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Abe K, Beer JC, Nguyen T, Ariyapala IS, Holmes TH, Feng W, Zhang B, Kuo D, Luo Y, Ma XJ, Maecker HT. Cross-Platform Comparison of Highly Sensitive Immunoassays for Inflammatory Markers in a COVID-19 Cohort. J Immunol 2024; 212:1244-1253. [PMID: 38334457 PMCID: PMC10948291 DOI: 10.4049/jimmunol.2300729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Accepted: 01/19/2024] [Indexed: 02/10/2024]
Abstract
A variety of commercial platforms are available for the simultaneous detection of multiple cytokines and associated proteins, often employing Ab pairs to capture and detect target proteins. In this study, we comprehensively evaluated the performance of three distinct platforms: the fluorescent bead-based Luminex assay, the proximity extension-based Olink assay, and a novel proximity ligation assay platform known as Alamar NULISAseq. These assessments were conducted on human serum samples from the National Institutes of Health IMPACC study, with a focus on three essential performance metrics: detectability, correlation, and differential expression. Our results reveal several key findings. First, the Alamar platform demonstrated the highest overall detectability, followed by Olink and then Luminex. Second, the correlation of protein measurements between the Alamar and Olink platforms tended to be stronger than the correlation of either of these platforms with Luminex. Third, we observed that detectability differences across the platforms often translated to differences in differential expression findings, although high detectability did not guarantee the ability to identify meaningful biological differences. Our study provides valuable insights into the comparative performance of these assays, enhancing our understanding of their strengths and limitations when assessing complex biological samples, as exemplified by the sera from this COVID-19 cohort.
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Affiliation(s)
- Koji Abe
- Institute for Immunity, Transplantation, and Infection, Stanford University School of Medicine, Stanford, CA 94305
| | | | - Tran Nguyen
- Institute for Immunity, Transplantation, and Infection, Stanford University School of Medicine, Stanford, CA 94305
| | | | - Tyson H. Holmes
- Institute for Immunity, Transplantation, and Infection, Stanford University School of Medicine, Stanford, CA 94305
| | - Wei Feng
- Alamar Biosciences, Inc., Fremont, CA 94538
| | | | - Dwight Kuo
- Alamar Biosciences, Inc., Fremont, CA 94538
| | - Yuling Luo
- Alamar Biosciences, Inc., Fremont, CA 94538
| | | | - Holden T. Maecker
- Institute for Immunity, Transplantation, and Infection, Stanford University School of Medicine, Stanford, CA 94305
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Dou XL, Liu RX, Liu Y, Peng N, Wen L, Wu Y, Li Q, Zhong YP, Zhou X, Liao AJ, Jiang HN, Ma XJ, Dong HH, Fan SJ, Zhao YQ, Hu DH, Lu J. [Efficacy and safety of first-line treatment with anti-CD38 monoclonal antibody-based regimen for primary plasma cell leukemia]. Zhonghua Yi Xue Za Zhi 2024; 104:499-506. [PMID: 38317361 DOI: 10.3760/cma.j.cn112137-20231005-00634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 02/07/2024]
Abstract
Objective: To analyze the efficacy and safety of first-line treatment with an anti-CD38 monoclonal antibody regimen for primary plasma cell leukemia (pPCL). Methods: Patients diagnosed with pPCL from December 1st, 2018 to July 26th, 2023, receiving first-line treatment of anti-CD38 monoclonal antibody-based regimens across multiple centers including Peking University People's Hospital, Fuxing Hospital of Capital Medical University, Qingdao Municipal Hospital, Shengjing Hospital of China Medical University, Handan Central Hospital, the First Affiliated Hospital of Harbin Medical University, the Fourth Hospital of Hebei Medical University and General Hospital of Ningxia Medical University were consecutively included. A total of 24 pPCL patients were included with thirteen being male and eleven being female. The median age [M(Q1, Q3)] was 60 (57, 70) years. Patients were grouped according to peripheral blood plasma cell (PBPC) percentage [5%-19% (n=14) vs ≥20% (n=10)]. Last follow-up date was September 26th, 2023. The median follow-up period was 9.1 (4.2, 15.5) months. Patients' data related with clinical baseline characteristics, efficacy, survival and safety were retrospectively collected. Cox proportional hazards regression model was used to analyze risk factors associated with survival. Results: Among 24 pPCL patients, 16 (66.7%) patients had anemia at diagnosis, 13(54.2%) patients had thrombocytopenia, 8 (33.3%) patients had a baseline estimated glomerular filtration rate (eGFR)<40 ml·min-1·(1.73m2)-1, 13 (54.2%) patients had elevated lactate dehydrogenase (LDH) levels. The median PBPC percentage was 16% (8%, 26%) . Fluorescence in situ hybridization testing indicated that patients harboring 17p deletion, t(4;14) or t(14;16) were 6 (25.0%), 4 (16.7%) and 4 (16.7%), respectively. The overall response rate was 83.3% (20/24). The median progression-free survival (PFS) was 20.5 (95%CI: 15.8-25.2) months, and the median overall survival (OS) was not reached. Estimated 1-year and 2-year PFS and OS rates were 75.0% and 89.1%, 37.5% and 53.4%, respectively. The median PFS and OS for patients with PBPC percentages 5%-19% and≥20% were not reached and 20.5 (95%CI:15.7-25.3) months, 17.8 months and not reached, respectively. There was no significant statistical difference of PFS and OS between two groups (all P>0.05). Multivariate Cox regression analysis showed that 1p32 deletion was the risk factor associated with PFS (HR=7.7, 95%CI: 1.1-54.9, P=0.043). Seventeen patients (70.8%) developed grade 3-4 hematologic toxicities. Twelve patients (50.0%) developed grade 3-4 thrombocytopenia. Sixteen patients (66.7%) developed infection. All hematologic toxicities and infections were improved after supportive treatment. Conclusion: First-line treatment with anti-CD38 monoclonal antibody-based therapy for pPCL is effective and safe.
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Affiliation(s)
- X L Dou
- Department of Hematology, Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing 100044, China
| | - R X Liu
- Department of Hematology, the Fourth Hospital of Hebei Medical University, Shijiazhuang 050010, China
| | - Y Liu
- Department of Hematology, Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing 100044, China
| | - N Peng
- Department of Hematology, Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing 100044, China
| | - L Wen
- Department of Hematology, Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing 100044, China
| | - Y Wu
- Department of Hematology, Fuxing Hospital, Capital Medical University, Beijing 100044, China
| | - Q Li
- Department of Hematology, Fuxing Hospital, Capital Medical University, Beijing 100044, China
| | - Y P Zhong
- Department of Hematology, Qingdao Municipal Hospital, Qingdao 266011, China
| | - X Zhou
- Department of Hematology, Qingdao Municipal Hospital, Qingdao 266011, China
| | - A J Liao
- Department of Hematology, Shengjing Hospital of China Medical University, Shenyang 110004, China
| | - H N Jiang
- Department of Hematology, Shengjing Hospital of China Medical University, Shenyang 110004, China
| | - X J Ma
- Department of Hematology, Handan Central Hospital, Handan 056001, China
| | - H H Dong
- Department of Hematology, Handan Central Hospital, Handan 056001, China
| | - S J Fan
- Department of Hematology, the First Affiliated Hospital of Harbin Medical University, Harbin 150001, China
| | - Y Q Zhao
- Department of Hematology, the First Affiliated Hospital of Harbin Medical University, Harbin 150001, China
| | - D H Hu
- Department of Hematology, General Hospital of Ningxia Medical University, Yinchuan 750004, China
| | - J Lu
- Department of Hematology, Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing 100044, China
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Lao Q, Yang L, Liu S, Ma X, Tan D, Li J, Liao B, Wei Y, Pang W, Morais CLM, Liu H. Effects of Benzo ( a) Pyrene and 2,2',4,4'-Tetrabromodiphenyl Ether Exposure on the Thyroid Gland in Rats by Attenuated Total Reflection Fourier-Transform Infrared Spectroscopy. ACS Omega 2024; 9:4317-4323. [PMID: 38313510 PMCID: PMC10831854 DOI: 10.1021/acsomega.3c05819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/13/2023] [Revised: 12/23/2023] [Accepted: 01/04/2024] [Indexed: 02/06/2024]
Abstract
Benzo[a]pyrene (B[a]P) and 2,2',4,4'-tetrabromodiphenyl ether (BDE-47) are widespread environmental pollutants and can destroy thyroid function. We assessed the biochemical changes in the thyroid tissue of rats exposed to B[a]P and BDE-47 using attenuated total reflection Fourier-transform infrared spectroscopy combined with support vector machine(SVM). After B[a]P and BDE-47 treatment in rats, the structure of thyroid follicles was destroyed and epithelial cells were necrotic, indicating that B[a]P and BDE-47 may lead to changes of the thyroid morphology of the rats. These damages are mainly related to C=O stretch vibrations of lipids (1743 cm-1), as well as the secondary structure of proteins [amide I (1645 cm-1) and amide II (1550 cm-1)], and carbohydrates [C-OH (1138 cm-1), C-O (1106 cm-1, 1049 cm-1, 991 cm-1), C-C (1106 cm-1) stretching] and collagen (phosphodiester stretching at 922 cm-1) vibration modes. When SVM was used for classification, there was a substantial separation between the control and the exposure groups (accuracy = 96%; sensitivity = 98%; specificity = 87%), and there was also a major separation between the exposed groups (accuracy = 93%; sensitivity = 94%; and specificity = 92%).
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Affiliation(s)
- QiuFeng Lao
- Guangxi
Key Laboratory of Environmental Exposomics and Entire Lifecycle Heath, Guilin Medical University, Guilin, Guangxi 541199, China
- School
of Public Health, Guilin Medical University, Guilin, Guangxi 541199, China
- Liuzhou
People’s Hospital, Liuzhou, Guangxi 545006, China
| | - LiJun Yang
- Guangxi
Key Laboratory of Environmental Exposomics and Entire Lifecycle Heath, Guilin Medical University, Guilin, Guangxi 541199, China
- School
of Public Health, Guilin Medical University, Guilin, Guangxi 541199, China
| | - ShuZhen Liu
- Guangxi
Key Laboratory of Environmental Exposomics and Entire Lifecycle Heath, Guilin Medical University, Guilin, Guangxi 541199, China
- School
of Public Health, Guilin Medical University, Guilin, Guangxi 541199, China
| | - XiaoJun Ma
- Guangxi
Key Laboratory of Environmental Exposomics and Entire Lifecycle Heath, Guilin Medical University, Guilin, Guangxi 541199, China
- School
of Public Health, Guilin Medical University, Guilin, Guangxi 541199, China
| | - DeChan Tan
- Guangxi
Key Laboratory of Environmental Exposomics and Entire Lifecycle Heath, Guilin Medical University, Guilin, Guangxi 541199, China
- School
of Public Health, Guilin Medical University, Guilin, Guangxi 541199, China
| | - JinBo Li
- Guangxi
Key Laboratory of Environmental Exposomics and Entire Lifecycle Heath, Guilin Medical University, Guilin, Guangxi 541199, China
- School
of Public Health, Guilin Medical University, Guilin, Guangxi 541199, China
| | - BaoYi Liao
- Guangxi
Key Laboratory of Environmental Exposomics and Entire Lifecycle Heath, Guilin Medical University, Guilin, Guangxi 541199, China
- School
of Public Health, Guilin Medical University, Guilin, Guangxi 541199, China
| | - YuanFeng Wei
- Guangxi
Key Laboratory of Environmental Exposomics and Entire Lifecycle Heath, Guilin Medical University, Guilin, Guangxi 541199, China
- School
of Public Health, Guilin Medical University, Guilin, Guangxi 541199, China
| | - WeiYi Pang
- Guangxi
Key Laboratory of Environmental Exposomics and Entire Lifecycle Heath, Guilin Medical University, Guilin, Guangxi 541199, China
| | - Camilo L. M. Morais
- Center
for Education, Science and Technology of the Inhamuns Region, State University of Ceará, Tauá 63660-000, Brazil
| | - Hui Liu
- Guangxi
Key Laboratory of Environmental Exposomics and Entire Lifecycle Heath, Guilin Medical University, Guilin, Guangxi 541199, China
- School
of Public Health, Guilin Medical University, Guilin, Guangxi 541199, China
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Feng W, Beer JC, Hao Q, Ariyapala IS, Sahajan A, Komarov A, Cha K, Moua M, Qiu X, Xu X, Iyengar S, Yoshimura T, Nagaraj R, Wang L, Yu M, Engel K, Zhen L, Xue W, Lee CJ, Park CH, Peng C, Zhang K, Grzybowski A, Hahm J, Schmidt SV, Odainic A, Spitzer J, Buddika K, Kuo D, Fang L, Zhang B, Chen S, Latz E, Yin Y, Luo Y, Ma XJ. NULISA: a proteomic liquid biopsy platform with attomolar sensitivity and high multiplexing. Nat Commun 2023; 14:7238. [PMID: 37945559 PMCID: PMC10636041 DOI: 10.1038/s41467-023-42834-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Accepted: 10/23/2023] [Indexed: 11/12/2023] Open
Abstract
The blood proteome holds great promise for precision medicine but poses substantial challenges due to the low abundance of most plasma proteins and the vast dynamic range of the plasma proteome. Here we address these challenges with NUcleic acid Linked Immuno-Sandwich Assay (NULISA™), which improves the sensitivity of traditional proximity ligation assays by ~10,000-fold to attomolar level, by suppressing assay background via a dual capture and release mechanism built into oligonucleotide-conjugated antibodies. Highly multiplexed quantification of both low- and high-abundance proteins spanning a wide dynamic range is achieved by attenuating signals from abundant targets with unconjugated antibodies and next-generation sequencing of barcoded reporter DNA. A 200-plex NULISA containing 124 cytokines and chemokines and other proteins demonstrates superior sensitivity to a proximity extension assay in detecting biologically important low-abundance biomarkers in patients with autoimmune diseases and COVID-19. Fully automated NULISA makes broad and in-depth proteomic analysis easily accessible for research and diagnostic applications.
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Affiliation(s)
- Wei Feng
- Alamar Biosciences, Inc, Fremont, CA, USA
| | | | - Qinyu Hao
- Alamar Biosciences, Inc, Fremont, CA, USA
| | | | | | | | - Katie Cha
- Alamar Biosciences, Inc, Fremont, CA, USA
| | - Mason Moua
- Alamar Biosciences, Inc, Fremont, CA, USA
| | | | - Xiaomei Xu
- Alamar Biosciences, Inc, Fremont, CA, USA
| | | | | | | | - Li Wang
- Alamar Biosciences, Inc, Fremont, CA, USA
| | - Ming Yu
- Alamar Biosciences, Inc, Fremont, CA, USA
| | - Kate Engel
- Alamar Biosciences, Inc, Fremont, CA, USA
| | - Lucas Zhen
- Alamar Biosciences, Inc, Fremont, CA, USA
| | - Wen Xue
- Alamar Biosciences, Inc, Fremont, CA, USA
| | | | | | - Cheng Peng
- Alamar Biosciences, Inc, Fremont, CA, USA
| | | | | | | | - Susanne V Schmidt
- Institute of Innate Immunity, Medical Faculty, University of Bonn, Bonn, Germany
| | - Alexandru Odainic
- Institute of Innate Immunity, Medical Faculty, University of Bonn, Bonn, Germany
- Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, Australia
| | - Jasper Spitzer
- Institute of Innate Immunity, Medical Faculty, University of Bonn, Bonn, Germany
| | | | - Dwight Kuo
- Alamar Biosciences, Inc, Fremont, CA, USA
| | - Lei Fang
- Alamar Biosciences, Inc, Fremont, CA, USA
| | | | - Steve Chen
- Alamar Biosciences, Inc, Fremont, CA, USA
| | - Eicke Latz
- Institute of Innate Immunity, Medical Faculty, University of Bonn, Bonn, Germany
- Deutsches Rheuma-Forschungszentrum Berlin (DRFZ), Berlin, Germany
| | - Yiyuan Yin
- Alamar Biosciences, Inc, Fremont, CA, USA
| | - Yuling Luo
- Alamar Biosciences, Inc, Fremont, CA, USA.
