAD) system toward helping radiologists in the diagnosis of SARS-CoV-2 virus syndrome on Lung ultrasonography (LUS). Method A CAD system is developed based on a transfer learning of a residual network (ResNet) to extract features on LUS and help radiologists to distinguish SARS-CoV-2 virus syndrome from healthy and non-SARS-CoV-2 pneumonia. A publicly available LUS dataset for SARS-CoV-2 virus syndrome consisting of 3909 images has been employed. Six radiologists with different experiences participated in the experiment. A comprehensive LUS data set was constructed and employed to train and verify the proposed method. Several metrics such as accuracy, recall, precision, and F1-score, are used to evaluate the performance of the proposed CAD approach. The performances of the radiologists with and without the help of CAD are also evaluated quantitively. The p-values of the t-test shows that with the help of the CAD system, both junior and senior radiologists significantly improve their diagnosis performance on both balanced and unbalanced datasets. Results Experimental results indicate the proposed CAD approach and the machine features from it can significantly improve the radiologists’ performance in the SARS-CoV-2 virus syndrome diagnosis. With the help of the proposed CAD system, the junior and senior radiologists achieved F1-score values of 91.33% and 95.79% on balanced dataset and 94.20% and 96.43% on unbalanced dataset. The proposed approach is verified on an independent test dataset and reports promising performance. Conclusions The proposed CAD system reports promising performance in facilitating radiologists’ diagnosis SARS-CoV-2 virus syndrome and might assist the development of a fast, accessible screening method for pulmonary diseases.
Collapse
Affiliation(s)
- Shiyao Shang
- Department of Ultrasound, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Chunwang Huang
- Department of Ultrasound, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Wenxiao Yan
- Department of Ultrasound, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Rumin Chen
- Department of Ultrasound, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Jinglin Cao
- Department of Ultrasound, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Yukun Zhang
- Department of Ultrasound, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Yanhui Guo
- Department of Computer Science, University of Illinois Springfield, Springfield, IL USA.
| | - Guoqing Du
- Department of Ultrasound, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China.
| |
Collapse
|
19
|
Kalam A, Al-Sehemi A, Alrumman S, Du G, Assiri M, Hesham AEL. Antibacterial studies of bio-functionalized carbon decorated silver nanoparticles (AgNPs). J INDIAN CHEM SOC 2021. [DOI: 10.1016/j.jics.2021.100155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
20
|
Hu N, Shen W, Li H, Zhang Q, Cai G, Zhang Y, Du G. Right atrial papillary fibroelastoma arising from the Chiari network detected by echocardiography: a case report and literature review. Cardiovasc Pathol 2021; 55:107372. [PMID: 34320368 DOI: 10.1016/j.carpath.2021.107372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 07/04/2021] [Accepted: 07/19/2021] [Indexed: 11/26/2022] Open
Abstract
PURPOSE To improve our understanding of cardiac papillary fibroelastoma(PFE)and provide evidence for its treatment and prognosis. MATERIALS AND METHODS We report a 54-year-old Chinese male who was hospitalized for a 14-day headache with a previous vertebral aneurysm history. A right atrial mass arising from the CN was detected by echocardiography and complete tumor resection was performed finally. Pathologic findings confirmed the diagnosis of cardiac papillary fibroelastoma. The recovery of the patient was uneventful and follow-up echocardiographic examination revealed no recurrence of the tumor. RESULTS Transthoracic echocardiography revealed a mobile, sessile mass in the right atrium without obstructing the orifice of the tricuspid valve. The subsequent transesophageal echocardiography confirmed the presence of a 1.56cm × 1.24cm mobile, sessile, irregular mass arising from the CN (Fig. 1) and showed no evidence of patent foramen ovale. CONCLUSIONS Early recognition and surgical excision is essential for patients with cardiac PFE.
Collapse
Affiliation(s)
- Nana Hu
- Department of Ultrasound, Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Wenqian Shen
- Department of Ultrasound, Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Hairu Li
- Department of Ultrasound, Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Qinghua Zhang
- Department of Cardiovascular, Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Guohua Cai
- Department of Cardiovascular, Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Yanmei Zhang
- Department of Pathology, Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Guoqing Du
- Department of Ultrasound, Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China; Department of Ultrasound, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences.
| |
Collapse
|
21
|
Seshadri MR, Fontán L, Scott D, Hatcher J, Sreevatsan P, Du G, Qiao Q, Wu H, Us I, Xia M, Gray N, Melnick A. MALT1 DEGRADATION FOR THE TREATMENT OF ACTIVATED B‐CELL TYPE DIFFUSE LARGE B‐CELL LYMPHOMA. Hematol Oncol 2021. [DOI: 10.1002/hon.12_2879] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- M. R Seshadri
- Weill Cornell Medicine Department of Medicine Division of Hematology and Oncology New York New York USA
| | - L Fontán
- Weill Cornell Medicine Department of Medicine Division of Hematology and Oncology New York New York USA
| | - D Scott
- Dana Farber Cancer Institute Harvard Medical School Department of Biological Chemistry and Molecular Pharmacology Boston Massachusetts USA
| | - J Hatcher
- Dana Farber Cancer Institute Harvard Medical School Department of Biological Chemistry and Molecular Pharmacology Boston Massachusetts USA
| | - P Sreevatsan
- Dana Farber Cancer Institute Harvard Medical School Department of Biological Chemistry and Molecular Pharmacology Boston Massachusetts USA
| | - G Du
- Dana Farber Cancer Institute Harvard Medical School Department of Biological Chemistry and Molecular Pharmacology Boston Massachusetts USA
| | - Q Qiao
- Boston Children's Hospital Harvard Medical School Program in Cellular and Molecular Medicine Boston Massachusetts USA
| | - H Wu
- Boston Children's Hospital Harvard Medical School Program in Cellular and Molecular Medicine Boston Massachusetts USA
| | - I Us
- Weill Cornell Medicine Department of Medicine Division of Hematology and Oncology New York New York USA
| | - M Xia
- Weill Cornell Medicine Department of Medicine Division of Hematology and Oncology New York New York USA
| | - N Gray
- Stanford University Department of Chemical and Systems Biology Stanford California USA
| | - A Melnick
- Weill Cornell Medicine Department of Medicine Division of Hematology and Oncology New York New York USA
| |
Collapse
|
22
|
Gong H, Li K, Xie R, Du G, Li L, Wang S, Yin J, Gu J, Wang P, Chen M, Hou X. Clinical therapy of platelet-rich plasma vs hyaluronic acid injections in patients with knee osteoarthritis: A systematic review and meta-analysis of randomized double-blind controlled trials. Medicine (Baltimore) 2021; 100:e25168. [PMID: 33761693 PMCID: PMC9281903 DOI: 10.1097/md.0000000000025168] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Accepted: 11/17/2020] [Indexed: 01/05/2023] Open
Abstract
OBJECTIVE: Knee osteoarthritis (KOA) is the most common degenerative disease of the joints caused by articular cartilage injury, degeneration of joint edges and hyperplasia of subchondral bone. The purpose of this study is to investigate the efficacy and safety of clinical therapy of platelet-rich plasma vs hyaluronic acid injections in patients with KOA. METHODS: We systematically investigated Pubmed, Embase, and the Cochrane Library for all related articles published through May 2020. Any study was included that compared the effect of platelet-rich plasma (PRP) and hyaluronic acid (HA) in patients with KOA. The search terms included “platelet-rich plasma,” “PRP,” “hyaluronic acid,” “HA,” “knee,” “osteoarthritis,” “arthritis,” “KOA”. Review Manager 5.3 was used to analyze and calculate data regarding these outcome indicators. RESULTS: In this study, 1. Six randomized double-blind controlled trials were included, including 338 patients in the PRP group and 323 patients in the HA group. 2. Meta-analysis results showed that the Western Ontario and MacMaster Universities Osteoarthritis Index (WOMAC) Total Score was differed significantly between the PRP and HA groups at the 1, 6, 12 months follow-up (MD = 3.39, 95% CI: 2.85–3.92, P < .05). In a comparison of Physical function scores at the 12 months follow-up, PRP improved knee function scores more than HA (MD = 3.28; 95% CI: 2.13–4.43; P < .05). However, International Knee Documentation Committee (IKDC), Tegner Activity scores, EuroQol visual analogue scale (EQ-VAS), and Adverse Events (AEs) were all not significantly different (P > .05). 3. Results showed that compared with HA, PRP had significant advantages in relevant improving knee function and quality of life. CONCLUSION: In improving knee function and quality of life, PRP showed superiority over HA in long-term follow-up from well-designed double-blind trials, but a large number of high-quality multi-center studies are still needed to provide more sufficient evidence.
