1
|
Zhao Z, Zhao YN, Jin JY, Yang JS, Zhu J, Li T. [Application of cardiac magnetic resonance imaging in subclinical systemic sclerosis primary heart involvement]. Zhonghua Nei Ke Za Zhi 2024; 63:176-182. [PMID: 38326044 DOI: 10.3760/cma.j.cn112138-20231101-00277] [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: 02/09/2024]
Abstract
Objectives: Primary cardiac involvement (SSc-PHI) in systemic sclerosis is an important prognostic factor. We aimed to characterize and identify subclinical SSc-PHI using cardiovascular MRI to determine whether disease severity and serum biomarkers are associated with subclinical SSc-PHI. Methods: A total of 26 patients with SSc who had no history of cardiovascular disease or pulmonary hypertension underwent 3 T-enhanced cardiovascular MRI. Measurements included native T1, extracellular volume, advanced gadolinium enhancement, T2 mapping, and left ventricular volume function. Troponin T and N telencephalic natriuretic peptide precursors were also determined. Results: LGE was observed in 13 of 26 patients (50.0%), suggesting focal fibrosis, and T2 mapping was significantly higher in the dcSSc group than in the lcSSc group (P=0.009). Left ventricular volume and function were within the normal range in all patients, but final systolic left ventricular volume was significantly higher in dcSSc than in lcSSc (P=0.021). The modified Rodnan skin score (mRSS) was significantly higher in patients with LGE focal fibrosis (P=0.019). Logistic regression analysis confirmed the association between mRSS and LGE (OR=1.224, P=0.037). In multivariate analysis, T2 mapping was negatively correlated with disease course, and was correlated with dcSSc and fingertip ulcer (R2=0.711, P=0.018, P=0.013, P=0.030). Troponin T was correlated with T2 mapping (r=0.555, P=0.049). Conclusions: Subclinical SSc-PHI is characterized by diffuse and focal myocardial fibrosis, but preserves myocardial systolic function. Subclinical SSC-Phi is associated with TNT, SSc disease severity, and complex peripheral vascular disease. These data provide information for identifying individuals at risk of SSc-PHI.
Collapse
Affiliation(s)
- Z Zhao
- Department of Rheumatology and Immunology,the First Medical Center of the Chinese PLA General Hospital, Beijing 100853, China
| | - Y N Zhao
- Department of Radiology, the First Medical Center of the Chinese PLA General Hospital, Beijing 100853, China
| | - J Y Jin
- Department of Rheumatology and Immunology,the First Medical Center of the Chinese PLA General Hospital, Beijing 100853, China
| | - J S Yang
- Department of Rheumatology and Immunology,the First Medical Center of the Chinese PLA General Hospital, Beijing 100853, China
| | - J Zhu
- Department of Rheumatology and Immunology,the First Medical Center of the Chinese PLA General Hospital, Beijing 100853, China
| | - T Li
- Department of Radiology, the First Medical Center of the Chinese PLA General Hospital, Beijing 100853, China
| |
Collapse
|
2
|
Chen F, Zhou P, Lee KW, Liu Q, Helali AE, Jin JY, Lee AWM, Yu H, Kong FM. Interpretable Deep Learning Identified the Significance of 1 Gy Volume on Lymphopenia after Radiotherapy in Breast Cancer. Int J Radiat Oncol Biol Phys 2023; 117:e168. [PMID: 37784771 DOI: 10.1016/j.ijrobp.2023.06.1006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Lymphopenia is common after radiotherapy (RT) and is known for its significance on poor survival outcomes in patients with breast cancer. Previous work has demonstrated the significance of point dosimetric factors like the volume receiving 5 Gy. Considering the full dosimetric data together, this study aimed to develop and validate predictive models for lymphopenia after RT in breast cancer. MATERIALS/METHODS Patients with breast cancer treated with radiation therapy in adjuvant setting and with complete dosimetric data were eligible. Combining dose-volume histogram (DVH) dosimetric and clinical factors, dense neural network (DNN) models were developed to predict both the reduction in lymphocyte counts and the graded lymphopenia in breast cancer patients after adjuvant RT. A Shapley additive explanation was applied to explain each feature's directional contributions. The generalization of DNN models was validated in both internal and independent external validation cohorts. P<0.05 was considered to be significant. RESULTS A total of 928 consecutive patients with invasive breast cancer were eligible for this study. Treatment volumes of nearly all irradiation dose levels of DVH were significant predictors for lymphopenia after RT, including volumes at very low-dose 1 Gy (V1) of all structures considered including the lung, heart and body. DNN models using full DVH dosimetric and clinical factors were built and a simplified model was further established and validated in both internal and external validation cohorts. This simplified DNN AI model, combining full DVH dosimetric parameters of all OARs and five key clinical factors including baseline lymphocyte counts, tumor stage, RT technique, RT fields and RT fractionation, showed a predictive accuracy of 77% and above. CONCLUSION This study demonstrated and externally validated the significance of an AI model of combining clinical and full dosimetric data, especially the volume of low dose at as low as 1 Gy of all critical structures on lymphopenia after RT in patients with breast cancer. The significance of V1 deserves special attention, as modern arc RT technology often has relatively high value of this parameter. Further study warranted for breast cancer RT plan optimization.
Collapse
Affiliation(s)
- F Chen
- The University of Hong Kong-Shenzhen Hospital, Shenzhen, China; The University of Hong Kong, Hong Kong, China
| | - P Zhou
- Department of Radiotherapy, The First Affiliated Hospital of Hainan Medical University, Haikou, China
| | - K W Lee
- The University of Hong Kong-Shenzhen Hospital, Shenzhen, China
| | - Q Liu
- The University of Hong Kong, Hong Kong, China
| | - A E Helali
- The University of Hong Kong, Hong Kong, China
| | - J Y Jin
- School of biomedical engineering, Capital Medical University, Beijing, China
| | - A W M Lee
- The University of Hong Kong-Shenzhen Hospital, Shenzhen, China
| | - H Yu
- Chinese Academy of Sciences Shenzhen Institutes of Advanced Technology, Shenzhen, China, Shenzhen, China
| | - F M Kong
- The University of Hong Kong-Shenzhen Hospital, Shenzhen, China; The University of Hong Kong, Hong Kong, China
| |
Collapse
|
3
|
Tan EX, Lim WH, Thong E, Chavatte JM, Zhang J, Lim J, Jin JY, Lim DR, Kang JY, Tang ASP, Chan KE, Tan C, Tan SN, Nah B, Huang DQ, Wang LF, Tambyah PA, Somani J, Young B, Muthiah MD. Clinical Course, Immunogenicity, and Efficacy of BNT162b2 mRNA Vaccination Against SARS-CoV-2 Infection in Liver Transplant Recipients. Transplant Direct 2023; 9:e1537. [PMID: 37745946 PMCID: PMC10513132 DOI: 10.1097/txd.0000000000001537] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2023] [Revised: 06/22/2023] [Accepted: 07/07/2023] [Indexed: 09/26/2023] Open
Abstract
Background Immunocompromised individuals have been excluded from landmark studies of messenger RNA vaccinations for severe acute respiratory syndrome coronavirus type 2 (SARS-CoV-2). In such patients, the response to vaccination may be blunted and may wane more quickly compared with immunocompetent patients. We studied the factors associated with decreased antibody response to SARS-CoV-2 vaccination and risk factors for subsequent breakthrough infections in liver transplant (LT) patients undergoing coronavirus disease 2019 vaccination with at least 2 doses of messenger RNA vaccine from April 28, 2021, to April 28, 2022. Methods All LT recipients received at least 2 doses of the BNT162b2 (Pfizer BioNTech) vaccine 21 d apart. We measured the antibody response against the SARS-CoV-2 spike protein using the Roche Elecsys immunoassay to the receptor-binding domain of the SARS-CoV-2 spike protein, and the presence of neutralizing antibodies was measured by the surrogate virus neutralization test (cPass) before first and second doses of vaccination and also between 2 and 3 mo after the second dose of vaccination. Results Ninety-three LT recipients who received 2 doses of BNT162b2 were included in the analysis. The mean time from LT was 110 ± 154 mo. After 2-dose vaccination, 38.7% of LT recipients (36/93) were vaccine nonresponders on the cPass assay compared with 20.4% (19/93) on the Roche S assay. On multivariable analysis, increased age and increased tacrolimus trough were found to be associated with poor neutralizing antibody response (P = 0.038 and 0.022, respectively). The use of antimetabolite therapy in conjunction with tacrolimus approached statistical significance (odds ratio 0.21; 95% confidence interval, 0.180-3.72; P = 0.062). Breakthrough infection occurred in 18 of 88 LT recipients (20.4%). Female gender was independently associated with breakthrough infections (P < 0.001). Conclusions Among LT recipients, older age and higher tacrolimus trough levels were associated with poorer immune response to 2-dose SARS-CoV-2 vaccination. Further studies are needed to assess variables associated with breakthrough infections and, hence, who should be prioritized for booster vaccination.
Collapse
Affiliation(s)
- Eunice X. Tan
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Division of Gastroenterology and Hepatology, Department of Medicine, National University Hospital, Singapore, Singapore
- National University Centre for Organ Transplantation, National University Health System, Singapore
| | - Wen Hui Lim
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Elizabeth Thong
- Department of Medicine, National University Hospital, Singapore, Singapore
| | | | - Jinyan Zhang
- Programme in Emerging Infectious Diseases, Duke-NUS Medical School, Singapore
| | - Jonathan Lim
- National Centre for Infectious Diseases, Singapore
| | | | | | | | - Ansel Shao Pin Tang
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Kai En Chan
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Caitlyn Tan
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Shi Ni Tan
- Division of Gastroenterology and Hepatology, Department of Medicine, National University Hospital, Singapore, Singapore
| | - Benjamin Nah
- Division of Gastroenterology and Hepatology, Department of Medicine, National University Hospital, Singapore, Singapore
| | - Daniel Q. Huang
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Division of Gastroenterology and Hepatology, Department of Medicine, National University Hospital, Singapore, Singapore
- National University Centre for Organ Transplantation, National University Health System, Singapore
| | - Lin-Fa Wang
- Programme in Emerging Infectious Diseases, Duke-NUS Medical School, Singapore
| | - Paul A. Tambyah
- Division of Infectious Diseases, Department of Medicine, National University Hospital, Singapore
| | - Jyoti Somani
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Division of Infectious Diseases, Department of Medicine, National University Hospital, Singapore
| | - Barnaby Young
- National Centre for Infectious Diseases, Singapore
- Department of Infectious Diseases, Tan Tock Seng Hospital, Singapore
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore
| | - Mark D. Muthiah
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Division of Gastroenterology and Hepatology, Department of Medicine, National University Hospital, Singapore, Singapore
- National University Centre for Organ Transplantation, National University Health System, Singapore
| |
Collapse
|
4
|
Jin JY, Lyu YQ, Lu TT, Yin WJ, Wu YX, Liu XY, Yang Y, Wu CQ, Ni XH, Su D. [Distribution characteristics of tumor infiltrating lymphocytes in EBV-associated lymphoepithelioma-like carcinoma and their clinical significance]. Zhonghua Bing Li Xue Za Zhi 2023; 52:814-819. [PMID: 37527986 DOI: 10.3760/cma.j.cn112151-20221227-01066] [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: 08/03/2023]
Abstract
Objective: To investigate the association between the distribution of tumor infiltrating lymphocytes (TIL) in EBV associated lymphoepitheliomatoid carcinoma (LELC) and the pathological subtypes of LELC, as well as the clinical significance of TIL distribution. Methods: The LELC patients with sufficient tumor tissues, complete clinical data and positive EBER, who visited Zhejiang Cancer Hospital, Hangzhou, China from January 2006 to October 2018, were selected. Various immunohistochemical markers (CD20, CD138, CD4, CD8, CD56 and FOXP3) were examined for TIL typing. Two pathologists reviewed the hematoxylin and eosin (HE) staining sections and interpreted the immunohistochemical results. Correlation analysis was used to evaluate the relationship between the distribution of TIL subgroups and LELC's pathological characteristics. Survival analyses were conducted to study the prognostic values of TIL subgrouping. Results: A total of 102 patients with EBV related LELC were included. 46 of them were classic LELC (c-LELC) with rich interstitial TIL, and 56 were non-classic LELC (n-LELC) with relatively fewer interstitial TIL. The results of TIL analysis showed that all subtypes of c-LELC were rich in TIL, with B lymphocytes as the dominant subgroup. The number of TIL in n-LELC was fewer than that in c-LELC, with T lymphocytes as the dominant subgroup. There was no significant difference in the distribution of plasma cells between the two groups. Survival analysis showed that the total number of TIL, and the infiltrations of CD20+B cells, CD4+T cells, and FOXP3+Treg cells were associated with better overall survivals (P=0.004, 0.003, 0.008 and 0.025, respectively) and disease-free survivals (P=0.011, 0.003, 0.038 and 0.041, respectively) in patients with LELC. Conclusions: The morphologic subtypes of EBV-related LELC have different tumor immune characteristics. The total number of TIL in the stroma of c-LELC is significantly higher than that of n-LELC. Interestingly, B lymphocytes are the dominant TIL in c-LELC, while T lymphocytes are the dominant TIL in n-LELC. The infiltration of TIL, CD20+B cells, CD4+T cells and FOXP3+Treg cells in LELC may suggest a better prognosis.