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Abe K, Beer JC, Nguyen T, Ariyapala IS, Holmes TH, Feng W, Zhang B, Kuo D, Luo Y, Ma XJ, Maecker HT. Cross-platform comparison of highly-sensitive immunoassays for inflammatory markers in a COVID-19 cohort 1. bioRxiv 2023:2023.10.24.563866. [PMID: 37961126 PMCID: PMC10634816 DOI: 10.1101/2023.10.24.563866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Abstract
A variety of commercial platforms are available for the simultaneous detection of multiple cytokines and associated proteins, often employing antibody pairs to capture and detect target proteins. In this study, we comprehensively evaluated the performance of three distinct platforms: the fluorescent bead-based Luminex assay, the proximity extension-based Olink assay, and a novel proximity ligation assay platform known as Alamar NULISAseq. These assessments were conducted on serum samples from the NIH IMPACC study, with a focus on three essential performance metrics: detectability, correlation, and differential expression. Our results reveal several key findings. Firstly, the Alamar platform demonstrated the highest overall detectability, followed by Olink and then Luminex. Secondly, the correlation of protein measurements between the Alamar and Olink platforms tended to be stronger than the correlation of either of these platforms with Luminex. Thirdly, we observed that detectability differences across the platforms often translated to differences in differential expression findings, although high detectability did not guarantee the ability to identify meaningful biological differences. Our study provides valuable insights into the comparative performance of these assays, enhancing our understanding of their strengths and limitations when assessing complex biological samples, as exemplified by the sera from this COVID-19 cohort.
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6
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Ma XJ, Dong C. [Thinking and prospect of scar reconstruction]. Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi 2023; 39:801-805. [PMID: 37805794 DOI: 10.3760/cma.j.cn501225-20230504-00153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 10/09/2023]
Abstract
Before scar reconstruction, a plan must be carefully designed in accordance with certain design principles. The new technologies for scar reconstruction should be carried out actively and steadily in a standardized manner, with attentions to the follow-up and evaluation work after reconstruction. The vigorous development of artificial intelligence, the mature of three-dimensional bioprinting technology, and the in-depth breakthrough in basic research are likely to bring revolutionary progress to the field of scar reconstruction.
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Affiliation(s)
- X J Ma
- Department of Plastic Surgery, the First Affiliated Hospital of Air Force Medical University, Xi'an 710032, China
| | - C Dong
- Department of Plastic Surgery, the First Affiliated Hospital of Air Force Medical University, Xi'an 710032, China
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Chu FF, Tang YK, Ding JK, Zhang Y, Liu W, Ma XJ. [Clinical effects of expanded frontal flap and flip scar flap in repairing partial nasal defect]. Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi 2023; 39:806-812. [PMID: 37805795 DOI: 10.3760/cma.j.cn501225-20230517-00173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 10/09/2023]
Abstract
Objective: To investigate the clinical effects of expanded frontal flap and flip scar flap in repairing partial nasal defect. Methods: A retrospective observational study was conducted. From January 2012 to January 2022, 26 patients with partial nasal defects who met the inclusion criteria were admitted to the First Affiliated Hospital of Air Force Medical University, including 19 males and 7 females, aged 5 to 61 years. The surgery was performed in 4 stages. In the first stage, a rectangular skin and soft tissue expander (hereinafter referred to as expander) with suitable rated capacity was planted in frontal region and expanded by injecting water regularly. In the second stage, flip scar flap was grafted to reconstruct nasal inner lining, whose area was about 10% larger than the area of defect. The expanded frontal flap with pedicle was transferred to repair the nasal defect, whose pedicle was supraorbital vessel or supratrochlear vessel on the contralateral side of the defect, and the area of expanded flap was 20% larger than the nasal defect area after resection and flipping of scar flap. The donor site of expanded flap was sutured directly. After 3 weeks of flap transferring, the flap was delayed in the third stage. After 1 week of delaying operation, the pedicle of flap was cut off in the fourth stage. The number, rated capacity, injection volume, and expansion time of embedded expanders were recorded. The occurrences of complications including infection, hematoma, ulceration of expanded flap after the first stage operation, and blood supply disorder or necrosis of flap after operation in the second and fourth stages were observed. All the patients were followed up for 1 year at least, and the color of flap, scar of frontal donor site, symmetry of bilateral eyebrows, and the nasal appearance and ventilated function of external nasal tract were observed. Results: A total of 26 expanders were embedded in 26 patients. The rated capacity of expanders ranged from 100 to 300 mL. The injection volume was 1.0 to 1.5 times of the rated capacity of expanders. The expansion time ranged from 2.5 to 4.0 months, with an average time of 3 months. There were no complications occurred after each operation. The follow-up showed that the color of flap was similar to the normal nasal skin, the scar of frontal region was not obvious, the bilateral eyebrows were basically symmetrical, the nose had excellent appearance, ventilation function of external nasal tract was not affected, while some of the patients had downward rotation or unapparent tip-defining point of nose. Conclusions: Using the flip scar flap to reconstruct the nasal inner lining and pre-expanded frontal flap to reconstruct the nasal skin, without free cartilage transplantation to repair the partial nasal defects can achieve satisfied nasal appearance post operation, without abnormal external nasal ventilation function.
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Affiliation(s)
- F F Chu
- Department of Plastic Surgery, the First Affiliated Hospital of Air Force Medical University, Xi'an 710032, China
| | - Y K Tang
- Department of Plastic Surgery, the First Affiliated Hospital of Air Force Medical University, Xi'an 710032, China
| | - J K Ding
- Department of Plastic Surgery, the First Affiliated Hospital of Air Force Medical University, Xi'an 710032, China
| | - Y Zhang
- Department of Plastic Surgery, the First Affiliated Hospital of Air Force Medical University, Xi'an 710032, China
| | - W Liu
- Department of Plastic Surgery, the First Affiliated Hospital of Air Force Medical University, Xi'an 710032, China
| | - X J Ma
- Department of Plastic Surgery, the First Affiliated Hospital of Air Force Medical University, Xi'an 710032, China
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Sun YH, Wang XX, Pei MY, Ma XJ, Ying YY, Zhan SY, Li N. [Introduction of a tool to assess Risk of Bias in Non-randomized Studies-of Exposure (2022)]. Zhonghua Liu Xing Bing Xue Za Zhi 2023; 44:1454-1461. [PMID: 37743281 DOI: 10.3760/cma.j.cn112338-20230221-00094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 09/26/2023]
Abstract
This article introduces the contents of the latest edition Risk of Bias in Non-randomized Studies-of Exposure (ROBINS-E) published in June 2022 [ROBINS-E (2022)], and gives some examples about its usage. ROBINS-E is a tool for assessing the risk of bias in non-randomized studies-of exposure. Compared with ROBINS-E (2019), ROBINS-E (2022) adds more bias for observational studies, covers a more comprehensive range of bias, and adds the assessment of the external authenticity of the study. ROBINS-E (2022) adds a preliminary evaluation process to improve the efficiency of evaluation. In addition, ROBINS-E (2022) visualizes and instrumentalizes the use of signal problems in the form of path graph, making it more convenient to use. ROBINS-E (2022), although more consideration has been given to the issue of co-exposure, still does not address the problem of effect modification in co-exposure, and there is still room to expand the applicable research.
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Affiliation(s)
- Y H Sun
- Research Center of Clinical Epidemiology, Peking University Third Hospital, Beijing 100191, China
| | - X X Wang
- Research Center of Clinical Epidemiology, Peking University Third Hospital, Beijing 100191, China Key Laboratory of Epidemiology of Major Diseases (Peking University), Ministry of Education, Beijing 100191, China
| | - M Y Pei
- Research Center of Clinical Epidemiology, Peking University Third Hospital, Beijing 100191, China Key Laboratory of Epidemiology of Major Diseases (Peking University), Ministry of Education, Beijing 100191, China
| | - X J Ma
- Research Center of Clinical Epidemiology, Peking University Third Hospital, Beijing 100191, China
| | - Y Y Ying
- School of Nursing, Peking University, Beijing 100191, China
| | - S Y Zhan
- Research Center of Clinical Epidemiology, Peking University Third Hospital, Beijing 100191, China Key Laboratory of Epidemiology of Major Diseases (Peking University), Ministry of Education, Beijing 100191, China Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China
| | - N Li
- Research Center of Clinical Epidemiology, Peking University Third Hospital, Beijing 100191, China Key Laboratory of Epidemiology of Major Diseases (Peking University), Ministry of Education, Beijing 100191, China
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9
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Ma XJ, Liu X, Ge Y. [Pay attention to the infectious complications in the clinical application of biological agents]. Zhonghua Yi Xue Za Zhi 2023; 103:2546-2551. [PMID: 37650201 DOI: 10.3760/cma.j.cn112137-20230608-00962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
Biological agents have been widely used in the treatment of many clinical diseases by targeting specific immune cells or cytokines. In the course of clinical use, biological agents can lead to secondary immune deficiency, which increases the risk of infection. At present, there are no evidence-based guidelines or management opinions on the differences of infections caused by various biological agents, how to identify infectious complications in the course of treatment with different biological agents at an early stage, and how to take effective and targeted prevention. This paper summarizes the infection complications and their characteristics that need to be paid attention to in the clinical introduction of biological agents, aiming to help clinicians make reasonable decisions for infection complications in the process of using biological agents, reduce the incidence of infection, and improve the success rate of diagnosis and treatment.
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Affiliation(s)
- X J Ma
- Department of Infectious Disease, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - X Liu
- Department of Infectious Diseases, the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai 519000, China
| | - Y Ge
- Department of Infectious Disease, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing 100730, China
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10
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Liu H, Ge Y, Xu LB, Ma GT, Ma XJ. [Brucella endocarditis: a case report]. Zhonghua Nei Ke Za Zhi 2023; 62:850-852. [PMID: 37394855 DOI: 10.3760/cma.j.cn112138-20220709-00502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 07/04/2023]
Affiliation(s)
- H Liu
- Department of Infectious Diseases, Peking Union Medical College Hospital,Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Y Ge
- Department of Infectious Diseases, Peking Union Medical College Hospital,Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - L B Xu
- Department of Infectious Diseases, Peking Union Medical College Hospital,Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - G T Ma
- Department of Cardial Surgery, Peking Union Medical College Hospital,Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - X J Ma
- Department of Infectious Diseases, Peking Union Medical College Hospital,Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
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Feng W, Beer J, Hao Q, Ariyapala IS, Sahajan A, Komarov A, Cha K, Moua M, Qiu X, Xu X, Iyengar S, Yoshimura T, Nagaraj R, Wang L, Yu M, Engel K, Zhen L, Xue W, Lee CJ, Park CH, Peng C, Zhang K, Grzybowski A, Hahm J, Schmidt SV, Odainic A, Spitzer J, Buddika K, Kuo D, Fang L, Zhang B, Chen S, Latz E, Yin Y, Luo Y, Ma XJ. NULISA: a novel proteomic liquid biopsy platform with attomolar sensitivity and high multiplexing. bioRxiv 2023:2023.04.09.536130. [PMID: 37090549 PMCID: PMC10120728 DOI: 10.1101/2023.04.09.536130] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/25/2023]
Abstract
The blood proteome holds great promise for precision medicine but poses substantial challenges due to the low abundance of most plasma proteins and the vast dynamic range across the proteome. We report a novel proteomic technology - NUcleic acid Linked Immuno-Sandwich Assay (NULISA™) - that incorporates a dual capture and release mechanism to suppress the assay background and improves the sensitivity of the proximity ligation assay by over 10,000-fold to the attomolar level. It utilizes pairs of antibodies conjugated to DNA oligonucleotides that enable immunocomplex purification and generate reporter DNA containing target- and sample-specific barcodes for a next-generation sequencing-based, highly multiplexed readout. A 200-plex NULISA targeting 124 cytokines and chemokines and 80 other immune response-related proteins demonstrated superior sensitivity for detecting low-abundance proteins and high concordance with other immunoassays. The ultrahigh sensitivity allowed the detection of previously difficult-to-detect, but biologically important, low-abundance biomarkers in patients with autoimmune diseases and COVID-19. Fully automated NULISA addresses longstanding challenges in proteomic analysis of liquid biopsies and makes broad and in-depth proteomic analysis accessible to the general research community and future diagnostic applications.
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12
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Zhang MY, Chen XP, Sun XL, Ma XJ, Shen XX, Guo YY. [Establishment of a recombined mannose-binding lectin protein-magnetic beads-enriched binding recombinant enzyme-assisted polymerase chain reaction assay for Candida in blood samples]. Zhonghua Liu Xing Bing Xue Za Zhi 2023; 44:823-827. [PMID: 37221074 DOI: 10.3760/cma.j.cn112338-20230215-00079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Objective: To establish a nested recombinant enzyme-assisted polymerase chain reaction (RAP) technique combined with recombined mannose-binding lectin protein (M1 protein)-magnetic beads enrichment for the detection of Candida albicans (C. albicans) and Candida tropicalis (C. tropicalis) in blood samples for the early diagnosis of candidemia albicans and candidiemia tropicalis. Methods: The primer probes for highly conserved regions of the internal transcribed spacerregions of C. albicans and C. tropicalis were deigned to establish RAP assays for the detections of C. albicans and C. tropicalis; The sensitivity and reproducibility of nucleic acid tests with gradient dilutions of standard strains and specificity of nucleic acid tests with common clinical pathogens causing bloodstream infection were condcuted. M1 protein-magnetic bead enriched plasma C. albicans and C. tropicalis were used for RAP and PCR in with simulated samples and the results were compared. Results: The sensitivity of the established dual RAP assay was 2.4-2.8 copies/reaction, with higher reproducibility and specificity. M1 protein-magnetic bead enrichment of pathogen combined with the dual RAP assay could complete the detections of C. albicans and C. tropicalis in plasma within 4 hours. Fie the pathogen samples at concentration <10 CFU/ml, the number of the samples tested by RAP was higher than that tested by PCR after enrichment. Conclusion: In this study, a dual RAP assay for the detections of C. albicans and C. tropicalis in blood sample was developed, which has the advantages of accuracy, rapidity, and less contaminants and has great potential for rapid detection of Candidemia.
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Affiliation(s)
- M Y Zhang
- College of Clinical Medicine, North China University of Science and Technology, Tangshan 063210, China National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China Clinical Laboratory, Tangshan Gongren Hospital, Tangshan 063000, China
| | - X P Chen
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - X L Sun
- College of Clinical Medicine, North China University of Science and Technology, Tangshan 063210, China National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - X J Ma
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - X X Shen
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Y Y Guo
- Clinical Laboratory, Tangshan Gongren Hospital, Tangshan 063000, China
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Zhou TY, Yuan XM, Ma XJ. Can natural environments enhance acute effects of rehabilitation exercise for older adults? A pilot randomized controlled trial. Aging Clin Exp Res 2023; 35:1213-1219. [PMID: 37060534 DOI: 10.1007/s40520-023-02402-1] [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: 12/01/2022] [Accepted: 03/23/2023] [Indexed: 04/16/2023]
Abstract
The added value of natural environments in rehabilitation exercise is unclear. This study aimed to investigate whether there are more acute health benefits for older adults after a single rehabilitation exercise session performed in an outdoor natural environment compared with an indoor environment. Twenty-two nursing home residents were randomly assigned to the outdoor (n = 11, 79.5 ± 2.1 years) or indoor group (n = 11, 78.8 ± 5.2 years). Performance test outcomes were measured pre- and post-training session. The indoor group had a significantly higher blood pressure, greater increase in heart rate, higher perceived exercise intensity and physiological fatigue than the outdoor group. The combination of rehabilitation exercise with an outdoor natural environment may reduce exercise fatigue and improve cardiovascular health in older adults, with greater acute health benefits compared with an indoor environment. Rehabilitation exercise in the natural environments may be a highly valued environmental intervention for physiotherapy in older adults.
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Affiliation(s)
- Tong-Yue Zhou
- School of Architecture, State Key Laboratory of Subtropical Building Science, South China University of Technology, Guangzhou, 501640, Guangdong, China
| | - Xiao-Mei Yuan
- School of Architecture, State Key Laboratory of Subtropical Building Science, South China University of Technology, Guangzhou, 501640, Guangdong, China.
| | - Xiao-Jun Ma
- School of Physical Education, South China University of Technology, Guangzhou, 501640, Guangdong, China.