Collapse
Affiliation(s)
- Hao Gong
- Orthopedics Department, Beijing Changping Hospital of Intergrated Chinese and Western Medicine
| | - Kaiming Li
- General Orthopedics Department, Wangjing Hospital of CACMS, Beijing
| | - Rui Xie
- General Orthopedics Department, Wangjing Hospital of CACMS, Beijing
| | - Guoqing Du
- Shi's Center of Orthopedics and Traumatology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine (TCM), Institute of Traumatology & Orthopedics, Shanghai Academy of TCM, Shanghai, PR China
| | - Linghui Li
- General Orthopedics Department, Wangjing Hospital of CACMS, Beijing
| | - Shangquan Wang
- General Orthopedics Department, Wangjing Hospital of CACMS, Beijing
| | - Jing Yin
- General Orthopedics Department, Wangjing Hospital of CACMS, Beijing
| | - Jinyu Gu
- General Orthopedics Department, Wangjing Hospital of CACMS, Beijing
| | - Ping Wang
- General Orthopedics Department, Wangjing Hospital of CACMS, Beijing
| | - Ming Chen
- Orthopedics Department, Beijing Changping Hospital of Intergrated Chinese and Western Medicine
| | - Xiaozhou Hou
- General Orthopedics Department, Wangjing Hospital of CACMS, Beijing
| |
Collapse
|
23
|
Zhang M, Du G, Liu C, Li W, Yang J, Chen B, Yu X, Xiong Y, Jiang E, Gao N, Jiang S, Xu Z, Wang X, Zhan H. Efficacy and safety of Shi-style cervical manipulation therapy for treating acute and subacute neck pain: study protocol for a randomized controlled trial. Trials 2021; 22:123. [PMID: 33557898 PMCID: PMC7869462 DOI: 10.1186/s13063-021-05062-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2020] [Accepted: 01/20/2021] [Indexed: 11/10/2022] Open
Abstract
Background Neck pain is a common clinical disease, which seriously affects people’s mental health and quality of life and results in loss of social productivity. Improving neck pain’s curative effect and reducing its recurrence rate are major medical problems. Shi’s manipulation therapy has unique advantages and technical features that aid in the diagnosis and treatment of neck pain. Compared with first-line non-steroidal anti-inflammatory drug (NSAID) treatment of neck pain, Shi’s cervical manipulation lacks the relevant research basis of therapeutic advantage, safety, and satisfaction for treating acute and subacute neck pain. Herein, we aim to confirm our hypothesis in a clinical trial that the safety and efficacy of Shi’s cervical manipulation will be more effective, safer, and more satisfactory than NSAIDs to treat acute and subacute neck pain. Methods In this multicenter, positive-controlled, randomized clinical trial, traditional analgesic drug (NSAID) is used to evaluate and show that Shi’s manipulation is more effective, safe, and satisfactory for treating acute and subacute neck pain. Overall, 240 subjects are randomly divided into the trial and control groups, with both groups treated by the corresponding main intervention method for up to 12 weeks. Clinical data will be collected before the intervention and immediately after the first treatment; at 3 days and 1, 2, 4, 8, and 12 weeks after the intervention; and at 26 and 52 weeks after treatment follow-up of clinical observation index data collection. The clinical observation indices are as follows: (1) cervical pain is the primary observation index, measured by Numerical Rating Scale. The secondary indices include the following: (2) cervical dysfunction index, measured by patient self-evaluation using cervical Neck Disability Index; (3) cervical activity measurement, measured by the cervical vertebra mobility measurement program of Android mobile phone system; (4) overall improvement, measured by patient self-evaluation with SF-36; and (5) satisfactory treatment, determined by patient self-evaluation. Discussion We will discuss whether Shi’s cervical manipulation has greater advantages in efficacy, safety, and satisfaction of acute and subacute neck pain than traditional NSAIDs, to provide a scientific basis for the dissemination and application of Shi’s cervical manipulation. Trial registration China Registered Clinical Trial Registration Center ChiCTR1900021371. Registered on 17 February 2019
Collapse
Affiliation(s)
- Mingcai Zhang
- Shi's Center of Orthopedics and Traumatology, Shuguang Hospital Affiliated to Shanghai University of TCM, Institute of Traumatology & Orthopedics, Shanghai Academy of TCM, Shanghai, 201203, People's Republic of China
| | - Guoqing Du
- Shi's Center of Orthopedics and Traumatology, Shuguang Hospital Affiliated to Shanghai University of TCM, Institute of Traumatology & Orthopedics, Shanghai Academy of TCM, Shanghai, 201203, People's Republic of China
| | - Congying Liu
- Shanghai University of TCM, Shanghai, People's Republic of China
| | - Wei Li
- Jing'an District Central Hospital of Shanghai, Shanghai, People's Republic of China
| | - Jiayu Yang
- Xiangshan TCM Hospital, Huangpu District, Shanghai, People's Republic of China
| | - Bo Chen
- Shi's Center of Orthopedics and Traumatology, Shuguang Hospital Affiliated to Shanghai University of TCM, Institute of Traumatology & Orthopedics, Shanghai Academy of TCM, Shanghai, 201203, People's Republic of China
| | - Xiaoyue Yu
- Jing'an District Central Hospital of Shanghai, Shanghai, People's Republic of China
| | - Yizhe Xiong
- Shi's Center of Orthopedics and Traumatology, Shuguang Hospital Affiliated to Shanghai University of TCM, Institute of Traumatology & Orthopedics, Shanghai Academy of TCM, Shanghai, 201203, People's Republic of China
| | - Enyu Jiang
- Xiangshan TCM Hospital, Huangpu District, Shanghai, People's Republic of China
| | - Ningyang Gao
- Shi's Center of Orthopedics and Traumatology, Shuguang Hospital Affiliated to Shanghai University of TCM, Institute of Traumatology & Orthopedics, Shanghai Academy of TCM, Shanghai, 201203, People's Republic of China
| | - Sumin Jiang
- Jing'an District Central Hospital of Shanghai, Shanghai, People's Republic of China
| | - Zhenqiu Xu
- Shi's Center of Orthopedics and Traumatology, Shuguang Hospital Affiliated to Shanghai University of TCM, Institute of Traumatology & Orthopedics, Shanghai Academy of TCM, Shanghai, 201203, People's Republic of China
| | - Xiang Wang
- Shi's Center of Orthopedics and Traumatology, Shuguang Hospital Affiliated to Shanghai University of TCM, Institute of Traumatology & Orthopedics, Shanghai Academy of TCM, Shanghai, 201203, People's Republic of China
| | - Hongsheng Zhan
- Shi's Center of Orthopedics and Traumatology, Shuguang Hospital Affiliated to Shanghai University of TCM, Institute of Traumatology & Orthopedics, Shanghai Academy of TCM, Shanghai, 201203, People's Republic of China.
| |
Collapse
|
24
|
Liu Y, Du G, Li X. Threshold for lateral meniscal body extrusion on MRI in middle-aged and elderly patients with symptomatic knee osteoarthritis. Diagn Interv Imaging 2020; 101:677-683. [DOI: 10.1016/j.diii.2020.05.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2020] [Revised: 05/03/2020] [Accepted: 05/30/2020] [Indexed: 12/12/2022]
|
25
|
Du G, Xiang C, Sang X, Wang X, Shi Y, Wang N, Wang S, Li P, Wei X, Zhang M, Gao L, Zhan H, Wei L. Histone deacetylase 4 deletion results in abnormal chondrocyte hypertrophy and premature ossification from collagen type 2α1‑expressing cells. Mol Med Rep 2020; 22:4031-4040. [PMID: 33000215 DOI: 10.3892/mmr.2020.11465] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Accepted: 07/29/2020] [Indexed: 02/06/2023] Open
Abstract
Histone deacetylase 4 (HDAC4) plays a vital role in chondrocyte hypertrophy and bone formation. To investigate the function of HDAC4 in postnatal skeletal development, the present study developed lineage‑specific HDAC4‑knockout mice [collagen type 2α1 (Col2α1)‑Cre, HDAC4d/d mice] by crossing transgenic mice expressing Cre recombinase. Thus, a specific ablation of HDAC4 was performed in Col2α1‑expressing mice cells. The knee joints of HDAC4fl/fl and Col2α1‑Cre, HDAC4d/d mice were analyzed at postnatal day (P)2‑P21 using an in vivo bromodeoxyuridine (BrdU) assay, and Safranin O, Von Kossa and whole‑body staining were used to evaluate the developmental growth plate, hypertrophic differentiation, mineralization and skeletal mineralization patterns. The trabecular bone was analyzed using microcomputed tomography. The expressions of BrdU, proliferating cell nuclear antigen (PCNA), matrix metalloproteinase (MMP)‑13, runt‑related transcription factor (Runx)‑2, osteoprotegerin (OPG), CD34, type X collagen (ColX), osteocalcin and Wnt5a were determined using immunohistochemistry, in situ hybridization (ISH) and reverse transcription‑quantitative (RT‑q)PCR. The results demonstrated that HDAC4‑null mice (HDAC4d/d mice) were severely runted; these mice had a shortened hypertrophic zone (histopathological evaluation), accelerated vascular invasion and articular mineralization (Von Kossa staining), elevated expressions of MMP‑13, Runx2, OPG and CD34 (RT‑qPCR and immunohistochemistry), downregulated expression of the proliferative marker BrdU and PCNA (immunohistochemistry), increased expression of ColX and decreased expression of Wnt5a (ISH). In conclusion, chondrocyte‑derived HDAC4 was responsible for regulating chondrocyte proliferation and differentiation as well as endochondral bone formation.
Collapse
Affiliation(s)
- Guoqing Du
- Shi's Center of Orthopedics and Traumatology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine (TCM), Institute of Traumatology and Orthopedics, Shanghai Academy of TCM, Shanghai 201203, P.R. China
| | - Chuan Xiang
- Department of Orthopedics, The Second Hospital Shanxi Medical University, Taiyuan, Shanxi 030001, P.R. China
| | - Xiaowen Sang
- Shi's Center of Orthopedics and Traumatology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine (TCM), Institute of Traumatology and Orthopedics, Shanghai Academy of TCM, Shanghai 201203, P.R. China
| | - Xiang Wang
- Shi's Center of Orthopedics and Traumatology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine (TCM), Institute of Traumatology and Orthopedics, Shanghai Academy of TCM, Shanghai 201203, P.R. China
| | - Ying Shi
- Shi's Center of Orthopedics and Traumatology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine (TCM), Institute of Traumatology and Orthopedics, Shanghai Academy of TCM, Shanghai 201203, P.R. China
| | - Nan Wang
- Shi's Center of Orthopedics and Traumatology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine (TCM), Institute of Traumatology and Orthopedics, Shanghai Academy of TCM, Shanghai 201203, P.R. China
| | - Shaowei Wang
- Department of Orthopedics, The Second Hospital Shanxi Medical University, Taiyuan, Shanxi 030001, P.R. China
| | - Pengcui Li
- Department of Orthopedics, The Second Hospital Shanxi Medical University, Taiyuan, Shanxi 030001, P.R. China
| | - Xiaochun Wei
- Department of Orthopedics, The Second Hospital Shanxi Medical University, Taiyuan, Shanxi 030001, P.R. China
| | - Min Zhang
- Shi's Center of Orthopedics and Traumatology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine (TCM), Institute of Traumatology and Orthopedics, Shanghai Academy of TCM, Shanghai 201203, P.R. China
| | - Lilan Gao
- Tianjin Key Laboratory for Control Theory and Applications in Complicated Industry Systems, School of Mechanical Engineering, Tianjin University of Technology, Tianjin 300384, P.R. China
| | - Hongsheng Zhan
- Shi's Center of Orthopedics and Traumatology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine (TCM), Institute of Traumatology and Orthopedics, Shanghai Academy of TCM, Shanghai 201203, P.R. China
| | - Lei Wei
- Department of Orthopedics, The Warren Alpert Medical School of Brown University and Rhode Island Hospital, Providence, RI 02903, USA
| |
Collapse
|
26
|
Sun P, Wang N, Zhao P, Wang C, Li H, Chen Q, Mang G, Wang W, Fang S, Du G, Zhang M, Tian J. Circulating Exosomes Control CD4 + T Cell Immunometabolic Functions via the Transfer of miR-142 as a Novel Mediator in Myocarditis. Mol Ther 2020; 28:2605-2620. [PMID: 32882180 DOI: 10.1016/j.ymthe.2020.08.015] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Revised: 07/13/2020] [Accepted: 08/19/2020] [Indexed: 12/29/2022] Open
Abstract
CD4+ T cells undergo immunometabolic activation to mount an immunogenic response during experimental autoimmune myocarditis (EAM). Exosomes are considered key messengers mediating multiple T cell functions in autoimmune responses. However, the role of circulating exosomes in EAM immunopathogenesis and CD4+ T cell dysfunction remains elusive. Our objective was to elucidate the mechanism of action for circulating exosomes in EAM pathogenesis. We found that serum exosomes harvested from EAM mice induced CD4+ T cell immunometabolic dysfunction. Treatment with the exosome inhibitor GW4869 protected mice from developing EAM, underlying that exosomes are indispensable for the pathogenesis of EAM. Furthermore, by transfer of EAM exosomes, we confirmed that circulating exosomes initiate the T cell pathological immune response, driving the EAM pathological process. Mechanistically, EAM-circulating exosomes selectively loaded abundant microRNA (miR)-142. We confirmed methyl-CpG binding domain protein 2 (MBD2) and suppressor of cytokine signaling 1 (SOCS1) as functional target genes of miR-142. The miR-142/MBD2/MYC and miR-142/SOCS1 communication axes are critical to exosome-mediated immunometabolic turbulence. Moreover, the in vivo injection of the miR-142 inhibitor alleviated cardiac injury in EAM mice. This effect was abrogated by pretreatment with EAM exosomes. Collectively, our results indicate a newly endogenous mechanism whereby circulating exosomes regulate CD4+ T cell immunometabolic dysfunction and EAM pathogenesis via cargo miR-142.