Collapse
Affiliation(s)
- J Y Jin
- Department of Pathology, Zhejiang Cancer Hospital, Hangzhou 310022, China
| | - Y Q Lyu
- Department of Oncology, the First Clinical Medical College of Wenzhou Medical University, Wenzhou 325035, China
| | - T T Lu
- Department of Oncology, the First Clinical Medical College of Wenzhou Medical University, Wenzhou 325035, China
| | - W J Yin
- Department of Pathology, Zhejiang Cancer Hospital, Hangzhou 310022, China
| | - Y X Wu
- Department of Pathology, Zhejiang Cancer Hospital, Hangzhou 310022, China
| | - X Y Liu
- Department of Oncology, the Second Clinical Medical College, Zhejiang Chinese Medicine University, Hangzhou 310053, China
| | - Y Yang
- Department of Oncology, the Second Clinical Medical College, Zhejiang Chinese Medicine University, Hangzhou 310053, China
| | - C Q Wu
- Department of Pathology, Zhejiang Cancer Hospital, Hangzhou 310022, China
| | - X H Ni
- Department of Pathology, Zhejiang Cancer Hospital, Hangzhou 310022, China
| | - D Su
- Department of Oncology, the First Clinical Medical College of Wenzhou Medical University, Wenzhou 325035, China
| |
Collapse
|
5
|
Polhamus DG, Dolton MJ, Rogers JA, Honigberg L, Jin JY, Quartino A. Longitudinal Exposure-Response Modeling of Multiple Indicators of Alzheimer's Disease Progression. J Prev Alzheimers Dis 2023; 10:212-222. [PMID: 36946448 DOI: 10.14283/jpad.2023.13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
BACKGROUND Progression in Alzheimer's disease manifests as changes in multiple biomarker, cognitive, and functional endpoints. Disease progression modeling can be used to integrate these multiple measures into a synthesized metric of where a patient lies within the disease spectrum, allowing for a more dynamic measure over the range of the disease. OBJECTIVES This study aimed to combine modeling techniques from psychometric research (e.g., item response theory) and pharmacometrics (e.g., hierarchical models) to describe the multivariate longitudinal disease progression for patients with mild-to-moderate Alzheimer's disease. Additionally, we aimed to extend the subsequent model to make it suitable for clinical trial simulation, with the inclusion of covariates, to explain variability in latent progression (i.e., disease progression) and to aid in the assessment of enrichment strategies. DESIGN Multiple longitudinal endpoints in the Alzheimer's Disease Neuroimaging Initiative database were modeled. This model was validated internally using visual predictive checks, and externally by comparing data from the placebo arms of two Phase 2 crenezumab studies, ABBY (NCT01343966) and BLAZE (NCT01397578). SETTING The Alzheimer's Disease Neuroimaging Initiative began in 2004: the initial 5-year study (ADNI-1) was extended by 2 years in 2009 by a Grand Opportunities grant (ADNI-GO), and in 2011 and 2016 by further competitive renewals of the ADNI-1 grant (ADNI-2 and ADNI-3, respectively). This work studies natural progression data from patients with confirmed Alzheimer's disease. The Phase 2 ABBY and BLAZE trials evaluated the safety and efficacy of crenezumab in patients with mild-to-moderate Alzheimer's disease. PARTICIPANTS From the Alzheimer's Disease Neuroimaging Initiative database, 305 subjects who had a baseline diagnosis of mild-to-moderate Alzheimer's disease were included in modeling. From the ABBY and BLAZE studies, 158 patients were included from the studies' placebo arms. MEASUREMENTS Longitudinal cognitive and functional assessments modeled included the Clinical Dementia Rating (both as Sum of Boxes and individual item scores), the Mini-Mental State Examination, the Alzheimer's Disease Assessment Scale - Cognitive Subscale, the Functional Activities Questionnaire, the Montreal Cognitive Assessment, and the Rey Auditory Verbal Learning Test. Also included were the imaging variable fluorodeoxyglucose-positron emission tomography and the following magnetic resonance imaging volumetrics: entorhinal, fusiform, hippocampal, intra-cranial, mid-temporal, ventricular, and whole brain. RESULTS Applying item response theory approaches in this longitudinal setting showed clinical assessments informing a common disease scale in the following order (from early disease to late disease): Rey Auditory Verbal Learning Test, Functional Activities Questionnaire, Montreal Cognitive Assessment, Alzheimer's Disease Assessment Scale - Cognitive Subscale 12, Clinical Dementia Rating - Sum of Boxes, and Mini-Mental State Examination. The Clinical Dementia Rating communication and home-and-hobbies items were most informative at earlier disease stages, while memory, orientation, and personal care informed the disease status at later stages. A clinical trial simulation model was developed and accurately described within-sample longitudinal distribution of endpoints. Simplifying the model to use only baseline age, MMSE, and APOEε4 status as predictors, out-of-sample mean progression of ADAS-Cog and CDR Sum of Boxes in the ABBY and BLAZE placebo arms was accurately described; however, the variability in these endpoints was underpredicted and suggests possibility for further model refinement when extrapolating from the ADNI sample to trial data. Clinical trial simulations were performed to exemplify use of the model to investigate hypothetical disease modification effects on the multivariate, longitudinal progression on the Alzheimer's Disease Assessment Scale - Cognitive Subscale and the Clinical Dementia Rating - Sum of Boxes. CONCLUSIONS The latent variable structure of item response theory can be extended to capture a variety of scales that are common assessments and indicators of disease status in mild-to-moderate Alzheimer's disease. These models are not intended to support causal inferences, but they do successfully characterize the observed correlation between endpoints over time and result in concise numerical indices of disease status that reflect the totality of evidence from considering the endpoints jointly. As such, the models have utility for a variety of tasks in clinical trial design, including simulation of hypothetical drug effects, interpolation of missing data, and assessment of in-sample information.
Collapse
Affiliation(s)
- D G Polhamus
- Michael J. Dolton, Roche Products Pty Limited, Sydney, NSW, Australia; Telephone: +612 9454 9000;
| | | | | | | | | | | |
Collapse
|
6
|
Jin JY, Qiu FR, Zhang J. [Application progress of liquid chromatography tandem mass spectrometry in precision medicine]. Zhonghua Yu Fang Yi Xue Za Zhi 2022; 56:1675-1684. [PMID: 36372762 DOI: 10.3760/cma.j.cn112150-20211207-01128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Liquid chromatography tandem mass spectrometry (LC-MS/MS) is an analytical method that combines high separation of liquid chromatography with high selectivity and sensitivity of mass spectrometry. In recent years, LC-MS/MS has been widely used in clinical practice, including screening of inherited disorders, determination of endogenous compounds and analysis of biomarkers. LC-MS/MS is of great value to the precision prevention, diagnosis and treatment of some diseases due to its accurate data. This article not only illustrates the advantages of LC-MS/MS in precision medicine, but also prospects the future trend of LC-MS/MS in clinical practice, which expects to promote the development of clinical LC-MS/MS in the prevention, diagnosis and treatment of diseases.
Collapse
Affiliation(s)
- J Y Jin
- Laboratory of Clinical Pharmacokinetics, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - F R Qiu
- Laboratory of Clinical Pharmacokinetics, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - J Zhang
- Department of Clinical Laboratory, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| |
Collapse
|
7
|
Yin WJ, Wu YX, Xu CY, Jin JY, Xiong J, Wang ZM, Chen Y, Wu MJ, Su D. [Relationship between onco-immunological and morphologic characteristics of lymphoepithelioma-like carcinoma and lymphocyte subtypes of peripheral blood]. Zhonghua Bing Li Xue Za Zhi 2022; 51:850-855. [PMID: 36097901 DOI: 10.3760/cma.j.cn112151-20211231-00946] [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 study the relationship between the onco-immunological and morphologic characteristics of lymphoepithelioma-like carcinoma (LELC) and peripheral blood lymphocyte subtypes and its clinical significance. Methods: The pathologic and clinical data of 117 LELC patients who were admitted to the Tumor Hospital of the University of Chinese Academy of Sciences from 2006 to 2018 were collected. The histological classification was based on previously reported morphological classification method. The onco-immunological and morphologic characteristics of the tumors such as lymphoid follicle formation and interstitial fibrous hyperplasia, patient's peripheral blood lymphocyte subtypes and prognosis data were collected. The relationship between various factors and their impact on prognosis were analyzed. Results: There were 117 patients, including 61 females and 56 males. The male to female ratio was 0.9∶1.0. The age of onset was 24-89 years (median 52 years). Primary sites included head and neck (68 cases), lungs (26 cases), stomach (15 cases), and others (eight cases). Morphologically, 54 cases were type Ⅰ, 62 cases were type Ⅱ, and one case could not be classified. The onco-immunological and morphologic features of the LELC tumors showed a continuous spectrum. Interstitial TILs were noted from focally to diffuse, and the interstitial fibrous tissues were from hardly visible to obvious sclerotic. Formation of lymphoid follicles was seen in 42 patients; obvious fibrosis was seen in 31 cases. Data of peripheral blood lymphocyte subtyping by flow cytometry were available in 73 cases. These data included CD3+total T cells, CD3+CD4+helper T cells, CD3+CD8+cytotoxic T cells, CD3-CD56+natural killer (NK) cells, CD3-CD19+B cells, CD4+CD45RA-T helper induction subgroup, CD4+CD45RA+ T suppression induction subgroup, CD4+CD45RO+memory T cell subgroup, CD45RA+CD45RO+activated T cell subgroup, CD8+CD38+activated cytotoxic T cell, and CD25+lymphocytes and CD44+lymphocyte. The proportion of lymphocytes of each subtype was normal in most patients, but the proportion of CD44+lymphocytes in 61 cases (83.6%) was increased; the proportion of T cell suppression induced subgroups was decreased in 53 cases (72.6%). Correlation analysis found a significant correlation between clinical stage and NK cells (P=0.023); tumor histologic type and cytotoxic T cells were significantly positively correlated (P=0.012); while tumor cell morphologic differentiation was significantly related to total T cells (P=0.003) and NK cells (P=0.026); Formation of interstitial lymphoid follicles was positively correlated with memory T cell subsets (P=0.025); Tumor interstitial fibrosis was significantly positively correlated with T suppression-induced subpopulations (P=0.004), and was significantly negatively correlated with total T cells (P=0.023) and with the expression of CD44 adhesion molecules (P=0.003). Survival analysis found that lymphoid follicle formation was a favorable prognostic factor for LELC (P=0.001). Conclusions: The onco-immunological and morphologic features in LELC show a continuous spectrum; the tumor clinicopathological characteristics and onco-immunological morphology are closely related to peripheral blood T lymphocyte subtypes, and the formation of interstitial lymphoid follicles is a favorable prognostic factor for LELC.
Collapse
Affiliation(s)
- W J Yin
- Department of Pathology, the Cancer Hospital of the University of Chinese Academy of Sciences/Zhejiang Cancer Hospital, Hangzhou 310022, China
| | - Y X Wu
- Department of Oncology, First Clinical School of Wenzhou Medical University, Wenzhou 325035, China
| | - C Y Xu
- Department of Oncology, First Clinical School of Wenzhou Medical University, Wenzhou 325035, China
| | - J Y Jin
- Department of Pathology, the Cancer Hospital of the University of Chinese Academy of Sciences/Zhejiang Cancer Hospital, Hangzhou 310022, China
| | - J Xiong
- Department of Clinical Laboratory, the Cancer Hospital of the University of Chinese Academy of Sciences/Zhejiang Cancer Hospital, Hangzhou 310022, China
| | - Z M Wang
- Department of Pathology, the First Affiliated Hospital of Zhejiang University, Hangzhou 310003, China
| | - Y Chen
- Department of Pathology, Zhejiang Province People's Hospital, Hangzhou 310014, China
| | - M J Wu
- Department of Pathology, the Cancer Hospital of the University of Chinese Academy of Sciences/Zhejiang Cancer Hospital, Hangzhou 310022, China
| | - D Su
- Department of Oncology, First Clinical School of Wenzhou Medical University, Wenzhou 325035, China
| |
Collapse
|
8
|
Wang SL, Kanlin GL, Xu NF, Tian YL, Jin JY, Li WW. [Efficacy comparison of minimally invasive atlantoaxial mass fusion and open atlantoaxial fusion in the treatment of atlantoaxial dislocation]. Zhonghua Yi Xue Za Zhi 2022; 102:2583-2589. [PMID: 36058682 DOI: 10.3760/cma.j.cn112137-20220429-00963] [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 compare the clinical effects of minimally invasive intermuscular atlantoaxial lateral mass fusion (Mis-PALF) and open atlantoaxial fusion in patients with atlantoaxial dislocation. Methods: The clinical data of patients with atlantoaxial dislocation who received Mis-PALF operation (17 cases) or open atlantoaxial fusion (88 cases, as control) in the Third Hospital of Peking University from September 2015 to September 2021 were analyzed retrospectively. In Mis-PALF group, there were 9 males and 8 females, aged (45.8±19.8) years; and there were 48 males and 40 females in the control group, aged (50.0±13.9) years. The operation time, perioperative blood loss, postoperative body temperature, postoperative pain [assessed with visual analogue scale (VAS)], postoperative additional analgesic drugs, postoperative hospitalization time, the improvement rate of Japanese Orthopedic Association (JOA) scores of spinal cord function in three-months follow-up and complications were compared between the two groups. Results: Mis-PALF group had less perioperative blood loss than control group [(111.8±35.9)ml vs (362.9±18.6)ml, P<0.01], shorter hospitalization time [(3.06±0.63) days vs (4.24±0.14) days, P<0.01] and fewer additional analgesic drugs (3/17 vs 56/88, P<0.01). There was no significant difference between the Mis-PALF and control group in operation time [(125±7)min vs (113±8)min, P=0.525], patients with fever(11/17 vs 37/88, P=0.086) or postoperative pain (1/17 vs 13/88, P=0.357), the improvement rate of JOA score (66.9%±28.8% vs 74.2%±28.6%, P=0.409) and complications rate (1/17 vs 3/88, P=1.000). Conclusion: Mis-PALF can significantly reduce the perioperative blood loss, shorten the postoperative hospitalization time and the additionally use of analgesic drugs without increasing complications.