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14
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Ge Y, Zhou J, Ma XJ. [Efficacy and safety of daptomycin in the treatment of gram-positive infective endocarditis: a meta-analysis]. Zhonghua Yi Xue Za Zhi 2023; 103:205-214. [PMID: 36649992 DOI: 10.3760/cma.j.cn112137-20220613-01309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Objective: To assess the efficacy and safety of daptomycin in the treatment of gram-positive infective endocarditis (IE) systematically. Methods: China Biology Medicine Database (CBM), China National Knowledge Internet (CNKI), Wanfang Data, VIP Database, PubMed, Embase, the Cochrane Library, and Web of Science were searched from the time of establishing databases to April 2022 to obtain relevant controlled and uncontrolled studies of daptomycin for gram-positive infective endocarditis, using key search terms ("daptomycin","gram-positive bacterial infections","endocarditis"). We performed literature screening according to inclusion/exclusion criteria, data extraction, and quality assessment, and performed random-effects meta-analyses for pooled results data using R software. Results: A total of 11 studies (including 13 articles) were included. The findings in the three controlled studies showed that in the treatment of staphylococcus aureus endocarditis, there was no statistically significant differences in in-hospital death risk (RR=0.66, 95%CI: 0.24-1.84, P=0.427) and 6-month death risk (RR=1.27, 95%CI: 0.75-2.14, P=0.374) for daptomycin versus anti-staphylococcal penicillin or vancomycin; in the treatment of enterococcal endocarditis, there was no statistically significant difference in death risk (both P>0.05) for daptomycin versus ampicillin combined with ceftriaxone (RR=0.39, 95%CI: 0.06-2.49) and ampicillin or vancomycin plus or minus gentamicin (RR=0.42, 95%CI: 0.05-3.36); and for daptomycin versus ampicillin or vancomycin combined with an aminoglycoside antibiotic, the differences in in-hospital death risk (RR=0.80, 95%CI: 0.11-5.83) and 6-month death risk (RR=0.47, 95%CI: 0.07-3.21) were not statistically significant(both P>0.05). In a cost-effectiveness study, daptomycin as first-line treatment could save the medical cost of 4 037 pounds per patient compared with vancomycin over a longer period of patient treatment. The results of the meta-analysis of uncontrolled studies showed that the mean clinical success rate of daptomycin for left-side endocarditis was 77% (95%CI: 70% to 83%; I2=28%), for MSSA-infective right-side endocarditis was 87% (95%CI: 73%-95%), and for MRSA-infective right-side endocarditis was 78% (95%CI: 38%-95%; I2=49%); while the mortality rate [mean mortality rate for left-side endocarditis was 13% (95%CI: 11%-17%; I2=0); the mortality rate for right-side endocarditis was reported in only 2 studies, 3% and 27%, respectively] or the rate of daptomycin-related adverse events (4%) was within the acceptable ranges for clinical practice. Conclusions: The death risk in the treatment of infective endocarditis with dattomycin is comparable to that of other antibiotics, and the clinical success rate is higher. Some efficacy may be achieved with daptomycin while other treatments are not effective in treating IE.
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Affiliation(s)
- Y Ge
- Infectious Disease Department, Chinese Academy of Medical Sciences Peking Union Medical College Hospital, Beijing 100730, China
| | - J Zhou
- Medical Affairs Department, Chinese Academy of Medical Sciences Peking Union Medical College Hospital, Beijing 100730, China
| | - X J Ma
- Infectious Disease Department, Chinese Academy of Medical Sciences Peking Union Medical College Hospital, Beijing 100730, China
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15
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Ma XJ, Peng HS, Zhan ZL, Wang L, Huang XY, Li XJ, Ma XJ, Huang HB, Li MH, Zhao R, Huang LQ. [Investigation and analysis of imported medicinal materials at Chinese border ports]. Zhongguo Zhong Yao Za Zhi 2022; 47:5817-5823. [PMID: 36471999 DOI: 10.19540/j.cnki.cjcmm.20220823.101] [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] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Imported medicinal materials are an important part of Chinese medicinal resources. To be specific, about 10% of the around 600 commonly used Chinese medicinal materials are from abroad, and the introduction of foreign medicinal materials has promoted the development of Chinese medicine. Amid the advancement of reform and opening up and the "Belt and Road" Initiative, major headway has been made in the cross-border trade in China, bringing opportunities for the import of medicinal materials from border ports. However, for a long time, there is a lack of systematic investigation on the types of exotic medicinal materials at border ports. In the fourth national census of traditional Chinese medicine resources, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, together with several organizations, investigated the nearly 40 border ports, Chinese medicinal material markets, and border trade markets in 6 provinces/autonomous regions in China for the first time and recorded the types, sources, circulation, and the transaction characteristics of imported medicinal materials. Moreover, they invited experts to identify the origins of the collected 237 medicinal materials. In addition, the status quo and the problems of the medicinal materials were summarized. This study is expected to lay a basis for clarifying the market and origins of imported medicinal materials as well as the scientific research on and supervision of them.
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Affiliation(s)
- Xiao-Jing Ma
- State Key Laboratory Breeding Base of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences Beijing 100700, China
| | - Hua-Sheng Peng
- State Key Laboratory Breeding Base of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences Beijing 100700, China Research Unit of Dao-di Herbs (2019RU57), Chinese Academy of Medical Sciences Beijing 100700, China
| | - Zhi-Lai Zhan
- State Key Laboratory Breeding Base of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences Beijing 100700, China
| | - Ling Wang
- State Key Laboratory Breeding Base of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences Beijing 100700, China
| | - Xue-Yan Huang
- Guangxi TCM Resources General Survey and Data Collection Key Laboratory, Guangxi Botanical Garden of Medicinal Plants Nanning 530023, China
| | - Xiao-Jin Li
- Xinjiang Institute of Chinese Materia Medica and Ethnical Materia Urumqi 830002, China
| | - Xiao-Jun Ma
- Yunnan Key Laboratory of Southern Medicine Utilization, Yunnan Branch of Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences Jinghong 666100, China
| | - Hai-Bo Huang
- School of Chinese Herbal Medicine, Guangzhou University of Chinese Medicine Guangzhou 510006, China
| | - Min-Hui Li
- Inner Mongolia Autonomous Region Academy of Chinese Medicine Hohhot 010110, China
| | - Rong Zhao
- College of Pharmacy, Liaoning University of Traditional Chinese Medicine Dalian 116600, China
| | - Lu-Qi Huang
- State Key Laboratory Breeding Base of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences Beijing 100700, China
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16
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Ge Y, Zhou J, Zhang B, Mei D, Xu YC, Ma XJ. [Focusing on patient safety and quality of care, exploring long-term antimicrobial stewardship]. Zhonghua Nei Ke Za Zhi 2022; 61:1091-1094. [PMID: 36207964 DOI: 10.3760/cma.j.cn112138-20220509-00351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Affiliation(s)
- Y Ge
- Department of Infectious Disease, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - J Zhou
- Department of Medical Record, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - B Zhang
- Pharmacy Department, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - D Mei
- Pharmacy Department, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Y C Xu
- Laboratory Department, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - X J Ma
- Department of Infectious Disease, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
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17
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Wang CR, Kang M, Xu J, Lyu Y, Jiang YF, Sun MX, Zuo DQ, Shen JK, Ma XJ, Sun W, Hua YQ, Cai Z. [An exploratory clinical study of the efficacy and safety of tumor-infiltrating lymphocytes in the treatment of metastatic osteosarcoma]. Zhonghua Yi Xue Za Zhi 2022; 102:2421-2427. [PMID: 36000370 DOI: 10.3760/cma.j.cn112137-20220101-00001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective: To explore the safety and efficacy of tumor-infiltrating lymphocytes (TILs) extracted from tumor tissue in patients with pulmonary metastasis of osteosarcoma, the TILs were amplified in vitro to reach clinical dosage and reinfused to the patients combined with high-dose interleukin 2 (IL-2). Methods: Twelve subjects with pathologically diagnosed osteosarcoma were enrolled from December 2019 to June 20, 2021 in Shanghai General Hospital. All subjects progressed with metastasis after standard chemotherapy and failed multiple lines of treatments. Fresh tumor tissue was obtained from the metastatic site and extracted and amplified by Good Manufacturing Practice (GMP) workshop to produce TILs to clinical treatment dosage (109-1011). High-dose IL-2 (100 000-200 000 U/kg) was administered immediately after autogenous TILs infusion to promote the activation, proliferation and antitumor cytolytic activity in vivo. Adverse events (AE) were graded according to Common Terminology Criteria for Adverse Events (CTCAE) standard and tumor response was assessed according to Response Evaluation Criteria in Solid Tumors (RECIST) 1.1. Results: One patient did not receive treatment due to failure in isolating TILs, total of 11 patients received a single re-infusion of autologous TILs. There were 10 males and 1 female with a median age of 19.9 years (12-33 years). Six of these patients received higher dose levels of 1.0×1010 TILs. The 11 patients were followed-up for 1 to 13 months and tolerated well. The most common adverse events reported were fever (10/11), constipation (3/11) and elevated gamma-glutamyl transferase (GGT) (3/11). The high incidence of fever was due to the IL-2 infusion. All patients experienced a transient drop in lymphocyte count and leukopenia leading to non-myeloid ablative lymphocyte clearance. The AE included grade 4 hematologic toxicity, including 8 cases of lymphocytopenia, 2 cases of neutropenia and 1 case of thrombocytopenia. No AE of neurotoxicity occurred. Of all the 11 patients, 9 patients got stable disease (SD) and 2 patients had progressive disease (PD). The disease control rate was 9/11. The median duration of SD was more than 4 months, and the maximum tumor volume decreased by close to 20%. Patient number 9 had sustained SD status for more than 6 months. Conclusions: TILs with in vitro expansion ability could be isolated from tumor tissues of advanced osteosarcoma patients. TILs amplified and reinfused in vitro have anti-osteosarcoma activity.
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Affiliation(s)
- C R Wang
- Department of Bone Tumor, Shanghai General Hospital, Shanghai 200080, China
| | - M Kang
- Department of Bone Tumor, Shanghai General Hospital, Shanghai 200080, China Shanghai Cell Therapy Clinical Transformation Engineering Technology Research Center, Shanghai 200080, China
| | - J Xu
- Department of Bone Tumor, Shanghai General Hospital, Shanghai 200080, China
| | - Y Lyu
- Department of Bone Tumor, Shanghai General Hospital, Shanghai 200080, China
| | - Y F Jiang
- Department of Bone Tumor, Shanghai General Hospital, Shanghai 200080, China
| | - M X Sun
- Department of Bone Tumor, Shanghai General Hospital, Shanghai 200080, China
| | - D Q Zuo
- Department of Bone Tumor, Shanghai General Hospital, Shanghai 200080, China
| | - J K Shen
- Department of Bone Tumor, Shanghai General Hospital, Shanghai 200080, China
| | - X J Ma
- Department of Bone Tumor, Shanghai General Hospital, Shanghai 200080, China
| | - W Sun
- Department of Bone Tumor, Shanghai General Hospital, Shanghai 200080, China
| | - Y Q Hua
- Department of Bone Tumor, Shanghai General Hospital, Shanghai 200080, China Shanghai Cell Therapy Clinical Transformation Engineering Technology Research Center, Shanghai 200080, China
| | - Zhengdong Cai
- Department of Bone Tumor, Shanghai General Hospital, Shanghai 200080, China
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Xue ZX, Wang LK, Sun SS, Zhou FF, Guo HW, Ma XJ. [Diagnosis and treatment of a case of infection caused by shark fin stabbing right hand for more than two years]. Zhonghua Nei Ke Za Zhi 2022; 61:691-693. [PMID: 35673753 DOI: 10.3760/cma.j.cn112138-20210602-00392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Affiliation(s)
- Z X Xue
- Department of Infection Control, Linyi People's Hospital, Linyi 276002, China
| | - L K Wang
- Department of Infection Control, Linyi People's Hospital, Linyi 276002, China
| | - S S Sun
- Microbiological Laboratory, Linyi People's Hospital, Linyi 276002, China
| | - F F Zhou
- Department of Infection Control, Linyi People's Hospital, Linyi 276002, China
| | - H W Guo
- Department of Pathology, Linyi People's Hospital, Linyi 276002, China
| | - X J Ma
- Department of Infectious Disease, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
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Ma XJ, Ding JK. [Application of skin and soft tissue expansion in repairing pediatric patients with superficial defects]. Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi 2022; 38:301-305. [PMID: 35462506 DOI: 10.3760/cma.j.cn501120-20211019-00359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Skin and soft tissue expansion can provide skin tissue similar to the recipient area in color and texture, which is one of the ideal methods in the repair of superficial defects. However, due to the long treatment cycle and relatively high complications rate in pediatric patients, expansion still faces many challenges. Based on the clinical practice and the current progress in skin and soft tissue expansion, this paper briefly discusses the change of skin after expansion, and the application, prevention and treatment of complications in the application of expansion in pediatric patients, aiming to provide reference for expansion in pediatric patients.
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Affiliation(s)
- X J Ma
- Department of Plastic Surgery, the First Affiliated Hospital of Air Force Medical University, Xi'an 710032, China
| | - J K Ding
- Department of Plastic Surgery, the First Affiliated Hospital of Air Force Medical University, Xi'an 710032, China
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Wang XL, Li YT, Ma XJ, Ling YS, Wu T, Niu JJ. [Evaluation of safety and immunogenicity of hepatitis E vaccine in maintenance hemodialysis patients]. Zhonghua Yu Fang Yi Xue Za Zhi 2022; 56:464-467. [PMID: 35488544 DOI: 10.3760/cma.j.cn112150-20220223-00168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To evaluate the safety and immunogenicity of hepatitis E vaccine(HEV)in Maintenance hemodialysis(MHD)patients. Methods: Based on an open-labeled controlled trial, from May 2016 to March 2018, 35 eligible MHD patients were recruited in the Hemodialysis Center of Zhongshan Hospital Affiliated to Xiamen University as the experimental group, and 70 MHD patients with matched age, gender and underlying diseases as the control group. The experimental group received HEV at 0, 1 and 6 months according to the standard vaccination procedures, while the control group received routine diagnosis and treatment without vaccine and placebo injection to observe the safety and immunogenicity of the vaccine. The safety of vaccine in MHD population was evaluated by the incidence of adverse reactions/events in the experimental and control groups. The immunogenicity of HEV in MHD patients was evaluated by comparing the data from the phase Ⅲ clinical trial. Results: The overall incidence of adverse reactions/events was 17.1% (18/105), and there were no grade 3-4 adverse reactions/events related to vaccination. In the experimental group, the incidence of local adverse reactions/events was 20.0% (7/35), and the incidence of systemic adverse reactions/events was 17.1% (6/35).There was no significant difference in the incidence of systemic adverse reactions/events between the experimental group and the control group (P>0.05). There were 23 patients receiving 3 doses with the standard schedule. The positive rate of HEV-IgG antibody was 100% and the GMC was 14.47(95%CI:13.14-15.80) WU/ml, which showed no significant difference compared with the 46 patients in Phase Ⅲ clinical trial (t=-1.04, P>0.05). Conclusion: Recombinant HEV has good safety and immunogenicity in MHD patients.
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Affiliation(s)
- X L Wang
- Hospital Infection Management Department,Xiamen Cardiovascular Hospital,Xiamen University,Xiamen 361008, China
| | - Y T Li
- Xiamen Zhong Shan Hospital, Xiamen University, Xiamen 361004, China
| | - X J Ma
- School of Public Health, Xiamen University, Xiamen 361102, China
| | - Y S Ling
- Xiamen Zhong Shan Hospital, Xiamen University, Xiamen 361004, China
| | - T Wu
- School of Public Health, Xiamen University, Xiamen 361102, China
| | - J J Niu
- Xiamen Zhong Shan Hospital, Xiamen University, Xiamen 361004, China
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21
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Dai SM, Yu Q, Ma XJ, Wang ZY, Zhang YG, Zhu M, Zhang CG, Zhu Q, Jiang L, Jin YJ, Pan H, Wu HY. [Prevalence of Clonorchis sinensis infections in freshwater fish in mainland China: A meta-analysis]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2021; 34:16-27. [PMID: 35266353 DOI: 10.16250/j.32.1374.2021230] [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] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
OBJECTIVE To understand the real prevalence of Clonorchis sinensis infections in the freshwater fish in mainland China, so as to provide insights into clonorchiasis control and detection of freshwater fish. METHODS All literatures reporting the prevalence of C. sinensis infections in the freshwater fish, the second intermediate host of the parasite, were jointly retrieved in Chinese and English electronic databases from January 1, 2010 to December 31, 2020, including Wanfang Data, CNKI, PubMed, Web of Science, Embase and Cochrane Library. All studies were screened based on inclusion and exclusion criteria, and the quality of all enrolled literatures was evaluated. The pooled prevalence of C. sinensis infections in freshwater fish and its 95% confidence interval (CI) were estimated using the software Stata version 15.0, and subgroup analyses were performed to investigate the region-, season- and sample source-specific pooled prevalence of C. sinensis infections in freshwater fish. In addition, the sensitivity and publication bias of all included studies were analyzed. RESULTS A total of 40 eligible literatures were included in this study, including 37 Chinese literatures and 3 English literatures, and there were 10 high-quality literatures, 27 moderate-quality literatures and 3 low-quality literatures. A total of 53 species containing 37 959 freshwater fish were reported in these 40 studies, and 73.58% (39/53) of freshwater fish species were identified with C. sinensis infections. Meta-analysis showed 23.5% [95% CI: (0.19, 0.28)] pooled prevalence of C. sinensis infections in freshwater fish in mainland China, and subgroup analyses higher prevalence of C. sinensis infections in freshwater fish in northeastern China [35.7%, 95% CI: (0.22, 0.50)] than in central [25.9%, 95% CI: (0.04, 0.48)] and southern China [20.6%, 95% CI: (0.09, 0.32)], higher prevalence of C. sinensis infections in freshwater fish sampled in spring [44.1%, 95% CI: (0.35, 0.53)] than in autumn [6.7%, 95% CI: (0.05, 0.08)] and summer [3.3%, 95% CI: (-0.01, 0.07)], and higher prevalence of C. sinensis infections in freshwater fish sampled from natural water [25.2%, 95% CI: (0.17, 0.33)] than from retail trades [22.2%, 95% CI: (0.17, 0.28)] and breeding chain [12.3%, 95% CI: (0.03, 0.22)]. However, all included studies had a publication bias with a low sensitivity. CONCLUSIONS The prevalence of C. sinensis infections is high in freshwater fish in mainland China, and there are still challenges for clonorchiasis control. Reinforcement of health education, diagnostics development and food safety supervision is recommended in future clonorchiasis control programs.