Collapse
Affiliation(s)
- Ping Sun
- Department of Ultrasound, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China; The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China
| | - Naixin Wang
- The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China; Department of Cardiology, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Peng Zhao
- Department of Ultrasound, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Chao Wang
- Department of Ultrasound, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China; The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China
| | - Hairu Li
- Department of Ultrasound, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China; The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China
| | - Qi Chen
- The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China; Department of Cardiology, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Ge Mang
- The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China; Department of Cardiology, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Weiwei Wang
- The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China; Department of Cardiology, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Shaohong Fang
- The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China
| | - Guoqing Du
- Department of Ultrasound, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China; The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China
| | - Maomao Zhang
- The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China; Department of Cardiology, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China.
| | - Jiawei Tian
- Department of Ultrasound, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China.
| |
Collapse
|
27
|
Zhu J, Li B, Qiu L, Liu H, Zhang M, Wang Y, Wang P, Jiao D, Chen T, Liu X, Cui L, Shan Y, Luo B, Lin N, Hua X, Hu Z, Hu Y, Tu B, Zheng Y, Chen S, Xu S, Mao J, Liu W, Xiang M, Li J, Chen J, Tang Y, Chen S, He Y, Dai T, Zhang S, Zhang Y, Fang M, Hao S, Lin X, He X, Bao B, Xi Z, Peng X, Zhang Q, Du G. A measurement method of knee joint space width by ultrasound: a large multicenter study. Quant Imaging Med Surg 2020; 10:979-987. [PMID: 32489922 DOI: 10.21037/qims-20-373] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Background Although plain radiology is the primary method for assessing joint space width (JSW), it has poor sensitivity to change over time in regards to determining longitudinal progression. We, therefore, developed a new ultrasound (US) measurement method of knee JSW and aimed to provide a monitoring method for the change of JSW in the future. Methods A multicenter study was promoted by the Professional Committee of Musculoskeletal Ultrasound, the Ultrasound Society, and the Chinese Medical Doctor Association. US study of knee specimens determined the landmarks for ultrasonic measurement of knee JSW. The US of 1,272 participants from 27 centers was performed to discuss the feasibility and possible influencing factors of knee JSW. The landmarks for US measurement of knee JS, the inflection point of medial femoral epicondyle and the proximal end of the tibia, were determined. Results The mean knee JSW1 (medial knee JSW) was 8.57±1.95 mm in females and 9.52±2.31 mm in males. The mean knee JSW2 (the near medial knee JSW) was 9.07±2.24 mm in females and 10.17±2.35 mm in males. The JSW values of males were significantly higher than those of females, with a statistical difference. JSW values were negatively correlated with age and body mass index (BMI) to different degrees and positively correlated with height. Conclusions The novel US measurement method can be used to measure knee JSW.
Collapse
Affiliation(s)
- Jiaan Zhu
- Department of Ultrasound, Peking University People's Hospital, Beijing 100044, China
| | - Bing Li
- Department of Ultrasound, Peking University People's Hospital, Beijing 100044, China
| | - Li Qiu
- Department of Ultrasound, Sichuan University West China Hospital, Chengdu 610041, China
| | - Hongmei Liu
- Department of Ultrasound, Guangdong Second Provincial General Hospital, Guangzhou 510317, China
| | - Mi Zhang
- Department of Ultrasound, Peking University People's Hospital, Beijing 100044, China
| | - Yuexiang Wang
- Department of Ultrasound, Chinese People's Liberation Army General Hospital, Beijing 100853, China
| | - Ping Wang
- Department of Ultrasound, Third Affiliated Hospital of Southern Medical University, Guangzhou 510000, China
| | - Dan Jiao
- Department of Ultrasound, China-Japan Union Hospital of Jilin University, Changchun 130033, China
| | - Tao Chen
- Department of Ultrasound, Beijing Jishuitan Hospital, Beijing 100009, China
| | - Xueling Liu
- Department of Ultrasound, The First Affiliated Hospital of Guangxi University of Chinese Medicine, Nanning 530023, China
| | - Ligang Cui
- Department of Ultrasound, Peking University Third Hospital, Beijing 100191, China
| | - Yong Shan
- Department of Ultrasound, The Second Hospital of Anhui Medical University, Hefei 230601, China
| | - Baoming Luo
- Department of Ultrasound, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China
| | - Ning Lin
- Department of Ultrasound, Fujian Provincial Hospital, Fuzhou 350001, China
| | - Xing Hua
- Department of Ultrasound, The First Hospital Affiliated to Army Medical University (Southwest Hospital), Chongqing 400038, China
| | - Zhenlong Hu
- Department of Ultrasound, Shanghai Jiao Tong University Affiliated First People's Hospital, Shanghai 210620, China
| | - Yue Hu
- Department of Ultrasound, Peking University People's Hospital, Beijing 100044, China
| | - Bin Tu
- Department of Ultrasound, Foshan Hospital of Traditional Chinese Medicine, Foshan 528000, China
| | - Yuanyi Zheng
- Department of Ultrasound, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China
| | - Shuqiang Chen
- Department of Ultrasound, The First Affiliated Hospital of Fujian Medical University, Fuzhou 350005, China
| | - Shiliang Xu
- Department of Ultrasound, Haikou People's Hospital, Haikou 570208, China
| | - Jianying Mao
- Department of Ultrasound, Shanghai Guanghua Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai 200052, China
| | - Weiyong Liu
- Department of Ultrasound, The First Affiliated Hospital of University of Science and Technology of China, Hefei 230036, China
| | - Minghui Xiang
- Department of Ultrasound, Central Hospital Affiliated to Shenyang Medical College, Shenyang 110027, China
| | - Jia Li
- Department of Ultrasound, Zhongda Hospital Southeast University, Nanjing 210009, China
| | - Jian Chen
- Department of Ultrasound, Yan'an Hospital of Kunming City, Kunming 650051, China
| | - Yuanjiao Tang
- Department of Ultrasound, Sichuan University West China Hospital, Chengdu 610041, China
| | - Siming Chen
- Department of Ultrasound, Chinese People's Liberation Army General Hospital, Beijing 100853, China
| | - Yanni He
- Department of Ultrasound, Guangdong Second Provincial General Hospital, Guangzhou 510317, China
| | - Ting Dai
- Department of Ultrasound, China-Japan Union Hospital of Jilin University, Changchun 130033, China
| | - Shumin Zhang
- Department of Ultrasound, Beijing Jishuitan Hospital, Beijing 100009, China
| | - Yuanyuan Zhang
- Department of Ultrasound, Peking University Third Hospital, Beijing 100191, China
| | - Mingdi Fang
- Department of Ultrasound, The Second Hospital of Anhui Medical University, Hefei 230601, China
| | - Shaoyun Hao
- Department of Ultrasound, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China
| | - Xiaoyan Lin
- Department of Ultrasound, Fujian Provincial Hospital, Fuzhou 350001, China
| | - Xiuzhen He
- Department of Ultrasound, Foshan Hospital of Traditional Chinese Medicine, Foshan 528000, China
| | - Bo Bao
- Department of Ultrasound, Haikou People's Hospital, Haikou 570208, China
| | - Zhanguo Xi
- Department of Ultrasound, Luoyang Orthopedic-Traumatological Hospital of Henan Province, Luoyang 471000, China
| | - Xiaojing Peng
- Department of Ultrasound, Jiangsu Province Hospital, Nanjing 210029, China
| | - Qunxia Zhang
- Department of Ultrasound, the Second Affiliated Hospital of Chongqing Medical University, Chongqing 400065, China
| | - Guoqing Du
- Department of Ultrasound, the Second Affiliated Hospital of Harbin Medical University, Harbin 150001, China
| |
Collapse
|
28
|
Gao L, Li S, Wei X, Du G, Wei D, Wei L. Conditional deletion of HDAC4 from collagen type 2α1-expressing cells increases angiogenesis in vivo. Mol Med 2020; 26:36. [PMID: 32354322 PMCID: PMC7193350 DOI: 10.1186/s10020-020-00154-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Accepted: 03/02/2020] [Indexed: 11/19/2022] Open
Abstract
Background HDAC4 is a key regulator of chondrocyte hypertrophy and skeletal development, but it is not clear whether the increase in vascular invasion at growth plates is related to HDAC4 expression. To determine it, we investigated the relationship between HDAC4 and angiogenesis in both in vivo and in vitro models. Methods HDAC4 was deleted in Col2α1-Cre; HDAC4fl/fl mice. Growth of the Col2α1-Cre; HDAC4d/d mice was compared with HDAC4fl/fl mice at postnatal days 2, 4, 6, and 8. X-rays were taken to examine skeletal development. At postnatal days 14 and 21, mice were euthanized for specimen collection. Murine chondrocytes were isolated from the ventral parts of rib cages of 6-day-old mice (C57Bl/6) and transfected with a vector expressing HDAC4 as a fusion protein with green fluorescent protein (GFP). Relative expression levels of HDAC4, VEGF, and Hif1α were measured in these cells by Western blot, RT-qPCR, enzyme-linked immunosorbent, histology, and immunohistochemistry assays. Results The Col2α1-Cre; HDAC4d/d mice were markedly smaller compared with the control mice. At postnatal days 14 and 21, the Col2α1-Cre; HDAC4d/d mice exhibited a shortened growth plate, a larger secondary ossification center, and stronger staining of CD31 and CD34 compared to control mice. The isolated chondrocyte cells exhibited a high transfection efficiency of HDAC4 which resulted in the detection of a significant decrease in VEGF and Hif1α levels compared with the control chondrocytes. Conclusions HDAC4 expression in chondrocytes contributes to angiogenesis in the growth plate, and its absence in vivo negatively affects growth plates.
