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Jin YY, Wu J, Ding F, Huang H, Xu XM, Chen QM, Yin MZ, Zhong YM, Jin YL. Abnormal T Cells Function Associated With Intraspinal Cold Abscess Caused by Macrolide-resistant Mycoplasma pneumoniae in a Patient With X-linked Agammaglobulinemia. Pediatr Infect Dis J 2024:00006454-990000000-01027. [PMID: 39348496 DOI: 10.1097/inf.0000000000004569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/02/2024]
Abstract
Intraspinal cold abscesses caused by macrolide-resistant Mycoplasma pneumoniae in patients with X-linked agammaglobulinemia have not yet been described to our knowledge. Here we describe a patient with X-linked agammaglobulinemia who developed an intraspinal cold abscess caused by macrolide-resistant M. pneumoniae . Genetic analysis revealed a hemizygous c.1566 + 1G > C (IVS15 + 1G > C) mutation in BTK gene. The patient showed relatively naive T cells and a significant proliferative defect.
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Affiliation(s)
- Ying-Ying Jin
- From the Department of Rheumatology/Immunology
- Department of Allergy/Immunology Innovation Team
| | - Jing Wu
- Department of Allergy/Immunology Innovation Team
- Department of Institute of Pediatric Translational Medicine
| | - Fei Ding
- From the Department of Rheumatology/Immunology
| | - Hua Huang
- From the Department of Rheumatology/Immunology
| | - Xue-Mei Xu
- From the Department of Rheumatology/Immunology
| | | | | | - Yu-Min Zhong
- Department of Radiology, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Jiang Y, Dou H, Xu B, Xu B, Zhou W, Wang H, Ge L, Hu Y, Han X, Qin X, Li J, Ye L, Wu L, Zuo H, Zhang Q, Liu L, Hu W, Shao J, Yin Q, Han L, Fu X, Dong X, Dong Y, Fu Y, Zhao M, Sun Q, Huo J, Liu D, Liu W, Li Y, Wang Y, Xin D, Shen K. Macrolide resistance of Mycoplasma pneumoniae in several regions of China from 2013 to 2019. Epidemiol Infect 2024; 152:e75. [PMID: 38634450 PMCID: PMC11094376 DOI: 10.1017/s0950268824000323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 12/07/2023] [Accepted: 01/02/2024] [Indexed: 04/19/2024] Open
Abstract
This paper retrospectively analysed the prevalence of macrolide-resistant Mycoplasma pneumoniae (MRMP) in some parts of China. Between January 2013 and December 2019, we collected 4,145 respiratory samples, including pharyngeal swabs and alveolar lavage fluid. The highest PCR-positive rate of M. pneumoniae was 74.5% in Beijing, the highest resistance rate was 100% in Shanghai, and Gansu was the lowest with 20%. The highest PCR-positive rate of M. pneumoniae was 74.5% in 2013, and the highest MRMP was 97.4% in 2019; the PCR-positive rate of M. pneumoniae for adults in Beijing was 17.9% and the MRMP was 10.48%. Among the children diagnosed with community-acquired pneumonia (CAP), the PCR-positive and macrolide-resistant rates of M. pneumoniae were both higher in the severe ones. A2063G in domain V of 23S rRNA was the major macrolide-resistant mutation, accounting for more than 90%. The MIC values of all MRMP to erythromycin and azithromycin were ≥ 64 μg/ml, and the MICs of tetracycline and levofloxacin were ≤ 0.5 μg/ml and ≤ 1 μg/ml, respectively. The macrolide resistance varied in different regions and years. Among inpatients, the macrolide-resistant rate was higher in severe pneumonia. A2063G was the common mutation, and we found no resistance to tetracycline and levofloxacin.