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Affiliation(s)
- S M Dai
- Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200025, China
| | - Q Yu
- Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200025, China
| | - X J Ma
- Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200025, China
| | - Z Y Wang
- Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200025, China
| | - Y G Zhang
- Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200025, China
| | - M Zhu
- Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200025, China
| | - C G Zhang
- Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200025, China
| | - Q Zhu
- Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200025, China
| | - L Jiang
- Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200025, China
| | - Y J Jin
- Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200025, China
| | - H Pan
- Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200025, China
| | - H Y Wu
- Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200025, China
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Zhang Q, Jin HY, Shen ZH, Ma XJ, Li CQ, Tang Z, Bai Y, Wang Z. Novel through-the-scope twin clip for the closure of GI wounds: the first experimental survival study in pigs (with videos). Gastrointest Endosc 2021; 94:850-858.e2. [PMID: 33965383 DOI: 10.1016/j.gie.2021.04.027] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Accepted: 04/27/2021] [Indexed: 02/08/2023]
Abstract
BACKGROUND AND AIMS We developed a through-the-scope twin clip (TTS-TC) for closing GI wounds. The objective of this study was to evaluate the efficacy and safety of the TTS-TC in GI wound closure. METHODS GI nonperforating and perforating wounds (≥2.5 cm) were created in live pigs. TTS-TCs were used to convert the large wounds into small wounds. The remaining small wounds were closed using conventional through-the-scope clips (TTSCs). The follow-up period was 1 month. Location and size of the wound, time of wound closure, intraoperative and postoperative adverse events, and conditions of wound healing were investigated. RESULTS Thirteen wounds were created in 5 live pigs, including 2 gastric nonperforating and 3 perforating wounds and 5 large intestinal nonperforating and 3 perforating wounds. The mean long and short diameters of the wounds were 4.1 (± .9) cm and 3.4 (± .7) cm, respectively. All wounds were successfully closed using the TTS-TCs combined with TTSCs. The total mean time for wound closure was 9.2 (± 5.3) minutes, and the mean time for using the TTS-TCs was 3.9 (± 4.7) minutes. During the 1-month follow-up period, no bleeding, perforation, or death occurred; all wounds healed with scar formation; and all TTS-TCs detached spontaneously. CONCLUSIONS The TTS-TC was successfully used to close large-sized GI wounds. The TTS-TC is a promising tool for large-size wound closure under flexible endoscopy.
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Affiliation(s)
- Qiang Zhang
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province, China
| | | | | | - Xiao-Jun Ma
- Micro-Tech Co, Ltd, Nanjing, Jiangshu, China
| | | | - Zhi Tang
- Micro-Tech Co, Ltd, Nanjing, Jiangshu, China
| | - Yang Bai
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province, China
| | - Zhen Wang
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province, China
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Dong C, Yu Z, Liu W, Liu HX, Tang YK, Ma XJ. [Establishment and validation of a clinical prediction model for infection risk at the placement sites of skin and soft tissue expanders]. Zhonghua Shao Shang Za Zhi 2021; 37:846-852. [PMID: 34645150 DOI: 10.3760/cma.j.cn501120-20200619-00314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To establish a clinical prediction model for infection risk at the placement sites of skin and soft tissue expanders (hereinafter termed as expanders) and to validate the predictive value of the model. Methods: A retrospective observational study was conducted. Totally 2 934 patients who underwent skin and soft tissue dilatation surgery in the Department of Plastic Surgery of the First Affiliated Hospital of Air Force Medical University from January 2009 to December 2018 and met the selection criteria were included. There were 1 867 males and 1 067 females, with a median age of 18 years. Totally 3 053 skin and soft tissue expansion procedures were performed with 4 266 expanders implanted. The following indexes were selected as predictor variables, including patients' age, gender, marital status, ethnicity, hospital admission, surgical indication, disease duration, with/without history of smoking, history of drinking, history of blood transfusion, history of underlying diseases, and inability to use cephalosporin antibiotics due to allergy, number of expander in a single placement, rated volume of expander, water injection rate of expander in the first time, placement site of expander, anesthesia method, duration of operation, and with/without postoperative hematoma evacuation, and infection at the placement site of expander as the outcome variable. Univariate analysis of the data was performed using least absolute shrinkage and selection operator (LASSO) regression to screen the potential risk factors affecting infection at the placement sites of expanders, the factors selected by the univariate analysis were subjected to binary multivariate logistic regression analysis to screen the independent risk factors affecting infection at the placement sites of expanders, and a nomogram prediction model for the occurrence of infection at the placement sites of expanders was established. The C index and Hosmer-Lemeshow goodness of fit test were used to evaluate the discrimination and accuracy of the model, respectively, and the bootstrap resampling was used for internal verification. Results: The results of LASSO regression showed that age, gender, hospital admission, surgical indication, disease duration, history of drinking, history of heart disease, history of viral hepatitis, history of hypertension, inability to use cephalosporin antibiotics due to allergy, number of expander in a single placement, rated volume of expander, placement site of expander, postoperative hematoma evacuation were the potential risk factors for infection at the placement sites of expanders (regression coefficient=-0.005, 0.170, 0.999, 0.054, 0.510, -0.003, 0.395, -0.218, 0.029, 0.848, -0.116, 0.175, 0.085, 0.202). Binary multivariate logistic regression analysis showed that male, emergency admission, disease duration ≤1 year, inability to use cephalosporin antibiotics due to allergy, rated volumes of expanders ≥200 mL and <400 mL or ≥400 mL, and expanders placed in the trunk or the limbs were the independent risks factors for infection at the placement sites of expanders (odds ratio=1.37, 3.21, 2.00, 2.47, 1.70, 1.73, 1.67, 2.16, 95% confidence interval=1.04-1.82, 1.09-8.34, 1.38-2.86, 1.29-4.41, 1.07-2.73, 1.02-2.94, 1.09-2.58, 1.07-4.10, P<0.05 or P<0.01). The C index for evaluating the discriminative degree of the model was 0.63, the Hosmer-Lemeshow goodness of fit test for evaluating the accuracy of the model showed P=0.685, and the C index for internal validation by the bootstrap resampling was 0.60. Conclusions: Male, emergency admission, disease duration ≤1 year, inability to use cephalosporin antibiotics due to allergy, rated volume of expander ≥200 mL, and expanders placed in the trunk or the limbs are the independent risk factors for infection at the placement sites of expanders. The clinical prediction model for infection risk at the placement sites of expanders was successfully established based on these factors and showed a certain predictive effect.
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Affiliation(s)
- C Dong
- Department of Plastic Surgery, the First Affiliated Hospital of Air Force Medical University, Xi'an 710032, China
| | - Z Yu
- Department of Plastic Surgery, the First Affiliated Hospital of Air Force Medical University, Xi'an 710032, China
| | - W Liu
- Department of Plastic Surgery, the First Affiliated Hospital of Air Force Medical University, Xi'an 710032, China
| | - H X Liu
- Department of Plastic Surgery, the First Affiliated Hospital of Air Force Medical University, Xi'an 710032, China
| | - Y K Tang
- Department of Plastic Surgery, the First Affiliated Hospital of Air Force Medical University, Xi'an 710032, China
| | - X J Ma
- Department of Plastic Surgery, the First Affiliated Hospital of Air Force Medical University, Xi'an 710032, China
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Ma HM, Liu Y, Ge Y, Huo Z, Ma XJ, Li TS. [Lobular panniculitis in a patient with Lyme borreliosis]. Zhonghua Nei Ke Za Zhi 2021; 60:764-767. [PMID: 34304455 DOI: 10.3760/cma.j.cn112138-20201115-00940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- H M Ma
- Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Y Liu
- Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Y Ge
- Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Z Huo
- Department of Pathology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - X J Ma
- Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - T S Li
- Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
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Wang LC, Tondnevis F, Todorov C, Gaspar J, Sahajan A, Murlidhar V, Zhang B, Ma XJ. Abstract LB190: DNAscopeTM: A novel chromogenic in-situ hybridization technology for high-resolution detection of DNA copy number and structural variations. Cancer Res 2021. [DOI: 10.1158/1538-7445.am2021-lb190] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Genomic DNA anomalies such as copy number variations (gene duplication, amplification, deletion) and gene rearrangements are important biomarkers and drug targets in many cancer types. DNA in-situ hybridization (ISH) is the gold standard method to directly visualize these molecular alterations in formalin-fixed paraffin-embedded (FFPE) tumor tissues at single-cell resolution within a histological section. However, currently available fluorescent ISH (FISH) assays provide limited morphological detail due to the use of fluorescent nuclear staining compared to chromogenic staining. Furthermore, FISH techniques rely on expensive fluorescence microscopes, risk loss of fluorescent signal over time and involve tedious imaging at high magnifications (100X). There is thus an unmet need for a sensitive and robust chromogenic DNA-ISH assay that can enable high-resolution detection of genomic DNA targets with the ease of bright-field microscopy. We present here DNAscope - a novel chromogenic DNA-ISH assay - for detecting and visualizing genomic DNA targets under a standard light microscope. DNAscope is based on the widely used RNAscope® double-Z probe design and signal amplification technology and provides unparalleled sensitivity and specificity with large signal dots readily visualized at 40X magnification and with full morphological context. Furthermore, DNAscope ensures specific DNA detection without interference from RNA due to the use of a novel RNA removal method. Using a duplex chromogenic detection assay in red and blue, we demonstrate highly specific and efficient detection of gene rearrangements (ALK, ROS1, RET and NTRK1), gene amplification (ERBB2, EGFR, MET) and deletion (TP53 and CDKN2A). The DNAscope assay has been carefully optimized for probe signal size and color contrast to enable easy interpretation of signal patterns under conventional light microscopy or digital pathology. Compared to conventional FISH assays, DNAscope probes are standard oligos that are designed in silico to be free of any repetitive sequences and can be rapidly synthesized for any DNA target. In conclusion, the DNAscope assay provides a powerful and convenient alternative to commonly used FISH assays in many cancer research applications.
Citation Format: Li-Chong Wang, Farzaneh Tondnevis, Courtney Todorov, Jayson Gaspar, Aparna Sahajan, Vasudha Murlidhar, Bingqing Zhang, Xiao-Jun Ma. DNAscopeTM: A novel chromogenic in-situ hybridization technology for high-resolution detection of DNA copy number and structural variations [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2021; 2021 Apr 10-15 and May 17-21. Philadelphia (PA): AACR; Cancer Res 2021;81(13_Suppl):Abstract nr LB190.
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Dikshit A, Phatak J, Hernandez L, Doolittle E, Murlidhar V, Zhang B, Ma XJ. Abstract LB235: Characterizing tumor-infiltrated immune cells with spatial context using an integrated RNAscope-immunohistochemistry co-detection workflow in FFPE tissues. Cancer Res 2021. [DOI: 10.1158/1538-7445.am2021-lb235] [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
Complex tissues such as tumors are comprised of multiple cells types and extracellular matrix. These cells include heterogenous populations of immune cells that infiltrate the tumors. Understanding the composition of these immune infiltrates in the tumor microenvironment (TME) can provide key insights to guide therapeutic intervention and predict treatment response. Thorough understanding of complex tissue dynamics and immune cell characterization requires a multi-omics approach. Simultaneous detection of RNA and protein using in situ hybridization (ISH) and immunohistochemistry/immunofluorescence (IHC/IF) can reveal cellular sources of secreted proteins, identify specific cell types, and visualize the spatial organization of cells within the tissue. However, a sequential workflow of ISH followed by IHC/IF frequently yields suboptimal protein detection because the protease digestion step in the ISH protocol resulting in poor antibody signal. Here we demonstrate a newly developed integrated ISH/IHC workflow that can substantially improve RNA-protein co-detection, enabling the visualization and characterization of tumor immune infiltrates at single-cell resolution with spatial and morphological context. To characterize tumor-infiltrating immune cells in a tumor TMA (tumor microarray), we utilized the RNAscope Multiplex Fluorescence assay in combination with the RNA-Protein Co-detection Kit to detect multiple immune cell populations. Immune cells such as macrophages, T cells and NK cells were detected using specific antibodies against CD68, CD8, CD4 and CD56, respectively. Precise characterization of these immune cells was achieved by using probes against targets such as CCL5, IFNG, GNZB, IL-12, NCR1 etc. that not only help in identifying specific immune cells but also assist in determining their activation states. We identified subsets of T cells such as CD4+ regulatory T cells and CD8+ cytotoxic T lymphocytes. Additionally, we were able to determine the activation states of CD8+ T cells by visualizing the expression of IFNG and GZMB. Furthermore, infiltrating macrophages were identified by detecting the CD68 protein expression while the M1 and M2 subsets were differentiated by detecting the M2-specific target RNA for CD163. Similarly, NK cells were identified by detecting CD56 protein in combination with CCL5 and NCR1 RNA expression. Interestingly, the degree of infiltration of the different immune cell populations varied based on the tumor type. In conclusion, the new RNAscope-ISH-IHC co-detection workflow and reagents enable optimized simultaneous visualization of RNA and protein targets by enhancing the compatibility of antibodies - including many previously incompatible antibodies - with RNAscope. This new workflow provides a powerful new approach to identifying and characterizing tumor infiltrating populations of immune cells.
Citation Format: Anushka Dikshit, Jyoti Phatak, Lydia Hernandez, Emerald Doolittle, Vasudha Murlidhar, Bingqing Zhang, Xiao-Jun Ma. Characterizing tumor-infiltrated immune cells with spatial context using an integrated RNAscope-immunohistochemistry co-detection workflow in FFPE tissues [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2021; 2021 Apr 10-15 and May 17-21. Philadelphia (PA): AACR; Cancer Res 2021;81(13_Suppl):Abstract nr LB235.
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Affiliation(s)
| | - Jyoti Phatak
- Advanced Cell Diagnostics, a Bio-techne brand, Newark, CA
| | | | | | | | - Bingqing Zhang
- Advanced Cell Diagnostics, a Bio-techne brand, Newark, CA
| | - Xiao-Jun Ma
- Advanced Cell Diagnostics, a Bio-techne brand, Newark, CA
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Tian YP, Hu XJ, Ma XJ, Gu Q, Ge XL, Yang M, Jia P, Huang GY. [The distribution and variance of neonatal pulse oxygen saturation at different altitudes]. Zhonghua Yi Xue Za Zhi 2021; 101:1410-1414. [PMID: 34034369 DOI: 10.3760/cma.j.cn112137-20200831-02504] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To analyze the distribution and variance of neonatal pulse oxygen saturation (SpO2) at different altitudes in China, and provide a new evidence for the screening of NCHD at high altitudes. Methods: Based on the database of National Screening Project of NCHD, the distribution of SpO2 values was described in 26 766 newborns at altitudes of 0-100 m, 600-700 m, 900-1 100 m, 1 400-1 600 m, 1 900-2 100 m, and 2 200-2 500 m. One-way analysis of variance was used to analyze the differences among SpO2 values in newborns at different altitudes. Results: The average SpO2 values of right hand in newborns at altitudes of 0-100 m, 600-700 m, 900-1 100 m, 1 400-1 600 m, 1 900-2 100 m and 2 200-2 500 m were 97.7%±1.4%, 97.1%±1.1%, 96.1%±1.3%, 96.0%±1.7%, 95.9%±1.7% and 95.5%±2.4%, respectively. And corresponding average SpO2 values of either foot were 97.7%±1.4%, 96.9%±1.1%, 96.3%±1.4%, 96.0%±1.7%, 95.6%±1.8% and 95.2%±2.7%, respectively. There were statistically significant differences in the average SpO2 values of newborns at different altitudes (right hand: F=1 248.35, P<0.001; either foot: F=1 280.45, P<0.001). The SpO2 of newborns tended to be lower with the increase of altitudes (P-trend<0.001). Conclusion: SpO2 values in newborns were negatively associated with the altitudes, which indicated that the cut-off value of screening for NCHD at sea level might not be applicable to newborns at higher altitudes. Thus, it is worthwhile to conducted studies on the normal values of SpO2 and the cut-off value of screening for NCHD in newborns at high altitudes.