Collapse
Affiliation(s)
- S L Wang
- Department of Orthopedics, Peking University Third Hospital, Engineering Research Center of Bone and Joint Precision Medicine, Beijing Key Laboratory of Spinal Disease Research, Beijing 100191, China
| | - G L Kanlin
- Department of Orthopedics, Peking University Third Hospital, Engineering Research Center of Bone and Joint Precision Medicine, Beijing Key Laboratory of Spinal Disease Research, Beijing 100191, China
| | - N F Xu
- Department of Orthopedics, Peking University Third Hospital, Engineering Research Center of Bone and Joint Precision Medicine, Beijing Key Laboratory of Spinal Disease Research, Beijing 100191, China
| | - Y L Tian
- Department of Orthopedics, Peking University Third Hospital, Engineering Research Center of Bone and Joint Precision Medicine, Beijing Key Laboratory of Spinal Disease Research, Beijing 100191, China
| | - J Y Jin
- Department of Orthopedics, Peking University Third Hospital, Engineering Research Center of Bone and Joint Precision Medicine, Beijing Key Laboratory of Spinal Disease Research, Beijing 100191, China
| | - W W Li
- Department of Orthopedics, Peking University Third Hospital, Engineering Research Center of Bone and Joint Precision Medicine, Beijing Key Laboratory of Spinal Disease Research, Beijing 100191, China
| |
Collapse
|
9
|
Sha S, Dai SY, Zheng WL, Jin JY, Yang WH, Li JF, Mao CJ, Wang P. [Study on the effect of AIDS preventive cascade services provided by social organizations for men who have sex with men in China]. Zhonghua Liu Xing Bing Xue Za Zhi 2022; 43:960-965. [PMID: 35725356 DOI: 10.3760/cma.j.cn112338-20220303-00166] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective: To analyze the effect and main gaps of each stage in the AIDS prevention cascade for men who have sex with men (MSM) provided in intervention projects supported by the China AIDS Fund for non-governmental organizations (CAFNGO) and provide suggestions to improve the quality of cascade services and project management. Methods: Data were collected through the CAFNGO management information system and field interviews to analyze the differences in the number of MSM receiving HIV testing and confirming tests, the newly reported patients, and the number of antiviral treatment (ART) referrals of newly established reported patients among different social organization service areas. A service chain chart was also drawn. Results: Between 2016 and 2020, 1 508 MSM intervention projects were funded by CAFNGO, including 1 183 234 MSM being mobilized to receive HIV testing. However, only 68.8% (1 183 234/1 719 139) of the testing capacity of social organizations was covered by these projects. As a result, 55 783 HIV-positive MSM were detected in preliminary screening, and only 86.6% (48 327/55 783) received confirming tests. The proportion of newly reported infections was 3.8% (45 347/1 183 234). The ratio of antiviral treatment (ART) referrals for newly reported patients between 2017 and 2020 was 89.8% (32 719/36 444). 75.8%(1 143/1 508) of total MSM intervention projects were implemented by community-based organizations (Non-registered civil affairs departments). In comparison, organizations registered in civil affairs departments took up 24.2% (365/1 508) of the total MSM intervention projects. No significant difference was noticed in the proportion of newly reported infected (3.8% and 3.8%) and the ratio of ART referrals (89.7% and 89.9%) between community-based organizations and registered organizations' projects. But these two proportions are significantly different between these two types of organizations in some areas in China. Conclusions: The AIDS prevention cascade established in CAFNGO has effectively promoted the early detection and treatment of infected MSM. However, CAFNGO needs more financial support to extend testing coverage for MSM. Meanwhile, confirmation testing for positives in preliminary screening and ART referrals needs to be improved for newly reported patients. In addition, various capacity building needs to be provided for different social organizations.
Collapse
Affiliation(s)
- S Sha
- China AIDS Fund for Non-governmental Organizations Management Committee Office, Chinese Preventive Medicine Association, Beijing 100020, China
| | - S Y Dai
- China AIDS Fund for Non-governmental Organizations Management Committee Office, Chinese Preventive Medicine Association, Beijing 100020, China
| | - W L Zheng
- China AIDS Fund for Non-governmental Organizations Management Committee Office, Chinese Preventive Medicine Association, Beijing 100020, China
| | - J Y Jin
- China AIDS Fund for Non-governmental Organizations Management Committee Office, Chinese Preventive Medicine Association, Beijing 100020, China
| | - W H Yang
- China AIDS Fund for Non-governmental Organizations Management Committee Office, Chinese Preventive Medicine Association, Beijing 100020, China
| | - J F Li
- China AIDS Fund for Non-governmental Organizations Management Committee Office, Chinese Preventive Medicine Association, Beijing 100020, China
| | - C J Mao
- China AIDS Fund for Non-governmental Organizations Management Committee Office, Chinese Preventive Medicine Association, Beijing 100020, China
| | - P Wang
- China AIDS Fund for Non-governmental Organizations Management Committee Office, Chinese Preventive Medicine Association, Beijing 100020, China
| |
Collapse
|
10
|
Xi Y, Zhang ML, He C, Cheng GP, Jin JY, Fang XH, Zhu T, Su D. [Primary ovarian squamous cell carcinoma: clinicopathological features and prognostic analysis of fifteen cases]. Zhonghua Bing Li Xue Za Zhi 2022; 51:332-337. [PMID: 35359045 DOI: 10.3760/cma.j.cn112151-20210719-00516] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To assess the clinical features and treatment outcomes in patients with primary ovarian squamous cell carcinoma (POSCC). Methods: Fifteen patients with primary ovarian squamous cell carcinoma diagnosed from January 2009 to December 2018 in Cancer Hospital of the University of Chinese Academy of Sciences were collected. The expression of p16, hMLH1, hMSH2, hMSH6 and PMS2 in POSCC was detected by immunohistochemistry, and the status of high-risk human papillomavirus (HPV) by RNAscope test. Results: Squamous cell carcinoma with different degrees of differentiation was found in 15 cases, including three cases with high differentiation and 12 cases with medium to low differentiation. There were four cases with in situ squamous cell carcinoma, four cases with teratoma, one case with endometrial carcinoma/atypical hyperplasia, and one case with endometriosis. p16 was expressed in five cases (5/15), indicating coexisting high-risk HPV infection. There was no high-risk HPV infection in the remaining 10 cases, and p16 staining was negative. There was no deficient mismatch repair protein in all cases. The overall survival time (P=0.038) and progression free survival (P=0.045) of patients with high-risk HPV infection were longer than those without HPV infection. Conclusions: POSCC is more commonly noted in postmenopausal women and often occurs unilaterally. Elevated serological indexes CA125 and SCC are the most common finding. Morphologically, the tumors show variable degrees of differentiation, but the current data suggest that the degree of differentiation cannot be used as an independent prognostic index. High-risk HPV infection may be associated with the occurrence of POSCC, and that the prognosis of POSCC patients with HPV infection is better than that of patients without infection.
Collapse
Affiliation(s)
- Y Xi
- Department of Pathology, Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institute of Cancer and Basic Medicine, Chinese Academy of Sciences, Hangzhou 310022, China
| | - M L Zhang
- Department of Pathology, Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institute of Cancer and Basic Medicine, Chinese Academy of Sciences, Hangzhou 310022, China
| | - C He
- Department of Pathology, Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institute of Cancer and Basic Medicine, Chinese Academy of Sciences, Hangzhou 310022, China
| | - G P Cheng
- Department of Pathology, Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institute of Cancer and Basic Medicine, Chinese Academy of Sciences, Hangzhou 310022, China
| | - J Y Jin
- Department of Pathology, Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institute of Cancer and Basic Medicine, Chinese Academy of Sciences, Hangzhou 310022, China
| | - X H Fang
- Department of Pathology, Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institute of Cancer and Basic Medicine, Chinese Academy of Sciences, Hangzhou 310022, China
| | - T Zhu
- Department of Gynecology, Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institute of Cancer and Basic Medicine, Chinese Academy of Sciences, Hangzhou 310022, China
| | - D Su
- Department of Pathology, Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institute of Cancer and Basic Medicine, Chinese Academy of Sciences, Hangzhou 310022, China
| |
Collapse
|
11
|
Meng FJ, Jin JY, Sun Y, Zhao YB, Zhou FF, Chen X, Diao YZ. [The incidence and causes of Tapia syndrome after posterior cervical spine surgery under oral tracheal intubation general anesthesia]. Zhonghua Yi Xue Za Zhi 2022; 102:666-670. [PMID: 35249311 DOI: 10.3760/cma.j.cn112137-20210911-02075] [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 observe the incidence of Tapia syndrome after posterior cervical spine surgery under oral tracheal intubation general anesthesia and to explore the risk factors for its occurrence. Methods: The data of patients suffered from Tapia syndrome after posterior cervical spine surgery under oral tracheal intubation general anesthesia from June 2018 to May 2021 were retrospectively reviewed. The type of procedure, surgeon, age and gender were selected as matching factors, 4 patients without Tapia syndrome were selected as control group for each case. The radiological parameters including mandibular-vertebral distance, thyroid-vertebral distance, thyroid cartilage-vertebral distance, and C2-C7 lordotic Cobb angle were measured on lateral radiographs of the cervical spine. The above parameters were measured on neutral, over-flexion and over-extension radiographs. The difference between the Tapia group and the control group were analyzed. Results: There were 9 patients (0.37%) suffered from Tapia syndrome after posterior cervical spine surgery under oral tracheal intubation general anesthesia in 2 431 patients, and it happened in 0.67 days (0-2 days) after the operation. There were 3 males and 6 females with a mean age of (61±5) years. The clinical manifestations was tongue extension deviation in 8 cases (88.9%), dysarthria in 6 cases (66.7%), dysphagia in 3 cases (33.3%), tongue stiffness in 3 cases (33.3%), hoarseness in voice and pharyngeal discomfort in 1 case (11.1%). All of the symptoms were relieved in all patients at 3 months postoperative follow-up. In neutral position, the mandibular-vertebral distance was (7.19±3.96) mm in the control group and it was (3.98±3.01) mm in Tapia group (P<0.05). From neutral position to hyperflexion position, the distance between mandible and vertebral body was reduced from 3.98 mm to 1.95 mm in the Tapia group and decreased for 51.0%, and it decreased from 7.19 mm for 31.8% to 4.90 mm in the control group. Conclusions: The incidence of Tapia syndrome after posterior cervical spine surgery under oral tracheal intubation general anesthesia is low. A smaller mandibular-vertebral distance on pre-operative cervical spine lateral view radiograph maybe a risk factor for Tapia syndrome after posterior cervical surgery under oral tracheal intubation general anesthesia.
Collapse
Affiliation(s)
- F J Meng
- Department of Orthopaedics, Peking University Third Hospital, Engineering Research Center of Bone and Joint Precision Medicine, Ministry of Education, Beijing Key Laboratory of Spinal Disease Research, Beijing 100191, China (Meng Fanjun works in the Second Department of Orthopaedics, Baoding NO.1 Central Hospital, Baoding 071000, China)
| | - J Y Jin
- Department of Orthopaedics, Peking University Third Hospital, Engineering Research Center of Bone and Joint Precision Medicine, Ministry of Education, Beijing Key Laboratory of Spinal Disease Research, Beijing 100191, China (Meng Fanjun works in the Second Department of Orthopaedics, Baoding NO.1 Central Hospital, Baoding 071000, China)
| | - Y Sun
- Department of Orthopaedics, Peking University Third Hospital, Engineering Research Center of Bone and Joint Precision Medicine, Ministry of Education, Beijing Key Laboratory of Spinal Disease Research, Beijing 100191, China (Meng Fanjun works in the Second Department of Orthopaedics, Baoding NO.1 Central Hospital, Baoding 071000, China)
| | - Y B Zhao
- Department of Orthopaedics, Peking University Third Hospital, Engineering Research Center of Bone and Joint Precision Medicine, Ministry of Education, Beijing Key Laboratory of Spinal Disease Research, Beijing 100191, China (Meng Fanjun works in the Second Department of Orthopaedics, Baoding NO.1 Central Hospital, Baoding 071000, China)
| | - F F Zhou
- Department of Orthopaedics, Peking University Third Hospital, Engineering Research Center of Bone and Joint Precision Medicine, Ministry of Education, Beijing Key Laboratory of Spinal Disease Research, Beijing 100191, China (Meng Fanjun works in the Second Department of Orthopaedics, Baoding NO.1 Central Hospital, Baoding 071000, China)
| | - X Chen
- Department of Orthopaedics, Peking University Third Hospital, Engineering Research Center of Bone and Joint Precision Medicine, Ministry of Education, Beijing Key Laboratory of Spinal Disease Research, Beijing 100191, China (Meng Fanjun works in the Second Department of Orthopaedics, Baoding NO.1 Central Hospital, Baoding 071000, China)
| | - Y Z Diao
- Department of Orthopaedics, Peking University Third Hospital, Engineering Research Center of Bone and Joint Precision Medicine, Ministry of Education, Beijing Key Laboratory of Spinal Disease Research, Beijing 100191, China (Meng Fanjun works in the Second Department of Orthopaedics, Baoding NO.1 Central Hospital, Baoding 071000, China)
| |
Collapse
|
12
|
Kerioui M, Desmée S, Mercier F, Lin A, Wu B, Jin JY, Shen X, Le Tourneau C, Bruno R, Guedj J. Assessing the impact of organ-specific lesion dynamics on survival in patients with recurrent urothelial carcinoma treated with atezolizumab or chemotherapy. ESMO Open 2021; 7:100346. [PMID: 34954496 PMCID: PMC8718952 DOI: 10.1016/j.esmoop.2021.100346] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 09/23/2021] [Accepted: 11/22/2021] [Indexed: 12/26/2022] Open
Abstract
Background Tumor dynamics typically rely on the sum of the longest diameters (SLD) of target lesions, and ignore heterogeneity in individual lesion dynamics located in different organs. Patients and methods Here we evaluated the benefit of analyzing lesion dynamics in different organs to predict survival in 900 patients with metastatic urothelial carcinoma treated with atezolizumab or chemotherapy (IMvigor211 trial). Results Lesion dynamics varied largely across organs, with lymph nodes and lung lesions showing on average a better response to both treatments than those located in the liver and locoregionally. A benefit of atezolizumab was observed on lung and liver lesion dynamics that was attributed to a longer duration of treatment effect as compared to chemotherapy (P value = 0.043 and 0.001, respectively). The impact of lesion dynamics on survival, assessed by a joint model, varied greatly across organs, irrespective of treatment. Liver and locoregional lesion dynamics had a large impact on survival, with an increase of 10 mm of the lesion size increasing the instantaneous risk of death by 12% and 10%, respectively. In comparison, lymph nodes and lung lesions had a lower impact, with a 10-mm increase in the lesion size increasing the instantaneous risk of death by 7% and 5%, respectively. Using our model, we could anticipate the benefit of atezolizumab over chemotherapy as early as 6 months before the end of the study, which is 3 months earlier than a similar model only relying on SLD. Conclusion We showed the interest of organ-level tumor follow-up to better understand and anticipate the treatment effect on survival. Nine hundred metastatic urothelial carcinoma patients from the IMvigor211 phase III trial were treated with atezolizumab versus chemotherapy. A total of 4489 organ-specific measurements were made: 1544 measurements in the lymph, 999 in the lung, 691 in the liver, and 559 locoregionally. Longer treatment effect was observed in the lung (P value = 0.043) and liver (P = 0.001) lesions under atezolizumab compared to chemotherapy. Those with a 10-mm growth of liver lesion had their instantaneous risk of death increased by 12%, compared to 5% in the lung. Treatment effect on overall survival could be predicted based on early organ-specific tumor data 6 months after last patient inclusion.