Collapse
Affiliation(s)
- Lilan Gao
- Tianjin Key Laboratory for Advanced Mechatronic System Design and Intelligent Control, School of Mechanical Engineering, Tianjin University of Technology, Tianjin, 300381, China.,National Demonstration Center for Experimental Mechanical and Electrical Engineering Education (Tianjin University of Technology), Tianjin, 300381, China.,Department of Orthopedics, Warren Alpert Medical School of Brown University / RIH, Coro West/402H, 1 Hoppin St, Providence, RI, 02903, USA
| | - Shengchun Li
- The Second Hospital of Shanxi Medical University, Taiyuan, 030001, China
| | - Xiaochun Wei
- The Second Hospital of Shanxi Medical University, Taiyuan, 030001, China
| | - Guoqing Du
- Shi's Center of Orthopedics and Traumatology, Shuguang Hospital Affiliated to Shanghai University of TCM, Shanghai, 201203, China
| | - Dennis Wei
- Northeastern University, Boston, MA, 02115, USA
| | - Lei Wei
- Department of Orthopedics, Warren Alpert Medical School of Brown University / RIH, Coro West/402H, 1 Hoppin St, Providence, RI, 02903, USA.
| |
Collapse
|
29
|
Zhu K, Wang D, Li Z, Du G, Guo Q, Wu T, Li J. Heterogeneity of Triple-Negative Breast Cancer: Differences in Clinicopathologic and Ultrasound Features Between Premenopausal and Postmenopausal Patients. J Ultrasound Med 2020; 39:919-927. [PMID: 31737929 DOI: 10.1002/jum.15174] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Revised: 10/10/2019] [Accepted: 10/11/2019] [Indexed: 06/10/2023]
Abstract
OBJECTIVES The aim of this study was to determine whether any salient differences exist in triple-negative breast cancer (TNBC) between premenopausal and postmenopausal patients by comprehensively comparing the ultrasound (US) and clinicopathologic features of these patients. METHODS A detailed evaluation of the US and clinicopathologic features of 60 tumors from 60 patients with a diagnosis of TNBC (36 premenopausal and 24 postmenopausal women) was conducted in this retrospective study. RESULTS Triple-negative breast cancer in premenopausal patients was more likely to show a round or oval shape and microlobulated margins, more commonly exerted effects on surrounding tissue, and showed grade 3 blood flow according to the method of Adler et al (Ultrasound Med Biol 1990; 16:553-559) compared with tumors in postmenopausal women. Triple-negative breast cancer in postmenopausal patients showed some similar US features as those observed in estrogen receptor-positive tumors, including irregular shapes, angular or spiculated margins, and nonparallel growth to the skin (P < .05 for all). CONCLUSIONS Although US cannot be used to unequivocally identify TNBC, it can distinguish some salient US features regarding TNBC between premenopausal and postmenopausal women. Such information can then provide some valuable predictive information on the diagnosis of TNBC for clinicians.
Collapse
Affiliation(s)
- Kai Zhu
- First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Dongmo Wang
- Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Ziyao Li
- Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Guoqing Du
- Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Qiang Guo
- Jinshan Branch of Shanghai Sixth People's Hospital, affiliated with Shanghai Jiaotong University, Shanghai, China
| | - Tong Wu
- Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Juan Li
- Second Affiliated Hospital of Harbin Medical University, Harbin, China
| |
Collapse
|
30
|
Leone M, Romeijn S, Du G, Le Dévédec S, Vrieling H, O'Mahony C, Bouwstra J, Kersten G. Diphtheria toxoid dissolving microneedle vaccination: Adjuvant screening and effect of repeated-fractional dose administration. Int J Pharm 2020; 580:119182. [DOI: 10.1016/j.ijpharm.2020.119182] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Revised: 02/25/2020] [Accepted: 02/25/2020] [Indexed: 12/13/2022]
|
31
|
Li H, Liu C, Zhang G, Wang C, Sun P, Du G, Tian J. The early alteration of left ventricular strain and dys‐synchrony index in breast cancer patients undergoing anthracycline therapy using layer‐specific strain analysis. Echocardiography 2019; 36:1675-1681. [PMID: 31454106 DOI: 10.1111/echo.14460] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Accepted: 07/30/2019] [Indexed: 11/29/2022] Open
Affiliation(s)
- Hairu Li
- Department of Ultrasound The Second Affiliated Hospital of Harbin Medical University Harbin China
- Key Laboratories of Myocardial Ischemia Mechanism and Treatment Ministry of Education Harbin Medical University Harbin China
| | - Cong Liu
- Department of Ultrasound The Second Affiliated Hospital of Harbin Medical University Harbin China
| | - Ge Zhang
- Department of Ultrasound The Second Affiliated Hospital of Harbin Medical University Harbin China
| | - Chao Wang
- Department of Ultrasound The Second Affiliated Hospital of Harbin Medical University Harbin China
- Key Laboratories of Myocardial Ischemia Mechanism and Treatment Ministry of Education Harbin Medical University Harbin China
| | - Ping Sun
- Department of Ultrasound The Second Affiliated Hospital of Harbin Medical University Harbin China
- Key Laboratories of Myocardial Ischemia Mechanism and Treatment Ministry of Education Harbin Medical University Harbin China
| | - Guoqing Du
- Department of Ultrasound The Second Affiliated Hospital of Harbin Medical University Harbin China
- Key Laboratories of Myocardial Ischemia Mechanism and Treatment Ministry of Education Harbin Medical University Harbin China
| | - Jiawei Tian
- Department of Ultrasound The Second Affiliated Hospital of Harbin Medical University Harbin China
- Key Laboratories of Myocardial Ischemia Mechanism and Treatment Ministry of Education Harbin Medical University Harbin China
| |
Collapse
|
32
|
Huang Y, Liu J, Zhang J, Jin S, Jiang Y, Zhang S, Li Z, Zhi C, Du G, Zhou H. Flexible quasi-solid-state zinc ion batteries enabled by highly conductive carrageenan bio-polymer electrolyte. RSC Adv 2019; 9:16313-16319. [PMID: 35516353 PMCID: PMC9064380 DOI: 10.1039/c9ra01120j] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [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: 02/13/2019] [Accepted: 05/17/2019] [Indexed: 01/05/2023] Open
Abstract
Flexible Zn–MnO2 batteries as wearable electronic power source have attracted much attention in recent years due to their low cost and high safety. To promote the practical application of flexible Zn–MnO2 batteries, it is imperative to develop flexible, mechanically robust and high performance solid state electrolyte. Herein, we construct a rechargeable quasi-solid-state zinc ion battery using kappa-carrageenan bio-polymer electrolyte. The kappa-carrageenan electrolyte is eco-friendly, low cost, and highly conductive (3.32 × 10−2 S cm−1 at room temperature). The mechanical robustness of kappa-carrageenan electrolyte is further reinforced by using a rice paper as scaffold. Benefiting from high ionic conductivity of the bio-polymer electrolyte, our zinc ion battery delivers a significant high energy density and power density (400 W h kg−1 and 7.9 kW kg−1, respectively), high specific capacity (291.5 mA h g−1 at 0.15 A g−1), fast charging and discharging capability (120.0 mA h g−1 at 6.0 A g−1). The zinc ion battery with bio-polymer electrolyte also shows excellent cycling stability and high bending durability. This work brings new research opportunities in developing low-cost flexible solid-state zinc ion batteries using green natural polymer. The zinc ion batteries with KCR electrolyte show a high specific capacity and fast charging and discharging capability.![]()
Collapse
Affiliation(s)
- Yuan Huang
- School of Electronic and Computer Engineering
- Peking University Shenzhen Graduate School
- Shenzhen 518055
- PR China
| | - Jiuwei Liu
- School of Electronic and Computer Engineering
- Peking University Shenzhen Graduate School
- Shenzhen 518055
- PR China
| | - Jiyan Zhang
- School of Electronic and Computer Engineering
- Peking University Shenzhen Graduate School
- Shenzhen 518055
- PR China
| | - Shunyu Jin
- Center for Micro- and Nanoscale Research and Fabrication
- University of Science and Technology of China
- Hefei
- PR China
| | - Yixiang Jiang
- State Key Laboratory of Chemical Oncogenomics
- School of Chemical Biology & Biotechnology
- Peking University Shenzhen Graduate School
- Shenzhen 518055
- China
| | - Shengdong Zhang
- School of Electronic and Computer Engineering
- Peking University Shenzhen Graduate School
- Shenzhen 518055
- PR China
| | - Zigang Li
- State Key Laboratory of Chemical Oncogenomics
- School of Chemical Biology & Biotechnology
- Peking University Shenzhen Graduate School
- Shenzhen 518055
- China
| | - Chunyi Zhi
- Department of Materials Science and Engineering
- City University of Hong Kong
- Kowloon
- China
| | - Guoqing Du
- Zinergy Shenzhen Limited
- Taohuayuan Science Park
- Shenzhen 518101
- China
| | - Hang Zhou
- School of Electronic and Computer Engineering
- Peking University Shenzhen Graduate School
- Shenzhen 518055
- PR China
| |
Collapse
|
33
|
Shao Z, Wu J, Du G, Song H, Li SH, He S, Li J, Wu J, Weisel RD, Yuan H, Li RK. Young bone marrow Sca-1 cells protect aged retina from ischaemia-reperfusion injury through activation of FGF2. J Cell Mol Med 2018; 22:6176-6189. [PMID: 30255622 PMCID: PMC6237572 DOI: 10.1111/jcmm.13905] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Revised: 06/14/2018] [Accepted: 08/19/2018] [Indexed: 12/14/2022] Open
Abstract
Retinal ganglion cell apoptosis and optic nerve degeneration are prevalent in aged patients, which may be related to the decrease in bone marrow (BM) stem cell number/function because of the possible cross‐talk between the two organs. This pathological process is accelerated by retinal ischaemia‐reperfusion (I/R) injury. This study investigated whether young BM stem cells can regenerate and repair the aged retina after acute I/R injury. Young BM stem cell antigen 1 positive (Sca‐1+) or Sca‐1− cells were transplanted into lethally irradiated aged recipient mice to generate Sca‐1+ and Sca‐1− chimaeras, respectively. The animals were housed for 3 months to allow the young Sca‐1 cells to repopulate in the BM of aged mice. Retinal I/R was then induced by elevation of intraocular pressure. Better preservation of visual function was found in Sca‐1+ than Sca‐1− chimaeras 7 days after injury. More Sca‐1+ cells homed to the retina than Sca‐1− cells and more cells differentiated into glial and microglial cells in the Sca‐1+ chimaeras. After injury, Sca‐1+ cells in the retina reduced host cellular apoptosis, which was associated with higher expression of fibroblast growth factor 2 (FGF2) in the Sca‐1+ chimaeras. Young Sca‐1+ cells repopulated the stem cells in the aged retina and diminished cellular apoptosis after acute I/R injury through FGF2 and Akt signalling pathways.
