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Chen C, Zhou S, Yang X, Ren M, Qi Y, Mao Y, Yang C. In vitro study of cold atmospheric plasma-activated liquids inhibits malignant melanoma by affecting macrophage polarization through the ROS/JAK2/STAT1 pathway. Biomed Pharmacother 2024; 175:116657. [PMID: 38688171 DOI: 10.1016/j.biopha.2024.116657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2024] [Revised: 04/18/2024] [Accepted: 04/24/2024] [Indexed: 05/02/2024] Open
Abstract
Melanoma is a prevalent malignant skin tumor known for its high invasive ability and a high rate of metastasis, making clinical treatment exceptionally challenging. Tumor-associated macrophages (TAMs) are the most abundant immune cells in the tumor microenvironment and play a crucial role in tumor survival and development. Cold atmospheric plasma (CAP) is an emerging tool for tumor treatment that has garnered attention from scholars due to its interaction with non-tumor cells in the tumor microenvironment. Here, we used the macrophage lines THP-1 and RAW264.7, as well as the melanoma cell lines A375 and MV3, as research subjects to investigate the effect of plasma-activated liquid (PAL) on macrophage differentiation and its inhibitory effect on melanoma cell proliferation. We confirmed that the killing effect of PAL on melanoma cells was selective. Using flow cytometry and PCR, we discovered that PAL can influence macrophage differentiation. Through in vitro cell coculture, we demonstrated that PAL-treated macrophages can significantly impede tumor cell development and progression, and the effect is more potent than that of PAL directly targeting tumor cells. Furthermore, we have proposed the hypothesis that PAL promotes the differentiation of macrophages into the M1 type through the ROS/JAK2/STAT1 pathway. To test the hypothesis, we employed catalase and fludarabine to block different sites of the pathway. The results were then validated through Western Blot, qPCR and ELISA. This study illustrates that PAL therapy is an effective tumor immunotherapy and expands the scope of tumor immunotherapy. Furthermore, these findings establish a theoretical foundation for potential clinical applications of PAL.
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Affiliation(s)
- Cheng Chen
- Department of Dermatology and Venereology, the Second Affiliated Hospital of Anhui Medical University, Anhui medical University, Hefei 230601, China; Joint Laboratory for Plasma Clinical Applications, the Second Affiliated Hospital of Anhui Medical University, Anhui medical University, Hefei 230601, China
| | - Shiyun Zhou
- Department of Dermatology and Venereology, the Second Affiliated Hospital of Anhui Medical University, Anhui medical University, Hefei 230601, China; Joint Laboratory for Plasma Clinical Applications, the Second Affiliated Hospital of Anhui Medical University, Anhui medical University, Hefei 230601, China
| | - Xingyu Yang
- Department of Dermatology and Venereology, the Second Affiliated Hospital of Anhui Medical University, Anhui medical University, Hefei 230601, China; Joint Laboratory for Plasma Clinical Applications, the Second Affiliated Hospital of Anhui Medical University, Anhui medical University, Hefei 230601, China
| | - Miaomiao Ren
- Department of Dermatology and Venereology, the Second Affiliated Hospital of Anhui Medical University, Anhui medical University, Hefei 230601, China; Joint Laboratory for Plasma Clinical Applications, the Second Affiliated Hospital of Anhui Medical University, Anhui medical University, Hefei 230601, China
| | - Yongshuang Qi
- Department of Dermatology and Venereology, the Second Affiliated Hospital of Anhui Medical University, Anhui medical University, Hefei 230601, China; Joint Laboratory for Plasma Clinical Applications, the Second Affiliated Hospital of Anhui Medical University, Anhui medical University, Hefei 230601, China
| | - Yiwen Mao
- Department of Dermatology and Venereology, the Second Affiliated Hospital of Anhui Medical University, Anhui medical University, Hefei 230601, China; Joint Laboratory for Plasma Clinical Applications, the Second Affiliated Hospital of Anhui Medical University, Anhui medical University, Hefei 230601, China
| | - Chunjun Yang
- Department of Dermatology and Venereology, the Second Affiliated Hospital of Anhui Medical University, Anhui medical University, Hefei 230601, China; Joint Laboratory for Plasma Clinical Applications, the Second Affiliated Hospital of Anhui Medical University, Anhui medical University, Hefei 230601, China.
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Tang R, Xie Z, Ruan X, Zhang Z, Ren M, Wu J, Shu K, Shi H, Xie M, Lv S, Yang X, Chen R, Yu Q. Changes in menopausal symptoms comparing oral estradiol versus transdermal estradiol. Climacteric 2024; 27:171-177. [PMID: 37942806 DOI: 10.1080/13697137.2023.2273530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Accepted: 10/04/2023] [Indexed: 11/10/2023]
Abstract
OBJECTIVE This study aimed to compare the efficacy and safety of oral and transdermal estradiol in alleviating menopausal symptoms. METHOD A total of 257 recently menopausal women were randomized into two groups. The t-E2 group received transdermal estradiol (2.5 g per day) (n = 128) and the o-E2V group received oral estradiol valerate (2 mg per day) (n = 129) for 24 weeks; both groups received micronized progesterone (200 mg per day). The primary outcome measure is the change in the modified Kupperman Menopausal Index (KMI) after 24 weeks of treatment. Menopausal symptoms were recorded at screening and at 4, 12 and 24 weeks using both the KMI and the Menopause Rating Scale (MRS). RESULTS Significant amelioration was observed by KMI and MRS scores for both groups after treatment (p < 0.001). The mean KMI scores showed no difference between the two groups. The mean MRS scores were similar between the two groups at baseline and after 4 weeks of treatment. The results showed statistical differences after 12 weeks and 24 weeks of treatment (p = 0.005 and p = 0.011). Both the after-treatment scores minus the baseline scores of KMI and MRS and the incidence of adverse effects showed no difference between the two groups. CONCLUSIONS This study shows that both transdermal and oral estradiol are effective in relieving menopausal symptoms, with little difference in treatment efficacy and safety. CLINICAL TRIAL NUMBER ChiCTR2300073146.
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Affiliation(s)
- R Tang
- Department of Obstetrics and Gynecology, National Clinical Research Center for Obstetric & Gynecologic Diseases, Beijing, China
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Z Xie
- Department of Obstetrics and Gynecology, National Clinical Research Center for Obstetric & Gynecologic Diseases, Beijing, China
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - X Ruan
- Beijing Obstetrics and Gynaecology Hospital, Capital Medical University, Beijing, China
| | - Z Zhang
- Hangzhou Obstetrics and Gynecology Hospital, Hangzhou, China
| | - M Ren
- Zhongda Hospital affiliated to Southeast University, Nanjing, China
| | - J Wu
- Jiangsu Province Hospital, Jiangsu, China
| | - K Shu
- Jiangxi Maternal and Child Health Hospital, Jiangxi, China
| | - H Shi
- The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - M Xie
- Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - S Lv
- The First Affiliated Hospital of Xi'an Jiaotong University, Shaanxi, China
| | - X Yang
- Peking University People's Hospital, Beijing, China
| | - R Chen
- Department of Obstetrics and Gynecology, National Clinical Research Center for Obstetric & Gynecologic Diseases, Beijing, China
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Q Yu
- Department of Obstetrics and Gynecology, National Clinical Research Center for Obstetric & Gynecologic Diseases, Beijing, China
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
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Ren M, Li J, Xu Z, Nan B, Gao H, Wang H, Lin Y, Shen H. Arsenic exposure induced renal fibrosis via regulation of mitochondrial dynamics and the NLRP3-TGF-β1/SMAD signaling pathway. Environ Toxicol 2024. [PMID: 38511876 DOI: 10.1002/tox.24196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 01/18/2024] [Accepted: 02/25/2024] [Indexed: 03/22/2024]
Abstract
Environmental arsenic exposure is one of the major global public health problems. Studies have shown that arsenic exposure can cause renal fibrosis, but the underlying mechanism is still unclear. Integrating the in vivo and in vitro models, this study investigated the potential molecular pathways for arsenic-induced renal fibrosis. In this study, SD rats were treated with 0, 5, 25, 50, and 100 mg/L NaAsO2 for 8 weeks via drinking water, and HK2 cells were treated with different doses of NaAsO2 for 48 h. The in vivo results showed that arsenic content in the rats' kidneys increased as the dose increased. Body weight decreased and kidney coefficient increased at 100 mg/L. As a response to the elevated NaAsO2 dose, inflammatory cell infiltration, renal tubular injury, glomerular atrophy, tubulointerstitial hemorrhage, and fibrosis became more obvious indicated by HE and Masson staining. The kidney transcriptome profiles further supported the protein-protein interactions involved in NaAsO2-induced renal fibrosis. The in vivo results, in together with the in vitro experiments, have revealed that exposure to NaAsO2 disturbed mitochondrial dynamics, promoted mitophagy, activated inflammation and the TGF-β1/SMAD signaling pathway, and finally resulted in fibrosis. In summary, arsenic exposure contributed to renal fibrosis via regulating the mitochondrial dynamics and the NLRP3-TGF-β1/SMAD signaling axis. This study presented an adverse outcome pathway for the development of renal fibrosis due to arsenic exposure through drinking water.