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Affiliation(s)
- Y P Tian
- Children's Hospital of Fudan University, Shanghai 201102
| | - X J Hu
- Children's Hospital of Fudan University, Shanghai 201102
| | - X J Ma
- Children's Hospital of Fudan University, Shanghai 201102
| | - Q Gu
- Children's Hospital of Fudan University, Shanghai 201102
| | - X L Ge
- Children's Hospital of Fudan University, Shanghai 201102
| | - M Yang
- Children's Hospital of Fudan University, Shanghai 201102
| | - P Jia
- Children's Hospital of Fudan University, Shanghai 201102
| | - G Y Huang
- Children's Hospital of Fudan University, Shanghai 201102
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Dikshit A, Phatak J, Hernandez L, Doolittle E, Murlidhar V, Zhang B, Ma XJ. Characterizing tumor-infiltrated immune cells with spatial context using an integrated RNAscope-immunohistochemistry workflow in FFPE tissues. The Journal of Immunology 2021. [DOI: 10.4049/jimmunol.206.supp.68.09] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Abstract
Abstract
Characterizing heterogenous populations of tumor-infiltrating immune cells requires a multi-omics approach. Here we demonstrate a newly developed integrated in situ hybridization (ISH) and immunohistochemistry (IHC/IF) workflow that can substantially improve RNA-protein co-detection, enabling the visualization and characterization of tumor immune infiltrates at single-cell and spatial resolution.
To characterize tumor-infiltrating immune cells in a tumor TMA (tumor microarray), we utilized the RNAscope Multiplex Fluorescence assay in combination with the RNA-Protein Co-detection Kit to detect multiple immune cell populations. Immune cells such as macrophages, T cells and NK cells were detected using antibodies against CD68, CD8, CD4 and CD56 in combination with probes targeting CCL5, IFNG, GNZB, IL-12, NCR1 etc.
We identified CD4+ regulatory T cells and CD8+ cytotoxic T lymphocytes. Additionally, we determine the activation states of CD8+ T cells by visualizing IFNG and GZMB expression. Furthermore, infiltrating macrophages were detected by CD68 protein expression while the M1 and M2 subsets were differentiated by using the M2-specific marker, CD163. NK cells were identified by detecting CD56 protein in combination with CCL5 and NCR1 RNA expression. The degree of immune cell infiltration varied based on the tumor type.
In conclusion, the new RNAscope-ISH-IHC co-detection workflow and reagents enable optimized simultaneous visualization of RNA and protein targets by enhancing the compatibility of antibodies, including many previously incompatible antibodies with RNAscope . This new workflow provides a powerful approach to identifying and characterizing tumor infiltrating immune cells.
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Affiliation(s)
| | | | | | | | | | | | - Xiao-Jun Ma
- 1Advanced Cell Diagnostics, a Bio-Techne brand
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Zheng FY, Liu YB, Huang H, Xu S, Ma XJ, Liu YZ, Chu HC. The impact of IPACK combined with adductor canal block under ultrasound guidance on early motor function after total knee arthroplasty. Braz J Anesthesiol 2021; 72:110-114. [PMID: 33915199 PMCID: PMC9373452 DOI: 10.1016/j.bjane.2021.04.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Revised: 04/01/2021] [Accepted: 04/14/2021] [Indexed: 11/19/2022] Open
Abstract
Background This study aimed to evaluate the impact of Infiltration between the Popliteal Artery and Capsule of the posterior Knee (IPACK) combined with an adductor canal block under the guidance of ultrasound on early motor function after Total Knee Arthroplasty (TKA). Methods A sample of 60 cases who were scheduled for elective unilateral TKA were divided into two groups using random number table method: a group with IPACK combined with an adductor canal block (I group, n = 30), and a group with femoral nerve block combined with superior popliteal sciatic nerve block (FS group, n = 30). Before anesthesia induction was completed, the patients in I group received an ultrasound-guided adductor canal block with 15 mL of 0.375% ropivacaine and an IPACK block with 25 mL of ropivacaine, and the patients in FS group received a femoral nerve block and a superior popliteal sciatic nerve block with 20 mL of 0.375% ropivacaine under ultrasound guidance. Post-operation, all the patients received patient-controlled intravenous analgesia combined with an oral celecoxib capsule to relieve pain and maintain a visual analogue scale score of ≤ 3. Results The quadriceps femoris muscle strength score was significantly higher in Ⅰ group than in FS group (p = 0.001), while the modified Bromage score were significantly lower and walking distance results were significantly higher in Ⅰ group than in FS group (both p = 0.000). Conclusion Compared with femoral nerve block combined with superior popliteal sciatic nerve block, IPACK combined with adductor canal block had a mild impact on early motor functions after TKA.
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Affiliation(s)
- Fang-Yu Zheng
- The Affiliated Hospital of Qingdao University, Department of Anesthesiology, Qingdao, China; Women and Children's Hospital, Qingdao University, Department of Anesthesiology, Qingdao, China
| | - Yong-Bo Liu
- The Affiliated Hospital of Qingdao University, Department of Operating Room, Qingdao, China
| | - Hui Huang
- The Affiliated Hospital of Qingdao University, Department of Anesthesiology, Qingdao, China
| | - Shuai Xu
- The Affiliated Hospital of Qingdao University, Department of Cardiovascular Surgery Intensive Care Unit, Qingdao, China
| | - Xiao-Jun Ma
- The Affiliated Hospital of Qingdao University, Department of Anesthesiology, Qingdao, China
| | - Ying-Zhi Liu
- The Affiliated Hospital of Qingdao University, Department of Anesthesiology, Qingdao, China.
| | - Hai-Chen Chu
- The Affiliated Hospital of Qingdao University, Department of Anesthesiology, Qingdao, China
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Liu SZ, Luo YH, Morais CLM, Ma XJ, Yang LJ, Tan DC, Li JB, Liao BY, Wei YF, Martin FL, Pang WY. Spectrochemical determination of effects on rat liver of binary exposure to benzo[a]pyrene and 2,2',4,4'-tetrabromodiphenyl ether. J Appl Toxicol 2021; 41:1816-1825. [PMID: 33759217 DOI: 10.1002/jat.4165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 03/05/2021] [Accepted: 03/06/2021] [Indexed: 11/10/2022]
Abstract
Benzo[a]pyrene (B[a]P) and polybrominated diphenyl ethers (PBDEs) are persistent environmental contaminants. The effects in organisms of exposures to binary mixtures of such contaminants remain obscure. Attenuated total reflection Fourier-transform infrared (ATR-FTIR) spectroscopy is a label-free, non-destructive analytical technique allowing spectrochemical analysis of macromolecular components, and alterations thereof, within tissue samples. Herein, we employed ATR-FTIR spectroscopy to identify biomolecular changes in rat liver post-exposure to B[a]P and BDE-47 (2,2',4,4'-tetrabromodiphenyl ether) congener mixtures. Our results demonstrate that significant separation occurs between spectra of tissue samples derived from control versus exposure categories (accuracy = 87%; sensitivity = 95%; specificity = 79%). Additionally, there is significant spectral separation between exposed categories (accuracy = 91%; sensitivity = 98%; specificity = 90%). Segregation between control and all exposure categories were primarily associated with wavenumbers ranging from 1600 to 1700 cm-1 . B[a]P and BDE-47 alone, or in combination, induces liver damage in female rats. However, it is suggested that binary exposure apparently attenuates the toxic effects in rat liver of the individual contaminants. This is supported by morphological observations of liver tissue architecture on hematoxylin and eosin (H&E)-stained liver sections. Such observations highlight the difficulties in predicting the endpoint effects in target tissues of exposures to mixtures of environmental contaminants.
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Affiliation(s)
- Shu-Zhen Liu
- Department of Environmental Health and Occupational Medicine, School of Public Health, Guilin Medical University, Guilin, China
| | - You-Hong Luo
- Department of Environmental Health and Occupational Medicine, School of Public Health, Guilin Medical University, Guilin, China.,Hengyang Central Hospital, Hengyang, China
| | | | - Xiao-Jun Ma
- Department of Environmental Health and Occupational Medicine, School of Public Health, Guilin Medical University, Guilin, China
| | - Li-Jun Yang
- Department of Environmental Health and Occupational Medicine, School of Public Health, Guilin Medical University, Guilin, China
| | - De-Chan Tan
- Department of Environmental Health and Occupational Medicine, School of Public Health, Guilin Medical University, Guilin, China
| | - Jin-Bo Li
- Department of Environmental Health and Occupational Medicine, School of Public Health, Guilin Medical University, Guilin, China
| | - Bao-Yi Liao
- Department of Environmental Health and Occupational Medicine, School of Public Health, Guilin Medical University, Guilin, China
| | - Yuan-Feng Wei
- Department of Environmental Health and Occupational Medicine, School of Public Health, Guilin Medical University, Guilin, China
| | | | - Wei-Yi Pang
- Department of Environmental Health and Occupational Medicine, School of Public Health, Guilin Medical University, Guilin, China
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Jian CH, Zhao AH, Ma XJ, Lu W, Zhu W, Wang YF, Zhou J, Bao YQ. [Research on consistency of different measurement methods for saliva 1,5-anhydroglucitol]. Zhonghua Yi Xue Za Zhi 2020; 100:3291-3295. [PMID: 33202489 DOI: 10.3760/cma.j.cn112137-20200312-00726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To evaluate the consistency of different measurement methods of saliva 1,5-anhydroglucitol (1,5-AG) in different glucose metabolism populations. Methods: From January 2018 to June 2019, 175 healthy volunteers (21-65 years, 58 males and 117 females) with normal glucose tolerance (NGT) and 80 diabetic patients (18-70 years, 44 males and 36 females) were enrolled in Shanghai Jiao Tong University Affiliated Sixth People's Hospital. Saliva was collected by saliva collection tube, and 1,5-AG was measured using both enzymatic and mass spectrometry methods. Serum 1,5-AG was determined by enzymatic method. Results: In NGT subjects, both serum and saliva 1,5-AG levels detected by enzymatic method were positively correlated with the saliva 1,5-AG levels detected by liquid chromatography-mass spectrometry (r=0.247 and 0.523, respectively, both P<0.05). However, there was no significant correlation between saliva and serum 1,5-AG levels detected by enzymatic method (r=-0.074, P=0.333). In diabetic patients, both serum and saliva 1,5-AG levels detected by enzymatic method were positively correlated with the saliva 1,5-AG levels detected by gas chromatography-mass spectrometry (r=0.284 and 0.423, respectively, both P<0.05). However, there was no significant correlation between saliva and serum 1,5-AG levels detected by enzymatic method (r=-0.079, P=0.487). Conclusions: Both serum and saliva 1,5-AG levels detected by enzymatic method have a good consistency with saliva 1,5-AG levels detected by mass spectrometry method. The saliva and serum 1,5-AG levels detected by enzymatic method are not well correlated, and thus the enzymatic detection of saliva 1,5-AG needs further improvement in clinical practice.
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Affiliation(s)
- C H Jian
- Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Clinical Center for Diabetes, Shanghai 200233, China
| | - A H Zhao
- Center for Translational Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China
| | - X J Ma
- Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Clinical Center for Diabetes, Shanghai 200233, China
| | - W Lu
- Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Clinical Center for Diabetes, Shanghai 200233, China
| | - W Zhu
- Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Clinical Center for Diabetes, Shanghai 200233, China
| | - Y F Wang
- Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Clinical Center for Diabetes, Shanghai 200233, China
| | - J Zhou
- Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Clinical Center for Diabetes, Shanghai 200233, China
| | - Y Q Bao
- Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Clinical Center for Diabetes, Shanghai 200233, China
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Wang XY, Ge Y, Ma XJ. [The correlation between urine routine test, mid-stream urine culture and the diagnosis of urinary tract infection]. Zhonghua Nei Ke Za Zhi 2020; 59:570-573. [PMID: 32594696 DOI: 10.3760/cma.j.cn112138-20190822-00581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- X Y Wang
- Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China(is working on Department of Infectious Diseases, Linyi City Central Hospital, Linyi, Shandong 276400, China)
| | - Y Ge
- Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - X J Ma
- Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
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Ma XJ, Song TY, Wang WL, Zhang ZW. Effect of microRNA-129-5p targeting high mobility group protein box1 on regulating inflammation in lipopolysaccharide-activated primary spinal microglia cells. J BIOL REG HOMEOS AG 2020; 34:1423-1430. [PMID: 32896114 DOI: 10.23812/20-133-l] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- X J Ma
- Department of Anesthesiology, The First Hospital of Shijiazhuang, Shijiazhuang, China
| | - T Y Song
- Department of Anesthesiology, The First Hospital of Shijiazhuang, Shijiazhuang, China
| | - W L Wang
- Department of Gynaecology, Maternal and Child Health Care Hospital of Shijiazhuang, Shijiazhuang, China
| | - Z W Zhang
- Department of Anesthesiology, The Bethune International Peace Hospital of P.L.A., Shijiazhuang, China
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Ma XJ, Fu JD, Tang YM, Yu TF, Yin ZG, Chen J, Zhou YB, Chen M, Xu ZS, Ma YZ. GmNFYA13 Improves Salt and Drought Tolerance in Transgenic Soybean Plants. Front Plant Sci 2020; 11:587244. [PMID: 33193539 PMCID: PMC7644530 DOI: 10.3389/fpls.2020.587244] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Accepted: 09/25/2020] [Indexed: 05/31/2023]
Abstract
NF-YA transcription factors function in modulating tolerance to abiotic stresses that are serious threats to crop yields. In this study, GmNFYA13, an NF-YA gene in soybean, was strongly induced by salt, drought, ABA, and H2O2, and suppressed by tungstate, an ABA synthesis inhibitor. The GmNFYA13 transcripts were detected in different tissues in seedling and flowering stages, and the expression levels in roots were highest. GmNFYA13 is a nuclear localization protein with self-activating activity. Transgenic Arabidopsis plants overexpressing GmNFYA13 with higher transcript levels of stress-related genes showed ABA hypersensitivity and enhanced tolerance to salt and drought stresses compared with WT plants. Moreover, overexpression of GmNFYA13 resulted in higher salt and drought tolerance in OE soybean plants, while suppressing it produced the opposite results. In addition, GmNFYA13 could bind to the promoters of GmSALT3, GmMYB84, GmNCED3, and GmRbohB to regulate their expression abundance in vivo. The data in this study suggested that GmNFYA13 enhanced salt and drought tolerance in soybean plants.