Collapse
Affiliation(s)
- Zhengbo Shao
- Department of Ophthalmology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China.,Research Institute, Second Affiliated Hospital of Harbin Medical University, Harbin, China.,Laboratory of Medical Genetics, Harbin Medical University, Harbin, China.,Division of Cardiovascular Surgery, Toronto General Hospital Research Institute, University Health Network, Toronto, ON, Canada
| | - Jie Wu
- Department of Ophthalmology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China.,Research Institute, Second Affiliated Hospital of Harbin Medical University, Harbin, China.,Laboratory of Medical Genetics, Harbin Medical University, Harbin, China.,Division of Cardiovascular Surgery, Toronto General Hospital Research Institute, University Health Network, Toronto, ON, Canada
| | - Guoqing Du
- Department of Ophthalmology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China.,Research Institute, Second Affiliated Hospital of Harbin Medical University, Harbin, China.,Laboratory of Medical Genetics, Harbin Medical University, Harbin, China.,Division of Cardiovascular Surgery, Toronto General Hospital Research Institute, University Health Network, Toronto, ON, Canada
| | - Huifang Song
- Division of Cardiovascular Surgery, Toronto General Hospital Research Institute, University Health Network, Toronto, ON, Canada.,Shanxi Medical University, Taiyuan, China
| | - Shu-Hong Li
- Division of Cardiovascular Surgery, Toronto General Hospital Research Institute, University Health Network, Toronto, ON, Canada
| | - Sheng He
- Division of Cardiovascular Surgery, Toronto General Hospital Research Institute, University Health Network, Toronto, ON, Canada.,Shanxi Medical University, Taiyuan, China
| | - Jiao Li
- Division of Cardiovascular Surgery, Toronto General Hospital Research Institute, University Health Network, Toronto, ON, Canada.,Department of Cardiology, Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Jun Wu
- Division of Cardiovascular Surgery, Toronto General Hospital Research Institute, University Health Network, Toronto, ON, Canada
| | - Richard D Weisel
- Division of Cardiovascular Surgery, Toronto General Hospital Research Institute, University Health Network, Toronto, ON, Canada.,Division of Cardiac Surgery, Department of Surgery, University of Toronto, Toronto, ON, Canada
| | - Huiping Yuan
- Department of Ophthalmology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China.,Research Institute, Second Affiliated Hospital of Harbin Medical University, Harbin, China.,Laboratory of Medical Genetics, Harbin Medical University, Harbin, China
| | - Ren-Ke Li
- Division of Cardiovascular Surgery, Toronto General Hospital Research Institute, University Health Network, Toronto, ON, Canada.,Division of Cardiac Surgery, Department of Surgery, University of Toronto, Toronto, ON, Canada
| |
Collapse
|
34
|
Liu K, Cao S, Du G, Baskin JM, Baskin CC, Bu H, Qi W, Ting L. Linking seed germination and plant height: a case study of a wetland community on the eastern Tibet Plateau. Plant Biol (Stuttg) 2018; 20:886-893. [PMID: 29779257 DOI: 10.1111/plb.12845] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [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: 11/16/2017] [Accepted: 05/15/2018] [Indexed: 06/08/2023]
Abstract
Seed germination is the earliest trait expressed in a plant's life history, and it can directly affect the expression of post-germination traits. Plant height is central to plant ecological strategies, because it is a major determinant of the ability of a species to compete for light. Thus, linking seed germination and plant height at the community level is very important to understanding plant fitness and community structure. Here, we tested storage condition and temperature requirements for germination of 31 species from a wetland plant community on the eastern Tibet Plateau and analysed correlation of germination traits with plant height in relation to storage condition. Germination percentage was positively related to plant height, and this relationship disappeared when seeds were incubated at a low temperature (i.e. 5 °C) or after they were stored under wet-cold conditions. The response of seeds to dry+wet-cold storage was negatively related to plant height. Based on the scores of each species on the first two principal components derived from PCA, species were classified into two categories by hierarchical clustering, and there was a significant difference between germination and plant height of species in these two categories. These results suggest that the requirements for seed germination together with seasonal change in environmental conditions determine the window for germination and, in turn, plant growth season and resource utilisation and ultimately plant height.
Collapse
Affiliation(s)
- K Liu
- State Key Laboratory of Grassland and Agro-ecosystems, Lanzhou University, Lanzhou, China
| | - S Cao
- State Key Laboratory of Grassland and Agro-ecosystems, Lanzhou University, Lanzhou, China
| | - G Du
- State Key Laboratory of Grassland and Agro-ecosystems, Lanzhou University, Lanzhou, China
| | - J M Baskin
- Department of Biology, University of Kentucky, Lexington, USA
| | - C C Baskin
- Department of Biology, University of Kentucky, Lexington, USA
- Department of Plant and Soil Sciences, University of Kentucky, Lexington, USA
| | - H Bu
- State Key Laboratory of Grassland and Agro-ecosystems, Lanzhou University, Lanzhou, China
| | - W Qi
- State Key Laboratory of Grassland and Agro-ecosystems, Lanzhou University, Lanzhou, China
| | - L Ting
- State Key Laboratory of Grassland and Agro-ecosystems, Lanzhou University, Lanzhou, China
| |
Collapse
|
35
|
Du G, Zhuang P, Hallett M, Zhang YQ, Li JY, Li YJ. Properties of oscillatory neuronal activity in the basal ganglia and thalamus in patients with Parkinson's disease. Transl Neurodegener 2018; 7:17. [PMID: 30065816 PMCID: PMC6062949 DOI: 10.1186/s40035-018-0123-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [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: 05/05/2018] [Accepted: 07/03/2018] [Indexed: 01/28/2023] Open
Abstract
Background The cardinal features of Parkinson’s disease (PD) are bradykinesia, rigidity and rest tremor. Abnormal activity in the basal ganglia is predicted to underlie the mechanism of motor symptoms. This study aims to characterize properties of oscillatory activity in the basal ganglia and motor thalamus in patients with PD. Methods Twenty-nine patients with PD who underwent bilateral or unilateral electrode implantation for subthalamic nucleus (STN) DBS (n = 11), unilateral pallidotomy (n = 9) and unilateral thalamotomy (n = 9) were studied. Microelectrode recordings in the STN, globus pallidus internus (GPi) and ventral oral posterior/ventral intermediate of thalamus (Vop/Vim) were performed. Electromyography of the contralateral limbs was recorded. Single unit characteristics including interspike intervals were analyzed. Spectral and coherence analyses were assessed. Mean spontaneous firing rate (MSFR) of neurons was calculated. Analysis of variance and X2 test were performed. Results Of 76 STN neurons, 39.5% were 4–6 Hz band oscillatory neurons and 28.9% were β frequency band (βFB) oscillatory neurons. The MSFR was 44.2 ± 7.6 Hz. Of 62 GPi neurons, 37.1% were 4–6 Hz band oscillatory neurons and 27.4% were βFB neurons. The MSFR was 80.9 ± 9.6 Hz. Of 44 Vop neurons, 65.9% were 4–6 Hz band oscillatory neurons and 9% were βFB neurons. The MSFR was 24.4 ± 4.2 Hz. Of 30 Vim oscillatory neurons, 70% were 4–6 Hz band oscillatory neurons and 13.3% were βFB neurons. The MSFR was 30.3 ± 3.6 Hz. Further analysis indicated that proportion of βFB oscillatory neurons in STN and GPi was higher than that of similar neurons in the Vop and Vim (P < 0.05). Conversely, the proportion of 4–6 Hz band oscillatory neurons and tremor related neurons in the Vim and Vop was higher than that of STN and GPi (P < 0.05). The highest MSFR was for GPi oscillatory neurons whereas the lowest MSFR was for Vop oscillatory neurons (P < 0.005). Conclusion The alterations in neuronal activity in basal ganglia play a critical role in generation of parkinsonism. β oscillatory activity is more prominent in basal ganglia than in thalamus suggesting that the activity likely results from dopaminergic depletion. While both basal ganglia and thalamus have tremor activity, the thalamus appears to play a more important role in tremor production, and basal ganglia β oscillatory activity might be the trigger.
Collapse
Affiliation(s)
- G Du
- 1Beijing Institute of Functional Neurosurgery, Xuanwu Hospital, Capital Medical University, No.45 Changchun Street , Xicheng District, Beijing, 100053 China
| | - P Zhuang
- 1Beijing Institute of Functional Neurosurgery, Xuanwu Hospital, Capital Medical University, No.45 Changchun Street , Xicheng District, Beijing, 100053 China.,3Center of Parkinson's disease, Beijing Institute for Brain Disorders, Beijing, China.,4Key Laboratory of Neurodegenerative Diseases (Capital Medical University), Ministry of Education, Beijing, China
| | - M Hallett
- Human Motor Control Section, Medical Neurology Branch, NINDS, NIH, Bethesda, MD USA
| | - Y-Q Zhang
- 1Beijing Institute of Functional Neurosurgery, Xuanwu Hospital, Capital Medical University, No.45 Changchun Street , Xicheng District, Beijing, 100053 China
| | - J-Y Li
- 1Beijing Institute of Functional Neurosurgery, Xuanwu Hospital, Capital Medical University, No.45 Changchun Street , Xicheng District, Beijing, 100053 China
| | - Y-J Li
- 1Beijing Institute of Functional Neurosurgery, Xuanwu Hospital, Capital Medical University, No.45 Changchun Street , Xicheng District, Beijing, 100053 China
| |
Collapse
|
36
|
Wang D, Zhu K, Tian J, Li Z, Du G, Guo Q, Wu T, Li J. Clinicopathological and Ultrasonic Features of Triple-Negative Breast Cancers: A Comparison with Hormone Receptor-Positive/Human Epidermal Growth Factor Receptor-2-Negative Breast Cancers. Ultrasound Med Biol 2018; 44:1124-1132. [PMID: 29482888 DOI: 10.1016/j.ultrasmedbio.2018.01.013] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [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: 07/31/2017] [Revised: 11/23/2017] [Accepted: 01/17/2018] [Indexed: 06/08/2023]
Abstract
The purpose of this study was to analyze the clinicopathological and ultrasound characteristics of triple-negative breast cancers (TNBCs) and compare these findings with those for hormone receptor-positive (HR-positive)/human epidermal growth factor receptor-2-negative (HER-2-negative) tumors. Seventy-five TNBCs and 135 HR-positive/HER-2-negative breast cancers were reviewed. Data from conventional ultrasound, Doppler vascularity and elastography were included in the analysis. TNBCs had a higher histologic grade and Ki-67 level. On ultrasound, TNBCs often appeared as microlobulated, markedly hypo-echoic masses with an abrupt interface boundary, posterior acoustic enhancement, absence of calcifications and more characteristics of surrounding tissue. Results from multivariate regression analysis revealed that margin, posterior acoustic features and surrounding tissue features of tumors were independent predictive factors in differentiating TNBCs from HR-positive/HER-2-negative tumors. Our results suggest that a thorough evaluation of sonographic findings might be useful in discriminating between TNBCs and HR-positive/HER-2-negative tumors, which may provide accurate evidence for clinical early diagnosis.