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Affiliation(s)
- Miaomiao Ren
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory & State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen, China
| | - Jing Li
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory & State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen, China
| | - Zehua Xu
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory & State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen, China
| | - Bingru Nan
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, China
| | - Hongying Gao
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory & State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen, China
| | - Heng Wang
- Zhoushan Municipal Center for Disease Control and Prevention, Zhoushan, Zhejiang, China
| | - Yi Lin
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory & State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen, China
| | - Heqing Shen
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory & State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen, China
- Department of Obstetrics, Women and Children's Hospital, School of Medicine, Xiamen University, Xiamen, China
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Gao L, Yang P, Luo C, Lei M, Shi Z, Cheng X, Zhang J, Cao W, Ren M, Zhang L, Wang B, Zhang Q. Machine learning predictive models for grading bronchopulmonary dysplasia: umbilical cord blood IL-6 as a biomarker. Front Pediatr 2023; 11:1301376. [PMID: 38161441 PMCID: PMC10757373 DOI: 10.3389/fped.2023.1301376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/24/2023] [Accepted: 11/27/2023] [Indexed: 01/03/2024] Open
Abstract
Objectives This study aimed to analyze the predictive value of umbilical cord blood Interleukin-6 (UCB IL-6) for the severity-graded BPD and to establish machine learning (ML) predictive models in a Chinese population based on the 2019 NRN evidence-based guidelines. Methods In this retrospective analysis, we included infants born with gestational age <32 weeks, who underwent UCB IL-6 testing within 24 h of admission to our NICU between 2020 and 2022. We collected their medical information encompassing the maternal, perinatal, and early neonatal phases. Furthermore, we classified the grade of BPD according to the 2019 NRN evidence-based guidelines. The correlation between UCB IL-6 and the grades of BPD was analyzed. Univariate analysis and ordinal logistic regression were employed to identify risk factors, followed by the development of ML predictive models based on XGBoost, CatBoost, LightGBM, and Random Forest. The AUROC was used to evaluate the diagnostic value of each model. Besides, we generated feature importance distribution plots based on SHAP values to emphasize the significance of UCB IL-6 in the models. Results The study ultimately enrolled 414 preterm infants, with No BPD group (n = 309), Grade 1 BPD group (n = 73), and Grade 2-3 BPD group (n = 32). The levels of UCB IL-6 increased with the grades of BPD. UCB IL-6 demonstrated clinical significance in predicting various grades of BPD, particularly in distinguishing Grade 2-3 BPD patients, with an AUROC of 0.815 (95% CI: 0.753-0.877). All four ML models, XGBoost, CatBoost, LightGBM, and Random Forest, exhibited Micro-average AUROC values of 0.841, 0.870, 0.851, and 0.878, respectively. Notably, UCB IL-6 consistently appeared as the most prominent feature across the feature importance distribution plots in all four models. Conclusion UCB IL-6 significantly contributes to predicting severity-graded BPD, especially in grade 2-3 BPD. Through the development of four ML predictive models, we highlighted UCB IL-6's importance.
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Affiliation(s)
- Linan Gao
- Neonatal Intensive Care Unit, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Clinical Treatment and Follow-Up Center for High-Risk Newborns of Henan Province, Zhengzhou, China
- Key Laboratory for Prevention and Control of Developmental Disorders, Zhengzhou, China
| | - Pengkun Yang
- Computer Science and Technology, University of Science and Technology of China, Hefei, China
| | - Chenghan Luo
- Department of Orthopaedics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Mengyuan Lei
- Health Care Department, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Zanyang Shi
- Neonatal Intensive Care Unit, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Clinical Treatment and Follow-Up Center for High-Risk Newborns of Henan Province, Zhengzhou, China
- Key Laboratory for Prevention and Control of Developmental Disorders, Zhengzhou, China
| | - Xinru Cheng
- Neonatal Intensive Care Unit, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Clinical Treatment and Follow-Up Center for High-Risk Newborns of Henan Province, Zhengzhou, China
- Key Laboratory for Prevention and Control of Developmental Disorders, Zhengzhou, China
| | - Jingdi Zhang
- Neonatal Intensive Care Unit, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Clinical Treatment and Follow-Up Center for High-Risk Newborns of Henan Province, Zhengzhou, China
- Key Laboratory for Prevention and Control of Developmental Disorders, Zhengzhou, China
| | - Wenjun Cao
- Neonatal Intensive Care Unit, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Clinical Treatment and Follow-Up Center for High-Risk Newborns of Henan Province, Zhengzhou, China
- Key Laboratory for Prevention and Control of Developmental Disorders, Zhengzhou, China
| | - Miaomiao Ren
- Neonatal Intensive Care Unit, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Clinical Treatment and Follow-Up Center for High-Risk Newborns of Henan Province, Zhengzhou, China
- Key Laboratory for Prevention and Control of Developmental Disorders, Zhengzhou, China
| | - Luwen Zhang
- Neonatal Intensive Care Unit, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Clinical Treatment and Follow-Up Center for High-Risk Newborns of Henan Province, Zhengzhou, China
- Key Laboratory for Prevention and Control of Developmental Disorders, Zhengzhou, China
| | - Bingyu Wang
- Neonatal Intensive Care Unit, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Clinical Treatment and Follow-Up Center for High-Risk Newborns of Henan Province, Zhengzhou, China
- Key Laboratory for Prevention and Control of Developmental Disorders, Zhengzhou, China
| | - Qian Zhang
- Neonatal Intensive Care Unit, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Clinical Treatment and Follow-Up Center for High-Risk Newborns of Henan Province, Zhengzhou, China
- Key Laboratory for Prevention and Control of Developmental Disorders, Zhengzhou, China
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Li J, Nan B, Xu Z, Chang H, Xu S, Ren M, Zhang Y, Wu Y, Chen Y, Guo D, Shen H. Arsenic exposure caused male infertility indicated by testis and sperm metabolic dysfunction in SD rats. Sci Total Environ 2023; 904:166838. [PMID: 37689206 DOI: 10.1016/j.scitotenv.2023.166838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 08/12/2023] [Accepted: 09/02/2023] [Indexed: 09/11/2023]
Abstract
Arsenic containment is one of the most severe environmental problems. It has been reported that arsenic exposure could cause male reproductive damage. However, the evidence chain from sodium arsenite (NaAsO2) exposure to adverse male fertility outcomes has not been completed by molecular events. In this study, adult male rats were exposed to NaAsO2 for eight weeks via drinking water for verifying their reproductive capacity by checking the phenotypes of testis damage, sperm quality, and female pregnancy rate. H&E staining indicated testicular cells had atrophied, and necrosis was observed under transmission electron microscopy. Sperm viability tended to decrease, and sperm malformation increased. Notably, metabolites in the testes and sperm showed substantial disruption, especially sperm metabolites. The pregnancy rate tests showed that arsenic decreased male rats' reproduction, with some adverse outcomes of the increased numbers of unpregnant females. However, the fetal crown-rump length remained unaltered, indicating that the pregnancy rate was impacted by arsenic exposure but not fetal growth. On arsenic toxicometabolomics analysis, docosahexaenoic acid (DHA) in sperm was the clearest metabolic sign to correlate with the unpregnant rate. In summary, arsenic exposure can cause male infertility via the injured sperm, which results in decreased female pregnancy. The DHA information may imply the dietary intervention for improving sperm quality. Although the fetal growth of the successful pregnancy has not been affected, the changes in epigenetic phenotypes carried by sperms still need to be verified.
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Affiliation(s)
- Jing Li
- State Key Laboratory of Infectious Disease Vaccine Development, Xiang An Biomedicine Laboratory & State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen 361003, PR China
| | - Bingru Nan
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, PR China; Department of Oncology & Cancer Institute, Sichuan Academy of Medical Sciences, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, 610072, PR China
| | - Zehua Xu
- State Key Laboratory of Infectious Disease Vaccine Development, Xiang An Biomedicine Laboratory & State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen 361003, PR China
| | - Hao Chang
- State Key Laboratory of Infectious Disease Vaccine Development, Xiang An Biomedicine Laboratory & State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen 361003, PR China
| | - Song Xu
- State Key Laboratory of Infectious Disease Vaccine Development, Xiang An Biomedicine Laboratory & State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen 361003, PR China
| | - Miaomiao Ren
- State Key Laboratory of Infectious Disease Vaccine Development, Xiang An Biomedicine Laboratory & State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen 361003, PR China
| | - Yike Zhang
- State Key Laboratory of Infectious Disease Vaccine Development, Xiang An Biomedicine Laboratory & State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen 361003, PR China
| | - Yaru Wu
- State Key Laboratory of Infectious Disease Vaccine Development, Xiang An Biomedicine Laboratory & State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen 361003, PR China
| | - Yujie Chen
- State Key Laboratory of Infectious Disease Vaccine Development, Xiang An Biomedicine Laboratory & State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen 361003, PR China
| | - Dongbei Guo
- State Key Laboratory of Infectious Disease Vaccine Development, Xiang An Biomedicine Laboratory & State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen 361003, PR China
| | - Heqing Shen
- State Key Laboratory of Infectious Disease Vaccine Development, Xiang An Biomedicine Laboratory & State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen 361003, PR China; Department of Obstetrics, Women and Children's Hospital, School of Medicine, Xiamen University, Xiamen 361003, PR China.