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Affiliation(s)
- Yue Jiang
- Beijing Chaoyang Hospital,Capital Medical University, Beijing, China
| | - Haiwei Dou
- Tropical Medicine Research Institute, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Bo Xu
- Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Baoping Xu
- Beijing Children’s Hospital, Capital Medical University, China National Clinical Research Center of Respiratory Diseases, National Center for Children’s Health, Beijing, China
| | - Wei Zhou
- Peking University Third Hospital, Beijing, China
| | - Hong Wang
- Civil Aviation General Hospital, Beijing, China
| | - Lixia Ge
- China Meitan General Hospital, Beijing, China
| | - Yinghui Hu
- New Century International hospital for Children, Beijing, China
| | - Xiaohua Han
- Shengjing Hospital of China Medical University, Shenyang, China
| | - Xuanguang Qin
- Beijing Chaoyang Hospital,Capital Medical University, Beijing, China
| | - Jing Li
- Beijing Changping District Integrated Traditional Chinese and Western Medicine Hospital, Beijing, China
| | - Leping Ye
- Peking University First Hospital, Beijing, China
| | - Liqun Wu
- Dongfang Affiliated Hospital of Beijing University of Chinese Medicine, Beijing, China
| | - Huimin Zuo
- The First Hospital of Tsinghua University, Beijing, China
| | - Qi Zhang
- China-Japan Friendship Hospital, Beijing, China
| | - Ling Liu
- Peking University Third Hospital, Beijing, China
| | - Wenjuan Hu
- Civil Aviation General Hospital, Beijing, China
| | - Junyan Shao
- China Meitan General Hospital, Beijing, China
| | - Qiaomian Yin
- New Century International hospital for Children, Beijing, China
| | - Lina Han
- Shengjing Hospital of China Medical University, Shenyang, China
| | - Xiaoyan Fu
- Beijing Chaoyang Hospital,Capital Medical University, Beijing, China
| | - Xiaopei Dong
- Beijing Chaoyang Hospital,Capital Medical University, Beijing, China
| | - Yan Dong
- Beijing Changping District Integrated Traditional Chinese and Western Medicine Hospital, Beijing, China
| | - Yulin Fu
- Beijing Changping District Integrated Traditional Chinese and Western Medicine Hospital, Beijing, China
| | | | - Qing Sun
- Peking University First Hospital, Beijing, China
| | - Jingwei Huo
- Dongfang Affiliated Hospital of Beijing University of Chinese Medicine, Beijing, China
| | - Die Liu
- China-Japan Friendship Hospital, Beijing, China
| | - Wenkao Liu
- Beijing Changping District Integrated Traditional Chinese and Western Medicine Hospital, Beijing, China
| | - Yunjuan Li
- New Century International hospital for Children, Beijing, China
| | - Yang Wang
- New Century International hospital for Children, Beijing, China
| | - Deli Xin
- Tropical Medicine Research Institute, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Kunling Shen
- Beijing Children’s Hospital, Capital Medical University, China National Clinical Research Center of Respiratory Diseases, National Center for Children’s Health, Beijing, China
- Shenzhen Children′s Hospital, Shenzhen, Guangdong Province, China
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Liu L, Xiang C, Zhang Y, He L, Meng F, Gong J, Liu J, Zhao F. A Novel Detection Procedure for Mutations in the 23S rRNA Gene of Macrolide-Resistant Mycoplasma pneumoniae with Two Non-Overlapping Probes Amplification Assay. Microorganisms 2023; 12:62. [PMID: 38257888 PMCID: PMC10820694 DOI: 10.3390/microorganisms12010062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 12/22/2023] [Accepted: 12/26/2023] [Indexed: 01/24/2024] Open
Abstract
Mycoplasma pneumoniae is a significant cause of community-acquired pneumonia, which is often empirically treated with macrolides (MLs), but, presently, resistance to MLs has been a matter of close clinical concern. This assay is intended to contribute to resistance detection of M. pneumoniae in clinical practice. A novel real-time PCR assay with two non-overlapping probes on the same nucleic acid strand was designed in this study. It could effectively detect all mutation types of M. pneumoniae in 23S rRNA at loci 2063 and 2064. The results were determined by the following methods: ΔCT < 0.5 for MLs-sensitive M. pneumoniae; ΔCT > 2.0 for MLs-resistant M. pneumoniae; 10 copies as a limit of detection for all types. For detection of M. pneumoniae in 92 clinical specimens, the consistency between the results of this assay and the frequently used real-time PCR results was 95.65%. The consistency of MLs resistance results between PCR sequencing and this assay was 100% in all 43 specimens. The assay could not only cover a comprehensive range of targets and have high detection sensitivity but is also directly used for detection and MLs analysis of M. pneumoniae in specimens.