Collapse
Affiliation(s)
- M Kerioui
- Université de Paris, INSERM IAME, Paris, France; Université de Tours, Université de Nantes, INSERM SPHERE, UMR 1246, Tours, France; Institut Roche, Boulogne-Billancourt, France; Clinical Pharmacology, Genentech/Roche, Paris, France.
| | - S Desmée
- Université de Tours, Université de Nantes, INSERM SPHERE, UMR 1246, Tours, France
| | - F Mercier
- F. Hoffmann-La Roche AG, Biostatistics, Basel, Switzerland
| | - A Lin
- Clinical Pharmacology, Genentech Inc., South San Francisco, USA
| | - B Wu
- Clinical Pharmacology, Genentech Inc., South San Francisco, USA
| | - J Y Jin
- Clinical Pharmacology, Genentech Inc., South San Francisco, USA
| | - X Shen
- Product Development, Genentech Inc., South San Francisco, USA
| | - C Le Tourneau
- Department of Drug Development and Innovation (D3i), INSERM U900 Research Unit, Paris-Saclay University, Paris & Saint-Cloud, France
| | - R Bruno
- Clinical Pharmacology, Genentech/Roche, Marseille, France
| | - J Guedj
- Université de Paris, INSERM IAME, Paris, France
| |
Collapse
|
13
|
Jin JY, Su D. [Driver variations in tumor classical signaling pathways and treatment response of immune checkpoint inhibitors]. Zhonghua Bing Li Xue Za Zhi 2021; 50:840-844. [PMID: 34405632 DOI: 10.3760/cma.j.cn112151-20210120-00063] [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)
- J Y Jin
- Department of Pathology, the Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Hangzhou 310022, China
| | - D Su
- Department of Pathology, the Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Hangzhou 310022, China
| |
Collapse
|
14
|
Zhao Z, Li KP, Wang YY, Pei L, Guan ZW, Jin JY, Zhu J, Zhang JL, Huang F. [The prediction of disease progression by 18Fluorodeoxyglucose-positron emission computed tomography/CT in patients with dermatomyositis and interstitial lung disease]. Zhonghua Nei Ke Za Zhi 2021; 60:661-664. [PMID: 34619844 DOI: 10.3760/cma.j.cn112138-20201119-00954] [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: 06/13/2023]
Abstract
To investigate the predictive value of [18F]fluorodeoxyglucose-positron emission computed tomography(PET)/CT for disease progression in patients with dermatomyositis (DM) and interstitial lung diseases (ILD). Sixty-seven DM patients who underwent [18F] FDG-PET/CT imaging were retrospectively analyzed from January 2012 to September 2017 at PLA General Hospital. Their clinical manifestations and imaging characteristics were recorded. Compared with those chronically progressed (C-ILD), patients with rapid progression (RP-ILD) had significantly higher erythrocyte sedimentation rate (ESR) and standardized uptake value (SUV) in lungs (P<0.05). In patients with RP-ILD, SUV in lungs was positively correlated with age, disease course, and ESR. Receiver operating characteristic curve analysis suggested that when lung SUV cut off value was 2.25, the sensitivity and specificity to predict disease progression was 77.8% and 72.8%, respectively. Old age, longer disease course, low creatine kinase level, higher ESR, and high SUV are prognostic factors for DM-associated ILD.
Collapse
Affiliation(s)
- Z Zhao
- Department of Rheumatology and Immunology, PLA General Hospital, Beijing 100853, China
| | - K P Li
- Department of Rheumatology and Immunology, PLA General Hospital, Beijing 100853, China
| | - Y Y Wang
- Department of Rheumatology and Immunology, PLA General Hospital, Beijing 100853, China
| | - L Pei
- Department of Rheumatology and Immunology, PLA General Hospital, Beijing 100853, China
| | - Z W Guan
- Department of Nuclear Medicine, PLA General Hospital, Beijing 100853, China
| | - J Y Jin
- Department of Rheumatology and Immunology, PLA General Hospital, Beijing 100853, China
| | - J Zhu
- Department of Rheumatology and Immunology, PLA General Hospital, Beijing 100853, China
| | - J L Zhang
- Department of Rheumatology and Immunology, PLA General Hospital, Beijing 100853, China
| | - F Huang
- Department of Rheumatology and Immunology, PLA General Hospital, Beijing 100853, China
| |
Collapse
|
15
|
Li JF, Yang WH, Zheng WL, Jin JY, Chen Q, Zhang LY, Sha S, Wang P. [Study on the demand of social organizations working for female sex workers regarding project management and capacity building of HIV prevention and treatment]. Zhonghua Liu Xing Bing Xue Za Zhi 2021; 42:1124-1127. [PMID: 34814519 DOI: 10.3760/cma.j.cn112338-20210312-00202] [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: 06/13/2023]
Abstract
Objective: To understand the capacity building needs on social organizations providing HIV prevention and treatment services for female sex workers (FSW). Methods: Questionnaires and interview were conducted with the heads of social organizations participating in China AIDS Fund for Non-Governmental Organizations (CAFNGO) project 2017-2018. Data from the CAFNGO's information system were compiled and analyzed using Excel 2016 and SPSS 25.0 software. The distribution of social organizations, availability of funds, and social organizations' needs for capacity building were analyzed. Results: Nationwide, 184 social organizations were involved in project '2017-2018 CAFNGO's FSW field work'. Out of which, 156 answers were valid. Social organizations that participated in the implementation of fund projects were mainly concentrated in the western region, accounting for 44.0% (81/184), with Sichuan, Guangxi, and Yunnan being the majority. However, the eastern part received the most financial support. Social organizations expressed the highest demand for project data collection and analysis, accounting for 68.6% (107/156). Items on risk analysis, response, and quality control project ranked the second, accounting for 64.1% (100/156). Results showed that statistically significant differences were seen on capacity building needs among social organization leaders with different levels of training on management of planning and finance of the project (χ2=5.78,P=0.016;χ2=8.99,P=0.003). Conclusions: Currently, the number of social organizations and the related fund provision concerning HIV prevention and control among FSWs were not consistent in China. Thus, it is necessary to encourage, guide, and support the development of social organizations and satisfy social organizations' needs on capacity-building and planning.
Collapse
Affiliation(s)
- J F Li
- Chinese Prevention Medicine Association, Beijing 100021, China
| | - W H Yang
- Chinese Prevention Medicine Association, Beijing 100021, China
| | - W L Zheng
- Chinese Prevention Medicine Association, Beijing 100021, China
| | - J Y Jin
- Chinese Prevention Medicine Association, Beijing 100021, China
| | - Q Chen
- Chinese Prevention Medicine Association, Beijing 100021, China
| | - L Y Zhang
- Chinese Prevention Medicine Association, Beijing 100021, China
| | - S Sha
- Chinese Prevention Medicine Association, Beijing 100021, China
| | - P Wang
- Chinese Prevention Medicine Association, Beijing 100021, China
| |
Collapse
|
16
|
Tan MJA, Brown NG, Chan KWK, Jin JY, Zu Kong SY, Vasudevan SG. Mutations in the cytoplasmic domain of dengue virus NS4A affect virus fitness and interactions with other non-structural proteins. J Gen Virol 2021; 101:941-953. [PMID: 32589122 DOI: 10.1099/jgv.0.001462] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
The dengue virus (DENV) replication complex is made up of its non-structural (NS) proteins and yet-to-be identified host proteins, but the molecular interactions between these proteins are not fully elucidated. In this work, we sought to uncover the interactions between DENV NS1 and its fellow NS proteins using a yeast two-hybrid (Y2H) approach, and found that domain II of NS1 binds to an N-terminal cytoplasmic fragment of NS4A. Mutations in amino acid residues 41 and 43 in this cytoplasmic region of NS4A disrupted the interaction between NS1 and the NS4A-2K-4B precursor protein. When the NS4A Y41F mutation was introduced into the context of the virus via a DENV2 infectious clone, this mutant virus exhibited impaired viral fitness and decreased infectious virus production. The NS4A Y41F mutant virus triggered a significantly muted transcriptional activation of interferon-stimulated genes compared to wild-type virus that is independent of NS4A's ability to antagonize type I interferon signalling. Taken together, we have identified a link between DENV NS1 and the cytoplasmic domain in NS4A that is important for its cellular and viral functions.
Collapse
Affiliation(s)
- Min Jie Alvin Tan
- Program in Emerging Infectious Diseases, Duke-NUS Medical School, Singapore 169857, Singapore
| | - Nancy G Brown
- Program in Emerging Infectious Diseases, Duke-NUS Medical School, Singapore 169857, Singapore
| | - Kitti Wing Ki Chan
- Program in Emerging Infectious Diseases, Duke-NUS Medical School, Singapore 169857, Singapore
| | - Jocelyn Y Jin
- Program in Emerging Infectious Diseases, Duke-NUS Medical School, Singapore 169857, Singapore
| | - Sean Yao Zu Kong
- Program in Emerging Infectious Diseases, Duke-NUS Medical School, Singapore 169857, Singapore
| | - Subhash G Vasudevan
- Program in Emerging Infectious Diseases, Duke-NUS Medical School, Singapore 169857, Singapore.,Institute for Glycomics, Griffith University, Gold Coast Campus, Queensland 4022, Australia.,Department of Microbiology and Immunology, National University of Singapore, 5 Science Drive 2, Singapore 117545, Singapore
| |
Collapse
|
17
|
Peng J, Li KP, Jin JY, Yang JS, Zhang JL. [The 478 th case: multiple myalgia with intramuscular nodules]. Zhonghua Nei Ke Za Zhi 2020; 59:485-488. [PMID: 32486593 DOI: 10.3760/cma.j.cn112138-20190705-00475] [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
A 28-year-old man was admitted to the first medical center of Chinese People's Liberation Army General Hospital because of multiple myalgia and intramuscular nodules for more than 2 months. The patient complained of dysphagia, fever and weight loss 2 months ago. Magnetic resonance imaging and biopsy revealed nodular fasciitis. Inflammatory indicators including C-reactive protein, erythrocyte sedimentation rate, platelet count and fibrinogen were slightly elevated. Urine occult blood was positive. Abdominal ultrasound revealed left hydronephrosis. Because nodular fasciitis could not explain the whole situation, a needle biopsy of intramuscular nodules was performed. Pathological examination revealed intramuscular metastatic adenocarcinoma with poor differentiation. Gastric endoscope and positron emission tomography-computed tomography confirmed the diagnosis of advanced gastric adenocarcinoma with extensive metastases of esophagus, lymph nodes, muscles, ureter and bone. Although chemotherapy was given, the patient died of disease progression six months later.
Collapse
Affiliation(s)
- J Peng
- Department of Rheumatology, The First Medical Center of Chinese People's Liberation Army General Hospital, Beijing 100853, China; Medical School of Nankai University, Tianjin 300071, China
| | - K P Li
- Department of Rheumatology, The First Medical Center of Chinese People's Liberation Army General Hospital, Beijing 100853, China
| | - J Y Jin
- Department of Rheumatology, The First Medical Center of Chinese People's Liberation Army General Hospital, Beijing 100853, China
| | - J S Yang
- Department of Rheumatology, The First Medical Center of Chinese People's Liberation Army General Hospital, Beijing 100853, China
| | - J L Zhang
- Department of Rheumatology, The First Medical Center of Chinese People's Liberation Army General Hospital, Beijing 100853, China
| |
Collapse
|
18
|
Chan KWK, Watanabe S, Jin JY, Pompon J, Teng D, Alonso S, Vijaykrishna D, Halstead SB, Marzinek JK, Bond PJ, Burla B, Torta F, Wenk MR, Ooi EE, Vasudevan SG. A T164S mutation in the dengue virus NS1 protein is associated with greater disease severity in mice. Sci Transl Med 2020; 11:11/498/eaat7726. [PMID: 31243154 DOI: 10.1126/scitranslmed.aat7726] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Revised: 10/11/2018] [Accepted: 12/03/2018] [Indexed: 12/14/2022]
Abstract
Dengue viruses cause severe and sudden human epidemics worldwide. The secreted form of the nonstructural protein 1 (sNS1) of dengue virus causes vascular leakage, a hallmark of severe dengue disease. Here, we reverse engineered the T164S mutation of NS1, associated with the severity of dengue epidemics in the Americas, into a dengue virus serotype 2 mildly infectious strain. The T164S mutant virus decreased infectious virus production and increased sNS1 production in mammalian cell lines and human peripheral blood mononuclear cells (PBMCs) without affecting viral RNA replication. Gene expression profiling of 268 inflammation-associated human genes revealed up-regulation of genes induced in response to vascular leakage. Infection of the mosquito vector Aedes aegypti with the T164S mutant virus resulted in increased viral load in the mosquito midgut and higher sNS1 production compared to wild-type virus infection. Infection of type 1 and 2 interferon receptor-deficient AG129 mice with the T164S mutant virus resulted in severe disease coupled with increased complement activation, tissue inflammation, and more rapid mortality compared to AG129 mice infected with wild-type virus. Molecular dynamics simulations predicted that mutant sNS1 formed stable dimers similar to the wild-type protein, whereas the hexameric mutant sNS1 was predicted to be unstable. Immunoaffinity-purified sNS1 from T164S mutant virus-infected mammalian cells was associated with different lipid classes compared to wild-type sNS1. Treatment of human PBMCs with sNS1 purified from T164S mutant virus resulted in a twofold higher production of proinflammatory cytokines, suggesting a mechanism for how mutant sNS1 may cause more severe dengue disease.