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Hu J, Ren M, Cai X, Lyu JJ, Shen XX, Kong YY. [Clinicopathological and prognostic features of subungual melanoma in situ]. Zhonghua Bing Li Xue Za Zhi 2023; 52:1006-1011. [PMID: 37805391 DOI: 10.3760/cma.j.cn112151-20230226-00152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 10/09/2023]
Abstract
Objective: To investigate the clinicopathological characteristics, immunohistochemical profiles, molecular features, and prognosis of subungual melanoma in situ (SMIS). Methods: Thirty cases of SMIS were collected in Fudan University Shanghai Cancer Center, Shanghai, China from 2018 to 2022. The clinicopathological characteristics and follow-up data were retrospectively analyzed. Histopathologic evaluation and immunohistochemical studies were carried out. By using Vysis melanoma fluorescence in situ hybridization (FISH) probe kit, combined with 9p21(CDKN2A) and 8q24(MYC) assays were performed. Results: There were 8 males and 22 females. The patients' ages ranged from 22 to 65 years (median 48 years). All patients presented with longitudinal melanonychia involving a single digit. Thumb was the most commonly affected digit (16/30, 53.3%). 56.7% (17/30) of the cases presented with Hutchinson's sign. Microscopically, melanocytes proliferated along the dermo-epithelial junction. Hyperchromatism and nuclear pleomorphism were two of the most common histological features. The melanocyte count ranged from 30 to 185. Most cases showed small to medium nuclear enlargement (29/30, 96.7%). Pagetoid spread was seen in all cases. Intra-epithelial mitoses were identified in 56.7% (17/30) of the cases. Involvement of nailfold was found in 19 cases, 4 of which were accompanied by cutaneous adnexal extension. The positive rates of SOX10, PNL2, Melan A, HMB45, S-100, and PRAME were 100.0%, 100.0%, 96.0%, 95.0%, 76.9%, and 83.3%, respectively. FISH analysis was positive in 6/9 of the cases. Follow-up data were available in 28 patients, and all of them were alive without disease. Conclusions: SMIS mainly shows small to medium-sized cells. High melanocyte count, hyperchromatism, nuclear pleomorphism, Pagetoid spreading, intra-epithelial mitosis, nailfold involvement, and cutaneous adnexal extension are important diagnostic hallmarks. Immunohistochemistry including SOX10 and PRAME, combined with FISH analysis, is valuable for the diagnosis of SMIS.
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Affiliation(s)
- J Hu
- Department of Pathology, Fudan University Shanghai Cancer Center/Department of Oncology, Shanghai Medical College, Fudan University/Institute of Pathology, Fudan University, Shanghai 200032, China
| | - M Ren
- Department of Pathology, Fudan University Shanghai Cancer Center/Department of Oncology, Shanghai Medical College, Fudan University/Institute of Pathology, Fudan University, Shanghai 200032, China
| | - X Cai
- Department of Pathology, Fudan University Shanghai Cancer Center/Department of Oncology, Shanghai Medical College, Fudan University/Institute of Pathology, Fudan University, Shanghai 200032, China
| | - J J Lyu
- Department of Pathology, Fudan University Shanghai Cancer Center/Department of Oncology, Shanghai Medical College, Fudan University/Institute of Pathology, Fudan University, Shanghai 200032, China
| | - X X Shen
- Department of Pathology, Fudan University Shanghai Cancer Center/Department of Oncology, Shanghai Medical College, Fudan University/Institute of Pathology, Fudan University, Shanghai 200032, China
| | - Y Y Kong
- Department of Pathology, Fudan University Shanghai Cancer Center/Department of Oncology, Shanghai Medical College, Fudan University/Institute of Pathology, Fudan University, Shanghai 200032, China
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Liu Y, Wu M, Ren M, Bao H, Wang Q, Wang N, Sun S, Xu J, Yang X, Zhao X, Bao Y, He G, Xu W. From Medical Herb to Functional Food: Development of a Fermented Milk Containing Silybin and Protein from Milk Thistle. Foods 2023; 12:foods12061308. [PMID: 36981234 PMCID: PMC10048290 DOI: 10.3390/foods12061308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Accepted: 03/09/2023] [Indexed: 03/30/2023] Open
Abstract
Milk thistle is a traditional medicinal herb. Silybin is a medicinal component found in the seed coat of milk thistle, which has liver-protective and anti-cancer properties. Conventional studies have focused on the extraction of silybin with organic reagents, which was inapplicable to the food industry. This study aims to develop a fermented milk containing silybin and protein from the milk thistle seeds. A three step procedure was developed, comprising homogenization of milk thistle seeds, NaHCO3 heat treatment, and microbial fermentation. The silybin was characterized by high performance liquid chromatography, and the protein was quantified and electrophorized. It was found that the homogenization step was essential for the preparation of protein, and the NaHCO3 heat treatment was the crucial step in obtaining silybin. The optimal NaHCO3 treatment settings were 1% NaHCO3, 60°C, and 3 h, and the optimal strains for microbial fermentation were L131 (Rummeliibacillus stabekisii) and RS72 (Lactobacillus plantarum). The silybin yield in the fermented milk reached 11.24-12.14 mg/g seeds, accounting for 72.6-78.4% of the total silybin in the milk thistle seeds, and the protein yield reached 121.8-129.6 mg/g seeds. The fermented milk had a slightly sweet yoghurt-like flavor and could be used as a dietary supplement for silybin and protein.
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Affiliation(s)
- Yanxia Liu
- School of Ocean Science and Technology, Panjin Institute of Industrial Technology, Dalian University of Technology, Panjin Campus, Panjin 124221, China
| | - Minghuo Wu
- School of Ocean Science and Technology, Panjin Institute of Industrial Technology, Dalian University of Technology, Panjin Campus, Panjin 124221, China
| | - Miaomiao Ren
- School of Ocean Science and Technology, Panjin Institute of Industrial Technology, Dalian University of Technology, Panjin Campus, Panjin 124221, China
| | - Haijun Bao
- Yingkou Chenguang Extraction Equipment Co., Ltd., Yingkou 115000, China
| | - Qing'an Wang
- Yingkou Chenguang Extraction Equipment Co., Ltd., Yingkou 115000, China
| | - Nan Wang
- Yingkou Chenguang Extraction Equipment Co., Ltd., Yingkou 115000, China
| | - Shibo Sun
- School of Life and Pharmaceutical Sciences, Dalian University of Technology, Panjin Campus, Panjin 124221, China
| | - Jianqiang Xu
- School of Life and Pharmaceutical Sciences, Dalian University of Technology, Panjin Campus, Panjin 124221, China
| | - Xiaojing Yang
- School of Ocean Science and Technology, Panjin Institute of Industrial Technology, Dalian University of Technology, Panjin Campus, Panjin 124221, China
| | - Xu Zhao
- School of Ocean Science and Technology, Panjin Institute of Industrial Technology, Dalian University of Technology, Panjin Campus, Panjin 124221, China
| | - Yongming Bao
- School of Ocean Science and Technology, Panjin Institute of Industrial Technology, Dalian University of Technology, Panjin Campus, Panjin 124221, China
| | - Gaohong He
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Weiping Xu
- School of Ocean Science and Technology, Panjin Institute of Industrial Technology, Dalian University of Technology, Panjin Campus, Panjin 124221, China
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Bai J, Liu T, Ren M, Wang X. Neobavaisoflavone improves medial collateral ligament-induced osteoarthritis through repressing the nuclear factor -κB/hypoxia-inducible factor-2α axis. J Physiol Pharmacol 2022; 73. [PMID: 36942811 DOI: 10.26402/jpp.2022.5.08] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Accepted: 08/30/2022] [Indexed: 03/23/2023]
Abstract
Osteoarthritis (OA) is a chronic inflammatory joint disease. There have been some studies on the treatment of OA with traditional Chinese medicine (TCM). Neobavaisoflavone (NBIF) is an isoflavone isolated from TCM Psoralea corylifolia L (also called 'Buguzhi') and shows anti-inflammatory effects. This study aims to explore the potential role of NBIF in treating OA. The rat chondrocytes were dealt with interleukin-1beta (IL-1β) for inducing an in-vitro OA model and a rat OA model was established by medial collateral ligament resection. Followed by NBIF treatment, 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide and flow cytometry were performed to evaluate chondrocyte proliferation and apoptosis. The expression of inflammatory factors and oxidative stress factors in chondrocyte medium and rat serum was tested by enzyme-linked immunosorbent assay (ELISA). Hematoxylin-eosin (HE) staining and Safranin O-Fast Green staining were carried out to examine the histopathological changes in knee joints. Caspase-3, nuclear factor-kappaB (NF-κB), and hypoxia-inducible factor-2alpha (HIF-2α) expressions were monitored by quantitative reverse transcription-polymerase chain reaction (qRT-PCR), Western blot, and/or immunohistochemistry. As indicated by the results, NBIF mitigated cartilage matrix degradation and chondrocyte apoptosis in the OA rat model. NBIF hampered IL-1β-mediated cell viability inhibition, apoptosis, inflammatory reactions, and oxidative stress of chondrocytes. Moreover, NBIF suppressed NF-κB phosphorylation and HIF-2α expression. HIF-2α overexpression induced inflammation, oxidative stress, and apoptosis in chondrocytes, while NBIF reversed HIF-2α overexpression-caused chondrocyte damage. Overall, NBIF had antiapoptotic, anti-inflammatory, and antioxidative stress effects in OA models by impeding NF-κB/HIF-2α axis, suggesting that NBIF has potential therapeutic effects in OA.
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Affiliation(s)
- J Bai
- Second Department of Orthopaedics, Tangshan Gongren Hospital, Tangshan, Hebei, China
| | - T Liu
- Second Department of Orthopaedics, Tangshan Gongren Hospital, Tangshan, Hebei, China
| | - M Ren
- Second Department of Orthopaedics, Tangshan Gongren Hospital, Tangshan, Hebei, China
| | - X Wang
- Second Department of Orthopaedics, Tangshan Gongren Hospital, Tangshan, Hebei, China.