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Affiliation(s)
- Liyong Liu
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China; (L.L.); (C.X.); (Y.Z.); (L.H.); (F.M.); (J.G.); (J.L.)
| | - Caixin Xiang
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China; (L.L.); (C.X.); (Y.Z.); (L.H.); (F.M.); (J.G.); (J.L.)
- School of Public Health, China Medical University, Shenyang 110122, China
| | - Yiwei Zhang
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China; (L.L.); (C.X.); (Y.Z.); (L.H.); (F.M.); (J.G.); (J.L.)
| | - Lihua He
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China; (L.L.); (C.X.); (Y.Z.); (L.H.); (F.M.); (J.G.); (J.L.)
| | - Fanliang Meng
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China; (L.L.); (C.X.); (Y.Z.); (L.H.); (F.M.); (J.G.); (J.L.)
| | - Jie Gong
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China; (L.L.); (C.X.); (Y.Z.); (L.H.); (F.M.); (J.G.); (J.L.)
| | - Jie Liu
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China; (L.L.); (C.X.); (Y.Z.); (L.H.); (F.M.); (J.G.); (J.L.)
- School of Public Health, China Medical University, Shenyang 110122, China
| | - Fei Zhao
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China; (L.L.); (C.X.); (Y.Z.); (L.H.); (F.M.); (J.G.); (J.L.)
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Wang H, Liu R, Dong K, Zhang L, Zhang J, Zhang X, Zhang J, Xiao X, Zhang W, Wang X. A universal and sensitive gene mutation detection method based on CRISPR-Cas12a. Anal Chim Acta 2023; 1246:340886. [PMID: 36764772 DOI: 10.1016/j.aca.2023.340886] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Accepted: 01/22/2023] [Indexed: 01/25/2023]
Abstract
Single nucleotide mutations are highly related to the occurrence and development of cancer. The development of simple single nucleotide mutation detection methods with high sensitivity and specificity has great clinical significance for the prevention, diagnosis, treatment and prognosis evaluation of cancer. In recent years, CRISPR/Cas12a has been developed as a highly sensitive, simple and fast tool for nucleic acid detection. However, the specificity and universality of current detection methods based on it are still insufficient, so their clinical applications are limited. Herein, we developed a simple and rapid single nucleotide mutation detection method based on CRISPR/Cas12a system. This method not only solves the problem of PAM sequence restriction of CRISPR/Cas12a, but also significantly improves the specificity of CRISPR/Cas12a for single nucleotide mutation and greatly improves the sensitivity. We detected three clinically significant mutations, PTEN R130Q, BRAF V600E, and TP53 R248W, with a detection limit of 0.1%. Finally, we further verified the clinical practicability of this method. We selected TP53 R248W mutation site for testing. The accuracy of testing results for 10 clinical samples was as high as 100%. In conclusion, the detection method of specific PCR combined with CRISPR/Cas12a is simple, rapid, universal and highly sensitive. We believe that this method has promising application prospects in clinical diagnosis of cancer.
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Affiliation(s)
- Huajing Wang
- Department of Breast Surgery, Second Hospital of Jilin University, No.218 Ziqiang Street, Nanguan District, Changchun, 130041, China; Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Ruijie Liu
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Kejun Dong
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Lei Zhang
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Jingxi Zhang
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Xiaoping Zhang
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Jiarui Zhang
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Xianjin Xiao
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China; NHC Key Lab of Reproduction Regulation (Shanghai Institute for Biomedical and Pharmaceutical Technologies), Fudan University, Shanghai, 200032, China
| | - Wei Zhang
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
| | - Xinyu Wang
- Department of Breast Surgery, Second Hospital of Jilin University, No.218 Ziqiang Street, Nanguan District, Changchun, 130041, China.