Collapse
Affiliation(s)
- Dongmo Wang
- Ultrasound Department, Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Kai Zhu
- Radiology Department, First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Jiawei Tian
- Ultrasound Department, Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China.
| | - Ziyao Li
- Ultrasound Department, Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Guoqing Du
- Ultrasound Department, Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Qiang Guo
- Ultrasound Department, Jinshan Branch of Shanghai Sixth People's Hospital Affiliated to Shanghai Jiaotong University, Shanghai, China
| | - Tong Wu
- Ultrasound Department, Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Juan Li
- Pathology Department, Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
| |
Collapse
|
37
|
Zhang M, Yang L, Du G, Duan S, Liu D, Gao X, Li D. Early diagnosis of infection occurs in burned patients and verification in vitro. Int J Lab Hematol 2018; 40:448-452. [PMID: 29575661 DOI: 10.1111/ijlh.12810] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2017] [Accepted: 02/06/2018] [Indexed: 11/27/2022]
Affiliation(s)
- M. Zhang
- First Affiliated Hospital of Guangxi Medical University; Nanning Guangxi China
| | - L. Yang
- First Affiliated Hospital of Guangxi Medical University; Nanning Guangxi China
- First Affiliated Hospital of Guangxi University of Chinese Medicine; Nanning Guangxi China
| | - G. Du
- First Affiliated Hospital of Guangxi Medical University; Nanning Guangxi China
| | - S. Duan
- Medical College of Guangxi University of Science and Technology; Liuzhou Guangxi China
| | - D. Liu
- First Affiliated Hospital of Guangxi Medical University; Nanning Guangxi China
| | - X. Gao
- First Affiliated Hospital of Guangxi Medical University; Nanning Guangxi China
| | - D. Li
- First Affiliated Hospital of Guangxi Medical University; Nanning Guangxi China
| |
Collapse
|
38
|
Huang G, Ye L, Du G, Huang Y, Wu Y, Ge S, Yang Z, Zhu G. Effects of curcumin plus Soy oligosaccharides on intestinal flora of rats with ulcerative colitis. Cell Mol Biol (Noisy-le-grand) 2017; 63:20-25. [PMID: 28838334 DOI: 10.14715/cmb/2017.63.7.3] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [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: 08/21/2017] [Indexed: 12/16/2023]
Abstract
To explore the therapeutic effect of curcumin (Cur) and soybean oligosaccharides (SBOS) on ulcerative colitis (UC) through testing the intestinal flora and ulcerative colitis (UC). 80 male SD rats were selected divided into four groups with 20 rats in each group: normal group, sulfasalazine (SASP) group, model group and group of curcumin plus soy oligosaccharide. All animals were treated for 4 weeks. In the fifth week rats were decapitated. Macroscopic damage scores of colonic mucosa were calculated. A 4mL blood sample was taken to detect the contents of serum tumor necrosis factor -α (TNF-α) and interleukin 8 (IL-8) by the double antibody sandwich ABC-ELISA method (enzyme-linked immunosorbent assay). Colonic tissues with the most obvious lesions were obtained using a surgical scissor. A routine hematoxylin-eosin (HE) staining method was used to stain pathological specimens and images of staining results were obtained. Histological injury scores of colonic mucosa were calculated. Ulcerative colitis model rats had the highest macroscopic damage scores and histological injury scores of colonic mucosa. After treatment the contents of TNF-α and IL-8 decreased significantly in the group of curcumin plus soy oligosaccharide compared with the model group with statistical significance (P <0.01) while the contents were close to those in the SASP group. There was no statistical significance (P> 0.05). The treatment could decrease TNF-α and IL- 8 expression and reduce colonic mucosa inflammation and tissue damage.
Collapse
Affiliation(s)
- G Huang
- Department of Integrated Traditional Chinese and Western Medicine, the First Affiliated Hospital of Nanchang University, No. 17 Yongwai Street, Nanchang, Jiangxi, 330006, China
| | - L Ye
- Department of Surgery, the First Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - G Du
- Department of Surgery, the First Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Y Huang
- Department of Integrated Traditional Chinese and Western Medicine, the affiliated Hengyang hospital of Hunan university of Chinese medicine, Hunan Hengyang 421001, China
| | - Y Wu
- Department of Integrated Traditional Chinese and Western Medicine, the First Affiliated Hospital of Nanchang University, No. 17 Yongwai Street, Nanchang, Jiangxi, 330006, China
| | - S Ge
- Department of infectious disease, the First Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Z Yang
- Department of endocrinology, the First Affiliated Hospital of Nanchang University, No. 17 Yongwai Street, Nanchang, Jiangxi 330006, China
| | - G Zhu
- Department of Surgery, the First Affiliated Hospital of Nanchang University, Nanchang 330006, China
| |
Collapse
|
39
|
Du G, Lewis MM, Kanekar S, Sterling NW, He L, Kong L, Li R, Huang X. Combined Diffusion Tensor Imaging and Apparent Transverse Relaxation Rate Differentiate Parkinson Disease and Atypical Parkinsonism. AJNR Am J Neuroradiol 2017; 38:966-972. [PMID: 28364007 DOI: 10.3174/ajnr.a5136] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [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] [Received: 09/22/2016] [Accepted: 01/11/2017] [Indexed: 12/12/2022]
Abstract
BACKGROUND AND PURPOSE Both diffusion tensor imaging and the apparent transverse relaxation rate have shown promise in differentiating Parkinson disease from atypical parkinsonism (particularly multiple system atrophy and progressive supranuclear palsy). The objective of the study was to assess the ability of DTI, the apparent transverse relaxation rate, and their combination for differentiating Parkinson disease, multiple system atrophy, progressive supranuclear palsy, and controls. MATERIALS AND METHODS A total of 106 subjects (36 controls, 35 patients with Parkinson disease, 16 with multiple system atrophy, and 19 with progressive supranuclear palsy) were included. DTI and the apparent transverse relaxation rate measures from the striatal, midbrain, limbic, and cerebellar regions were obtained and compared among groups. The discrimination performance of DTI and the apparent transverse relaxation rate among groups was assessed by using Elastic-Net machine learning and receiver operating characteristic curve analysis. RESULTS Compared with controls, patients with Parkinson disease showed significant apparent transverse relaxation rate differences in the red nucleus. Compared to those with Parkinson disease, patients with both multiple system atrophy and progressive supranuclear palsy showed more widespread changes, extending from the midbrain to striatal and cerebellar structures. The pattern of changes, however, was different between the 2 groups. For instance, patients with multiple system atrophy showed decreased fractional anisotropy and an increased apparent transverse relaxation rate in the subthalamic nucleus, whereas patients with progressive supranuclear palsy showed an increased mean diffusivity in the hippocampus. Combined, DTI and the apparent transverse relaxation rate were significantly better than DTI or the apparent transverse relaxation rate alone in separating controls from those with Parkinson disease/multiple system atrophy/progressive supranuclear palsy; controls from those with Parkinson disease; those with Parkinson disease from those with multiple system atrophy/progressive supranuclear palsy; and those with Parkinson disease from those with multiple system atrophy; but not those with Parkinson disease from those with progressive supranuclear palsy, or those with multiple system atrophy from those with progressive supranuclear palsy. CONCLUSIONS DTI and the apparent transverse relaxation rate provide different but complementary information for different parkinsonisms. Combined DTI and apparent transverse relaxation rate may be a superior marker for the differential diagnosis of parkinsonisms.
Collapse
Affiliation(s)
- G Du
- From the Departments of Neurology (G.D., M.M.L., N.W.S., L.H., X.H.)
| | - M M Lewis
- From the Departments of Neurology (G.D., M.M.L., N.W.S., L.H., X.H.)
- Pharmacology (M.M.L., X.H.)
| | | | - N W Sterling
- From the Departments of Neurology (G.D., M.M.L., N.W.S., L.H., X.H.)
| | - L He
- From the Departments of Neurology (G.D., M.M.L., N.W.S., L.H., X.H.)
- Department of Public Health (L.H.), Shanxi Medical University, Taiyuan, China
| | - L Kong
- Public Health Sciences (L.K.), Pennsylvania State University-Milton S. Hershey Medical Center, Hershey, Pennsylvania
| | - R Li
- Department of Statistics (R.L.), Pennsylvania State University, University Park, Pennsylvania
| | - X Huang
- From the Departments of Neurology (G.D., M.M.L., N.W.S., L.H., X.H.)
- Radiology (S.K., X.H.)
- Pharmacology (M.M.L., X.H.)
- Neurosurgery (X.H.)
- Kinesiology (X.H.)
- Bioengineering (X.H.)
| |
Collapse
|
40
|
Bins S, van Doorn L, Phelps MA, Gibson AA, Hu S, Li L, Vasilyeva A, Du G, Hamberg P, Eskens F, de Bruijn P, Sparreboom A, Mathijssen R, Baker SD. Influence of OATP1B1 Function on the Disposition of Sorafenib-β-D-Glucuronide. Clin Transl Sci 2017; 10:271-279. [PMID: 28371445 PMCID: PMC5504481 DOI: 10.1111/cts.12458] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Accepted: 01/27/2017] [Indexed: 01/05/2023] Open
Abstract
The oral multikinase inhibitor sorafenib undergoes extensive UGT1A9-mediated formation of sorafenib-β-D-glucuronide (SG). Using transporter-deficient mouse models, it was previously established that SG can be extruded into bile by ABCC2 or follow a liver-to-blood shuttling loop via ABCC3-mediated efflux into the systemic circulation, and subsequent uptake in neighboring hepatocytes by OATP1B-type transporters. Here we evaluated the possibility that this unusual process, called hepatocyte hopping, is also operational in humans and can be modulated through pharmacological inhibition. We found that SG transport by OATP1B1 or murine Oatp1b2 was effectively inhibited by rifampin, and that this agent can significantly increase plasma levels of SG in wildtype mice, but not in Oatp1b2-deficient animals. In human subjects receiving sorafenib, rifampin acutely increased the systemic exposure to SG. Our study emphasizes the need to consider hepatic handling of xenobiotic glucuronides in the design of drug-drug interaction studies of agents that undergo extensive phase II conjugation.
Collapse
Affiliation(s)
- S Bins
- Department of Medical Oncology, Erasmus MC Cancer Institute, Wytemaweg, Rotterdam, The Netherlands
| | - L van Doorn
- Department of Medical Oncology, Erasmus MC Cancer Institute, Wytemaweg, Rotterdam, The Netherlands
| | - M A Phelps
- Division of Pharmaceutics and Pharmaceutical Chemistry, College of Pharmacy, Ohio State University, Columbus, Ohio, USA
| | - A A Gibson
- Division of Pharmaceutics and Pharmaceutical Chemistry, College of Pharmacy, Ohio State University, Columbus, Ohio, USA
| | - S Hu
- Division of Pharmaceutics and Pharmaceutical Chemistry, College of Pharmacy, Ohio State University, Columbus, Ohio, USA
| | - L Li
- Department of Pharmaceutical Sciences, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - A Vasilyeva
- Department of Pharmaceutical Sciences, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - G Du
- Department of Pharmaceutical Sciences, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - P Hamberg
- Department of Internal Medicine, St. Franciscus Gasthuis, Rotterdam, The Netherlands
| | - Falm Eskens
- Department of Medical Oncology, Erasmus MC Cancer Institute, Wytemaweg, Rotterdam, The Netherlands
| | - P de Bruijn
- Department of Medical Oncology, Erasmus MC Cancer Institute, Wytemaweg, Rotterdam, The Netherlands
| | - A Sparreboom
- Department of Medical Oncology, Erasmus MC Cancer Institute, Wytemaweg, Rotterdam, The Netherlands.,Division of Pharmaceutics and Pharmaceutical Chemistry, College of Pharmacy, Ohio State University, Columbus, Ohio, USA
| | - Rhj Mathijssen
- Department of Medical Oncology, Erasmus MC Cancer Institute, Wytemaweg, Rotterdam, The Netherlands
| | - S D Baker
- Division of Pharmaceutics and Pharmaceutical Chemistry, College of Pharmacy, Ohio State University, Columbus, Ohio, USA
| |
Collapse
|
41
|
Drenberg CD, Gibson AA, Pounds SB, Shi L, Rhinehart DP, Li L, Hu S, Du G, Nies AT, Schwab M, Pabla N, Blum W, Gruber TA, Baker SD, Sparreboom A. OCTN1 Is a High-Affinity Carrier of Nucleoside Analogues. Cancer Res 2017; 77:2102-2111. [PMID: 28209616 DOI: 10.1158/0008-5472.can-16-2548] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Revised: 01/06/2017] [Accepted: 01/24/2017] [Indexed: 11/16/2022]
Abstract
Resistance to xenobiotic nucleosides used to treat acute myeloid leukemia (AML) and other cancers remains a major obstacle to clinical management. One process suggested to participate in resistance is reduced uptake into tumor cells via nucleoside transporters, although precise mechanisms are not understood. Through transcriptomic profiling, we determined that low expression of the ergothioneine transporter OCTN1 (SLC22A4; ETT) strongly predicts poor event-free survival and overall survival in multiple cohorts of AML patients receiving treatment with the cytidine nucleoside analogue cytarabine. Cell biological studies confirmed OCTN1-mediated transport of cytarabine and various structurally related cytidine analogues, such as 2'deoxycytidine and gemcitabine, occurs through a saturable process that is highly sensitive to inhibition by the classic nucleoside transporter inhibitors dipyridamole and nitrobenzylmercaptopurine ribonucleoside. Our findings have immediate clinical implications given the potential of the identified transport system to help refine strategies that could improve patient survival across multiple cancer types where nucleoside analogues are used in cancer treatment. Cancer Res; 77(8); 2102-11. ©2017 AACR.