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Ren M, Chen LX, Shu M, Li X, Li YY, Zhong XL, Zhu Y, Guo Q, Liao Q, Wen Y, Luo SH, Wan CM. [Relationship between nutritional factors and clinical outcome in children with tuberculous meningitis]. Zhonghua Er Ke Za Zhi 2022; 60:221-226. [PMID: 35240742 DOI: 10.3760/cma.j.cn112140-20210926-00827] [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 investigate the relationship between nutritional risk status and clinical outcome in children with tuberculous meningitis (TBM). Methods: The clinical data (basic information, clinical symptoms and laboratory test results) of 112 patients with TBM, who were admitted to Department of Pediatric Infectious Diseases of West China Second Hospital of Sichuan University,from January 2013 to December 2020 were retrospectively analyzed. The patients were divided into the nutritional risk group and the non-nutritional risk group according to the assessment of the nutritional risk by the STRONGkids Scale. The variables of basic information, clinical symptoms and laboratory test measurements etc. were compared between the two groups by using Student t test, Rank sum test or Chi-square test. Multivariate Logistic regression analysis were used to analyze nutritional risk factors. Results: Among 112 patient with TBM, 55 were males and 57 females. There were 62 cases in the nutritional risk group and 50 cases in the non-nutritional risk group. The proportion of cases with nutritional risk was 55.4% (62/112). Patients in the nutritional risk who lived in rural areas, had symptoms of brain nerve damage, convulsions, emaciation and anorexia, with a diagnosis time of ≥21 days, and the level of cerebrospinal fluid (CSF) protein were all higher than those in the non-nutritional risk group ((50 cases (80.6%) vs. 32 cases (64.0%), 20 cases (32.3%) vs.8 cases (16.0%), 33 cases (53.2%) vs. 15 cases (30.0%), 30 cases (48.4%) vs. 2 cases (4.0%), 59 cases (95.2%) vs. 1 case (2.0%),41 cases (66.1%) vs.18 cases (36.0%), 1 406 (1 079, 2 068) vs. 929 (683, 1 208) mg/L, χ2=3.91, 3.90, 6.10, 26.72, 98.58, 10.08, Z=4.35, all P<0.05). The levels of serum albumin,hemoglobin,lymphocyte count, white blood cell count, and CSF glucose were significantly lower in patients with nutritional risk ((36±5) vs. (41±4) g/L, (110±17) vs. (122±14) g/L, 1.4 (1.0, 2.0)vs. 2.3 (1.6, 3.8)×109/L, 7.8 (6.3, 10.0)×109 vs. 10.0 (8.3, 12.8)×109/L, 1.0 (0.8, 1.6) vs. 2.1 (1.3, 2.5) mmol/L, t=-6.15, -4.22, Z=-4.86, -3.92, -4.16, all P<0.05).Increased levels of serum albumin (OR=0.812, 95%CI:0.705-0.935, P=0.004) and lymphocyte count (OR=0.609, 95%CI:0.383-0.970, P=0.037) may reduce the nutritional risk of children with TBM; while convulsions (OR=3.853, 95%CI:1.116-13.308, P=0.033) and increased level of CSF protein (OR=1.001,95%CI:1.000-1.002, P=0.015) may increase the nutritional risk of children with TBM. Similarly, the rate of complications and drug-induced liver injury was higher in the nutritional risk group (47 cases (75.8%) vs. 15 cases(30.0%), 31 cases (50.0%) vs.8 cases (16.0%), χ2=23.50, 14.10, all P<0.05). Moreover, the length of hospital stay was also longer in the nutritional risk group ((27±13) vs. (18±7) d, t=4.38, P<0.05). Conclusions: Children with TBM have a high incidence of nutritional risk. Convulsive, the level of serum albumin, the level of lymphocyte count and CSF protein may affect the nutritional risk of children with TBM. The nutritional risk group has a high incidence of complications and heavy economic burden.It is necessary to carry out nutritional screening and nutritional support for children with TBM as early as possible.
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Affiliation(s)
- M Ren
- Department of Pediatric Infectious Diseases,West China Second Hospital, Sichuan University, Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, Chengdu 610041, China
| | - L X Chen
- Department of Pediatric Infectious Diseases,West China Second Hospital, Sichuan University, Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, Chengdu 610041, China
| | - M Shu
- Department of Pediatric Infectious Diseases,West China Second Hospital, Sichuan University, Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, Chengdu 610041, China
| | - X Li
- Department of Pediatric Infectious Diseases,West China Second Hospital, Sichuan University, Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, Chengdu 610041, China
| | - Y Y Li
- Department of Pediatric Infectious Diseases,West China Second Hospital, Sichuan University, Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, Chengdu 610041, China
| | - X L Zhong
- Department of Pediatric Infectious Diseases,West China Second Hospital, Sichuan University, Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, Chengdu 610041, China
| | - Y Zhu
- Department of Pediatric Infectious Diseases,West China Second Hospital, Sichuan University, Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, Chengdu 610041, China
| | - Q Guo
- Department of Pediatric Infectious Diseases,West China Second Hospital, Sichuan University, Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, Chengdu 610041, China
| | - Q Liao
- Department of Pediatric Infectious Diseases,West China Second Hospital, Sichuan University, Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, Chengdu 610041, China
| | - Y Wen
- Department of Pediatric Infectious Diseases,West China Second Hospital, Sichuan University, Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, Chengdu 610041, China
| | - S H Luo
- Department of Pediatric Infectious Diseases,West China Second Hospital, Sichuan University, Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, Chengdu 610041, China
| | - C M Wan
- Department of Pediatric Infectious Diseases,West China Second Hospital, Sichuan University, Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, Chengdu 610041, China
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Gao H, Lin Y, Wei J, Zhang Y, Pan H, Ren M, Li J, Huang L, Zhang X, Huang Q, Shen H. A novel extraction protocol of nano-polystyrene from biological samples. Sci Total Environ 2021; 790:148085. [PMID: 34111795 DOI: 10.1016/j.scitotenv.2021.148085] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Revised: 05/25/2021] [Accepted: 05/25/2021] [Indexed: 06/12/2023]
Abstract
Toxicological data demonstrate that nanoplastics (NPs) can cause direct adverse health effects. However, a method for quantifying NPs in biological samples is lacking to date. In this study, a diatomite associated coagulation-sedimentation extraction (CSE) protocol was developed to selectively enrich polystyrene nanoplastics (PS-NP) from microplastics (PS-MP) in the digest of animal tissues, which were then analyzed using pyrolysis gas chromatography-mass spectrometry. We demonstrate that 0.02 g of 7-μm diatomite can selectively adsorb 70-nm PS-NP in 5 mL oyster digest. The method works in the range of 0.006-5 μg PS-NP per 0.5 g wet weight tissue, which has been verified via samples of environmentally contaminated oysters and chow diet PS-NP-treated C57BL/6 mice (digestive tract, kidney, and liver tissues). The particle size-dependent colloidization or buoyancy theoretically supported the general CSE procedure. This work will pave the way for assessing human exposure to NPs and associated health risks.
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Affiliation(s)
- Hongying Gao
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen 361102, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yi Lin
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen 361102, China
| | - Jie Wei
- Department of Basic Medical Sciences, School of Medicine, Xiamen University, Xiamen 361102, China
| | - Yike Zhang
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen 361102, China
| | - Hong Pan
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen 361102, China
| | - Miaomiao Ren
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen 361102, China
| | - Jin Li
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen 361102, China
| | - Liuying Huang
- Fujian Key Laboratory of Advanced Materials, Department of Materials Science and Engineering College of Materials, Xiamen University, Xiamen 361102, China
| | - Xi Zhang
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
| | - Qingyu Huang
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
| | - Heqing Shen
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen 361102, China.
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Ren M, Ruan X, Gu L, Pexman-Fieth C, Kahler E, Yu Q. Ultra-low-dose estradiol and dydrogesterone: a phase III study for vasomotor symptoms in China. Climacteric 2021; 25:286-292. [PMID: 34402360 DOI: 10.1080/13697137.2021.1956894] [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: 10/20/2022]
Abstract
OBJECTIVE This study aimed to evaluate the efficacy and safety of ultra-low-dose estradiol plus dydrogesterone for vasomotor symptoms in postmenopausal women in China (trial registration CTR20160689). METHODS A total of 332 patients were randomized to continuous combined estradiol 0.5 mg + dydrogesterone 2.5 mg or placebo for 12 weeks. The primary efficacy endpoint was change in the number of hot flushes per day from baseline to end of treatment. Secondary efficacy endpoints included change in the number of moderate-to-severe hot flushes per day, menopausal symptoms from baseline and quality of life. RESULTS Between baseline and end of treatment, change in the mean number of hot flushes per day was -5.9 (95% confidence interval [CI] - 6.6, -5.2) with estradiol + dydrogesterone and -4.5 (95% CI -5.1, -3.8) with placebo, with a mean difference of -1.4 hot flushes per day (95% CI -2.2, -0.7; p < 0.001). Significant differences in favor of estradiol + dydrogesterone were also observed in several secondary efficacy endpoints. The study treatment was well tolerated. CONCLUSION Continuous combined estradiol 0.5 mg + dydrogesterone 2.5 mg reduced hot flushes in postmenopausal women in China. This ultra-low-dose regimen provides an additional option for women experiencing the vasomotor symptoms of menopause. These data are consistent with previous results in other populations.