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Zhang Z, Dou H, Tu P, Shi D, Wei R, Wan R, Jia C, Ning L, Wang D, Li J, Dong Y, Xin D, Xu B. Serum cytokine profiling reveals different immune response patterns during general and severe Mycoplasma pneumoniae pneumonia. Front Immunol 2022; 13:1088725. [PMID: 36618370 PMCID: PMC9813340 DOI: 10.3389/fimmu.2022.1088725] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Accepted: 12/05/2022] [Indexed: 12/24/2022] Open
Abstract
Mycoplasma pneumoniae (MP) is an important human pathogen that mainly affects children causing general and severe Mycoplasma pneumoniae pneumonia (G/SMPP). In the present study, a comprehensive immune response data (33 cytokines) was obtained in school-age children (3-9 years old) during MPP, aiming to analyze the immune response patterns during MPP. At acute phase, changes of cytokines were both detected in GMPP (24/33) and SMPP (23/33) groups compared to the healthy group (p < 0.05), with 20 identical cytokines. Between MPP groups, the levels of 13 cytokines (IL-2, IL-10, IL-11, IL-12, IL-20, IL-28A, IL-32, IL-35, IFN-α2, IFN-γ, IFN-β, BAFF, and TSLP) were higher and three cytokines (LIGHT, OPN and CHI3L1) were lower in the SMPP group than in the GMPP group (p < 0.05). Function analysis reveals that macrophage function (sCD163, CHI3L1) are not activated in both MPP groups; difference in regulatory patterns of T cells (IL26, IL27, OPN, LIGHT) and defective activation of B cells (BAFF) were detected in the SMPP group compared to the GMPP group. Besides, the level of osteocalcin; sIL-6Rβ and MMP-2 are both decreased in MPP groups at acute and convalescent phases compared to the healthy group, among which the levels of sIL-6Rβ and MMP-2 showed negative correlations (p < 0.1) to the application of bronchial lavage in SMPP group, indicating their roles in the development of MPP. At the convalescent phase, more cytokines recovered in GMPP (18) than SMPP (11), revealing better controlled immune response during GMPP. These results reveal different immune response patterns during GMPP and SMPP. In addition, the differentiated cytokines may serve as potential indicators of SMPP; early intervention on immune response regulations may be helpful in reducing the severity of SMPP.
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Affiliation(s)
- Zhikun Zhang
- Beijing Tropical Medicine Research Institute, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Haiwei Dou
- Beijing Tropical Medicine Research Institute, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Peng Tu
- Beijing Tropical Medicine Research Institute, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Dawei Shi
- Beijing Tropical Medicine Research Institute, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Ran Wei
- Beijing Tropical Medicine Research Institute, Beijing Friendship Hospital, Capital Medical University, Beijing, China
- Department of Pediatric, Baotou Fourth Hospital, Baotou, Inner Mongolia, China
| | - Ruijie Wan
- Beijing Tropical Medicine Research Institute, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Chunmei Jia
- Department of Pediatric, Baotou Fourth Hospital, Baotou, Inner Mongolia, China
| | - Lihua Ning
- Department of Pediatric, Baotou Fourth Hospital, Baotou, Inner Mongolia, China
| | - Dongmei Wang
- Department of Pediatric, Baotou Fourth Hospital, Baotou, Inner Mongolia, China
| | - Jing Li
- Department of Pediatric, Beijing Chang Ping District Hospital of Traditional Chinese Medicine and Western Medicine, Beijing, China
| | - Yan Dong
- Department of Pediatric, Beijing Chang Ping District Hospital of Traditional Chinese Medicine and Western Medicine, Beijing, China
| | - Deli Xin
- Beijing Tropical Medicine Research Institute, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Baoping Xu
- Department of Respiratory, Beijing Children’s Hospital, Capital Medical University, Beijing, China
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Wang G, Wu P, Tang R, Zhang W. Global prevalence of resistance to macrolides in Mycoplasma pneumoniae: a systematic review and meta-analysis. J Antimicrob Chemother 2022; 77:2353-2363. [PMID: 35678262 DOI: 10.1093/jac/dkac170] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Accepted: 05/03/2022] [Indexed: 02/05/2023] Open
Abstract