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Affiliation(s)
- Xiao-Jun Ma
- Institute of Crop Science/Institute of Urban Agriculture, Chinese Academy of Agricultural Sciences (CAAS)/National Key Facility for Crop Gene Resources and Genetic Improvement, Key Laboratory of Biology and Genetic Improvement of Triticeae Crops, Ministry of Agriculture, Beijing, China
| | - Jin-Dong Fu
- Institute of Crop Science/Institute of Urban Agriculture, Chinese Academy of Agricultural Sciences (CAAS)/National Key Facility for Crop Gene Resources and Genetic Improvement, Key Laboratory of Biology and Genetic Improvement of Triticeae Crops, Ministry of Agriculture, Beijing, China
| | - Yi-Miao Tang
- Beijing Engineering Research Center for Hybrid Wheat, The Municipal Key Laboratory of the Molecular Genetics of Hybrid Wheat, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Tai-Fei Yu
- Institute of Crop Science/Institute of Urban Agriculture, Chinese Academy of Agricultural Sciences (CAAS)/National Key Facility for Crop Gene Resources and Genetic Improvement, Key Laboratory of Biology and Genetic Improvement of Triticeae Crops, Ministry of Agriculture, Beijing, China
| | - Zhen-Gong Yin
- Institute of Crop Resources, Heilongjiang Academy of Agricultural Sciences, Heilongjiang, China
| | - Jun Chen
- Institute of Crop Science/Institute of Urban Agriculture, Chinese Academy of Agricultural Sciences (CAAS)/National Key Facility for Crop Gene Resources and Genetic Improvement, Key Laboratory of Biology and Genetic Improvement of Triticeae Crops, Ministry of Agriculture, Beijing, China
| | - Yong-Bin Zhou
- Institute of Crop Science/Institute of Urban Agriculture, Chinese Academy of Agricultural Sciences (CAAS)/National Key Facility for Crop Gene Resources and Genetic Improvement, Key Laboratory of Biology and Genetic Improvement of Triticeae Crops, Ministry of Agriculture, Beijing, China
| | - Ming Chen
- Institute of Crop Science/Institute of Urban Agriculture, Chinese Academy of Agricultural Sciences (CAAS)/National Key Facility for Crop Gene Resources and Genetic Improvement, Key Laboratory of Biology and Genetic Improvement of Triticeae Crops, Ministry of Agriculture, Beijing, China
| | - Zhao-Shi Xu
- Institute of Crop Science/Institute of Urban Agriculture, Chinese Academy of Agricultural Sciences (CAAS)/National Key Facility for Crop Gene Resources and Genetic Improvement, Key Laboratory of Biology and Genetic Improvement of Triticeae Crops, Ministry of Agriculture, Beijing, China
| | - You-Zhi Ma
- Institute of Crop Science/Institute of Urban Agriculture, Chinese Academy of Agricultural Sciences (CAAS)/National Key Facility for Crop Gene Resources and Genetic Improvement, Key Laboratory of Biology and Genetic Improvement of Triticeae Crops, Ministry of Agriculture, Beijing, China
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Xia CD, Xue JD, Di HP, Cao DY, Han DW, Xie JF, Guo HN, Xing PP, Ma XJ. [Clinical effects of single pedicle transfer of expanded axial flap across the midline of the frontal-parietal region in reconstruction of large scar deformities in the face and neck]. Zhonghua Shao Shang Za Zhi 2020; 36:838-844. [PMID: 32972069 DOI: 10.3760/cma.j.cn501120-20200311-00149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the clinical effects of single pedicle transfer of expanded axial flap across the midline of the frontal-parietal region in reconstruction of large scar deformities in the face and neck. Methods: From January 2016 to August 2019, 10 male patients, aged from 20 to 52 years with post-burn facial and cervical scar deformities, were admitted to the First People's Hospital of Zhengzhou, with the size of scar ranging from 15 cm×7 cm to 23 cm×11 cm. In the first stage, a cylindrical skin and soft tissue expander with rated capacity ranging from 400 to 600 mL was placed in the frontal-parietal region. Another cylindrical expander with rated capacity ranging from 50 to 100 mL was placed in the temporal region of the patient with scars in front of the ear and in cheek. The injection time was 3 to 5 months with the total injection volume being 1.5 to 2.5 times of the rated capacity of expander. In the second stage, the superficial temporal artery frontal branch and its branches were explored, the expander was removed, the scars in the face and neck were conducted resection and contracture relaxation, and the single pedicle transfer of expanded axial flap across the midline of the frontal-parietal region for reconstruction was performed. When the branches of the superficial temporal vessels were difficult to be detected by Doppler ultrasonic blood stream detector, the patient underwent computed tomography (CT) angiography and three-dimensional reconstruction. The donor site in frontal-parietal region was directly sutured, and the wound of the exposed donor site at the pedicle and temporal region was temporarily covered with scar skin. After the suture wound was healed and the hair in expanded flap grew out, hair removal and laser hair removal were performed. Three to four weeks after transplantation of expanded flap, the flap pedicle was cut off, restored, and trimmed in the third stage. The status about the completion of operation, the implantation of expander in the temporal region, CT angiography and three-dimensional reconstruction were recorded. The effective resection area of expanded flap, the length across the midline and the length of the pedicle, and the survival status of the expanded flap and complications after operation were observed. The appearance of donor and recipient sites, the scar recurrence, the appearance and function improvement of patients, and the satisfaction degree of patients were followed up. Results: All the 10 patients successfully completed three stages of operation, of which 6 patients had an auxiliary expander placement in the temporal region, and 5 patients underwent CT angiography and three-dimensional reconstruction. The effective resection area of expanded flap ranged from 18 cm×8 cm to 25 cm×13 cm. The distal end of the flap across the midline extended 4-6 cm to the opposite side, and the length of pedicle was 2-6 cm. All the expanded flaps of patients survived well after formation and transfer. The venous reflux disorder and obvious swelling occurred in 6 patients at the distal end of the flap after operation, and the blood supply recovered after acupuncture bloodletting, etc. Follow-up of 6 to 24 months showed that the color, texture, and thickness of the expanded flaps were similar to those of the facial skin, and no recurrence of scar was observed; the incision in the donor site of the frontal-parietal region was concealed, the hair growth of the temples and head was normal, and the reconstructed hairline was natural; compared with those before operation, the appearance, head-up, mouth-opening, and other functions of patients were significantly improved; the patients were satisfied with the effect of reconstruction. Conclusions: Clinical application of single pedicle transfer of expanded axial flap across the midline of the frontal-parietal region in reconstruction of large scar deformities in the face and neck can achieve a good appearance and function, and the donor site shows good shape, which enriches the application range of the trans-regional blood supply flap. It is a reliable method for reconstruction of large scar deformities in the face and neck.
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Affiliation(s)
- C D Xia
- Department of Burns, the First People's Hospital of Zhengzhou, Zhengzhou 450004, China
| | - J D Xue
- Department of Burns, the First People's Hospital of Zhengzhou, Zhengzhou 450004, China
| | - H P Di
- Department of Burns, the First People's Hospital of Zhengzhou, Zhengzhou 450004, China
| | - D Y Cao
- Department of Burns, the First People's Hospital of Zhengzhou, Zhengzhou 450004, China
| | - D W Han
- Department of Burns, the First People's Hospital of Zhengzhou, Zhengzhou 450004, China
| | - J F Xie
- Department of Burns, the First People's Hospital of Zhengzhou, Zhengzhou 450004, China
| | - H N Guo
- Department of Burns, the First People's Hospital of Zhengzhou, Zhengzhou 450004, China
| | - P P Xing
- Department of Burns, the First People's Hospital of Zhengzhou, Zhengzhou 450004, China
| | - X J Ma
- Department of Plastic Surgery, the First Affiliated Hospital of Air Force Military Medical University, Xi'an 710032, China
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Lu YY, Ma XJ, Yang YN. MicroRNA-18a-5p mitigates oxygen-glucose-deprivation/reoxygenation-induced injury through suppression of TLRs/NF-κB signaling by targeting TLR8 in PC12 cells. Biosci Biotechnol Biochem 2020; 84:2476-2483. [PMID: 32815784 DOI: 10.1080/09168451.2020.1806705] [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: 01/22/2023]
Abstract
This work aimed to assess the role of TLR8 in cerebral I/R injury and its in-depth pathogenesis. Bioinformatics analysis indicated that TLR8 was up-regulated in patients with ischemic stroke than that in healthy control, and miR-18a-5p was the upstream regulatory of TLR8. Then, the rat pheochromocytoma PC12 cells were exposed in oxygen-glucose-deprivation/reoxygenation (OGD/R) conditions to construct a model in vitro. The functional experiments indicated that OGD/R can decline the viability and elevate the apoptosis of PC12 cells, while up-regulation of miR-18a-5p can alleviate OGD/R-induced cell injury. Notably, overexpression of TLR8 reverses the miR-18a-5p-mediated protection on OGD/R-induced cells injury. Finally, we found that up-regulation of miR-18a-5p obviously declined the protein levels of TLR4 and TLR7 as well as the phosphorylation of NF-κB, while overexpression of TLR8 canceled the decrease caused by miR-18a-5p up-regulation. In summing, our results illustrated that miR-18a-5p/TLR8 axis can mitigate OGD/R-induced cells injury through TLRs and NF-κB pathway.
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Affiliation(s)
- Ying-Yun Lu
- Department of Severe Rehabilitation, Shandong Provincial Third Hospital , Jinan, P.R. China
| | - Xiao-Jun Ma
- Department of Geriatrics, Shandong Provincial Third Hospital , Jinan, P.R. China
| | - Yan-Na Yang
- Department of Respiratory, Jinan Central Hospital Affiliated to Shandong First Medical University , Jinan, P.R. China
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Dikshit A, Jarnagin H, Doolittle E, Anderson C, Zhang B, Ma XJ. Abstract 2705: Visualization of KRAS point mutations in non-small cell lung cancer tumors with morphological context using the BaseScope in situ hybridization assay. Cancer Res 2020. [DOI: 10.1158/1538-7445.am2020-2705] [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
About 25% of non-small cell lung cancer (NSCLC) patients bear one or more KRAS mutations in their tumors, which is correlated with poor prognosis. The precise identification of somatic mutations in tumors is becoming increasingly important for studying tumor progression and developing targeted therapies. While sequencing technologies allow for mutation-profiling, they do not permit direct visualization and association of genetic alterations with cellular morphology. In addition, DNA mutational status does not predict expression of the mutant allele which may provide information connecting genotype to phenotype. Therefore, a technology for mutation detection at the transcript level directly in the tumor context is desirable. To address this need we developed a specialized RNA in situ hybridization (ISH) method known as BaseScope. The BaseScope assay has a unique signal amplification system that allows for highly sensitive and specific detection of single nucleotide point mutations in tissues. BaseScope probes specific for KRAS G12C, G12A, G12V, G12S and wild type KRAS were designed and expression of each point mutation was assessed in a NSCLC tumor microarray with 48 tumor cores with known KRAS mutation status as determined by DNA sequencing. RNA quality and background signal threshold for each tumor core were determined using PPIB (positive) and dapB (negative) control probes. Using the sequencing data as the gold standard, the BaseScope assay demonstrated 83-100% sensitivity and 97-100% specificity for various KRAS mutations [Table 1]. For KRAS G12C, the assay correctly identified all 6 sequencing-positive cores and identified the rest as negatives. For KRAS G12V, the assay detected 5 of 6 mutated cores with 100% specificity. Interestingly, for KRAS G12S and KRAS G12A mutations, the BaseScope assay demonstrated 100% sensitivity and 97% specificity. Furthermore, it was observed that 100% of the KRAS-mutated tumors showed expression for both wild type and mutant KRAS alleles within these NSCLC tumors. In summary, we demonstrate the development of an RNA ISH assay for point mutations detection with morphological context in FFPE tissues. Unlike current sequencing methods that lack spatial information this assay has the unique ability to identify very small subclones whose frequency within the tumor might fall below the detection limit of sequencing.
Performance characteristics of BaseScope KRAS assaysKRAS POINT MUTATIONSNo. of cores with specified mutationsNo. of cores without specified mutationsBaseScope sensitivityBaseScope specificityG12C633100% (6/6)100% (33/33)G12A336100% (3/3)97.2% (35/36)G12V63383% (5/6)100% (33/33)G12S138100% (1/1)97.3% (37/38)
Citation Format: Anushka Dikshit, Helen Jarnagin, Emerald Doolittle, Courtney Anderson, Bingqing Zhang, Xiao-Jun Ma. Visualization of KRAS point mutations in non-small cell lung cancer tumors with morphological context using the BaseScope in situ hybridization assay [abstract]. In: Proceedings of the Annual Meeting of the American Association for Cancer Research 2020; 2020 Apr 27-28 and Jun 22-24. Philadelphia (PA): AACR; Cancer Res 2020;80(16 Suppl):Abstract nr 2705.
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Dikshit A, Phatak J, Kernag S, Pimental H, Zong H, Todorov C, Hernandez L, Kim J, Zhang B, Anderson C, Ma XJ. Abstract 2706: Spatially resolve RNA and protein simultaneously in FFPE tumor samples by combining RNAscope in situ hybridization and immunohistochemistry assays. Cancer Res 2020. [DOI: 10.1158/1538-7445.am2020-2706] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Spatially resolved gene expression has emerged as a crucial technique to understand complex multicellular interactions within the tumor and its microenvironment. Interrogation of complex cellular interactions within the tumor microenvironment (TME) requires a multi-omics approach where multiple RNA and protein targets can be visualized within the same tumor sample and be feasible in FFPE sample types. Simultaneous detection of RNA and protein can reveal cellular sources of secreted proteins, identify specific cell types, and visualize the spatial organization of cells within the tissue. Examination of RNA by in situ hybridization (ISH) and protein by immunohistochemistry (IHC) or immunofluorescence (IF) are widely used and accepted techniques for the detection of biomarkers in tumor samples. Given the similarities in workflow, co-detection of RNA and protein by combining ISH and IHC/IF in a single assay can be a powerful multi-omics solution for interrogating the complex tumor and its microenvironment. In this report we combined the single cell, single molecule RNA ISH technology known as RNAscope with IHC/IF to simultaneously detect RNA and protein in the same FFPE tumor section using both chromogenic and fluorescence detection methods. We demonstrate co-localization of target mRNA and the corresponding protein in human cancer samples, visualize infiltration of immune cells into the TME, characterize the activation state of immune cells in the TME, identify single cell gene expression within cellular boundaries demarcated by IHC/IF, examine cell type-specific expression of multiple immune checkpoint markers, and distinguish endogenous T cells from activated CAR+ T cells. Overall, we show that co-detection of RNA by the RNAscope ISH assay and protein by the IHC/IF assay in the same FFPE section is a feasible methodology. The combined RNAscope ISH-IHC/IF workflow is a powerful technique that can be used to study gene expression signatures at the RNA and protein level with spatial and single cell resolution. By leveraging the strength of the similar workflows of RNAscope ISH and IHC/IF assays, this methodology combines transcriptomics and proteomics in the same tissue section, providing a multi-omics approach for characterizing complex tissues and revealing cell type specific gene expression with spatial and single cell resolution.
Citation Format: Anushka Dikshit, Jyoti Phatak, Siobhan Kernag, Helly Pimental, Hailing Zong, Courtney Todorov, Lydia Hernandez, Jeffrey Kim, Bingqing Zhang, Courtney Anderson, Xiao-Jun Ma. Spatially resolve RNA and protein simultaneously in FFPE tumor samples by combining RNAscope in situ hybridization and immunohistochemistry assays [abstract]. In: Proceedings of the Annual Meeting of the American Association for Cancer Research 2020; 2020 Apr 27-28 and Jun 22-24. Philadelphia (PA): AACR; Cancer Res 2020;80(16 Suppl):Abstract nr 2706.
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Dikshit A, Zollinger D, Merritt C, Nguyen K, McKay-Fleisch J, Anderson C, Ma XJ. Abstract 2707: Molecularly guided highly multiplexed digital spatial analysis reveals differential gene expression profiles in the WNT-β-catenin pathway between melanoma and prostate tumors. Cancer Res 2020. [DOI: 10.1158/1538-7445.am2020-2707] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
The canonical WNT-β-catenin signaling pathway is vital for development and tissue homeostasis but becomes strongly tumorigenic when dysregulated. This pathway can alter the transcriptional signature of a cell to promote malignant transformation, growth and metastasis. However, thorough characterization of these transcriptomic signatures has been challenging because traditional methods lack either spatial information, multiplexing, or sensitivity/specificity. To overcome these challenges, we developed a novel workflow combining the single molecule and single cell visualization capabilities of the RNAscope in situ hybridization (ISH) assay with the highly multiplexed spatial profiling capabilities of the GeoMx™ Digital Spatial Profiler (DSP) RNA assays. Using these methods, we sought to spatially profile and compare gene expression signatures of tumor niches with high and low CTNNB1 expression. After screening 120 tumor cores from multiple tumors for CTNNB1 expression by the RNAscope assay, we identified melanoma as the tumor type with the highest CTNNB1 expression while prostate tumors had the lowest expression. Using the RNAscope Multiplex Fluorescence assay we selected regions of high CTNNB1 expression within 3 melanoma tumors as well as regions with low CTNNB1 expression within 3 prostate tumors. These selected regions of interest (ROIs) were then transcriptionally profiled using the GeoMx DSP RNA assay for a set of 78 genes relevant in cancer. Target genes that were differentially expressed were further visualized and spatially assessed using the RNAscope Multiplex Fluorescence assay to confirm GeoMx DSP data with single cell resolution. The GeoMx DSP analysis comparing the melanoma and prostate tumors revealed that they had significantly different gene expression profiles and many of these genes showed concordance with CTNNB1 expression. Furthermore, immunoregulatory targets such as ICOSLG, CTLA4, PDCD1 and ARG1, also demonstrated significant correlation with CTNNB1 expression. On validating selected targets using the RNAscope assay, we could distinctly visualize that they were not only highly expressed in melanoma compared to the prostate tumor, but their expression levels changed proportionally to that of CTNNB1 within the same tumors suggesting that these differentially expressed genes may be regulated by the WNT-β-catenin pathway. In summary, by combining the RNAscope ISH assay and the GeoMx DSP RNA assay into one joint workflow we transcriptionally profiled regions of high and low CTNNB1 expression within melanoma and prostate tumors and identified genes potentially regulated by the WNT- β-catenin pathway. This novel workflow can be fully automated and is well suited for interrogating the tumor and stroma and their interactions. GeoMx Assays are for RESEARCH ONLY, not for diagnostics.