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Affiliation(s)
- M Ren
- Department of Obstetrics and Gynecology, Zhongda Hospital Southeast University, Nanjing, People's Republic of China
| | - X Ruan
- Department of Gynecological Endocrinology, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, People's Republic of China
| | - L Gu
- Department of Gynecology, Nanjing Maternity and Child Health Care Hospital, Nanjing, People's Republic of China
| | - C Pexman-Fieth
- Global Clinical Development, Established Pharmaceuticals Division, Abbott GmbH, Wiesbaden, Germany
| | - E Kahler
- Global Biometrics, Established Pharmaceuticals Division, Abbott Laboratories GmbH, Hannover, Germany
| | - Q Yu
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Dongcheng District, Beijing, People's Republic of China
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Ren M, Sun W, Chen S. Combining machine learning models through multiple data division methods for PM 2.5 forecasting in Northern Xinjiang, China. Environ Monit Assess 2021; 193:476. [PMID: 34232403 DOI: 10.1007/s10661-021-09233-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Accepted: 06/22/2021] [Indexed: 06/13/2023]
Abstract
In this study, daily average PM2.5 forecasting models were developed and applied in the Northern Xinjiang, China, through combining the back propagation artificial neural network (BPANN) and multiple linear regression (MLR) with another BPANN model. The meteorological (daily average precipitation, pressure, relative humidity, temperature, and wind speed, daily maximum wind speed and sunshine hours on the same day) and air pollutant data (daily PM2.5, PM10, SO2, CO, NO2, and O3 concentrations on the previous day) in January and August of each year from 2015 to 2019 were used as candidate inputs. The optimal member and combining models were evaluated through the leave-one-out cross-validation (LOOCV), fivefold cross-validation, and hold-out methods. Twelve member models with optimal or sub-optimal performance were further used to develop the combining models. The performances of the BPANN and MLR member models were different using three data division methods. The models were evaluated more comprehensively through the LOOCV. The performances of the combining models were generally better than the member models. For both member and combining models, the PM2.5 forecasting model performance in August was generally better than in January. The correlation coefficient (R) for the validation set of the optimal combination model was about 0.87 in January and 0.946 in August. These results showed that combining linear and nonlinear models through multiple data division methods would be an effective tool to forecast PM2.5 concentrations.
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Affiliation(s)
- Miaomiao Ren
- School of Geography and Planning, Sun Yat-Sen University, Guangzhou, 510275, Guangdong, China
- School of Resources and Environmental Science, Xinjiang University, Urumqi, 830046, Xinjiang, China
| | - Wei Sun
- School of Geography and Planning, Sun Yat-Sen University, Guangzhou, 510275, Guangdong, China.
- Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, 519082, China.
| | - Shu Chen
- School of Geography and Planning, Sun Yat-Sen University, Guangzhou, 510275, Guangdong, China
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Huynh J, Cho M, Kim E, Ren M, Amaya-Chanaga C, Vogel A. P-78 Post hoc analysis in patients with unresectable hepatocellular carcinoma who progressed to Child-Pugh B liver function in the phase 3 REFLECT study of lenvatinib vs sorafenib. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.05.133] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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14
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Ren M, Sidiropoulou E, Tasakis RN, Donato E, Gonzalez‐Menendez I, Busse CE, Luck TJ, Dolnik A, Bullinger L, Trumpp A, Quintanilla‐Martinez L, Kreuz M, Chapuy B, Hübschmann D, Siebert R, Papavasiliou FN, Sander S. CYTIDINE DEAMINASES SHAPE THE GENOME OF GERMINAL CENTER B CELL DERIVED LYMPHOMA. Hematol Oncol 2021. [DOI: 10.1002/hon.18_2880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- M. Ren
- German Cancer Research Center (DKFZ)/National Center for Tumor Diseases Heidelberg (NCT) Division of Adaptive Immunity and Lymphoma Heidelberg Germany
| | - E. Sidiropoulou
- German Cancer Research Center (DKFZ)/National Center for Tumor Diseases Heidelberg (NCT) Division of Adaptive Immunity and Lymphoma Heidelberg Germany
| | - R. N. Tasakis
- German Cancer Research Center (DKFZ) Division of Immune Diversity Heidelberg Germany
| | - E. Donato
- German Cancer Research Center (DKFZ) and DKFZ‐ZMBH Alliance Division of Stem Cells and Cancer Heidelberg Germany
| | - I. Gonzalez‐Menendez
- Eberhard Karls University of Tübingen and Comprehensive Cancer Center Tübingen University Hospital Institute of Pathology and Neuropathology Department of Pathology Tübingen Germany
| | - C. E Busse
- German Cancer Research Center (DKFZ) Division of B cell Immunology Heidelberg Germany
| | - T. J Luck
- Campus Virchow Klinikum Berlin Charité – Universitätsmedizin Berlin corporate member of Freie Universität Berlin and Humboldt‐Universität zu Berlin Department of Hematology, Oncology, and Tumorimmunology Berlin Germany
| | - A. Dolnik
- Campus Virchow Klinikum Berlin Charité – Universitätsmedizin Berlin corporate member of Freie Universität Berlin and Humboldt‐Universität zu Berlin Department of Hematology, Oncology, and Tumorimmunology Berlin Germany
| | - L. Bullinger
- Campus Virchow Klinikum Berlin Charité – Universitätsmedizin Berlin corporate member of Freie Universität Berlin and Humboldt‐Universität zu Berlin Department of Hematology, Oncology, and Tumorimmunology Berlin Germany
| | - A. Trumpp
- German Cancer Research Center (DKFZ) and DKFZ‐ZMBH Alliance Division of Stem Cells and Cancer Heidelberg Germany
| | - L. Quintanilla‐Martinez
- Eberhard Karls University of Tübingen and Comprehensive Cancer Center Tübingen University Hospital Institute of Pathology and Neuropathology Department of Pathology Tübingen Germany
| | - M. Kreuz
- Universität Leipzig Institute for Medical Informatics Statistics and Epidemiology (IMISE) Leipzig Germany
| | - B. Chapuy
- University Medical Center Göttingen Department of Hematology and Medical Oncology Göttingen Germany
| | - D. Hübschmann
- German Cancer Research Center (DKFZ)/National Center for Tumor Diseases Heidelberg (NCT) Heidelberg Institute for Stem Cell Technology and Experimental Medicine (HI‐STEM gGmbH) Heidelberg Germany
| | - R. Siebert
- Ulm University and Ulm University Medical Center Department of Human Genetics Ulm Germany
| | - F N. Papavasiliou
- German Cancer Research Center (DKFZ) Division of Immune Diversity Heidelberg Germany
| | - S. Sander
- German Cancer Research Center (DKFZ)/National Center for Tumor Diseases Heidelberg (NCT) Division of Adaptive Immunity and Lymphoma Heidelberg Germany
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Hu J, Ren M, Cai X, Shen XX, Dai B, Kong YY. [Clinicopathological features and prognosis of nodal nevi]. Zhonghua Bing Li Xue Za Zhi 2021; 50:494-499. [PMID: 33915657 DOI: 10.3760/cma.j.cn112151-20200817-00648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the clinicopathological characteristics, differential diagnosis and prognosis of nodal nevi (NN). Methods: Eighteen cases of NN diagnosed at Fudan University Shanghai Cancer Center, Shanghai, China from 2009 to 2019 were collected. The clinicopathological characteristics and follow-up data were retrospectively analyzed. Histopathologic evaluation and immunohistochemical studies were carried out. The Vysis Melanoma FISH Probe Kit, combined with 9p21(CDKN2A) and 8q24(MYC) assays were performed in 2 cases. Results: There were 2 males and 16 females in the case series. The age of the patients ranged from 36 to 70 years (average 48.2 years). Fifteen cases located in axillary lymph nodes, 1 in inguinal lymph node, 1 in cervical lymph node, and 1 in external iliac lymph node. NN was found in only one lymph node in each case. Histologically, the nevus cell aggregates were found in capsule of lymph nodes in all cases. Nevus cells grew along the capsule into trabeculae in 8 cases, with 3 of them scattered in parenchyma. In one of these 8 cases, nevus cell aggregates massively occupied the parenchyma of the lymph node. The largest lesions in the 18 NN cases measured from 0.2 to 6.5 mm. All of the NN cases were classified as conventional nevi. The majority of the cases were composed of uniform nevus-like cells and identical to cutaneous pigmented nevi without atypia, necrosis, or mitosis. In the NN case that massively occupied parenchyma, some areas had abundant nevus cells and displayed atypical cytologic features, including increased nucleo-cytoplasmic ratio, small nucleoli, and occasional mitotic figures. Immunohistochemistry was performed in 13 cases. All of them were positive for S-100, SOX10, Melan A, and p16. HMB45 showed weak staining in rare cells of only one case out of 13 cases. Ki-67 labeling index <1% was found in all 13 cases. Additionally, the results of FISH assay were both negative. All patients were followed up for 13 to 129 months (median 31.5 months). Except that one patient died of the salivary gland carcinoma, the other patients all survived without tumor during the follow-up period. Conclusions: NN is a benign melanocytic lesion in lymph node. It is important to distinguish NN from metastatic melanoma when nevus cells occur in parenchyma and subcapsular sinus of lymph nodes, or show some atypical cytologic features. The morphology of bland nevus cells in capsule and trabeculae is a valuable clue. Besides, immunohistochemical profiling and FISH assay are helpful in the differential diagnosis.