OBJECTIVES To determine the prevalence of resistance to macrolides in Mycoplasma pneumoniae worldwide. METHODS Prior to 12 December 2020, PubMed, Web of Science, Scopus and Embase databases were searched for epidemiological studies of M. pneumoniae resistance. Two reviewers independently extracted data from included studies. The extracted data include sampling population, total sampling number, the number of resistant strains and the molecular subtype of resistant strains. The estimate of resistance prevalence was calculated using the random-effects model. RESULTS A total of 17 873 strains were obtained from five continents and reported in 98 investigations between 2000 and 2020, with 8836 strains characterized as macrolide resistant. In summary, macrolide-resistant M. pneumoniae was most common in Asia (63% [95% CI 56, 69]). In Europe, North America, South America and Oceania, the prevalence was 3% [2, 7], 8.6% [6, 11], 0% and 3.3%, respectively. Over the last 20 years, the prevalence of macrolide-resistant M. pneumoniae has remained high in China (81% [73, 87]), with a significant increasing trend in South Korea (4% [1, 9] to 78% [49, 93], P < 0.0001). Furthermore, a point mutation at 2063 from A to G was mostly related to M. pneumoniae macrolide resistance. In terms of clinical outcomes, longer cough (mean difference [MD]: 2.93 [0.26, 5.60]) and febrile days (MD: 1.52 [1.12, 1.92]), and prolonged hospital stays (MD: 0.76 [0.05, 1.46]) might be induced by macrolide-resistant M. pneumoniae pneumonia. CONCLUSIONS The incidence of macrolide-resistant M. pneumoniae varies globally, with eastern Asia having a greater degree of resistance. However, attention is also required in other areas, and antibiotic alternatives should be considered for treatment in high-prevalence countries.
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Affiliation(s)
- Guotuan Wang
- Department of pharmacy, Karamay central hospital of Xinjiang, Karamay, Xinjiang, China
| | - Peng Wu
- Department of emergency, Karamay central hospital of Xinjiang, Karamay, Xinjiang, China
| | - Rui Tang
- Department of pharmacy, West China hospital, Sichuan university, Chengdu, Sichuan, China
| | - Weidong Zhang
- Department of pharmacy, Karamay central hospital of Xinjiang, Karamay, Xinjiang, China
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Zhang C, Sun L, Wang D, Li Y, Zhang L, Wang L, Peng J. Advances in antimicrobial resistance testing. Adv Clin Chem 2022; 111:1-68. [DOI: 10.1016/bs.acc.2022.07.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Desriani, Azamris, Ghaissani SS, Kinanti SR, Warisman MA, Fitria N. Design and characterization of a SYBR Green I-based melting curve method for investigation of HER2I655V polymorphism in breast cancer. J Genet Eng Biotechnol 2021; 19:6. [PMID: 33428029 PMCID: PMC7801533 DOI: 10.1186/s43141-020-00108-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Accepted: 12/21/2020] [Indexed: 11/23/2022]
Abstract
Background Breast cancer is a disease in which cell grows rapidly forming a mass in the breast. HER2 polymorphisms Ile655Val have been studied as biomarkers for breast cancer and may comprise a risk factor of cardiac toxicity for breast cancer-consuming trastuzumab. Aim of work: In this study, we developed a simple, low cost, and rapid test to detect polymorphism at HER2 gene using SYBR Green I-based melting curve method. Subjects and methods In this report, we performed allelic discrimination with real-time temperature melting (Tm) Shift SYBR Green I-based melting curve method. The melting profiles of amplified DNA HER-2 Ile655Val and its characteristics were analyzed. Result Tm value of HER2 GG and AA alleles were 85 ± 0.14 °C and 82.5 ± 0.23 °C, respectively, while cycle threshold (Ct) value of GG, AG, and AA alleles were 19.6 ± 0.27, 22.5 ± 0.23, 18.6 ± 0.22 correspondingly; furthermore, no template control has shown consisting Ct value at 31.18 ± 0.27. The developed methods’ characteristics were optimum annealing at 62 °C and Kappa coefficient value 1 with the mean almost consistent with PCR-sequencing. The coefficient of variability for intra-assay of GG, AG, and AA was in the range of 0.2–1%, while the coefficient of variability for inter-assay for each were in the range 0.7–1%. Further, based on PCR, shelf-life assay has shown stability for 3 months of storage observation. Conclusion This approach may be considered as simple, rapid, and low cost supporting the rapid study of HER2 epidemiology. Furthermore, the developed methods potentially facilitate clinicians in dealing with breast cancer patients, especially in considering about the cardiotoxicity effect of trastuzumab.