Collapse
Affiliation(s)
- Christina D Drenberg
- Division of Pharmaceutics, College of Pharmacy, The Ohio State University, Columbus, Ohio
| | - Alice A Gibson
- Division of Pharmaceutics, College of Pharmacy, The Ohio State University, Columbus, Ohio
| | - Stanley B Pounds
- Department of Biostatistics, St. Jude Children's Research Hospital, Memphis, Tennessee
| | - Lei Shi
- Department of Biostatistics, St. Jude Children's Research Hospital, Memphis, Tennessee
| | - Dena P Rhinehart
- Department of Pharmaceutical Sciences, St. Jude Children's Research Hospital, Memphis, Tennessee
| | - Lie Li
- Department of Pharmaceutical Sciences, St. Jude Children's Research Hospital, Memphis, Tennessee
| | - Shuiying Hu
- Division of Pharmaceutics, College of Pharmacy, The Ohio State University, Columbus, Ohio
| | - Guoqing Du
- Department of Oncology, St. Jude Children's Research Hospital, Memphis, Tennessee
| | - Anne T Nies
- Dr. Margarete Fischer-Bosch Institute of Clinical Pharmacology, Stuttgart, Germany.,University of Tübingen, Tübingen, Germany
| | - Matthias Schwab
- Dr. Margarete Fischer-Bosch Institute of Clinical Pharmacology, Stuttgart, Germany.,Department of Clinical Pharmacology, University Hospital, Tübingen, Germany
| | - Navjotsingh Pabla
- Division of Pharmaceutics, College of Pharmacy, The Ohio State University, Columbus, Ohio
| | - William Blum
- Division of Hematology, The Department of Internal Medicine, The Ohio State University Comprehensive Cancer Center, The Ohio State University, Columbus, Ohio
| | - Tanja A Gruber
- Department of Oncology, St. Jude Children's Research Hospital, Memphis, Tennessee
| | - Sharyn D Baker
- Division of Pharmaceutics, College of Pharmacy, The Ohio State University, Columbus, Ohio.
| | - Alex Sparreboom
- Division of Pharmaceutics, College of Pharmacy, The Ohio State University, Columbus, Ohio.
| |
Collapse
|
42
|
Cao T, Zhang H, Zhou L, Wang Y, Du G, Yao H, Wang Y, Luo Q, Chen F, Wang W, Tang G. In vitrocell culture system optimization of keratinocytes from oral lichen planus (OLP) patients. Oral Dis 2016; 23:225-232. [PMID: 27763705 DOI: 10.1111/odi.12599] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2016] [Revised: 09/24/2016] [Accepted: 10/17/2016] [Indexed: 11/26/2022]
Affiliation(s)
- T Cao
- Department of Oral Medicine; Shanghai Ninth People's Hospital; Shanghai Jiao Tong University School of Medicine; Shanghai China
- Department of Endodontics and Oral Medicine; Nantong Stomatological Hospital; Nantong China
| | - H Zhang
- Department of Clinical Immunology; Shanghai Ninth People's Hospital; Shanghai Jiao Tong University School of Medicine; Shanghai China
| | - L Zhou
- Department of Oral Medicine; Shanghai Ninth People's Hospital; Shanghai Jiao Tong University School of Medicine; Shanghai China
| | - Y Wang
- Department of Oral Medicine; Shanghai Ninth People's Hospital; Shanghai Jiao Tong University School of Medicine; Shanghai China
| | - G Du
- Department of Oral Medicine; Shanghai Ninth People's Hospital; Shanghai Jiao Tong University School of Medicine; Shanghai China
| | - H Yao
- Department of Oral Medicine; Shanghai Ninth People's Hospital; Shanghai Jiao Tong University School of Medicine; Shanghai China
| | - Y Wang
- Department of Oral Medicine; Shanghai Ninth People's Hospital; Shanghai Jiao Tong University School of Medicine; Shanghai China
| | - Q Luo
- Department of Clinical Immunology; Shanghai Ninth People's Hospital; Shanghai Jiao Tong University School of Medicine; Shanghai China
| | - F Chen
- Department of Clinical Immunology; Shanghai Ninth People's Hospital; Shanghai Jiao Tong University School of Medicine; Shanghai China
| | - W Wang
- Department of Periodontology and Oral Medicine; Qingdao Stomatological Hospital; Qingdao China
| | - G Tang
- Department of Oral Medicine; Shanghai Ninth People's Hospital; Shanghai Jiao Tong University School of Medicine; Shanghai China
| |
Collapse
|
43
|
Loisel DA, Du G, Ahluwalia TS, Tisler CJ, Evans MD, Myers RA, Gangnon RE, Kreiner-Møller E, Bønnelykke K, Bisgaard H, Jackson DJ, Lemanske RF, Nicolae DL, Gern JE, Ober C. Genetic associations with viral respiratory illnesses and asthma control in children. Clin Exp Allergy 2016; 46:112-24. [PMID: 26399222 DOI: 10.1111/cea.12642] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2015] [Revised: 08/04/2015] [Accepted: 08/23/2015] [Indexed: 02/07/2023]
Abstract
BACKGROUND Viral respiratory infections can cause acute wheezing illnesses in children and exacerbations of asthma. OBJECTIVE We sought to identify variation in genes with known antiviral and pro-inflammatory functions to identify specific associations with more severe viral respiratory illnesses and the risk of virus-induced exacerbations during the peak fall season. METHODS The associations between genetic variation at 326 SNPs in 63 candidate genes and 10 phenotypes related to viral respiratory infection and asthma control were examined in 226 children enrolled in the RhinoGen study. Replication of asthma control phenotypes was performed in 2128 children in the Copenhagen Prospective Study on Asthma in Childhood (COPSAC). Significant associations in RhinoGen were further validated using virus-induced wheezing illness and asthma phenotypes in an independent sample of 122 children enrolled in the Childhood Origins of Asthma (COAST) birth cohort study. RESULTS A significant excess of P values smaller than 0.05 was observed in the analysis of the 10 RhinoGen phenotypes. Polymorphisms in 12 genes were significantly associated with variation in the four phenotypes showing a significant enrichment of small P values. Six of those genes (STAT4, JAK2, MX1, VDR, DDX58, and EIF2AK2) also showed significant associations with asthma exacerbations in the COPSAC study or with asthma or virus-induced wheezing phenotypes in the COAST study. CONCLUSIONS We identified genetic factors contributing to individual differences in childhood viral respiratory illnesses and virus-induced exacerbations of asthma. Defining mechanisms of these associations may provide insight into the pathogenesis of viral respiratory infections and virus-induced exacerbations of asthma.
Collapse
Affiliation(s)
- D A Loisel
- Department of Human Genetics, University of Chicago, Chicago, IL, USA.,Department of Biology, Saint Michael's College, Colchester, VT, USA
| | - G Du
- Department of Human Genetics, University of Chicago, Chicago, IL, USA
| | - T S Ahluwalia
- COPSAC, Copenhagen Prospective Studies on Asthma in Childhood, Herlev and Gentofte Hospital, University of Copenhagen, Ledreborg Allé 34, DK-2820, Copenhagen, Denmark.,Steno Diabetes Center, Gentofte, Denmark
| | - C J Tisler
- Department of Pediatrics, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | - M D Evans
- Department of Biostatistics and Medical Informatics, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | - R A Myers
- Department of Human Genetics, University of Chicago, Chicago, IL, USA
| | - R E Gangnon
- Department of Biostatistics and Medical Informatics, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA.,Department of Population Health Sciences, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | - E Kreiner-Møller
- COPSAC, Copenhagen Prospective Studies on Asthma in Childhood, Herlev and Gentofte Hospital, University of Copenhagen, Ledreborg Allé 34, DK-2820, Copenhagen, Denmark
| | - K Bønnelykke
- COPSAC, Copenhagen Prospective Studies on Asthma in Childhood, Herlev and Gentofte Hospital, University of Copenhagen, Ledreborg Allé 34, DK-2820, Copenhagen, Denmark
| | - H Bisgaard
- COPSAC, Copenhagen Prospective Studies on Asthma in Childhood, Herlev and Gentofte Hospital, University of Copenhagen, Ledreborg Allé 34, DK-2820, Copenhagen, Denmark
| | - D J Jackson
- Department of Pediatrics, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | - R F Lemanske
- Department of Pediatrics, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA.,Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | - D L Nicolae
- Department of Human Genetics, University of Chicago, Chicago, IL, USA.,Department of Medicine, University of Chicago, Chicago, IL, USA.,Department of Statistics, University of Chicago, Chicago, IL, USA
| | - J E Gern
- Department of Pediatrics, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | - C Ober
- Department of Human Genetics, University of Chicago, Chicago, IL, USA
| |
Collapse
|
44
|
Affiliation(s)
- Alberto Battistel
- Laboratoire d'Electrochimie Physique et Analytique (LEPA); École Polytechnique Fédérale de Lausanne (EPFL; Switzerland
| | - Guoqing Du
- Energiespeicher- und Energiewandlersysteme; Universität Bremen; 28359 Bremen Germany
| | - Fabio La Mantia
- Energiespeicher- und Energiewandlersysteme; Universität Bremen; 28359 Bremen Germany
| |
Collapse
|
45
|
Affiliation(s)
- Guoqing Du
- Energiespeicher- und Energiewandlersysteme; Universität Bremen; D-28359 Bremen Germany
| | - Fabio La Mantia
- Energiespeicher- und Energiewandlersysteme; Universität Bremen; D-28359 Bremen Germany
| |
Collapse
|
46
|
|
47
|
Hu H, Chen M, Dai G, Du G, Wang X, He J, Zhao Y, Han D, Cao Y, Zheng Y, Ding D. An Inhibitory Role of Osthole in Rat MSCs Osteogenic Differentiation and Proliferation via Wnt/β-Catenin and Erk1/2-MAPK Pathways. Cell Physiol Biochem 2016; 38:2375-88. [PMID: 27300751 DOI: 10.1159/000445590] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/25/2016] [Indexed: 01/13/2023] Open
Abstract
BACKGROUND/AIMS Bone marrow-derived mesenchymal stem cells (MSCs) are responsible for new bone formation during adulthood. Accumulating evidences showed that Osthole promotes the osteogenic differentiation in primary osteoblasts. The aim of this study was to investigate whether Osthole exhibits a potential to stimulate the osteogenic differentiation of MSCs and the underlying mechanism. METHODS MSCs were treated with a gradient concentration of Osthole (6.25 µM, 12.5 µM, and 25 µM). Cell proliferation was assessed by western blotting with the proliferating cell nuclear antigen (PCNA) and Cyclin D1 antibodies, fluorescence activated cell sorting (FACS), and cell counting kit 8 (CCK8). MSCs were cultured in osteogenesis-induced medium for one or two weeks. The osteogenic differentiation of MSCs was estimated by Alkaline Phosphatase (ALP) staining, Alizarin red staining, Calcium influx, and quantitative PCR (qPCR). The underlying mechanism of Osthole-induced osteogenesis was further evaluated by western blotting with antibodies in Wnt/β-catenin, PI3K/Akt, BMPs/smad1/5/8, and MAPK signaling pathways. RESULTS Osthole inhibited proliferation of rat MSCs in a dose-dependent manner. Osthole suppressed osteogenic differentiation of rat MSCs by down-regulating the activities of Wnt/β-catenin and Erk1/2-MAPK signaling. CONCLUSIONS Osthole inhibits the proliferation and osteogenic differentiation of rat MSCs, which might be mediated through blocking the Wnt/β-catenin and Erk1/2-MAPK signaling pathways.