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Affiliation(s)
- J Hu
- Department of Pathology, Fudan University Shanghai Cancer Center; Department of Oncology, Shanghai Medical College, Fudan University; Institute of Pathology, Fudan University, Shanghai 200032, China
| | - M Ren
- Department of Pathology, Fudan University Shanghai Cancer Center; Department of Oncology, Shanghai Medical College, Fudan University; Institute of Pathology, Fudan University, Shanghai 200032, China
| | - X Cai
- Department of Pathology, Fudan University Shanghai Cancer Center; Department of Oncology, Shanghai Medical College, Fudan University; Institute of Pathology, Fudan University, Shanghai 200032, China
| | - X X Shen
- Department of Pathology, Fudan University Shanghai Cancer Center; Department of Oncology, Shanghai Medical College, Fudan University; Institute of Pathology, Fudan University, Shanghai 200032, China
| | - B Dai
- Department of Urology, Fudan University Shanghai Cancer Center; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - Y Y Kong
- Department of Pathology, Fudan University Shanghai Cancer Center; Department of Oncology, Shanghai Medical College, Fudan University; Institute of Pathology, Fudan University, Shanghai 200032, China
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Zhang ZC, Hu J, Kong YY, Ren M, Cai X. [Application of immunohistochemical staining of bcl-2, Ber-EP4, CD10, CK20, and Ki-67 in differential diagnosis between trichoblastoma and basal cell carcinoma]. Zhonghua Bing Li Xue Za Zhi 2021; 50:376-381. [PMID: 33831998 DOI: 10.3760/cma.j.cn112151-20200722-00587] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To study the utility of immunohistochemistry (IHC) in differential diagnosis between trichoblastoma (TB) and basal cell carcinoma (BCC). Methods: Fifty-eight cases of TB and 40 cases of BCC were collected at Fudan University Shanghai Cancer Center from January 2009 to December 2019 and retrospectively analyzed by IHC for bcl-2, Ber-EP4, CD10, CK20 and Ki-67. Fisher exact test was performed for statistical analysis. Results: Twenty-five (43.1%) TBs and 5 (12.5%) BCCs showed bcl-2 staining in the outermost layer of the epithelial nests, the difference was statistically significant (P<0.01). The proportion of cases with bcl-2 staining>75% of epithelial cells in BCC group was much higher than that in TB group (40% vs. 12.1%; P<0.01). BCC group showed larger proportions with Ber-EP4 staining>75%, 51%-75% of epithelial cells than TB group (12.5% vs. 1.7%, 37.5% vs. 8.6%;P<0.05). Fifty-five (94.8%) TBs demonstrated CD10 expression in the follicular stroma, while only 16 (40.0%) BCCs showed focal or scattered CD10 expression in reactive fibrous stroma (P<0.01). CK20 expression was present in 37 (63.8%) TBs with scattered pattern, but BCCs exhibited no CK20 staining except for only one case (2.5%) showing focal staining (P<0.01). Compared with TB group, the BCC group included more cases with Ki-67 labeling index ≥15% on average and ≥25% in hotspot areas (P<0.05). Conclusion: IHC is helpful in differential diagnosis between TB and BCC. Scattered CK20 staining pattern and stromal CD10 expression support the diagnosis of TB. Bcl-2 staining limited to the outermost layer of the proliferation is more likely to be found in TB. In contrast, Ber-EP4 positivity and higher Ki-67 labeling index tend to be present in BCC.
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Affiliation(s)
- Z C Zhang
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai 200032, China
| | - J Hu
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai 200032, China
| | - Y Y Kong
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai 200032, China
| | - M Ren
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai 200032, China
| | - X Cai
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai 200032, China
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Hu B, Huang H, Hu S, Ren M, Wei Q, Tian X, Esmail Abdalla Elzaki M, Bass C, Su J, Reddy Palli S. Changes in both trans- and cis-regulatory elements mediate insecticide resistance in a lepidopteron pest, Spodoptera exigua. PLoS Genet 2021; 17:e1009403. [PMID: 33690635 PMCID: PMC7978377 DOI: 10.1371/journal.pgen.1009403] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 03/19/2021] [Accepted: 02/09/2021] [Indexed: 02/07/2023] Open
Abstract
The evolution of insect resistance to insecticides is frequently associated with overexpression of one or more cytochrome P450 enzyme genes. Although overexpression of CYP450 genes is a well-known mechanism of insecticide resistance, the underlying regulatory mechanisms are poorly understood. Here we uncovered the mechanisms of overexpression of the P450 gene, CYP321A8 in a major pest insect, Spodoptera exigua that is resistant to multiple insecticides. CYP321A8 confers resistance to organophosphate (chlorpyrifos) and pyrethroid (cypermethrin and deltamethrin) insecticides in this insect. Constitutive upregulation of transcription factors CncC/Maf are partially responsible for upregulated expression of CYP321A8 in the resistant strain. Reporter gene assays and site-directed mutagenesis analyses demonstrated that CncC/Maf enhanced the expression of CYP321A8 by binding to specific sites in the promoter. Additional cis-regulatory elements resulting from a mutation in the CYP321A8 promoter in the resistant strain facilitates the binding of the orphan nuclear receptor, Knirps, and enhances the promoter activity. These results demonstrate that two independent mechanisms; overexpression of transcription factors and mutations in the promoter region resulting in a new cis-regulatory element that facilitates binding of the orphan nuclear receptor are involved in overexpression of CYP321A8 in insecticide-resistant S. exigua. Insect pests developing resistance to insecticides used for their control is a major problem in agriculture. Many pests including the beet armyworm, Spodoptera exigua have developed resistance to insecticides used for their control. Information on the mechanisms of resistance would help in resistance management programs. Overexpression of detoxifying enzymes were associated with insecticide resistance, but their functions and regulatory mechanisms are still unidentified. The expression levels of P450 genes between susceptible and resistant strains of S. exigua were compared and CYP321A8 was identified as the major contributor to resistance to organophosphate and pyrethroid insecticides. Further studies uncovered two independent but synergistic mechanisms; constitutive upregulation of b-Zip transcription factors and mutations in the promoter that facilitates the binding of an orphan nuclear receptor, Knirps contributing to increase in the expression of CYP321A8 and resistance to multiple insecticides in S. exigua.
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Affiliation(s)
- Bo Hu
- Key Laboratory of Integrated Management of Crop Diseases and Pests (Ministry of Education), College of Plant Protection, Nanjing Agricultural University, Nanjing, China
| | - He Huang
- Key Laboratory of Integrated Management of Crop Diseases and Pests (Ministry of Education), College of Plant Protection, Nanjing Agricultural University, Nanjing, China
| | - Songzhu Hu
- Key Laboratory of Integrated Management of Crop Diseases and Pests (Ministry of Education), College of Plant Protection, Nanjing Agricultural University, Nanjing, China
| | - Miaomiao Ren
- Key Laboratory of Integrated Management of Crop Diseases and Pests (Ministry of Education), College of Plant Protection, Nanjing Agricultural University, Nanjing, China
| | - Qi Wei
- Key Laboratory of Integrated Management of Crop Diseases and Pests (Ministry of Education), College of Plant Protection, Nanjing Agricultural University, Nanjing, China
| | - Xiangrui Tian
- Key Laboratory of Integrated Management of Crop Diseases and Pests (Ministry of Education), College of Plant Protection, Nanjing Agricultural University, Nanjing, China
| | | | - Chris Bass
- College of Life and Environmental Sciences, Biosciences, University of Exeter, Penryn Campus, Penryn, United Kingdom
| | - Jianya Su
- Key Laboratory of Integrated Management of Crop Diseases and Pests (Ministry of Education), College of Plant Protection, Nanjing Agricultural University, Nanjing, China
- * E-mail: (JS); (SRP)
| | - Subba Reddy Palli
- Department of Entomology, University of Kentucky, Lexington, Kentucky, United States of America
- * E-mail: (JS); (SRP)
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Yin WZ, Yang QW, Niu K, Ren M, He D, Song WZ. Validation of reference genes for the normalization of RT-qPCR expression studies on human laryngeal cancer and hypopharyngeal cancer. Eur Rev Med Pharmacol Sci 2020; 23:4199-4209. [PMID: 31173291 DOI: 10.26355/eurrev_201905_17924] [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] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Selecting stably expressed reference genes is crucial for evaluating real-time quantitative polymerase chain reaction (RT-qPCR) data via the relative quantification method. In the present-day study, our aim was to select optimal reference genes (RGs) for the investigation of target gene (TG) expression profiling in cancerous human laryngeal and hypopharyngeal tissues. PATIENTS AND METHODS 12 cancerous laryngeal tissues and 10 cancerous hypopharyngeal tissues were investigated. The expression characteristics of 11 reference genes (18S rRNA, GAPDH, B2M, ACTB, TBP, ALAS1, RPL29, HMBS, HPRT1, GUSB, and PUM1), which were commonly used in RT-qPCR for the analysis of gene expression, were investigated using the geNorm, NormFinder, and BestKeeper algorithm programs. RESULTS HMBS, ALAS1, and B2M were suggested as optimal RGs for studying human laryngeal and hypopharyngeal cancerous tissues together, laryngeal cancerous tissue by itself, and hypopharyngeal cancerous tissue by itself, respectively. If 2 or more reference genes are needed to achieve better standardization, 3 reference genes can optimally be used in combination to improve the accuracy of relative quantitation normalization. The recommended combinations for studying human laryngeal and hypopharyngeal cancerous tissues together, laryngeal cancerous tissue by itself, and hypopharyngeal cancerous tissue by itself were HMBS + HPRT1 + GUSB, ALAS1 + GUSB + HMBS, and B2M + HPRT1 + TBP, respectively. CONCLUSIONS The recommended reference genes could be used to improve the accuracy of gene expression studies on the molecular mechanisms of cancerous human laryngeal and hypopharyngeal tissues. The selected combination of reference genes can effectively improve the accuracy of the relative quantitative diagnosis of gene expression levels, such as messenger RNA, circular RNA, and long-noncoding RNA.
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Affiliation(s)
- W-Z Yin
- Department of Otorhinolaryngology, Head and Neck Surgery, First Clinical Hospital, Jilin University, Changchun, China.