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Affiliation(s)
- Desriani
- Research Center for Biotechnology, Indonesian Institute of Sciences (LIPI), Jl Raya Cibinong KM 46, Bogor, West Java, Indonesia.
| | - Azamris
- Division of Surgical Oncology Medical School of M. Djamil Hospital, Andalas University, Jl Perintis Kemerdekaan No. 94, Padang, West Sumatra, Indonesia
| | - Shabrina S Ghaissani
- Research Center for Biotechnology, Indonesian Institute of Sciences (LIPI), Jl Raya Cibinong KM 46, Bogor, West Java, Indonesia
| | - Senja R Kinanti
- Research Center for Biotechnology, Indonesian Institute of Sciences (LIPI), Jl Raya Cibinong KM 46, Bogor, West Java, Indonesia
| | - Muhammad A Warisman
- Research Center for Biotechnology, Indonesian Institute of Sciences (LIPI), Jl Raya Cibinong KM 46, Bogor, West Java, Indonesia
| | - N Fitria
- Department of Pharmacology and Clinical Pharmacy, Faculty of Pharmacy, Andalas University, West Sumatra, Indonesia
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Pouladi I, Mirnejad R, Rostampur S, Viesy S, Niakan M. Molecular Detection and Evaluation of MLـ Resistance M. Pneumoniae Associated with Mutation in 23S RNA Gene among Iranian Patients with Respiratory Infections. Rep Biochem Mol Biol 2020; 9:223-229. [PMID: 33178873 DOI: 10.29252/rbmb.9.2.223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
Background Mycoplasma pneumoniae is a common cause of community-acquired pneumonia. The global increased resistance of M. pneumoniae strains to macrolide (ML) has become a worrisome health problem. The widespread use of these medications has led to increased rate of reported ML-resistant M. pneumoniae (MRMP) throughout the world. This study was aimed to evaluate the resistance of M. pneumoniae against erythromycin due to mutations in the 23S rRNA gene of patients with respiratory infections in Iran. Methods In this study, 100 samples of throat swab from a patient with respiratory problems were collected. After the cultured of all samples in M. pneumonia-specific PPLO medium, PCR technique was performed with specific primers. Afterwards, the broth micro-dilution MIC assay was employed. Finally, the PCR product of the 23S rRNA gene was sequenced to detect mutations of domain V in 23S rRNA gene of MRMP. Results It was found that 17 cases (17%) were positive for mycoplasma genus and six cases (6%) positive for M. pneumoniae species. Also, analysis of the sequence of 23S rRNA gene, revealed that one of the samples had mutations at positions A2431G and G2491A. All positive samples M. pneumoniae with 23S rRNA gene were sensitive to erythromycin. Conclusion These use of these antibiotics should be limited to prevent the emergence of MRMP in Iran.