Collapse
Affiliation(s)
- Kitti Wing Ki Chan
- Program in Emerging Infectious Diseases, Duke-NUS Medical School, 8 College Road, Singapore 169857, Singapore.,Department of Microbiology and Immunology, 5 Science Drive 2, Singapore 117545, Singapore
| | - Satoru Watanabe
- Program in Emerging Infectious Diseases, Duke-NUS Medical School, 8 College Road, Singapore 169857, Singapore
| | - Jocelyn Y Jin
- Program in Emerging Infectious Diseases, Duke-NUS Medical School, 8 College Road, Singapore 169857, Singapore
| | - Julien Pompon
- Program in Emerging Infectious Diseases, Duke-NUS Medical School, 8 College Road, Singapore 169857, Singapore.,MIVEGEC, UMR IRD 224-CNRS5290 Université de Montpellier, Montpellier, France
| | - Don Teng
- Biomedicine Discovery Institute and Department of Microbiology, Monash University, Melbourne, Victoria 3800, Australia
| | - Sylvie Alonso
- Department of Microbiology and Immunology, 5 Science Drive 2, Singapore 117545, Singapore.,Immunology Programme, Life Science Institute, National University of Singapore, Singapore 117456, Singapore
| | - Dhanasekaran Vijaykrishna
- Program in Emerging Infectious Diseases, Duke-NUS Medical School, 8 College Road, Singapore 169857, Singapore.,Biomedicine Discovery Institute and Department of Microbiology, Monash University, Melbourne, Victoria 3800, Australia
| | - Scott B Halstead
- Department of Preventive Medicine and Biometrics, Uniformed Services University of the Health Sciences, Bethesda, MD 20817, USA
| | - Jan K Marzinek
- Bioinformatics Institute (A*STAR), 30 Biopolis St., Singapore 138671, Singapore
| | - Peter J Bond
- Bioinformatics Institute (A*STAR), 30 Biopolis St., Singapore 138671, Singapore
| | - Bo Burla
- Singapore Lipidomics Incubator (SLING), Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore
| | - Federico Torta
- Singapore Lipidomics Incubator (SLING), Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore
| | - Markus R Wenk
- Singapore Lipidomics Incubator (SLING), Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore
| | - Eng Eong Ooi
- Program in Emerging Infectious Diseases, Duke-NUS Medical School, 8 College Road, Singapore 169857, Singapore.,Department of Microbiology and Immunology, 5 Science Drive 2, Singapore 117545, Singapore
| | - Subhash G Vasudevan
- Program in Emerging Infectious Diseases, Duke-NUS Medical School, 8 College Road, Singapore 169857, Singapore. .,Department of Microbiology and Immunology, 5 Science Drive 2, Singapore 117545, Singapore
| |
Collapse
|
19
|
Rotte A, Jin JY, Lemaire V. Mechanistic overview of immune checkpoints to support the rational design of their combinations in cancer immunotherapy. Ann Oncol 2019; 29:71-83. [PMID: 29069302 DOI: 10.1093/annonc/mdx686] [Citation(s) in RCA: 217] [Impact Index Per Article: 43.4] [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: 12/18/2022] Open
Abstract
Checkpoint receptor blockers, known to act by blocking the pathways that inhibit immune cell activation and stimulate immune responses against tumor cells, have been immensely successful in the treatment of cancer. Among several checkpoint receptors of immune cells, cytotoxic T-lymphocyte-associated protein-4 (CTLA-4), programmed cell death protein-1 (PD-1), T-cell immunoglobulin and ITIM domain (TIGIT), T-cell immunoglobulin-3 (TIM-3) and lymphocyte activation gene 3 (LAG-3) are the most commonly targeted checkpoints for cancer immunotherapy. Six drugs including one CTLA-4 blocker (ipilimumab), two PD-1 blockers (nivolumab and pembrolizumab) and three PD-L1 blockers (atezolizumab, avelumab and durvalumab) are approved for the treatment of different types of cancers including both solid tumors such as melanoma, lung cancer, head and neck cancer, bladder cancer and Merkel cell cancer as well as hematological tumors such as classic Hodgkin's lymphoma. The main problem with checkpoint blockers is that only a fraction of patients respond to the therapy. Insufficient immune activation is considered as one of the main reason for low response rates and combination of checkpoint blockers has been proposed to increase the response rates. The combination of checkpoint blockers was successful in melanoma but had significant adverse events. A combination that is selected based on the mechanistic differences between checkpoints and the differences in expression of checkpoints and their ligands in the tumor microenvironment could have a synergistic effect in a given cancer subtype and also have a manageable safety profile. This review aims to help in design of optimal checkpoint blocker combinations by discussing the mechanistic details and outlining the subtle differences between major checkpoints targeted for cancer immunotherapy.
Collapse
Affiliation(s)
- A Rotte
- Department of Clinical Pharmacology, Genentech Research and Early Development, South San Francisco, USA
| | - J Y Jin
- Department of Clinical Pharmacology, Genentech Research and Early Development, South San Francisco, USA
| | - V Lemaire
- Department of Clinical Pharmacology, Genentech Research and Early Development, South San Francisco, USA
| |
Collapse
|
20
|
Lu D, Gillespie WR, Girish S, Agarwal P, Li C, Hirata J, Chu YW, Kagedal M, Leon L, Maiya V, Jin JY. Time-to-Event Analysis of Polatuzumab Vedotin-Induced Peripheral Neuropathy to Assist in the Comparison of Clinical Dosing Regimens. CPT Pharmacometrics Syst Pharmacol 2017; 6:401-408. [PMID: 28544534 PMCID: PMC5488137 DOI: 10.1002/psp4.12192] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Revised: 02/03/2017] [Accepted: 03/08/2017] [Indexed: 01/08/2023]
Abstract
Polatuzumab vedotin, an antibody-drug conjugate containing monomethyl auristatin E, was associated with an incidence of grade ≥2 peripheral neuropathy (PN) of 55-72% in patients with indolent non-Hodgkin lymphoma in a phase II study, when dosed 1.8-2.4 mg/kg every 3 weeks until progression or for a maximum of 17 cycles. To quantify the correlation of conjugate exposure and treatment duration with PN risk, a time-to-event model was developed using data from phase I and II studies. The model suggested that PN risk increased with conjugate exposure and treatment cycles, and a trend for increased risk with body weight and albumin concentration. When capping the treatment duration to six to eight cycles, the risk ratio of a dose of 2.4 mg/kg vs. 1.8 mg/kg was ≥1.29; the predicted incidence of grade ≥2 PN at 1.8-2.4 mg/kg dose levels was 17.8-37.2%, which is comparable with other antimicrotubule agents for lymphoma treatment.
Collapse
Affiliation(s)
- D Lu
- Genentech Inc., South San Francisco, California, USA
| | - W R Gillespie
- Metrum Research Group LLC, Tariffville, Connecticut, USA
| | - S Girish
- Genentech Inc., South San Francisco, California, USA
| | - P Agarwal
- Genentech Inc., South San Francisco, California, USA
| | - C Li
- Genentech Inc., South San Francisco, California, USA
| | - J Hirata
- Genentech Inc., South San Francisco, California, USA
| | - Y-W Chu
- Genentech Inc., South San Francisco, California, USA
| | - M Kagedal
- Genentech Inc., South San Francisco, California, USA
| | - L Leon
- Genentech Inc., South San Francisco, California, USA
| | - V Maiya
- Genentech Inc., South San Francisco, California, USA
| | - J Y Jin
- Genentech Inc., South San Francisco, California, USA
| |
Collapse
|
21
|
Yoshida K, Budha N, Jin JY. Impact of physiologically based pharmacokinetic models on regulatory reviews and product labels: Frequent utilization in the field of oncology. Clin Pharmacol Ther 2017; 101:597-602. [PMID: 28074611 PMCID: PMC5414891 DOI: 10.1002/cpt.622] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2016] [Revised: 12/27/2016] [Accepted: 01/02/2017] [Indexed: 02/04/2023]
Abstract
Physiologically based pharmacokinetic (PBPK) modeling can be used to predict drug pharmacokinetics in virtual populations using models that integrate understanding of physiological systems. PBPK models have been widely utilized for predicting pharmacokinetics in clinically untested scenarios during drug applications and regulatory reviews in recent years. Here, we provide a comprehensive review of the application of PBPK in new drug application (NDA) review documents from the US Food and Drug Administration (FDA) in the past 4 years.
Collapse
Affiliation(s)
- K Yoshida
- Department of Clinical PharmacologyGenentech Research and Early DevelopmentSouth San FranciscoCaliforniaUSA
| | - N Budha
- Department of Clinical PharmacologyGenentech Research and Early DevelopmentSouth San FranciscoCaliforniaUSA
| | - JY Jin
- Department of Clinical PharmacologyGenentech Research and Early DevelopmentSouth San FranciscoCaliforniaUSA
| |
Collapse
|
22
|
Lu D, Gibiansky L, Agarwal P, Dere RC, Li C, Chu Y, Hirata J, Joshi A, Jin JY, Girish S. Integrated Two-Analyte Population Pharmacokinetic Model for Antibody-Drug Conjugates in Patients: Implications for Reducing Pharmacokinetic Sampling. CPT Pharmacometrics Syst Pharmacol 2016; 5:665-673. [PMID: 27863168 PMCID: PMC5192970 DOI: 10.1002/psp4.12137] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Revised: 07/26/2016] [Accepted: 09/10/2016] [Indexed: 02/05/2023]
Abstract
An integrated pharmacokinetics (PK) model that simultaneously describes concentrations of total antibody (Tab) and antibody‐conjugated monomethyl auristatin E (acMMAE) following administration of monomethyl auristatin E (MMAE)‐containing antibody–drug conjugates (ADCs) was developed based on phase I PK data with extensive sampling for two ADCs. Two linear two‐compartment models that shared all parameters were used to describe the PK of Tab and acMMAE, except that the deconjugation rate was an additional clearance pathway included in the acMMAE PK model compared to Tab. Further, the model demonstrated its ability to predict Tab concentrations and PK parameters based on observed acMMAE PK and various reduced or eliminated Tab PK sampling schemes of phase II data. Thus, this integrated model allows for the reduction of Tab PK sampling in late‐phase clinical development without compromising Tab PK characterization.
Collapse
Affiliation(s)
- D Lu
- Genentech IncSouth San FranciscoCaliforniaUSA
| | | | - P Agarwal
- Genentech IncSouth San FranciscoCaliforniaUSA
| | - RC Dere
- Genentech IncSouth San FranciscoCaliforniaUSA
| | - C Li
- Genentech IncSouth San FranciscoCaliforniaUSA
| | - Y‐W Chu
- Genentech IncSouth San FranciscoCaliforniaUSA
| | - J Hirata
- Genentech IncSouth San FranciscoCaliforniaUSA
| | - A Joshi
- Genentech IncSouth San FranciscoCaliforniaUSA
| | - JY Jin
- Genentech IncSouth San FranciscoCaliforniaUSA
| | - S Girish
- Genentech IncSouth San FranciscoCaliforniaUSA
| |
Collapse
|
23
|
Li KP, Zhang JL, Zhu J, Jin JY, Zhao W, Huang F. [Septic arthritis in systemic lupus erythematosus: a retrospective analysis of 6 cases]. Zhonghua Nei Ke Za Zhi 2016; 55:631-633. [PMID: 27480559 DOI: 10.3760/cma.j.issn.0578-1426.2016.08.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Base on the clinical characteristics of septic arthritis in a group of systemic lupus erythematosus patients, this study has found out that high systemic lupus erythematosus disease activity index, leucopenia, high cumulative dose of glucocorticoid, methylprednisolone intravenous pulse therapy and joint cavity puncture were closely correlated with septic arthritis. Once septic arthritis is suspected, culture specimens should be collected and appropriate antibiotics are suggested immediately. Also, surgical drainage is a very useful approach.
Collapse
Affiliation(s)
- K P Li
- Department of Rheumatology, Chinese PLA General Hospital, Beijing 100853, China
| | | | | | | | | | | |
Collapse
|
24
|
Sun YY, Su XH, Jin JY, Zhou ZQ, Sun SS, Wen JF, Kang DG, Lee HS, Cho KW, Jin SN. Rumex acetosa L. induces vasorelaxation in rat aorta via activation of PI3-kinase/Akt- AND Ca(2+)-eNOS-NO signaling in endothelial cells. J Physiol Pharmacol 2015; 66:907-915. [PMID: 26769840] [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] [Received: 05/02/2015] [Accepted: 10/15/2015] [Indexed: 06/05/2023]
Abstract
Rumex acetosa L. (RA) (Polygonaceae) is an important traditional Chinese medicine (TCM) commonly used in clinic for a long history in China and the aerial parts of RA has a wide variety of pharmacological actions such as diuretic, anti-hypertensive, anti-oxidative, and anti-cancer effects. However, the mechanisms involved are to be defined. The purpose of the present study was to evaluate the vasorelaxant effect and define the mechanism of action of the ethanol extract of Rumex acetosa L. (ERA) in rat aorta. ERA was examined for its vascular relaxant effect in isolated phenylephrine-precontracted rat thoracic aorta and its acute effects on arterial blood pressure. In addition, the roles of the nitric oxide synthase (NOS)-nitric oxide (NO) signaling in the ERA-induced effects were tested in human umbilical vein endothelial cells (HUVECs). The phosphorylation levels of Akt and eNOS were assessed by Western blot analysis in the cultured HUVECs. ERA induced endothelium-dependent vasorelaxation. The ERA-induced vasorelaxation was abolished by L-NAME (an NOS inhibitor) or ODQ (a sGC inhibitor), but not by indomethacin. Inhibition of PI3-kinase/Akt signaling pathway markedly reduced the ERA-induced vasorelaxation. In HUVECs, ERA increased NO formation in a dose-dependent manner, which was inhibited by L-NAME and by removing extracellular Ca(2+). In addition, ERA promoted phosphorylation of Akt and eNOS, which was prevented by wortmannin and LY294002, indicating that ERA induces eNOS phosphorylation through the PI3-kinase/Akt pathway. Further, in anesthetized rats, intravenously administered ERA decreased arterial blood pressure in a dose-dependent manner through an activation of the NOS-NO system. In summary, the ERA- induced vasorelaxation was dependent on endothelial integrity and NO production, and was mediated by activation of both the endothelial PI3-kinase/Akt- and Ca(2+)-eNOS-NO signaling and muscular NO-sGC-cGMP signaling.