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Lee CH, Adachi Y, Ikezawa H, Li S, Funahashi Y, Minoshima Y, Kubiak P, Perini R, Ren M, Smith A, Motzer R. 719P Correlative serum biomarker analyses: Lenvatinib (LEN) plus pembrolizumab (PEMBRO) in a phase Ib/II trial in advanced renal cell carcinoma (RCC). Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.791] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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20
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Chen J, Liu S, Tang Y, Zhang X, Cao M, Xiao Z, Ren M, Chen T. Diagnostic performance of CT for differentiating peritoneal tuberculosis from peritoneal carcinomatosis: a systematic review and meta-analysis. Clin Radiol 2020; 75:396.e7-396.e14. [PMID: 32081347 DOI: 10.1016/j.crad.2019.12.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Accepted: 12/12/2019] [Indexed: 01/01/2023]
Abstract
AIM To undertake a systematic review and meta-analysis of the diagnostic performance of CT for differentiating peritoneal tuberculosis (PTB) from peritoneal carcinomatosis (PC). MATERIAL AND METHODS PubMed, Embase, the Web of Science, and the Cochrane Library were searched for papers published before 23 July 2019. The methodological quality of the studies was analysed. Overlapping descriptors used in different studies to denote the same image finding were subsumed under a single CT feature. Sensitivity, specificity, and positive and negative likelihood ratios were pooled. A summary receiver operating characteristic curve (sROC) was constructed and the area under the curve (AUC) of the included studies was calculated when possible. RESULTS Six studies were included and 17 CT features were analysed. The pooled sensitivity and specificity of smooth peritoneal thickening were 59% (95% CI: 52-66%) and 84% (95% CI: 79-88%), respectively. The AUC of smooth peritoneal thickening was 0.83. Omentum line/rim, lymph node necrosis or calcification, and mesenteric macro nodules had a pooled specificity ranging from 95% to 100% and a pooled sensitivity ranging from 12% to 67%. The other 12 signs had a pooled sensitivity ranging from 21% to 79% and a pooled specificity ranging from 19% to 81%. Omentum involvement (cake-like pattern) showed a threshold-effect, so only the AUC (=0.70) was calculated. CONCLUSIONS Smooth peritoneal thickening shows fairly good diagnostic accuracy, while omentum rim/line, lymph nodes necrosis or calcification, mesenteric macro nodules have good specificity but limited sensitivity. The informative features summarised in this study may aid clinical practice and future studies.
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Affiliation(s)
- J Chen
- Department of Radiology, Zhongshan Affiliated Hospital, Guangzhou University of Chinese Medicine, Zhongshan, 528400, PR China.
| | - S Liu
- Department of Radiology, Zhongshan Affiliated Hospital, Guangzhou University of Chinese Medicine, Zhongshan, 528400, PR China
| | - Y Tang
- Department of Radiology, Zhongshan Affiliated Hospital, Guangzhou University of Chinese Medicine, Zhongshan, 528400, PR China
| | - X Zhang
- Department of Radiology, Zhongshan Affiliated Hospital, Guangzhou University of Chinese Medicine, Zhongshan, 528400, PR China
| | - M Cao
- Department of Radiology, Zhongshan Affiliated Hospital, Guangzhou University of Chinese Medicine, Zhongshan, 528400, PR China
| | - Z Xiao
- Department of Radiology, Zhongshan Affiliated Hospital, Guangzhou University of Chinese Medicine, Zhongshan, 528400, PR China
| | - M Ren
- Department of Radiology, Zhongshan Affiliated Hospital, Guangzhou University of Chinese Medicine, Zhongshan, 528400, PR China
| | - T Chen
- Department of Radiology, Zhongshan Affiliated Hospital, Guangzhou University of Chinese Medicine, Zhongshan, 528400, PR China
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Tahara M, Kiyota N, Hoff A, Badiu C, Owonikoko T, Dutcus C, Suzuki T, Ren M, Misir S, Wirth L. Impact of lung metastasis on overall survival (OS) in the phase III SELECT study with lenvatinib (LEN) in patients (pts) with radioiodine refractory differentiated thyroid cancer (RR-DTC). Ann Oncol 2019. [DOI: 10.1093/annonc/mdz267] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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22
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Hu B, Huang H, Wei Q, Ren M, Mburu DK, Tian X, Su J. Transcription factors CncC/Maf and AhR/ARNT coordinately regulate the expression of multiple GSTs conferring resistance to chlorpyrifos and cypermethrin in Spodoptera exigua. Pest Manag Sci 2019; 75:2009-2019. [PMID: 30610747 DOI: 10.1002/ps.5316] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Revised: 12/18/2018] [Accepted: 12/27/2018] [Indexed: 05/21/2023]
Abstract
BACKGROUND Glutathione S-transferases (GSTs) are a superfamily of multifunctional dimeric proteins existing in both prokaryotic and eukaryotic organisms. They are involved in the detoxification of both endogenous and exogenous electrophiles, including insecticides. However, the molecular mechanisms underlying the regulation of GST genes in insects are poorly understood. RESULTS We first identified at least three GST genes involved in resistance to the insecticides chlorpyrifos and cypermethrin. Analysis of upstream sequences revealed that three GSTs (SeGSTo2, SeGSTe6 and SeGSTd3) harbor the same cap 'n' collar C/muscle aponeurosis fibromatosis (CncC/Maf) binding site, and SeGSTo2 and SeGSTe6 contain the aryl hydrocarbon receptor/aryl hydrocarbon receptor nuclear translocator (AhR/ARNT) binding site. Luciferase reporter assay showed co-transfection of reporter plasmid containing the SeGSTe6 promoter with CncC and/or Maf expressing constructs significantly boosted transcription. Similarly, AhR and/or ARNT expressing constructs also significantly increased the promoter activities. The co-transfection of mutated reporter plasmid with CncC/Maf or AhR/ARNT did not increase transcription activity anymore. Constitutive over-expression of CncC, Maf and AhR was also found in the HZ16 strain, which might be the molecular mechanism for up-regulated expression of multiple detoxification genes conferring resistance to insecticides. CONCLUSION These results suggest that CncC/Maf and AhR/ARNT coordinately regulate the expression of multiple GST genes involved in insecticide resistance in Spodoptera exigua. © 2019 Society of Chemical Industry.
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Affiliation(s)
- Bo Hu
- Key Laboratory of Integrated Management of Crop Diseases and Pests (Ministry of Education), College of Plant Protection, Nanjing Agricultural University, Nanjing, China
| | - He Huang
- Key Laboratory of Integrated Management of Crop Diseases and Pests (Ministry of Education), College of Plant Protection, Nanjing Agricultural University, Nanjing, China
| | - Qi Wei
- Key Laboratory of Integrated Management of Crop Diseases and Pests (Ministry of Education), College of Plant Protection, Nanjing Agricultural University, Nanjing, China
| | - Miaomiao Ren
- Key Laboratory of Integrated Management of Crop Diseases and Pests (Ministry of Education), College of Plant Protection, Nanjing Agricultural University, Nanjing, China
| | - David K Mburu
- Key Laboratory of Integrated Management of Crop Diseases and Pests (Ministry of Education), College of Plant Protection, Nanjing Agricultural University, Nanjing, China
| | - Xiangrui Tian
- Key Laboratory of Integrated Management of Crop Diseases and Pests (Ministry of Education), College of Plant Protection, Nanjing Agricultural University, Nanjing, China
| | - Jianya Su
- Key Laboratory of Integrated Management of Crop Diseases and Pests (Ministry of Education), College of Plant Protection, Nanjing Agricultural University, Nanjing, China
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Reich K, Blauvelt A, Armstrong A, Langley R, de Vera A, Kolbinger F, Spindeldreher S, Ren M, Bruin G. Secukinumab, a fully human anti‐interleukin‐17A monoclonal antibody, exhibits low immunogenicity in psoriasis patients treated up to 5 years. J Eur Acad Dermatol Venereol 2019; 33:1733-1741. [DOI: 10.1111/jdv.15637] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Accepted: 04/01/2019] [Indexed: 01/11/2023]
Affiliation(s)
- K. Reich
- Translational Research in Inflammatory Skin Diseases Institute for Health Services Research in Dermatology and Nursing University Medical Center Hamburg‐Eppendorf Hamburg Germany
- Skinflammation® Center Hamburg Germany
- Dermatologikum Berlin BerlinGermany
| | - A. Blauvelt
- Oregon Medical Research Center Portland OR USA
| | - A. Armstrong
- Keck School of Medicine University of Southern California Los Angeles CA USA
| | - R.G. Langley
- Division of Clinical Dermatology and Cutaneous Science Dalhousie University Halifax Nova Scotia Canada
| | | | - F. Kolbinger
- Novartis Institutes for Biomedical Research Basel Switzerland
| | | | - M. Ren
- China Novartis Institutes for Biomedical Research Shanghai China
| | - G. Bruin
- Novartis Institutes for Biomedical Research Basel Switzerland
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24
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Feng Z, Chen Q, Ren M, Tian Z, Gong Y. CD40L inhibits cell growth of THP-1 cells by suppressing the PI3K/Akt pathway [Corrigendum]. Onco Targets Ther 2019; 12:4223. [PMID: 31213840 PMCID: PMC6549415 DOI: 10.2147/ott.s213952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Accepted: 04/30/2019] [Indexed: 11/23/2022] Open
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Ren M, Wu F, Wang D, Li LY, Chang JJ, Lin Q. Molecular Typing of Cryptosporidium Species Identified in Fecal Samples of Yaks ( Bos grunniens) of Qinghai Province, China. J Parasitol 2019; 105:195-198. [PMID: 30835169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023] Open
Abstract
The frequency of Cryptosporidium infection in yaks from Qinghai province, People's Republic of China, was determined from examination of 1,027 fecal samples collected from 979 adult yaks and 48 yak calves during 4 seasons from 7 geographic areas within the province. PCR amplification of extracted DNA was used to characterize the different species of Cryptosporidium oocysts isolated by fecal examination. Twenty-six (2.53%) positive samples were identified and successfully sequenced: 17 Cryptosporidium ryanae (65.38%), 8 Cryptosporidium bovis (30.77%), and 1 Cryptosporidium baileyi (3.85%). The results of the study indicate that autumn is the primary season for transmission of Cryptosporidium to susceptible yak calves given the favorable temperatures and higher altitude of Qinghai province. To our knowledge, C. baileyi, a species predominately associated with birds (avian hosts), is described for the first time in yaks.