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Affiliation(s)
- Iman Pouladi
- Department of Medical Microbiology, Faculty of Medicine, Shahed University, Tehran, Iran
| | - Reza Mirnejad
- Molecular Biology Research Center, System biology and Poisoning institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Susan Rostampur
- Student Research Committee of faculty paramedicine, Iran University of Medical Sciences, Tehran, Iran
| | - Soghra Viesy
- Department of Medical parasitology, Faculty of paramedicine, Ilam University of Medical Sciences, Ilam, Iran
| | - Mohammad Niakan
- Department of Medical Microbiology, Faculty of Medicine, Shahed University, Tehran, Iran
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Zhou Y, Wang J, Chen W, Shen N, Tao Y, Zhao R, Luo L, Li B, Cao Q. Impact of viral coinfection and macrolide-resistant mycoplasma infection in children with refractory Mycoplasma pneumoniae pneumonia. BMC Infect Dis 2020; 20:633. [PMID: 32847534 PMCID: PMC7447613 DOI: 10.1186/s12879-020-05356-1] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Accepted: 08/17/2020] [Indexed: 01/13/2023] Open
Abstract
Background Cases of refractory Mycoplasma pneumoniae pneumonia have been increasing recently; however, whether viral coinfection or macrolide-resistant M. infection contribute to the development of refractory M. pneumoniae pneumonia remains unclear. This study aimed to investigate the impacts of viral coinfection and macrolide-resistant M. pneumoniae infection on M. pneumoniae pneumonia in hospitalized children and build a model to predict a severe disease course. Methods Nasopharyngeal swabs or sputum specimens were collected from patients with community-acquired pneumonia meeting our protocol who were admitted to Shanghai Children’s Medical Center from December 1, 2016, to May 31, 2019. The specimens were tested with the FilmArray Respiratory Panel, a multiplex polymerase chain reaction assay that detects 16 viruses, Bordetella pertussis, M. pneumoniae, and Chlamydophila pneumoniae. Univariate and multivariate logistic regression models were used to identify the risk factors for adenovirus coinfection and macrolide-resistant mycoplasma infection. Results Among the 107 M. pneumoniae pneumonia patients, the coinfection rate was 56.07%, and 60 (60/107, 56.07%) patients were infected by drug-resistant M. pneumoniae. Adenovirus was the most prevalent coinfecting organism, accounting for 22.43% (24/107). The classification tree confirmed that viral coinfection was more common in patients younger than 3 years old. Adenovirus coinfection and drug-resistant M. pneumoniae infection occurred more commonly in patients with refractory M. pneumoniae pneumonia (P = 0.019; P = 0.001). A prediction model including wheezing, lung consolidation and extrapulmonary complications was used to predict adenovirus coinfection. The area under the receiver operating characteristic curve of the prediction model was 0.795 (95% CI 0.679–0.893, P < 0.001). A prolonged fever duration after the application of macrolides for 48 h was found more commonly in patients infected by drug-resistant M. pneumoniae (P = 0.002). A fever duration longer than 7 days was an independent risk factor for drug-resistant Mycoplasma infection (OR = 3.500, 95% CI = 1.310–9.353, P = 0.012). Conclusions The occurrence of refractory M. pneumoniae pneumonia is associated with adenovirus coinfection and infection by drug-resistant M. pneumoniae. A prediction model combining wheezing, extrapulmonary complications and lung consolidation can be used to predict adenovirus coinfection in children with M. pneumoniae pneumonia. A prolonged fever duration indicates drug-resistant M. pneumoniae infection, and a reasonable change in antibiotics is necessary.
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Affiliation(s)
- Yajuan Zhou
- Department of Infectious Diseases, Shanghai Children's Medical Center, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Jing Wang
- Department of Infectious Diseases, Shanghai Children's Medical Center, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Wenjuan Chen
- Department of Infectious Diseases, Shanghai Children's Medical Center, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Nan Shen
- Department of Infectious Diseases, Shanghai Children's Medical Center, Shanghai Jiaotong University School of Medicine, Shanghai, China.,The Laboratory of Pediatric Infectious Diseases, Pediatric Translational Medicine Institute, Shanghai Children's Medical Center, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Yue Tao
- The Laboratory of Pediatric Infectious Diseases, Pediatric Translational Medicine Institute, Shanghai Children's Medical Center, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Ruike Zhao
- The Laboratory of Pediatric Infectious Diseases, Pediatric Translational Medicine Institute, Shanghai Children's Medical Center, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Lijuan Luo
- Department of Infectious Diseases, Shanghai Children's Medical Center, Shanghai Jiaotong University School of Medicine, Shanghai, China.
| | - Biru Li
- Department of Critical Care Medicine, Shanghai Children's Medical Center, Shanghai Jiaotong University School of Medicine, Shanghai, China.
| | - Qing Cao
- Department of Infectious Diseases, Shanghai Children's Medical Center, Shanghai Jiaotong University School of Medicine, Shanghai, China.
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