Collapse
Affiliation(s)
- Y Y Sun
- School of Pharmacy, Taishan Medical University, Taian, Shandong, China
| | - X H Su
- School of Pharmacy, Taishan Medical University, Taian, Shandong, China
| | - J Y Jin
- Department of Pharmacology, Qingdao University Medical School, Qingdao, Shandong, China
| | - Z Q Zhou
- School of Pharmacy, Taishan Medical University, Taian, Shandong, China
| | - S S Sun
- School of Pharmacy, Taishan Medical University, Taian, Shandong, China
| | - J F Wen
- Institute of Atherosclerosis, Key Laboratory of Atherosclerosis in Universities of Shandong, Taishan Medical University, Taian, Shandong, China.
| | - D G Kang
- Professional Graduate School of Oriental Medicine, Wonkwang University, Iksan, Jeonbuk, Korea
| | - H S Lee
- Professional Graduate School of Oriental Medicine, Wonkwang University, Iksan, Jeonbuk, Korea
| | - K W Cho
- Institute of Atherosclerosis, Key Laboratory of Atherosclerosis in Universities of Shandong, Taishan Medical University, Taian, Shandong, China
| | - S N Jin
- School of Pharmacy, Taishan Medical University, Taian, Shandong, China.
| |
Collapse
|
25
|
Lu T, Wang B, Gao Y, Dresser M, Graham RA, Jin JY. Semi-Mechanism-Based Population Pharmacokinetic Modeling of the Hedgehog Pathway Inhibitor Vismodegib. CPT Pharmacometrics Syst Pharmacol 2015; 4:680-9. [PMID: 26783504 PMCID: PMC4716579 DOI: 10.1002/psp4.12039] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/14/2015] [Accepted: 09/09/2015] [Indexed: 12/21/2022]
Abstract
Vismodegib, approved for the treatment of advanced basal cell carcinoma, has shown unique pharmacokinetic (PK) nonlinearity and binding to α1-acid glycoprotein (AAG) in humans. A semi-mechanism-based population pharmacokinetic (PopPK) model was developed from a meta-dataset of 225 subjects enrolled in five clinical studies to quantitatively describe the clinical PK of vismodegib and identify sources of interindividual variability. Total and unbound vismodegib were analyzed simultaneously, together with time-varying AAG data. The PK of vismodegib was adequately described by a one-compartment model with first-order absorption, first-order elimination of unbound drug, and saturable binding to AAG with fast-equilibrium. The variability of total vismodegib concentration at steady-state was predominantly explained by the range of AAG level. The impact of AAG on unbound concentration was clinically insignificant. Various approaches were evaluated for model validation. The semi-mechanism-based PopPK model described herein provided insightful information on the nonlinear PK and has been utilized for various clinical applications.
Collapse
Affiliation(s)
- T Lu
- Genentech, Inc. South San Francisco California USA
| | - B Wang
- Genentech, Inc. South San Francisco California USA
| | - Y Gao
- Quantitative Solutions, Inc. Menlo Park California USA
| | - M Dresser
- Genentech, Inc. South San Francisco California USA
| | - R A Graham
- Genentech, Inc. South San Francisco California USA
| | - J Y Jin
- Genentech, Inc. South San Francisco California USA
| |
Collapse
|
26
|
Le KN, Gibiansky L, van Lookeren Campagne M, Good J, Davancaze T, Loyet KM, Morimoto A, Strauss EC, Jin JY. Population Pharmacokinetics and Pharmacodynamics of Lampalizumab Administered Intravitreally to Patients With Geographic Atrophy. CPT Pharmacometrics Syst Pharmacol 2015; 4:595-604. [PMID: 26535160 PMCID: PMC4625864 DOI: 10.1002/psp4.12031] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/29/2015] [Accepted: 08/11/2015] [Indexed: 01/01/2023]
Abstract
Intravitreally administered lampalizumab is an investigational complement inhibitor directed against complement factor D (CFD) for the treatment of geographic atrophy (GA) secondary to age-related macular degeneration. We sought to develop an integrated ocular and systemic pharmacokinetic/pharmacodynamic model for lampalizumab in patients with GA using the data from the clinical phase I and II studies. The kinetics of lampalizumab and CFD disposition were well described by the combined ocular/serum target-mediated drug disposition model using a quasi-steady-state approximation. This model takes into account the drug, target, and drug-target complex clearance, their transfer rates between ocular and serum compartments, and turnover kinetics of CFD. The constructed model provided a prediction of target occupancy in ocular tissues and supported that the two dosing regimens (10 mg q4w and 10 mg q6w) selected for the phase III studies are expected to be efficacious and able to achieve near-complete target engagement in the vitreous humor.
Collapse
Affiliation(s)
- K N Le
- Genentech South San Francisco, California, USA
| | | | | | - J Good
- Genentech South San Francisco, California, USA
| | - T Davancaze
- Genentech South San Francisco, California, USA
| | - K M Loyet
- Genentech South San Francisco, California, USA
| | - A Morimoto
- Genentech South San Francisco, California, USA
| | - E C Strauss
- Genentech South San Francisco, California, USA
| | - J Y Jin
- Genentech South San Francisco, California, USA
| |
Collapse
|
27
|
Gandham VD, Maddala RL, Rao V, Jin JY, Epstein DL, Hall RP, Zhang JY. Effects of Y27632 on keratinocyte procurement and wound healing. Clin Exp Dermatol 2013; 38:782-6. [PMID: 23675999 DOI: 10.1111/ced.12067] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/22/2012] [Indexed: 11/29/2022]
Abstract
A number of Rho-kinase inhibitors have been developed for various clinical applications. We examined the effects of the Rho-kinase inhibitor Y27632 on keratinocyte proliferation and migration, and found that it promoted primary human keratinocyte proliferation and migration in both monolayer and skin explant cultures. In addition, topical application of Y27632 enhanced cutaneous wound closure in the majority of wounds in mice. The growth and migration effects of Y27632 appeared to be specific to keratinocytes compared with dermal fibroblasts, and required intact Jun kinase function. Y27632 seems to be a promising agent for keratinocyte procurement and wounding healing.
Collapse
Affiliation(s)
- V D Gandham
- Department of Dermatology, Duke University, Durham, NC, USA
| | | | | | | | | | | | | |
Collapse
|
28
|
Jin JY, Choi EY, Park HR, Choi JI, Choi IS, Kim SJ. Isorhamnetin inhibits Prevotella intermedia lipopolysaccharide-induced production of interleukin-6 in murine macrophages via anti-inflammatory heme oxygenase-1 induction and inhibition of nuclear factor-κB and signal transducer and activator of transcription 1 activation. J Periodontal Res 2013; 48:687-95. [PMID: 23441850 DOI: 10.1111/jre.12054] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/03/2013] [Indexed: 11/28/2022]
Abstract
BACKGROUND AND OBJECTIVE Interleukin-6 (IL-6) is a key proinflammatory cytokine that has been considered to be important in the pathogenesis of periodontal disease. Therefore, host-modulatory agents directed at inhibiting IL-6 appear to be beneficial in terms of attenuating periodontal disease progression and potentially improving disease susceptibility. In the current study, we investigated the effect of the flavonoid isorhamnetin on the production of IL-6 in murine macrophages stimulated with lipopolysaccharide (LPS) from Prevotella intermedia, a pathogen implicated in inflammatory periodontal disease, and its mechanisms of action. MATERIAL AND METHODS Lipopolysaccharide from P. intermedia ATCC 25611 was isolated using the standard hot phenol-water method. Culture supernatants were collected and assayed for IL-6. We used real-time PCR to quantify IL-6 and heme oxygenase-1 (HO-1) mRNA expression. The expression of HO-1 protein and the levels of signaling proteins were monitored using immunoblot analyses. The DNA-binding activity of nuclear factor-κB (NF-κB) was analyzed using ELISA-based assay kits. RESULTS Isorhamnetin significantly down-regulated P. intermedia LPS-induced production of IL-6 as well as its mRNA expression in RAW264.7 cells. Isorhamnetin up-regulated the expression of HO-1 at both gene transcription and translation levels in cells stimulated with P. intermedia LPS. In addition, inhibition of HO-1 activity by tin protoporphyrin IX blocked the inhibitory effect of isorhamnetin on IL-6 production. Isorhamnetin failed to prevent LPS from activating either c-Jun N-terminal kinase or p38 pathways. Isorhamnetin did not inhibit NF-κB transcriptional activity at the level of inhibitory κB-α degradation. Isorhamnetin suppressed NF-κB signaling through inhibition of nuclear translocation and DNA binding activity of NF-κB p50 subunit and attenuated signal transducer and activator of transcription 1 signaling. CONCLUSION Although further research is required to clarify the detailed mechanism of action, we propose that isorhamnetin may contribute to blockade of the host-destructive processes mediated by IL-6 and could be a highly efficient modulator of the host response in the treatment of inflammatory periodontal disease. Further research in animal models of periodontitis is required to better evaluate, the potential of isorhamnetin as a novel agent for treating periodontal disease.
Collapse
Affiliation(s)
- J Y Jin
- Department of Biological Science, College of Medical and Life Sciences, Silla University, Busan, Korea
| | | | | | | | | | | |
Collapse
|
29
|
Budha NR, Frymoyer A, Smelick GS, Jin JY, Yago MR, Dresser MJ, Holden SN, Benet LZ, Ware JA. Drug absorption interactions between oral targeted anticancer agents and PPIs: is pH-dependent solubility the Achilles heel of targeted therapy? Clin Pharmacol Ther 2012; 92:203-13. [PMID: 22739140 DOI: 10.1038/clpt.2012.73] [Citation(s) in RCA: 225] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
A majority of the novel orally administered, molecularly targeted anticancer therapies are weak bases that exhibit pH-dependent solubility, and suppression of gastric acidity with acid-reducing agents could impair their absorption. In addition, a majority of cancer patients frequently take acid-reducing agents to alleviate symptoms of gastroesophageal reflux disease, thereby raising the potential for a common but underappreciated drug-drug interaction (DDI) that could decrease the exposure of anticancer medication and result in subsequent failure of therapy. This article is a review of the available clinical literature describing the extent of the interaction between 15 orally administered, small-molecule targeted anticancer therapies and acid-reducing agents. The currently available clinical data suggest that the magnitude of this DDI is largest for compounds whose in vitro solubility varies over the pH range 1-4. This range represents the normal physiological gastric acidity (pH ~1) and gastric acidity while on an acid-reducing agent (pH ~4).
Collapse
Affiliation(s)
- N R Budha
- Department of Clinical Pharmacology, Genentech, South San Francisco, California, USA
| | | | | | | | | | | | | | | | | |
Collapse
|
30
|
Park JH, Jin JY, Baek WK, Park SH, Sung HY, Kim YK, Lee J, Song DK. Ambivalent role of gallated catechins in glucose tolerance in humans: a novel insight into non-absorbable gallated catechin-derived inhibitors of glucose absorption. J Physiol Pharmacol 2009; 60:101-109. [PMID: 20065503] [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] [Received: 10/20/2008] [Accepted: 11/06/2009] [Indexed: 05/28/2023]
Abstract
Prolonged postprandial hyperglycemia is a detrimental factor for type 2 diabetes and obesity. The benefit of green tea extract (GTE) consumption still requires confirmation. We report the effects of circulating green tea catechins on blood glucose and insulin levels. Oral glucose loading 1 h after GTE ingestion in humans led to higher blood glucose and insulin levels than in control subjects. Gallated catechins were required for these effects, although within the intestinal lumen they have been known to decrease glucose and cholesterol absorption. Treatment with epigallocatechin-3-gallate hindered 2-deoxyglucose uptake into liver, fat, pancreatic beta-cell, and skeletal muscle cell lines. The glucose intolerance was ameliorated by gallated catechin-deficient GTE or GTE mixed with polyethylene glycol, which was used as an inhibitor of intestinal absorption of gallated catechins. These findings may suggest that the gallated catechin when it is in the circulation elevates blood glucose level by blocking normal glucose uptake into the tissues, resulting in secondary hyperinsulinemia, whereas it decreases glucose entry into the circulation when they are inside the intestinal lumen. These findings encourage the development of non-absorbable derivatives of gallated catechins for preventative treatment of type 2 diabetes and obesity, which would specifically induce only the positive luminal effect.
Collapse
Affiliation(s)
- J H Park
- Department of Physiology and Chronic Disease Research Center, Daegu, Korea
| | | | | | | | | | | | | | | |
Collapse
|
31
|
Park SJ, Kim M, Kim NH, Oh MK, Cho JK, Jin JY, Kim IS. Auranofin promotes retinoic acid- or dihydroxyvitamin D3-mediated cell differentiation of promyelocytic leukaemia cells by increasing histone acetylation. Br J Pharmacol 2008; 154:1196-205. [PMID: 18500361 DOI: 10.1038/bjp.2008.197] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND AND PURPOSE To investigate the molecular mechanism for the effect of auranofin on the induction of cell differentiation, the cellular events associated with differentiation were analysed in acute promyelocytic leukaemia (APL) cells. EXPERIMENTAL APPROACH The APL blasts from leukaemia patients and NB4 cells were cotreated with auroanofin and all-trans-retinoic acid (ATRA) at suboptimal concentration. The HL-60 cells were treated with auroanofin and a subeffective dose of 1alpha,25-dihydroxyvitamin D3 (1,25(OH)2 vit D3) in combination. The effect of auroanofin was investigated on histone acetylation at the promoter of differentiation-associated genes and expression of cell cycle regulators. KEY RESULTS Treatment with auroanofin and ATRA cooperatively induced granulocytic differentiation of fresh APL blasts isolated from patients and NB4 cells. The combined treatment also increased reorganization of nuclear PML bodies and histone acetylation at the promoter of the RARbeta2 gene. Auroanofin also promoted monocytic differentiation of the HL-60 cells triggered by subeffective concentration of 1,25(OH)2 vit D3. The combined treatment of auroanofin and 1,25(OH)2 vit D3 stimulated histone acetylation at p21 promoters and increased the accumulation of cells in the G0/G1 phase. Consistent with this, the expressions of p21, p27 and PTEN were increased and the levels of cyclin A, Cdk2 and Cdk4 were decreased. Furthermore, the hypophosphorylated form of pRb was markedly increased in cotreated cells. CONCLUSIONS AND IMPLICATIONS These findings indicate that auroanofin in combination with low doses of either ATRA or 1,25(OH)2 vit D3 promotes APL cell differentiation by enhancing histone acetylation and the expression of differentiation-associated genes.