Collapse
|
48
|
Sterling N, Lewis M, Du G, Huang X. Structural Imaging and Parkinson's Disease: Moving Toward Quantitative Markers of Disease Progression. J Parkinsons Dis 2016; 6:557-67. [PMID: 27258697 PMCID: PMC5008231 DOI: 10.3233/jpd-160824] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Accepted: 04/27/2016] [Indexed: 12/16/2022]
Abstract
Parkinson's disease (PD) is a progressive age-related neurodegenerative disorder. Although the pathological hallmark of PD is dopaminergic cell death in the substantia nigra pars compacta, widespread neurodegenerative changes occur throughout the brain as disease progresses. Postmortem studies, for example, have demonstrated the presence of Lewy pathology, apoptosis, and loss of neurotransmitters and interneurons in both cortical and subcortical regions of PD patients. Many in vivo structural imaging studies have attempted to gauge PD-related pathology, particularly in gray matter, with the hope of identifying an imaging biomarker. Reports of brain atrophy in PD, however, have been inconsistent, most likely due to differences in the studied populations (i.e. different disease stages and/or clinical subtypes), experimental designs (i.e. cross-sectional vs. longitudinal), and image analysis methodologies (i.e. automatic vs. manual segmentation). This review attempts to summarize the current state of gray matter structural imaging research in PD in relationship to disease progression, reconciling some of the differences in reported results, and to identify challenges and future avenues.
Collapse
Affiliation(s)
- N.W. Sterling
- Department of Neurology, Pennsylvania State University-Milton S. Hershey Medical Center, Hershey, PA, USA
| | - M.M. Lewis
- Department of Neurology, Pennsylvania State University-Milton S. Hershey Medical Center, Hershey, PA, USA
- Department of Pharmacology, Pennsylvania State University-Milton S. Hershey Medical Center, Hershey, PA, USA
| | - G. Du
- Department of Neurology, Pennsylvania State University-Milton S. Hershey Medical Center, Hershey, PA, USA
| | - X. Huang
- Department of Neurology, Pennsylvania State University-Milton S. Hershey Medical Center, Hershey, PA, USA
- Department of Pharmacology, Pennsylvania State University-Milton S. Hershey Medical Center, Hershey, PA, USA
- Department of Radiology, Pennsylvania State University-Milton S. Hershey Medical Center, Hershey, PA, USA
- Department of Neurosurgery, Pennsylvania State University-Milton S. Hershey Medical Center, Hershey, PA, USA
- Department of Kinesiology, Pennsylvania State University-Milton S. Hershey Medical Center, Hershey, PA, USA
| |
Collapse
|
49
|
Chen C, Wei X, Wang S, Jiao Q, Zhang Y, Du G, Wang X, Wei F, Zhang J, Wei L. Compression regulates gene expression of chondrocytes through HDAC4 nuclear relocation via PP2A-dependent HDAC4 dephosphorylation. Biochim Biophys Acta 2016; 1863:1633-42. [PMID: 27106144 DOI: 10.1016/j.bbamcr.2016.04.018] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2015] [Revised: 04/13/2016] [Accepted: 04/17/2016] [Indexed: 11/15/2022]
Abstract
Biomechanics plays a critical role in the modulation of chondrocyte function. The mechanisms by which mechanical loading is transduced into intracellular signals that regulate chondrocyte gene expression remain largely unknown. Histone deacetylase 4 (HDAC4) is specifically expressed in chondrocytes. Mice lacking HDAC4 display chondrocyte hypertrophy, ectopic and premature ossification, and die early during the perinatal period. HDAC4 has a remarkable ability to translocate between the cell's cytoplasm and nucleus. It has been established that subcellular relocation of HDAC4 plays a critical role in chondrocyte differentiation and proliferation. However, it remains unclear whether subcellular relocation of HDAC4 in chondrocytes can be induced by mechanical loading. In this study, we first report that compressive loading induces HDAC4 relocation from the cytoplasm to the nucleus of chondrocytes via stimulation of Ser/Thr-phosphoprotein phosphatases 2A (PP2A) activity, which results in dephosphorylation of HDAC4. Dephosphorylated HDAC4 relocates to the nucleus to achieve transcriptional repression of Runx2 and regulates chondrocyte gene expression in response to compression. Our results elucidate the mechanism by which mechanical compression regulates chondrocyte gene expression through HDAC4 relocation from the cell's cytoplasm to the nucleus via PP2A-dependent HDAC4 dephosphorylation.
Collapse
Affiliation(s)
- Chongwei Chen
- Department of Orthopaedics, The Second Hospital of Shanxi Medical University, Shanxi Key Lab of Bone and Soft Tissue Injury Repair, Taiyuan 030001, China
| | - Xiaochun Wei
- Department of Orthopaedics, The Second Hospital of Shanxi Medical University, Shanxi Key Lab of Bone and Soft Tissue Injury Repair, Taiyuan 030001, China
| | - Shaowei Wang
- Department of Orthopaedics, The Second Hospital of Shanxi Medical University, Shanxi Key Lab of Bone and Soft Tissue Injury Repair, Taiyuan 030001, China; Department of Orthopaedics, Warren Alpert Medical School of Brown University/Rhode Island Hospital, Providence, RI 02903, USA
| | - Qiang Jiao
- Department of Orthopaedics, The Second Hospital of Shanxi Medical University, Shanxi Key Lab of Bone and Soft Tissue Injury Repair, Taiyuan 030001, China
| | - Yang Zhang
- Department of Orthopaedics, The Second Hospital of Shanxi Medical University, Shanxi Key Lab of Bone and Soft Tissue Injury Repair, Taiyuan 030001, China; Department of Orthopaedics, Warren Alpert Medical School of Brown University/Rhode Island Hospital, Providence, RI 02903, USA
| | - Guoqing Du
- Department of Orthopaedics, Warren Alpert Medical School of Brown University/Rhode Island Hospital, Providence, RI 02903, USA
| | - Xiaohu Wang
- Department of Orthopaedics, The Second Hospital of Shanxi Medical University, Shanxi Key Lab of Bone and Soft Tissue Injury Repair, Taiyuan 030001, China
| | - Fangyuan Wei
- Foot and Ankle Orthopaedic Surgery Center, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
| | - Jianzhong Zhang
- Foot and Ankle Orthopaedic Surgery Center, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
| | - Lei Wei
- Department of Orthopaedics, The Second Hospital of Shanxi Medical University, Shanxi Key Lab of Bone and Soft Tissue Injury Repair, Taiyuan 030001, China; Department of Orthopaedics, Warren Alpert Medical School of Brown University/Rhode Island Hospital, Providence, RI 02903, USA.
| |
Collapse
|
50
|
Pang H, Shi A, Li M, Xue W, Li Y, Cao G, Yan B, Dong F, Xiao W, He G, Du G, Hu X, Cheng G. Simultaneous Determination of Baicalein and Baicalin in Human Plasma by High Performance Liquid Chromatograph-Tandem Spectrometry and its Application in a Food-Effect Pharmacokinetic Study. Drug Res (Stuttg) 2016; 66:394-401. [PMID: 27022718 DOI: 10.1055/s-0035-1569446] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- H. Pang
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang (P.R. China)
| | - A. Shi
- Beijing Key Laboratory of Drug Clinical Risk and Personalized Medication Evaluation, Department of Pharmacy, Beijing Hospital, Beijing (P.R. China)
| | - M. Li
- Beijing Key Laboratory of Drug Clinical Risk and Personalized Medication Evaluation, Department of Pharmacy, Beijing Hospital, Beijing (P.R. China)
| | - W. Xue
- Beijing Key Laboratory of Drug Clinical Risk and Personalized Medication Evaluation, Department of Pharmacy, Beijing Hospital, Beijing (P.R. China)
| | - Y. Li
- Beijing Key Laboratory of Drug Clinical Risk and Personalized Medication Evaluation, Department of Pharmacy, Beijing Hospital, Beijing (P.R. China)
| | - G. Cao
- Beijing Key Laboratory of Drug Clinical Risk and Personalized Medication Evaluation, Department of Pharmacy, Beijing Hospital, Beijing (P.R. China)
| | - B. Yan
- Beijing Key Laboratory of Drug Clinical Risk and Personalized Medication Evaluation, Department of Pharmacy, Beijing Hospital, Beijing (P.R. China)
| | - F. Dong
- Beijing Key Laboratory of Drug Clinical Risk and Personalized Medication Evaluation, Department of Pharmacy, Beijing Hospital, Beijing (P.R. China)
| | - W. Xiao
- StateKey Laboratory of New-tech for Chinese Medicine Pharmaceutical Process, Jiangsu Kanion Pharmaceutical CO.LTD, Lianyungang, Jiangsu (P.R. China)
| | - G. He
- Beijing Key Laboratory of Drug Targets Identification and Drug Screening, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing (P.R. China)
| | - G. Du
- Beijing Key Laboratory of Drug Targets Identification and Drug Screening, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing (P.R. China)
| | - X. Hu
- Beijing Key Laboratory of Drug Clinical Risk and Personalized Medication Evaluation, Department of Pharmacy, Beijing Hospital, Beijing (P.R. China)
| | - G. Cheng
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang (P.R. China)
| |
Collapse
|