Citation Format: Anushka Dikshit, Daniel Zollinger, Chris Merritt, Karen Nguyen, Jill McKay-Fleisch, Courtney Anderson, Xiao-Jun Ma. Molecularly guided highly multiplexed digital spatial analysis reveals differential gene expression profiles in the WNT-β-catenin pathway between melanoma and prostate tumors [abstract]. In: Proceedings of the Annual Meeting of the American Association for Cancer Research 2020; 2020 Apr 27-28 and Jun 22-24. Philadelphia (PA): AACR; Cancer Res 2020;80(16 Suppl):Abstract nr 2707.
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Dikshit A, Anderson C, Zhang B, Ma XJ. Abstract 3306: Conventional type 1 dendritic cells and natural killer cells demonstrate strong correlation to cytotoxic T lymphocyte infiltration in cervical cancer tumors. Cancer Res 2020. [DOI: 10.1158/1538-7445.am2020-3306] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
The ability of T cells to mediate anti-tumor immunity has been harnessed to develop some of the most successful immunotherapies in recent years. Although direct presentation of tumor antigens by tumor cells plays an important role in the effector function of cytotoxic T lymphocytes (CTLs), cross-presentation by professional antigen presenting cells such as dendritic cells (DCs) is vital for priming naive CD8+ T cells and developing a sustainable cytotoxic response. Natural killer (NK) cells within the tumor microenvironment (TME) recruit a specific population of DCs called conventional type 1 DCs (cDC1s) into the TME by secreting chemokines such as CCL5 and XCL1. However, these cells are very low in abundance and are characterized by the expression of numerous markers, making their detection in the tissue context challenging. Therefore, to interrogate the presence of cDC1 and NK cells in the TME and reveal their spatial relationship to each other we utilized the highly sensitive and specific RNAscope Multiplex Fluorescence in situ hybridization (ISH) assay. Probes for XCR1, THBD, CLEC9A, and CCR5 were used to identify cDC1 cells within 4 cervical cancer tumors. These tumors were then assessed for the presence of NK cells by using NK cell-specific marker probes such as CD56 and NCR1 as well as the chemokines XCL1 and CCL5. Finally, CTLs were visualized to determine if there is a correlation between the presence of cDC1 and NK cells and infiltration of CTLs within the cervical cancer tumors. Our results revealed a strong correlation between the presence of NK cells, cDC1 cells, and CTLs within 3 out of 4 cervical cancer samples. The NK cells showed expression of the chemokines XCL1 and CCL5, which are the ligands for XCR1 and CCR5 respectively, suggesting that the XCR1+/CCR5+ cDC1 cells may have been potentially recruited by these NK cells. Regions high in cDC1 and NK cells also showed significantly higher levels of CTL recruitment, as indicated by the presence of CD8+/IFNG+ T cells. Conversely, 1 of the 4 cervical cancer samples demonstrated relatively lower levels of NK cells which correlated with lower cDC1 cells and in turn lower CTL infiltration. In conclusion, by utilizing the RNAscope Multiplex ISH assay we were able to identify and visualize the spatial relationship between NK cells, CTLs, and cDC1 cells, a rare subset of DC cells that excel at presenting tumor antigens to T cells. Using this technology, it is possible to spatially interrogate the TME and detect specialized immune cells when assessing response to immunotherapies.
Citation Format: Anushka Dikshit, Courtney Anderson, Binqing Zhang, Xiao-Jun Ma. Conventional type 1 dendritic cells and natural killer cells demonstrate strong correlation to cytotoxic T lymphocyte infiltration in cervical cancer tumors [abstract]. In: Proceedings of the Annual Meeting of the American Association for Cancer Research 2020; 2020 Apr 27-28 and Jun 22-24. Philadelphia (PA): AACR; Cancer Res 2020;80(16 Suppl):Abstract nr 3306.
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Pishas KI, Christie EL, Beach JA, Alsop K, Freimund A, Vashistha N, Jhaveri N, Doolittle E, Wei W, Zhang B, Ma XJ, Bowtell DD. Abstract A65: Spatial characterization of drug resistance in ovarian cancer. Clin Cancer Res 2020. [DOI: 10.1158/1557-3265.ovca19-a65] [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
As we strive to prolong patient survival, the advent of targeted therapy for the treatment of ovarian cancer has significantly added to our armamentarium. Unfortunately, both chemotherapy and molecularly targeted PARPi approaches share the overarching limitation of the emergence of drug resistance. One key aspect towards realizing the potential of targeted therapies is a better understanding of the intrinsic and acquired resistance mechanisms that limit their efficacy. Through comprehensive genomic analysis of post-treatment patient samples, we recently identified the most common mechanism of acquired drug resistance in high-grade serous ovarian cancer (HGSC) to date, a transcriptional fusion involving ABCB1. ABCB1 encodes P-gp also known as multidrug resistance protein 1 (MDR1), a multi-transmembrane domain protein that is a member of the superfamily of ATP binding cassette (ABC) transporters involved in the cellular efflux of chemotherapeutic drugs. The SLC25A40-ABCB1 fusion was associated with upregulation of ABCB1 expression, whilst leaving the predicted ABCB1 protein unaltered. Interestingly, fusion events were only detected in patients who had been exposed to chemotherapies that are known substrates of P-gp, with the probability of fusion events closely correlated to the number of lines of P-gp substrate chemotherapy. Surprisingly, WGS analysis of patient samples revealed that not all tumor cells in fusion-positive patients carry the fusion. An intriguing possibility is that resistance within tumor sites is spatially ordered rather than random. Identifying such patterning could explain why tumor eradication has not been effective for the majority of HGSC patients to date. To address the subclonal localization and spatial patterning of ABCB1 fusions in HGSC, CASCADE (rapid autopsy program), biopsy specimens, and PDX tissue are being prescreened (qRT-PCR) to identify those with the highest levels of ABCB1 expression and thus most likely to harbor fusions. In situ DNA and RNA detection assays are being employed to identify ABCB1 fusions. To examine whether fusion negative cells also overexpress P-gp, IHC analysis will then be conducted to co-register fusion positivity and protein expression. We have successfully identified fusion events using ACD BaseScope technology and examined the localization of key HGSC genes including CCNE1 and ABCB1 through PCR FISH assays. In summary, this study will decipher the diversity of resistance mechanisms within individual HGSC patients, thereby providing critical information required for next-generation chemotherapy and PARPi clinical trials aimed at reversing or bypassing acquired resistance.
Citation Format: Kathleen I. Pishas, Elizabeth L. Christie, Jessica A. Beach, Kathryn Alsop, Alison Freimund, Nidhi Vashistha, Niyati Jhaveri, Emerald Doolittle, Wei Wei, Bingqing Zhang, Xiao-Jun Ma, David D.L. Bowtell. Spatial characterization of drug resistance in ovarian cancer [abstract]. In: Proceedings of the AACR Special Conference on Advances in Ovarian Cancer Research; 2019 Sep 13-16, 2019; Atlanta, GA. Philadelphia (PA): AACR; Clin Cancer Res 2020;26(13_Suppl):Abstract nr A65.
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Affiliation(s)
| | | | | | - Kathryn Alsop
- 1Peter MacCallum Cancer Centre, Melbourne, VIC, Australia,
| | | | | | | | | | - Wei Wei
- 2Advanced Cell Diagnostics, Newark, CA
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Wang LY, Zhao S, Lv GJ, Ma XJ, Zhang JB. Mechanisms of resveratrol in the prevention and treatment of gastrointestinal cancer. World J Clin Cases 2020; 8:2425-2437. [PMID: 32607320 PMCID: PMC7322414 DOI: 10.12998/wjcc.v8.i12.2425] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Revised: 05/20/2020] [Accepted: 05/23/2020] [Indexed: 02/05/2023] Open
Abstract
Gastrointestinal (GI) cancer is one of the leading causes of cancer-related deaths worldwide. According to the Global Cancer Statistics, colorectal cancer is the second leading cause of cancer-related mortality, closely followed by gastric cancer (GC). Environmental, dietary, and lifestyle factors including cigarette smoking, alcohol intake, and genetics are the most important risk factors for GI cancer. Furthermore, infections caused by Helicobacter pylori are a major cause of GC initiation. Despite improvements in conventional therapies, including surgery, chemotherapy, and radiotherapy, the length or quality of life of patients with advanced GI cancer is still poor because of delayed diagnosis, recurrence and side effect. Resveratrol (3, 4, 5-trihydroxy-trans-stilbene; Res), a natural polyphenolic compound, reportedly has various pharmacologic functions including anti-oxidant, anti-inflammatory, anti-cancer, and cardioprotective functions. Many studies have demonstrated that Res also exerts a chemopreventive effect on GI cancer. Research investigating the anti-cancer mechanism of Res for the prevention and treatment of GI cancer has implicated multiple pathways including oxidative stress, cell proliferation, and apoptosis. Therefore, this paper provides a review of the function and molecular mechanisms of Res in the prevention and treatment of GI cancer.
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Affiliation(s)
- Li-Yan Wang
- Department of Pharmacy, the First Affiliated Hospital of Dalian Medical University, Dalian 116011, Liaoning Province, China
| | - Shan Zhao
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning Province, China
| | - Guo-Jun Lv
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning Province, China
| | - Xiao-Jun Ma
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning Province, China
| | - Jian-Bin Zhang
- College of Pharmacy, Dalian Medical University, Dalian 116044, Liaoning Province, China
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Ren GF, Xiao LL, Ma XJ, Yan YS, Jiao PF. Metformin Decreases Insulin Resistance in Type 1 Diabetes Through Regulating p53 and RAP2A in vitro and in vivo. Drug Des Devel Ther 2020; 14:2381-2392. [PMID: 32606605 PMCID: PMC7306576 DOI: 10.2147/dddt.s249557] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Accepted: 05/07/2020] [Indexed: 01/06/2023]
Abstract
Purpose Patients with type 1 diabetes (T1D) are associated with a high risk of multiple complications, so the development of T1D treatment is urgently needed. This study was set out to explore the molecular mechanism of metformin in the treatment of T1D insulin resistance. Patients and Methods Subcutaneous adipose tissues were collected from 68 T1D patients and 51 healthy controls. Insulin resistance model rats and cells were constructed and treated with metformin respectively. Western blot was used to detect p53 and RAP2A protein levels, and qPCR was utilized to measure p53 and RAP2A mRNA levels. SiRNA and RAP2A siRNA vectors were constructed to observe their effects on insulin resistance model cells. Results In T1D, p53 was up-regulated, while RAP2A was down-regulated. Metformin could effectively improve insulin resistance and inflammatory response while down-regulating p53 and up-regulating RAP2A. P53 induced insulin resistance and inflammatory response by inhibiting RAP2A and promoted apoptosis. Conclusion Metformin improves T1D insulin resistance and inflammatory response through p53/RAP2A pathway, and the regulation of p53/RAP2A pathway is conducive to improving the efficacy of metformin in the treatment of insulin resistance.
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Affiliation(s)
- Gao-Fei Ren
- Department of Endocrinology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan Province, People's Republic of China
| | - Li-Li Xiao
- Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan Province, People's Republic of China
| | - Xiao-Jun Ma
- Department of Endocrinology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan Province, People's Republic of China
| | - Yu-Shan Yan
- Department of Endocrinology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan Province, People's Republic of China
| | - Peng-Fei Jiao
- Department of Respiratory, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan Province, People's Republic of China
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Zhang LX, Mou Y, Yang MH, Yu J, Tang DY, Guo F, Gu Z, Luo ZL, Ma XJ. [Application and safety evaluation of plant growth regulators in traditional Chinese medicine]. Zhongguo Zhong Yao Za Zhi 2020; 45:1824-1832. [PMID: 32489066 DOI: 10.19540/j.cnki.cjcmm.20200205.105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Plant growth regulator is a kind of synthetic pesticide with similar physiological activity to plant hormones. It has been widely used in grain, vegetables, fruits, flowers and other crops, and become an important technical guarantee for high yield, stable yield, high quality and efficient production of crops. In recent years, plant growth regulator is widely used in Chinese herbal medicine production for regulating the growth and development and increasing production of traditional. However the crop is different from general Chinese medicinal materials, the use of plant growth regulator should not only consider the effect of Chinese herbal medicine production, and also pay special attention to the influence of Chinese traditional medicine efficacy and safety. This paper reviewed the application of plant growth regulator in the traditional Chinese medicine, the impact on the quality and safety of Chinese medicinal materials, as well as plant growth regulator of residue limits standards and testing technology, so as to the scientific use of plant growth regulator, to promote Chinese standardization planting, provide the scientific basis to protect the safety of herbal medicine. At present, the indiscriminate use and abuse of plant growth regulators such as Zhuanggenling and bulking element are common in the production of Chinese crude drugs, which has led to a significant decline in the quality of some Chinese crude drugs, and resulted in the dual residual harm to the Chinese crude drugs and the cultivation environment, causing serious safety risks to human health. In the future, it is necessary to strengthen the registration management, use norms and limit standards of plant growth regulators in traditional Chinese medicinal materials, and strengthen the supervision and regulations on the use of fertilizer instead of medicine to avoid pesticide registration and other disorders, so as to provide a basis for the quality and safety monitoring of traditional Chinese medicinal materials. Simultaneously, it is encouraged to reduction or non-application of plant growth regulators in the production of Chinese medicinal materials, especially for traditional Chinese medicine which contains a variety of active ingredients. Therefore, it is actively advocated to cultivate Chinese medicinal materials through organic or ecological method.
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Affiliation(s)
- Li-Xia Zhang
- Key Laboratory of Dai and Southern Medicine in Xishuangbanna, Yunnan Branch Institute of Medicinal Plant Development,Chinese Academy of Medical Sciences Jinghong 666100, China Institute of Medicinal Plant Development,Chinese Academy of Medical Sciences, Peking Union Medical College Beijing 100193, China
| | - Yan Mou
- Key Laboratory of Dai and Southern Medicine in Xishuangbanna, Yunnan Branch Institute of Medicinal Plant Development,Chinese Academy of Medical Sciences Jinghong 666100, China
| | - Mei-Hua Yang
- Institute of Medicinal Plant Development,Chinese Academy of Medical Sciences, Peking Union Medical College Beijing 100193, China
| | - Jing Yu
- Key Laboratory of Dai and Southern Medicine in Xishuangbanna, Yunnan Branch Institute of Medicinal Plant Development,Chinese Academy of Medical Sciences Jinghong 666100, China
| | - De-Ying Tang
- Key Laboratory of Dai and Southern Medicine in Xishuangbanna, Yunnan Branch Institute of Medicinal Plant Development,Chinese Academy of Medical Sciences Jinghong 666100, China
| | - Fang Guo
- Institute of Medicinal Plant Development,Chinese Academy of Medical Sciences, Peking Union Medical College Beijing 100193, China
| | - Zhe Gu
- Institute of Medicinal Plant Development,Chinese Academy of Medical Sciences, Peking Union Medical College Beijing 100193, China
| | - Zu-Liang Luo
- Institute of Medicinal Plant Development,Chinese Academy of Medical Sciences, Peking Union Medical College Beijing 100193, China
| | - Xiao-Jun Ma
- Institute of Medicinal Plant Development,Chinese Academy of Medical Sciences, Peking Union Medical College Beijing 100193, China
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Li DM, Wang WM, Luo H, Ma XJ, Huang SB, Qu ZA. [Isolated biceps tenodesis by double row for pulley lesions]. Zhonghua Yi Xue Za Zhi 2020; 100:1648-1653. [PMID: 32486600 DOI: 10.3760/cma.j.cn112137-20191106-02411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore clinical outcome of isolated arthroscopic biceps tenodesis by double row for pulley lesions. Methods: Forty-nine patients with pulley lesions were treated from July 2017 to June 2018 in the Department of Sport Medicine, the Affiliated Zhongshan Hospital of Dalian University by isolated arthroscopic biceps tenodesis by double row. Patients were divided into 2 groups according to the intraoperative damage of the pulley system. In group A, there were 16 patients with isolated superior glenohumeral ligament/coracohumeral ligament (SGHL/CHL) complex lesions, including 9 males and 7 females, aged (55±6) years. In group B, there were 33 patients (15 males and 18 females, aged (57±8) years) with SGHL/CHL complex and adjacent supraspinatus tendon and/or subscapularis tendon articular-side partly tears. Patients in two groups were treated with different isolated arthroscopic biceps tenodesis by double row. Constant-Murley shoulder score and pain visual analogue scale (VAS) score were assessed before operation and 3, 6, 12 months after the operation. Postoperative complications were also recorded in two groups. The t test was used to compare the quantitative data within and between two groups. Results: All 49 patients were followed up for 12 to 24 months with an average of (17±6) months. The first-stage healing was achieved in all incisions in the two groups. No surgical complications related to revision, infection, Popeye syndrome and cramping pain were observed in either group. There was 1 case treated by secondary arthroscopy for retrauma in group B. The Constant-Murley shoulder score in group A before the operation was 46±10, and it was increased to 89±9 at the 12 months post operation(t=-22.637, P<0.05); and it was 39±10 and 87±8 before and 12 months after the operation respectively in group B (t=-44.849, P<0.05). The VAS scores in the two groups were both decreased significantly at the 12 months post operation when compared with those before the operation (0.68±0.70 vs 5.25±0.27 and 0.72±0.83 vs 5.69±0.84, respectively) (t=29.007, 37.079, both P<0.05). Conclusion: Isolated arthroscopic biceps tenodesis by double row can relieve pain, recover functions of shoulder joint effectively, and achieve a satisfactory outcome in the treatment of pulley lesions.