Collapse
Affiliation(s)
- S J Park
- 1Department of Natural Sciences, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | | | | | | | | | | | | |
Collapse
|
32
|
Zhou L, Li CJ, Wang Y, Xia W, Yao B, Jin JY, Gui JF. Identification and characterization of a MBP isoform specific to hypothalamus in orange-spotted grouper (Epinephelus coioides). J Chem Neuroanat 2007; 34:47-59. [PMID: 17513086 DOI: 10.1016/j.jchemneu.2007.03.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2006] [Revised: 03/30/2007] [Accepted: 03/31/2007] [Indexed: 11/30/2022]
Abstract
Myelin basic protein (MBP), as a major component of the myelin sheath, has been revealed to play an important role in forming and maintaining myelin structure in vertebrate nervous system. In teleost, hypothalamus is an instinctive brain center and plays significant roles in many physiological functions, such as energy metabolism, growth, reproduction, and stress response. In comparison with other MBP identified in vertebrates, a smallest MBP is cloned and identified from the orange-spotted grouper hypothalamic cDNA plasmid library in this study. RT-PCR analysis and Western blot detection indicate that the EcMBP is specific to hypothalamus, and expresses mainly in the tuberal hypothalamus in adult grouper. Immunofluorescence localization suggests that EcMBP should be expressed by oligodendrocytes, and the expressing cells should be concentrated in hypothalamus and the area surrounding hypothalamus, such as NPOpc, VC, DP, NLTm, and NDLI. The studies on EcMBP expression pattern and developmental behaviour in the brains of grouper embryos and larvae reveal that the EcMBP-expressing cells are only limited in a defined set of cells on the border of hypothalamus, and suggest that the EcMBP-expressing cells might be a subpopulation of oligodendrocyte progenitor cells. This study not only identifies a smallest MBP isoform specific to hypothalamus that can be used as a molecular marker of oligodendrocytes in fish, but also provides new insights for MBP evolution and cellular distribution.
Collapse
Affiliation(s)
- L Zhou
- State Key Laboratory of Freshwater Ecology and Biotechnology, Wuhan Center for Developmental Biology, Institute of Hydrobiology, Chinese Academy of Sciences, Graduate School of the Chinese Academy of Sciences, Wuhan, China
| | | | | | | | | | | | | |
Collapse
|
33
|
Yin XJ, Lee YH, Jin JY, Kim NH, Kong IK. Nuclear and microtubule remodeling and in vitro development of nuclear transferred cat oocytes with skin fibroblasts of the domestic cat (Felis silvestris catus) and leopard cat (Prionailurus bengalensis). Anim Reprod Sci 2006; 95:307-15. [PMID: 16310987 DOI: 10.1016/j.anireprosci.2005.10.009] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2005] [Revised: 10/21/2005] [Accepted: 10/21/2005] [Indexed: 11/19/2022]
Abstract
The leopard cat (Prionailurus bengalensis), a member of the felidae family, is a threatened animal in South Korea. In terms of protecting endangered felids, nuclear transfer (NT) is a potentially valuable technique for assuring the continuation of species with dwindling numbers. In the present experiment, nuclear and microtubule remodeling and the in vitro developmental potential of enucleated domestic cat oocytes reconstructed with nuclei of somatic cells from either domestic cat fibroblast (DCF) or leopard cat fibroblast (LCF) were evaluated. Microtubule aster is allocated to de-condensed chromatin following nuclear transfer (3h after activation) of fibroblast cells from both domestic and leopard cats, suggesting the introduction of a somatic cell centrosome. The transferred fibroblast nuclei formed a large, swollen, pronuclear-like structure in most reconstructed oocytes, in the cat or leopard cat. At 18h following nuclear transfer, mitosis occurred, and according to the photo (F) it appears that spindle microtubules and two asters were observed. The percentages of blastocyst formation from nuclear transfer embryos derived from domestic cat fibroblasts (4/46, 8.6%) were not significantly different than those for nuclear transfer embryos constructed with leopard cat fibroblasts (4/52, 7.6%). These results indicate that nuclear and microtubule remodeling processes and in vitro developmental ability are similar in reconstructed cat oocytes following transfer of nuclei from either domestic or leopard cats.
Collapse
Affiliation(s)
- X J Yin
- Department of Animal Science and Technology, Sunchon National University, 315 Maegok-dong, Sunchon, JeonNam Province 540-742, South Korea
| | | | | | | | | |
Collapse
|
34
|
Kim DW, Chung YJ, Lee S, Kim YJ, Chung NG, Kim JA, Oh IH, Kim TG, Kim YL, Goh HG, Kim SH, Cho B, Kim HJ, Min CK, Lee JW, Jin JY, Han CW, Kim JW, Min WS, Kim HK, Kim CC, Kim HJ. Pretransplant imatinib can improve the outcome of nonmyeloablative stem cell transplantation without increasing the morbidity in Philadelphia chromosome-positive chronic myeloid leukemia. Leukemia 2004; 18:1907-9. [PMID: 15356641 DOI: 10.1038/sj.leu.2403502] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
35
|
Kim IS, Jin JY, Lee IH, Park SJ. Auranofin induces apoptosis and when combined with retinoic acid enhances differentiation of acute promyelocytic leukaemia cells in vitro. Br J Pharmacol 2004; 142:749-55. [PMID: 15159275 PMCID: PMC1575039 DOI: 10.1038/sj.bjp.0705708] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
1. Acute promyelocytic leukaemia (APL) is characterized by a block in differentiation at the promyelocyte stage. Here, we describe the effects of auranofin (AF), a coordinated gold compound, on apoptosis and differentiation of APL cells. 2. Nucleosomal DNA fragmentation assay and Hoechst 33342 staining indicated that AF induced apoptosis in APL-derived NB4 cells at low concentrations (0.5-1.0 microm). The AF-induced apoptosis involved caspase-3 activation and specific cleavage of poly-ADP-ribose polymerase. 3. The AF-treated NB4 cells also produced reactive oxygen species (ROS) and cotreatment with N-acetyl-l-cysteine protected the NB4 cells from AF-induced apoptosis. 4. Expression of the CD11b cell surface marker and C/EBPepsilon was increased when the cells were treated for 4 days with 0.3 microm AF and a physiological concentration of all-trans retinoic acid (ATRA, 5 nm). Treatment with AF in combination with ATRA markedly increased the number of cells with differentiated features, such as lobed or multiple nuclei and numerous granules and vacuoles. At these low concentrations, neither AF nor ATRA alone induced significant cell differentiation. 5. These findings suggest not only that AF induces caspase-3-dependent apoptosis via a mechanism involving ROS, but also that the combined treatment with AF and ATRA induces differentiation of NB4 cells. Our results demonstrate a novel characteristic of AF from which an effective drug treatment of APL might be developed.
Collapse
MESH Headings
- Acetylcysteine/pharmacology
- Antigens, Surface/drug effects
- Antigens, Surface/genetics
- Antirheumatic Agents/adverse effects
- Antirheumatic Agents/antagonists & inhibitors
- Antirheumatic Agents/chemistry
- Apoptosis/drug effects
- Apoptosis/physiology
- Auranofin/adverse effects
- Auranofin/antagonists & inhibitors
- Auranofin/chemistry
- Benzimidazoles
- CD11b Antigen/genetics
- CD11b Antigen/metabolism
- Caspase 3
- Caspases/metabolism
- Cell Differentiation/drug effects
- DNA/chemistry
- DNA/drug effects
- Drug Therapy, Combination
- Fluorescent Dyes
- HL-60 Cells
- Humans
- Korea
- Leukemia, Promyelocytic, Acute/drug therapy
- Leukemia, Promyelocytic, Acute/pathology
- Leukemia, Promyelocytic, Acute/physiopathology
- Nucleosomes/chemistry
- Nucleosomes/drug effects
- Reactive Oxygen Species/metabolism
- Signal Transduction/physiology
- Tretinoin/pharmacology
- Tretinoin/therapeutic use
- Tumor Cells, Cultured
Collapse
Affiliation(s)
- I S Kim
- Department of Natural Sciences, College of Medicine, The Catholic University of Korea, Seoul, Korea.
| | | | | | | |
Collapse
|
36
|
Sato K, Jin JY, Takeuchi T, Miwa T, Suenami K, Takekoshi Y, Kanno S. Integrated pulsed amperometric detection of glufosinate, bialaphos and glyphosate at gold electrodes in anion-exchange chromatography. J Chromatogr A 2001; 919:313-20. [PMID: 11442037 DOI: 10.1016/s0021-9673(01)00843-3] [Citation(s) in RCA: 57] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A rapid and practical method for direct detection of the herbicides (glufosinate, bialaphos and glyphosate) in anion-exchange chromatography has been developed with integrated pulsed amperometric detection (IPAD). The electrochemical behavior of these herbicides showed catalytic currents based on the oxidation of amines in their structures. Waveform in IPAD was similar to that for amino acids, which exhibited adsorption/desorption catalytic features at gold electrode surface in alkaline solution. Under optimized conditions, detection limits (signal-to-noise ratio of 3) for glufosinate, bialaphos and glyphosate were 20, 65 and 50 ng ml(-1), respectively, with correlation coefficients of 0.995, 0.997 and 0.996 over concentration ranges of 0.1-45, 0.3-32 and 0.1-50 microg ml(-1), respectively. The relative standard deviations (n=5) were 1.7-3.0%. The present method was successfully applied to the determination of glyphosate in urine and serum.
Collapse
Affiliation(s)
- K Sato
- Department of Chemistry, Faculty of Engineering, Gifu University, Japan
| | | | | | | | | | | | | |
Collapse
|
37
|
Ko DC, Gordon MD, Jin JY, Scott MP. Dynamic movements of organelles containing Niemann-Pick C1 protein: NPC1 involvement in late endocytic events. Mol Biol Cell 2001; 12:601-14. [PMID: 11251074 PMCID: PMC30967 DOI: 10.1091/mbc.12.3.601] [Citation(s) in RCA: 197] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
People homozygous for mutations in the Niemann-Pick type C1 (NPC1) gene have physiological defects, including excess accumulation of intracellular cholesterol and other lipids, that lead to drastic neural and liver degeneration. The NPC1 multipass transmembrane protein is resident in late endosomes and lysosomes, but its functions are unknown. We find that organelles containing functional NPC1-fluorescent protein fusions undergo dramatic movements, some in association with extending strands of endoplasmic reticulum. In NPC1 mutant cells the NPC1-bearing organelles that normally move at high speed between perinuclear regions and the periphery of the cell are largely absent. Pulse-chase experiments with dialkylindocarbocyanine low-density lipoprotein showed that NPC1 organelles function late in the endocytic pathway; NPC1 protein may aid the partitioning of endocytic and lysosomal compartments. The close connection between NPC1 and the drug U18666A, which causes NPC1-like organelle defects, was established by rescuing drug-treated cells with overproduced NPC1. U18666A inhibits outward movements of NPC1 organelles, trapping membranes and cholesterol in perinuclear organelles similar to those in NPC1 mutant cells, even when cells are grown in lipoprotein-depleted serum. We conclude that NPC1 protein promotes the creation and/or movement of particular late endosomes, which rapidly transport materials to and from the cell periphery.
Collapse
Affiliation(s)
- D C Ko
- Departments of Developmental Biology and Genetics, Howard Hughes Medical Institute, Beckman Center B300, Stanford University School of Medicine, Stanford, California 94305, USA
| | | | | | | |
Collapse
|
38
|
Han JY, Kim KW, Kim JA, Kang JH, Jin JY, Hong YS, Park SY, Song JS, Park JW, Kim HK, Lee KS, Choi BG. A phase II study of a daily x4 schedule of vinorelbine plus cisplatin for advanced non-small cell lung cancer. Jpn J Clin Oncol 2000; 30:435-9. [PMID: 11185889 DOI: 10.1093/jjco/hyd118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Because dose intensity may be important as a determinant response to vinorelbine, we explored the possibility of increasing the dose intensity of vinorelbine on a daily x4 schedule. METHODS Between February 1998 and March 1999, 31 patients with previously untreated advanced non-small cell lung cancer were enrolled. Vinorelbine 15 mg/m2 and cisplatin 20 mg/ m2 were administered intravenously daily for 4 days and repeated every 21 days. RESULTS A total 96 cycles were administered (median 3, range 1-6); 42% of vinorelbine and 39% of cisplatin injections were dose-reduced or delayed owing to toxicity. The actual dose intensity (DI) of vinorelbine was 17.7 mg/m2/week and that of cisplatin was 24 mg/m2/week. These figures represent 88 and 90% of the theoretical DI, respectively. The overall response rate was 40% (12/30, one CR). The main toxicity was myelosuppression: granulocytopenia WHO grade 3 and 4 in 24 patients (77%) and thrombocytopenia grade 3 in two patients (6%). The non-hematological toxicity was mild and tolerable. After a median follow-up of 7.5 months (range 3-21 months), the median progression-free survival and overall survival times were 5 months (95% CI, 3.8-6.2) and 8 months (95% CI, 4.5-11.5), respectively. CONCLUSIONS This regimen has a comparable therapeutic activity in patients with advanced lung cancers. However, despite supportive care there were excessive hematological toxicities. In view of increased toxicity and similar efficacy, this regimen is not indicated outside a clinical trial.
Collapse
Affiliation(s)
- J Y Han
- Department of Internal Medicine, College of Medicine, Catholic University of Korea, Seoul
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
39
|
Sato K, Jin JY, Takeuchi T, Miwa T, Takekoshi Y, Kanno S, Kawase S. Indirect amperometric detection of underivatized amino acids in microcolumn liquid chromatography with carbon film based ring-disk electrodes. Analyst 2000; 125:1041-3. [PMID: 10932850 DOI: 10.1039/b002603o] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An indirect amperometric detection of underivatized amino acids has been developed using a carbon film based ring-disk electrode (CFBRDE) in microcolumn liquid chromatography (LC). Bromide present in the mobile phase could be efficiently oxidized to bromine at the upstream (disk) electrode, and was subsequently detected at the downstream (ring) electrode. Most of the underivatized amino acids that are electroinactive under conventional amperometric conditions react rapidly with the electrogenerated bromine, the concentration of amino acids can therefore be indirectly determined by continuously monitoring the reduction current of bromine. The signal monitored at the downstream electrode was largely dependent on the bromide concentration in the mobile phase. Under optimized conditions, the response linearly increased with the concentration for most of the amino acids over a concentration range of 1-100 microM, with a correlation coefficient of 0.990-0.993. The detection limits for most of the amino acids were below 1 microM (0.2 pmol). It was demonstrated that detection with a ring-disk electrode offers the advantages of achieving a much higher collection efficiency caused by a decrease in flow rate in the microcolumn LC.
Collapse
Affiliation(s)
- K Sato
- Department of Chemistry, Faculty of Engineering, Gifu University, Japan
| | | | | | | | | | | | | |
Collapse
|
40
|
Jin JY, Li ZH, Li ZJ, Jin ZY, Jin NG, Li Y, Xu WX, Li ZL. Effect of nitric oxide on electric and mechanical activities of gastric antral circular muscles in guinea pigs. Acta Pharmacol Sin 2000; 21:369-72. [PMID: 11324470] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023] Open
Abstract
AIM To study the effect of exogenous nitric oxide (NO) on electric and mechanical activities of gastric antral circular muscle in guinea pigs in vitro. METHODS Mechanical and electric activities of gastric antral circular muscle in guinea pigs were recorded simultaneously. RESULTS Sodium nitroprusside (SNP, 0.5 mumol.L-1), an NO donor, inhibited the frequency and amplitude of fast wave and spontaneous contraction of the strips (P < 0.01). SNP-induced inhibition was not blocked by tetrodotoxin, atropine, phentolamine, and propranolol (P > 0.05), but diminished by methylene blue (P < 0.01) and oxyhemoglobin (P < 0.01). CONCLUSION Exogenous NO inhibits gastric antral myoelectric and mechanical activities in guinea pigs. The inhibitions are produced by NO acting on extracellular membrane and enhancing the level of cGMP.
Collapse
Affiliation(s)
- J Y Jin
- Research Laboratory of Digestive Physiology, College of Medicine, Yanbian University, China
| | | | | | | | | | | | | | | |
Collapse
|
41
|
Jeong DC, Han CW, Jin JY, Kim DS, Choi IB, Kim WI, Kim HK, Kim CC, Lee BC, Imamura M, Noga SJ. Effectiveness of rotor off fraction in allogeneic murine bone marrow transplantation with complete disparity of major histocompatibility. Exp Hematol 1999; 27:1219-25. [PMID: 10390198 DOI: 10.1016/s0301-472x(99)00056-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Counterflow centrifugal elutriation (CCE) has been a highly efficient physical method for separating T cells from bone marrow (BM) without impairing cell function and yield. To investigate the usefulness of CCE, the hematopoietic potential as well as the level of T cell contamination in rotor-off (R/O) fraction of BM was studied using a murine bone marrow transplantation (BMT) model [C3H/He (H-2k)-->BALB/C (H-2d)]. The total recovery of cells after CCE procedure was 71.4%. Morphologically, R/O fraction contained abundant mononuclear cells and a few lymphocytes. The numbers of colony forming unit for granulocyte/monocyte (CFU-GM), Sca-1+ cells, and T cells were compared among four fractions of CCE (fractions at flow rate of 17, 25, 28 mL/min, and R/O fraction). The number of CFU-GM per 10(5) nucleated cells in each fraction were significantly higher in R/O fraction (331.3 +/- 34.4) compared to unfractionated marrow (UM) (21.1 +/- 1.3) and fraction of 17 mL/min (FR 17) (23.7 +/- 2.2 ) (chi2 = 0.0044). Neither fraction of 25 mL/min (FR 25) nor fraction of 28 mL/min (FR 28) contained CFU-GM colonies. The concentration of Sca-1+ cells in R/O fraction was significantly higher (1.96-fold) than UM (p < 0.05), and 80.0 +/- 10.1% of Sca-1+ cells in UM were recovered in R/O fraction; 88.1% of Thy-1.2+ T cells were eliminated in R/O fraction (p < 0.05). Mice receiving UM after lethal irradiation (875cGy) suffered from severe graft-versus-host disease (GVHD) and all five died within 7 days after BMT procedure (Group A). Of interest, mice receiving mixture of R/O fraction with lymphocyte-rich fraction (FR 25 plus FR 28) to equalize T cell number as UM, developed severe GVHD and four out of five died (probability of survival; 20%) (Group B). Mice receiving R/O fraction had mild GVHD and four out of five survived for at least 90 days (probability of survival; 80%) (Group C). In group C, probability of survival (p = 0.0006) was higher, and severity of GVHD (p = 0.0043) and progression rate of GVHD (p = 0.02) was lower. In conclusion, the elutriated R/O fraction cells of BM have the advantages of stable engraftment and tolerable GVHD in murine allogeneic BMT with complete major histocompatibility disparity. This could be directly applicable to patients with high risk of GVHD and graft failure in upcoming clinical trials.
Collapse
Affiliation(s)
- D C Jeong
- Department of Pediatrics, College of Medicine, The Catholic University of Korea, Seoul.
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
42
|
Tang LH, Qian HL, Cui G, Shang LY, Tang LY, Jiang MG, Xang BJ, Dong JM, Shi QL, Jin XL, Zhang PX, Zheng JJ, Yang ZH, Jin JY. Study of simplified measures for malaria surveillance in the late consolidation phase in China. Southeast Asian J Trop Med Public Health 1997; 28:4-11. [PMID: 9322277] [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: 02/05/2023]
Abstract
This paper presents the results of a study on simplified surveillance methods conducted in 23 pilot counties in 11 provinces and municipalities in China where reside 15 million people and malaria control has been in the late consolidation phase. Two simplified surveillance Schemes (A and B) taking treatment of clinical cases as the main measure were implemented in 1992-1994. The rate of annual blood examination for case detection was 1.0% in pilot Scheme A, while in areas of scheme B it was 0.3%. The implementation of both Scheme A and Scheme B, simplified or without treatment of infection foci and management of mobile populations, acquired satisfactory effects against malaria. Consequently, malaria incidence was declining steadily, only a few indigenous and introduced cases were detected. The parasite rate in residents and the IFA positive rate in children were very low. The results of pilot studies and cost-effectiveness analysis indicated that Scheme B is effective, rational and economic, and can be implemented to replace the routine surveillance measures in areas where malaria has been at the late consolidation phase in China.
Collapse
Affiliation(s)
- L H Tang
- Institute of Parasitic Diseases, Chinese Academy of Preventive Medicine, WHO Collaborating Center for Malaria, Schistosomiasis and Filariasis, Shanghai, China
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
43
|
Jin JY, Tooze JA, Marsh JC, Gordon-Smith EC. Glycosylphosphatidyl-inositol (GPI)-linked protein deficiency on the platelets of patients with aplastic anaemia and paroxysmal nocturnal haemoglobinuria: two distinct patterns correlating with expression on neutrophils. Br J Haematol 1997; 96:493-6. [PMID: 9054654 DOI: 10.1046/j.1365-2141.1997.d01-2047.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Deficiencies in glycosylphosphatidyl-inositol (GPI)-linked proteins on erythrocytes and leucocytes in patients with paroxysmal nocturnal haemoglobinuria (PNH) are well known; however, expression on platelets in these patients is less well documented. We have studied CD55 and CD59 on the platelets of PNH and aplastic anaemia (AA) patients using flow cytometry. In all cases of PNH, CD55 and CD59 negative populations of platelets were detected with single or bimodal distribution and these results showed close correlation with the CD55 and CD59 patterns of neutrophils. Previous published studies have not demonstrated this distribution. We suggest that our findings may be due to the methodology used.
Collapse
Affiliation(s)
- J Y Jin
- Department of Cellular and Molecular Sciences, St George's Hospital Medical School, London
| | | | | | | |
Collapse
|
44
|
Jin JY, Tooze JA, Marsh JC, Matthey F, Gordon-Smith EC. Myelodysplasia following aplastic anaemia-paroxysmal nocturnal haemoglobinuria syndrome after treatment with immunosuppression and G-CSF: evidence for the emergence of a separate clone. Br J Haematol 1996; 94:510-2. [PMID: 8790151 DOI: 10.1046/j.1365-2141.1996.d01-1831.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Myelodysplasia (MDS) and aplastic anaemia-paroxysmal nocturnal haemoglobinuria (AA/PNH) syndrome developed in a severe aplastic anaemia (AA) patient after treatment with immunosuppressive (IS) therapy. Glycosylphosphatidyl inositol (GPI)-linked proteins were determined, and during the AA/PNH phase, a high proportion of neutrophils were found to be negative, without clinical evidence of haemolysis. However, MDS developed with cytogenetic abnormalities of monosomy 7,9q- and a rearranged chromosome 6; the GPI-linked protein negative cells were completely replaced by positively expressing cells. This represents the emergence of a GPI-linked protein positive myelodysplasia clone arising separately from an AA/PNH clone.
Collapse
Affiliation(s)
- J Y Jin
- Department of Cellular and Molecular Sciences, St George's Hospital Medical School, London
| | | | | | | | | |
Collapse
|
45
|
Jin JY, Kim DW, Lee JW, Han CW, Min WS, Park CW, Kim CC, Kim DJ, Kim HK, Song HH. Immune suppression therapy in aplastic anemia: influencing factors on response and survival. Korean J Intern Med 1995; 10:25-31. [PMID: 7626553 PMCID: PMC4532026 DOI: 10.3904/kjim.1995.10.1.25] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
OBJECTIVES Immune suppression (IS) therapy has provided another opportunity of cure or improvement in the aplastic anemia patients who cannot receive bone marrow transplantation due to many causes. There are a few reports regarding the factors that affect response, survival and prognosis after IS therapy, including antilymphocyte globulin (ALG) in aplastic anemia. Therefore, we analysed our experience to determine the prognostic factors. METHODS Statistically analysed were 172 patients, from April 1982 to July 1992, who were diagnosed as severe aplastic anemia and treated with IS therapy, including ALG, at Catholic University Medical College, St. Mary's Hospital. RESULTS Among 172 severe aplastic anemia (SAA) patients who entered the study from April 1982 to July 1992, 144 patients were analysed for response and 122 patient for survival. 58.4% (84/144) responded after the first course of IS therapy. Among those who did not respond on the first course an additional 44% (11/25) responded after the second course of IS therapy. Prognostic factors that might affect the response to the treatment and survival were analysed. In a univariate analysis of patients with no previous history of treatment before is therapy, and a shorter interval between diagnosis and treatment, higher hemoglobin levels before IS therapy, and higher granulocyte counts and combined use use of cyclosporin A(CSA) were positively associated with response (p < 0.05). The combined use of CSA during IS therapy, younger age, lower monthly requirement of platelets transfusion before IS therapy, higher leukocyte counts, higher percent of polymorphonuclear leukocytes, lower percent of lymphocyte, higher bone marrow cellularity and response were positively associated with survival (p < 0.05). In a multivariate analysis, shorter interval between diagnosis and treatment, no combined use of hemopoietic stimulants, such as androgen, and lesser total amount of transfusion were positively associated with Response (p < 0.05). Higher leukocyte counts before IS therapy and the combined use of CSA during IS therapy were significantly associated with longer survival (p < 0.05). Patients with complete or partial response had excellent prognosis (96.7%-100% of 5 year survival rates). In contrast, patients with no response after IS therapy had 45.1% of 5 year survival rates. CONCLUSIONS With these results from the retrospective study of IS therapy, we find many valuable factors that have an influence on response or survival. IS therapy improves the survival of responded patients with SAA, and we confirmed that IS therapy is an important therapeutic tool for the SAA patients who are not feasible candidates for bone marrow transplantation.
Collapse
Affiliation(s)
- J Y Jin
- Department of Internal Medicine, Catholic University Medical College, Seoul, Korea
| | | | | | | | | | | | | | | | | | | |
Collapse
|
46
|
Kim DJ, Kim CC, Kim BK, Kim DW, Lee JW, Jin JY, Han CW, Min WS, Park CW, Kim HK. Allogeneic bone marrow transplantation in Korea: 1983-92. Bone Marrow Transplant 1994; 13:717-9. [PMID: 7920301] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Between March 1983 and December 1992, we performed 178 allogeneic BMTs for patients with hematopoietic stem cell disorders: 48 acute myelogenous leukemia (AML), 27 acute lymphoblastic leukemia (ALL), 40 chronic myelogenous leukemia (CML), 55 severe aplastic anemia (SAA), 6 myelodysplastic syndrome (MDS), 1 non-Hodgkin's lymphoma and 1 hybrid leukemia. Twenty-five of 48 AML are in disease-free survival (DFS). Fifteen of 27 ALL are in unmaintained remission. Twenty-four of 40 CML are in DFS. Forty-four out of 55 SAA patients are alive and well. Comparing the survival between standard (< or = CR1: 21 of 31 (68%)) and high risk (> or = CR2: 4 of 17 (24%)) AML, our data suggest that the preparative regimen for high risk AML was not potent enough to eradicate the residual disease in advanced AML. Although our cases are limited and the follow-up period is short, the result of ALL (overall: 56%, standard risk (adult < or = CR1, children < or = CR2: 10 of 14 (71%) and high risk (adult > or = CR2, children > CR2): 5 of 13 (38%)) and CML (overall: 60%; CP: 19 of 27 (70%), AP or BC: 5 of 13 (38%)) are promising. The probability of 5 year survival of SAA was 80 +/- 4 years.(ABSTRACT TRUNCATED AT 250 WORDS)
Collapse
Affiliation(s)
- D J Kim
- Catholic BMT Center, St. Mary's Hospital, Catholic University Medical College, Seoul, Korea
| | | | | | | | | | | | | | | | | | | |
Collapse
|
47
|
Pao CC, Tsai PL, Chang YL, Hsieh TT, Jin JY. Possible non-sexual transmission of genital human papillomavirus infections in young women. Eur J Clin Microbiol Infect Dis 1993; 12:221-2. [PMID: 8389707 DOI: 10.1007/bf01967118] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Human papillomaviruses were detected by an in vitro enzymatic DNA amplification method in cells obtained from vulvar swabs of 9 of 61 (14.8%) young women without prior experience of sexual intercourse and in 7 of 57 (12.3%) young women with prior experience. The prevalence of human papillomavirus DNA in these two groups of women was not significantly different (x2 = 0.16, p > 0.5; 95% confidence interval -0.165 to 0.215). These results suggest that genital human papillomavirus is not sexually transmitted in all cases and that it may be acquired by modes other than sexual contact.
Collapse
Affiliation(s)
- C C Pao
- Department of Biochemistry, Chang Gung Medical College, Taiwan, China
| | | | | | | | | |
Collapse
|
48
|
|