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Affiliation(s)
- D M Li
- Department of Sport Medicine, the Affiliated Zhongshan Hospital of Dalian University, Dalian 116001, China
| | - W M Wang
- Department of Sport Medicine, the Affiliated Zhongshan Hospital of Dalian University, Dalian 116001, China(Wang Weiming is working in the Affiliated Xinhua Hospital of Dalian University)
| | - H Luo
- Graduate School of Dalian Medical University, Dalian 116044, China
| | - X J Ma
- Department of Sport Medicine, the Affiliated Zhongshan Hospital of Dalian University, Dalian 116001, China
| | - S B Huang
- Department of Sport Medicine, the Affiliated Zhongshan Hospital of Dalian University, Dalian 116001, China
| | - Z A Qu
- Department of Sport Medicine, the Affiliated Zhongshan Hospital of Dalian University, Dalian 116001, China
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Dikshit A, Anderson CM, Zhang B, Ma XJ. Conventional type 1 dendritic cells and natural killer cells demonstrate strong correlation to cytotoxic T lymphocyte infiltration in cervical cancer tumors. The Journal of Immunology 2020. [DOI: 10.4049/jimmunol.204.supp.243.11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Abstract
Professional antigen presenting cells such as dendritic cells (DCs) are vital for priming naive CD8+ T cells and developing a sustainable anti-tumor immune response. Natural killer (NK) cells within the tumor microenvironment (TME) recruit a specific population of DCs called conventional type 1 DCs (cDC1s). However, these cells are low in abundance making their detection in the tissue context challenging.
To interrogate the presence of cDC1 and NK cells in the TME and reveal their spatial relationship to each other we utilized the highly sensitive and specific RNAscope Multiplex Fluorescence in situ hybridization (ISH) assay. NK cells and cDC1 cells were identified by using cell specific marker probes in 4 cervical cancer samples. Similarly, CTLs were visualized to determine if there is a correlation between the presence of cDC1 and NK cells and infiltration of CTLs within the cervical cancer tumors.
Our results revealed a strong correlation between the presence of NK cells, cDC1 cells, and CTLs within 3 out of 4 cervical cancer samples. The NK cells showed expression of the chemokines XCL1 and CCL5, suggesting that the XCR1+/CCR5+ cDC1 cells may have been potentially recruited by these NK cells in the TME. Regions high in cDC1 and NK cells also showed significantly higher levels of CTL recruitment, indicated by the presence of CD8+/IFNG+ T cells. Conversely, 1 of the 4 cervical cancer samples demonstrated relatively lower levels of NK cells which correlated with lower cDC1 cells and in turn lower CTL infiltration.
In conclusion, by utilizing the RNAscope Multiplex ISH assay we identified and visualized the spatial relationship between NK cells, CTLs, and cDC1 cells, highlighting the strength of this technology to spatially interrogate the TME.
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Affiliation(s)
| | | | | | - Xiao-Jun Ma
- 1Advanced Cell Diagnostics, a Bio-Techne brand
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Anderson CM, Li NM, Todorov C, Dikshit A, Ma XJ. Dissecting the cellular responses of immune cells and Lgr5+ stem cells in the inflamed mouse colon with the RNAscope in situ hybridization technology. The Journal of Immunology 2020. [DOI: 10.4049/jimmunol.204.supp.158.17] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Abstract
Due to its exposure to a harsh luminal environment, the intestinal epithelium has a remarkably fast turnover rate that is facilitated by a resident intestinal stem cell (ISC) population present at the base of the intestinal crypt. These ISCs, marked by the GPCR Lgr5, allow the intestinal epithelium to adapt to different types of damage, such as inflammation. Chronic intestinal inflammation is a hallmark of the inflammatory bowel diseases (IBD) yet the interplay between inflammatory immune cells and ISCs remains to be elucidated. Therefore, we utilized the single-molecule RNA in situ hybridization (ISH) technology RNAscope to visualize the expression of multiple immune and ISC markers within the inflamed intestinal tissue environment. To interrogate the expression pattern of inflammatory immune cell and ISC markers within the intestinal crypt, we performed the assay on colons from either control or TNBS-treated mice. We visualized the location of each intestinal cell population, including the resident Lgr5+ ISC population, within the crypt. The impact of inflammation on the Lgr5+ ISC population, as well as the Wnt/β-catenin pathway, was also examined. Using a multiplex assay, we assessed infiltration of regulatory T cells and Th17 cells in the inflamed region. Lastly, we examined the expression of several receptor-ligand pairs for cytokines and ISC markers. Taken together, these results demonstrate the ability of the RNAscope assay to visualize the ISCs within the morphological context of the intestinal crypt and in relationship to inflammatory immune cells. This work may help understand mechanisms behind the pathogenesis of IBD and other inflammatory diseases and also aid in the development of potential therapies.
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Affiliation(s)
| | - Na M Li
- 1Advanced Cell Diagnostics, a Bio-Techne brand
| | | | | | - Xiao-Jun Ma
- 1Advanced Cell Diagnostics, a Bio-Techne brand
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Ma XJ, Yu TF, Li XH, Cao XY, Ma J, Chen J, Zhou YB, Chen M, Ma YZ, Zhang JH, Xu ZS. Overexpression of GmNFYA5 confers drought tolerance to transgenic Arabidopsis and soybean plants. BMC Plant Biol 2020; 20:123. [PMID: 32192425 PMCID: PMC7082914 DOI: 10.1186/s12870-020-02337-z] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Accepted: 03/10/2020] [Indexed: 05/27/2023]
Abstract
BACKGROUND Crop productivity is challenged by abiotic stresses, among which drought stress is the most common. NF-Y genes, especially NF-YA genes, regulate tolerance to abiotic stress. RESULTS Soybean NF-Y gene GmNFYA5 was identified to have the highest transcript level among all 21 NF-YA genes in soybean (Glycine max L.) under drought stress. Drought-induced transcript of GmNFYA5 was suppressed by the ABA synthesis inhibitor naproxen (NAP). GmNFYA5 transcript was detected in various tissues at vegetative and reproductive growth stages with higher levels in roots and leaves than in other tissues, which was consist with the GmNFYA5 promoter: GUS fusion assay. Overexpression of GmNFYA5 in transgenic Arabidopsis plants caused enhanced drought tolerance in seedlings by decreasing stomatal aperture and water loss from leaves. Overexpression and suppression of GmNFYA5 in soybean resulted in increased and decreased drought tolerance, respectively, relative to plants with an empty vector (EV). Transcript levels of ABA-dependent genes (ABI2, ABI3, NCED3, LEA3, RD29A, P5CS1, GmWRKY46, GmNCED2 and GmbZIP1) and ABA-independent genes (DREB1A, DREB2A, DREB2B, GmDREB1, GmDREB2 and GmDREB3) in transgenic plants overexpressing GmNFYA5 were higher than those of wild-type plants under drought stress; suppression of GmNFYA5 transcript produced opposite results. GmNFYA5 probably regulated the transcript abundance of GmDREB2 and GmbZIP1 by binding to the promoters in vivo. CONCLUSIONS Our results suggested that overexpression of GmNFYA5 improved drought tolerance in soybean via both ABA-dependent and ABA-independent pathways.
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Affiliation(s)
- Xiao-Jun Ma
- College of Agronomy, Northeast Agricultural University, Harbin, 150030 China
- Institute of Crop Science, Chinese Academy of Agricultural Sciences (CAAS)/National Key Facility for Crop Gene Resources and Genetic Improvement, Key Laboratory of Biology and Genetic Improvement of Triticeae Crops, Ministry of Agriculture, Beijing, 100081 China
| | - Tai-Fei Yu
- Institute of Crop Science, Chinese Academy of Agricultural Sciences (CAAS)/National Key Facility for Crop Gene Resources and Genetic Improvement, Key Laboratory of Biology and Genetic Improvement of Triticeae Crops, Ministry of Agriculture, Beijing, 100081 China
| | - Xiao-Hui Li
- Crop Germplasm Resources Institute, Jilin Academy of Agricultural Sciences, Gongzhuling, 136100 China
| | - Xin-You Cao
- Crop Research Institute, Shandong Academy of Agricultural Sciences, National Engineering Laboratory for Wheat and Maize, Key Laboratory of Wheat Biology and Genetic Improvement, Jinan, 250100 China
| | - Jian Ma
- College of Agronomy, Jilin Agricultural University, Changchun, 130118 China
| | - Jun Chen
- Institute of Crop Science, Chinese Academy of Agricultural Sciences (CAAS)/National Key Facility for Crop Gene Resources and Genetic Improvement, Key Laboratory of Biology and Genetic Improvement of Triticeae Crops, Ministry of Agriculture, Beijing, 100081 China
| | - Yong-Bin Zhou
- Institute of Crop Science, Chinese Academy of Agricultural Sciences (CAAS)/National Key Facility for Crop Gene Resources and Genetic Improvement, Key Laboratory of Biology and Genetic Improvement of Triticeae Crops, Ministry of Agriculture, Beijing, 100081 China
| | - Ming Chen
- Institute of Crop Science, Chinese Academy of Agricultural Sciences (CAAS)/National Key Facility for Crop Gene Resources and Genetic Improvement, Key Laboratory of Biology and Genetic Improvement of Triticeae Crops, Ministry of Agriculture, Beijing, 100081 China
| | - You-Zhi Ma
- Institute of Crop Science, Chinese Academy of Agricultural Sciences (CAAS)/National Key Facility for Crop Gene Resources and Genetic Improvement, Key Laboratory of Biology and Genetic Improvement of Triticeae Crops, Ministry of Agriculture, Beijing, 100081 China
| | - Jun-Hua Zhang
- College of Agronomy, Northeast Agricultural University, Harbin, 150030 China
| | - Zhao-Shi Xu
- Institute of Crop Science, Chinese Academy of Agricultural Sciences (CAAS)/National Key Facility for Crop Gene Resources and Genetic Improvement, Key Laboratory of Biology and Genetic Improvement of Triticeae Crops, Ministry of Agriculture, Beijing, 100081 China
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Wang YS, Ma XJ, Bao YQ. [Neck circumference and atherosclerosis]. Zhonghua Nei Ke Za Zhi 2019; 58:858-860. [PMID: 31665869 DOI: 10.3760/cma.j.issn.0578-1426.2019.11.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Y S Wang
- Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Clinical Center for Diabetes, Shanghai Diabetes Institute, Shanghai 200233, China
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Shang LL, Su Z, Ma XJ, Wang YQ, Wang Y, Wang QX, Yang P. [Role of PI3K/Akt signaling pathway in ischemic rats underwent cardiac shock waves therapy]. Zhonghua Xin Xue Guan Bing Za Zhi 2019; 47:457-464. [PMID: 31262130 DOI: 10.3760/cma.j.issn.0253-3758.2019.06.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the role of PI3K/Akt signaling pathway in ischemic rats underwent cardiac shock therapy. Methods: Adult male Sprague Dawley (SD) rats weighing 220-250 g were used to establish a heart failure model by ligation of the left anterior descending coronary artery. Rat models were defined by echocardiographic assessment at 4 weeks post operation and heart failure rats were randomly divided into 4 groups,namely heart failure group (HF group, 9 cases),heart failure+cardiac shock waves therapy group (HF+CSWT group, 9 cases),heart failure+inhibitor(HF+LY294002 group, 9 cases),heart failure+cardiac shock waves therapy group+inhibitor (HF+CSWT+LY294002 group, 9 cases),and another 9 sham-operated SD rats served as control group (sham group, 9 cases). At 8 weeks postoperation, echocardiography was used to evaluate cardiac function in each group,myocardial infarct size was measured by TTC staining,the apoptotic index of rats cardiomyocytes were detected by TUNEL method,the myocardial mRNA expression of apoptosis-related factor was detected by real-time quantitative PCR, the protein expression levels of PI3K/Akt signaling pathway and apoptosis-related pathways were detected by Western blot. Results: (1) Eight weeks after operation, left ventricular end diastolic diameter (LVEDD) and left ventricular end systolic diameter (LVESD) were significantly lower in HF+CSWT group than in HF group (all P<0.05), left ventricular ejection fraction (LVEF) and left ventricular shortening rate (LVFS) were significantly higher in HF+CSWT group than in HF group (all P<0.05),LVEF was significantly lower in the HF+ CSWT+ LY294002 group than in HF+ CSWT group (P<0.05). (2) Myocardial infarct size was significantly lower in the HF+ CSWT group than in HF group ((5.57 ± 0.51)% vs. (25.56 ± 0.56)%, P<0.05), which was significantly higher in the HF+CSWT+LY294002 group than in HF+CSWT group ((12.90±2.34)% vs. (5.57±0.51)%,P<0.05). (3) The cardiomyocyte apoptotic index was significantly lower in the HF+CSWT group than in the HF group ((30.25±6.12)% vs. (53.85±9.89)%,P<0.05), which was significantly higher in the HF+CSWT+LY294002 group than in the HF+CSWT group ((46.12±3.42)% vs.(30.25±6.12)%,P<0.05). (4) The myocardial mRNA expression of Bcl-2 was significantly higher, while myocardial mRNA Bax and Caspase-3 expression were significantly lower in HF+CSWT group than in HF group and HF+CSWT+LY294002 group (all P<0.05). (5) The expression levels of p-Akt, Bcl-2 and pro-Caspase-3 in myocardial tissue were significantly higher in the HF+CSWT group than in the HF group and HF+CSWT+LY294002 group (all P<0.05), which were significantly lower in the HF+LY294002 group than in the HF and HF+CSWT+LY294002 groups (all P<0.05). Myocardial Bax protein expression was significantly lower in the HF+CSWT group than in the HF group and the HF+CSWT+LY294002 group (all P<0.05), which was significantly higher in the HF+LY294002 group than in the HF group (P<0.05). Conclusion: CSWT improves cardiac function and inhibits cardiomyocyte apoptosis through PI3K/Akt signaling pathways in this rat HF model.
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Affiliation(s)
- L L Shang
- Department of Cardiology, First Affiliated Hospital of Kunming Medical University, Kunming 650032, China
| | - Z Su
- Department of Cardiology, First Affiliated Hospital of Kunming Medical University, Kunming 650032, China
| | - X J Ma
- Department of Cardiology, First Affiliated Hospital of Kunming Medical University, Kunming 650032, China
| | - Y Q Wang
- Department of Anesthesiology, First Affiliated Hospital of Kunming Medical University, Kunming 650032, China
| | - Y Wang
- Department of Cardiology, First Affiliated Hospital of Kunming Medical University, Kunming 650032, China
| | - Q X Wang
- Department of Cardiology, First Affiliated Hospital of Kunming Medical University, Kunming 650032, China
| | - P Yang
- Department of Cardiology, First Affiliated Hospital of Kunming Medical University, Kunming 650032, China
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