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Affiliation(s)
- M Ren
- 1 State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining, Qinghai Province 810016, People's Republic of China
- 2 College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province 712100, People's Republic of China
| | - F Wu
- 3 College of Animal Sciences, Zhejiang Provincial Key Laboratory of Preventive Veterinary Medicine, Zhejiang University, Hangzhou, Zhejiang 310058, People's Republic of China
| | - D Wang
- 2 College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province 712100, People's Republic of China
| | - L Y Li
- 2 College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province 712100, People's Republic of China
| | - J J Chang
- 4 College of Agriculture and Animal Husbandry, Qinghai University, Xining, Qinghai Province 810016, People's Republic of China
| | - Q Lin
- 1 State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining, Qinghai Province 810016, People's Republic of China
- 2 College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province 712100, People's Republic of China
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Ren J, Ren M, Kong YY, Cai X, Kong JC. [Clinicopathological features and prognosis of ALK-positive Spitz tumors]. Zhonghua Bing Li Xue Za Zhi 2019; 48:215-219. [PMID: 30831648 DOI: 10.3760/cma.j.issn.0529-5807.2019.03.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the clinicopathologic features and prognosis of ALK-positive Spitz tumors. Methods: Thirteen patients with ALK-positive Spitz tumors diagnosed at Shanghai Cancer Center, Fudan University from October 2016 to December 2017 were collected. All cases were routinely evaluated histopathological features in HE staining and detected ALK protein expression by immunohistochemistry. The ALK fusions of 7 cases were confirmed by fluorescence in situ hybridization (FISH).Follow-up data was collected. Results: The age of patients including 2 males and 11 females ranged from 4 to 47 years (mean 25 years). 12 patients were diagnosed with atypical Spitz tumors and 1 patient was diagnosed with Spitz nevus. Clinically, most lesions presented as papules or nodules, while a few lesions presented as plaques. Histologically, most tumors were exophytic (9/13). More than half of the tumors were amelanotic and the junctional component was mainly composed of melanocytic nests. Kamino bodies were not found. The bases of the tumors were mainly wedge-shaped (5/13) and flat (7/13). Eight tumors displayed mixed cell types, while 5 tumors were composed of only spindle cells. All the tumors showed a plexiform and/or intersecting fascicular growth pattern, and perineural extension was observed in 3 tumors. ALK immunohistochemistry showed diffuse and intense cytoplasmic staining in 13 cases, and 7 of them were detected by FISH to confirm the presence of ALK fusions. All patients were followed up for 7 to 21 months (median=12), with no recurrence or lymph node dissemination. Conclusions: Spitz tumors with ALK fusions have their special histopathologic features.ALK fusions mainly occur in Spitz nevi and atypical Spitz tumors. The follow-up data of the existing literatures and our research indicates that the prognosis of ALK-positive Spitz tumors may be good.
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Affiliation(s)
- J Ren
- Department of Pathology, Shanghai Cancer Center, Fudan University and Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - M Ren
- Department of Pathology, Shanghai Cancer Center, Fudan University and Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - Y Y Kong
- Department of Pathology, Shanghai Cancer Center, Fudan University and Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - X Cai
- Department of Pathology, Shanghai Cancer Center, Fudan University and Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - J C Kong
- Clinical Pathological Diagnosis Center of Fudan University, Shanghai 200032, China
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Ren M, Wu F, Wang D, Li LY, Chang JJ, Lin Q. Molecular Typing of Cryptosporidium Species Identified in Fecal Samples of Yaks (Bos Grunniens) of Qinghai Province, China. J Parasitol 2019. [DOI: 10.1645/18-62] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Affiliation(s)
- M. Ren
- State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining, Qinghai Province 810016, People's Republic of China
| | - F. Wu
- College of Animal Sciences, Zhejiang Provincial Key Laboratory of Preventive Veterinary Medicine, Zhejiang University, Hangzhou, Zhejiang 310058, People's Republic of China
| | - D. Wang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province 712100, People's Republic of China
| | - L. Y. Li
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province 712100, People's Republic of China
| | - J. J. Chang
- College of Agriculture and Animal Husbandry, Qinghai University, Xining, Qinghai Province 810016, People's Republic of China
| | - Q. Lin
- State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining, Qinghai Province 810016, People's Republic of China
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Hu B, Hu S, Huang H, Wei Q, Ren M, Huang S, Tian X, Su J. Insecticides induce the co-expression of glutathione S-transferases through ROS/CncC pathway in Spodoptera exigua. Pestic Biochem Physiol 2019; 155:58-71. [PMID: 30857628 DOI: 10.1016/j.pestbp.2019.01.008] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2018] [Revised: 01/15/2019] [Accepted: 01/19/2019] [Indexed: 05/21/2023]
Abstract
Glutathione S-transferases (GSTs) are a family of multifunctional enzymes that are involved in detoxification of electrophilic toxic compounds. Although the co-induced expression of GST genes by insecticides in insects has been documented in recent years, the underlying regulatory mechanisms are not understood. In this study, a total of thirty-one cytosolic S. exigua GSTs (SeGSTs) was cloned and identified. The bioinformatics and gene expression patterns were also analyzed. Out of them, SeGSTe9, SeGSTs6, SeGSTe1, SeGSTe6, SeGSTe8, SeGSTe14, and SeGSTd1 were significantly co-expressed following exposure to three insecticides (lambda-cyhalothrin, chlorpyrifos and chlorantraniliprole). The analysis of upstream sequences revealed that all of these seven SeGSTs harbored CncC/Maf binding site. The luciferase reporter assay showed that the pGL3-SeGST promoter construct exhibited a significant increase in luciferase activities after exposure to insecticides, and mutation of CncC/Maf binding site diminish the induction effect. These data indicate that CncC/Maf pathway regulates the co-expression of GST genes in response to different insecticides in S. exigua. Insecticides significantly enhanced the ROS content and treatment with the ROS inhibitor N-acetylcysteine (NAC) decreased the insecticide-induced luciferase activities of the PGL3-GSTe6 promoter construct, but not the CncC-mutated construct. These results indicate that ROS mediates GST gene expression after exposure to insecticides through CncC/Maf pathway. Overall, these data show that insecticides induce the co-expression of glutathione S-transferases through the ROS/CncC pathway in S. exigua.
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Affiliation(s)
- Bo Hu
- Key Laboratory of Integrated Management of Crop Diseases and Pests (Ministry of Education), College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China
| | - Songzhu Hu
- Key Laboratory of Integrated Management of Crop Diseases and Pests (Ministry of Education), College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China
| | - He Huang
- Key Laboratory of Integrated Management of Crop Diseases and Pests (Ministry of Education), College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China
| | - Qi Wei
- Key Laboratory of Integrated Management of Crop Diseases and Pests (Ministry of Education), College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China
| | - Miaomiao Ren
- Key Laboratory of Integrated Management of Crop Diseases and Pests (Ministry of Education), College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China
| | - Sufang Huang
- Key Laboratory of Integrated Management of Crop Diseases and Pests (Ministry of Education), College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China
| | - Xiangrui Tian
- Key Laboratory of Integrated Management of Crop Diseases and Pests (Ministry of Education), College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China
| | - Jianya Su
- Key Laboratory of Integrated Management of Crop Diseases and Pests (Ministry of Education), College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China.
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Ren M, Kong YY, Shen XX, Cai X, Kong JC. [Lentigo maligna and lentigo maligna melanoma: a clinicopathologic analysis of twenty-four cases]. Zhonghua Bing Li Xue Za Zhi 2018; 47:769-774. [PMID: 30317732 DOI: 10.3760/cma.j.issn.0529-5807.2018.10.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To study the clinicopathologic features, differential diagnosis and prognosis of lentigo maligna (LM) and lentigo maligna melanoma (LMM). Methods: Histopathologic evaluation and immunohistochemical study by HRP multimer method were carried out in 24 cases of LM and LMM from 2012 to 2017 at Fudan University Shanghai Cancer Center. The clinical information and follow-up data were analyzed. Results: Of total 24 cases, there were 7 cases of LM and 17 cases of LMM; 10 males and 14 females. The age of patients ranged from 32 to 88 years (mean 67 years). The male-to-female ratio was 1.0∶1.4. Tumors were all located on head and face. Clinically, all patients presented with mottled light brown or sepia macule located on head and face for a long time, and some of them followed by nodules or ulceration within the lesion. The diameter of lesions ranged from 0.5 to 3.0 cm. Microscopically, LM and in-situ component of LMM were all characterized by a predominantly junctional proliferation of atypical melanocytes with marked pleomorphism, frequently extending down the walls of hair follicles and sweat ducts. Multinucleate cells were frequently present. The invasive components of LMM mainly consisted of atypical melanocytic spindle cells (13 cases, 76.5%), and the mean Breslow thickness was 1.2 mm (0.1-2.7 mm). The lesions of LM/LMM were generally associated with severe actinic damage, scattered infiltration of lymphocytes and melanophages. Statistically, the number of cases whose diameter of lesion ≥0.6 cm, mitotic rates ≥4/mm(2) and nests of melanocytes within epidermis in group of LMM were significantly more than those in group of LM. Immunohistochemically, atypical melanocytes in LM and LMM were generally positive for S-100, HMB45, PNL2, Melan A and SOX-10. Follow-up was available in all cases, ranging from 1 to 64 months. Only one out of 23 patients with wide surgical excision had local recurrence, and the remaining 22 patients were all alive with no evidence of disease. One LM patient who was merely treated with biopsy was alive with disease progression after 20 months follow-up. Conclusions: LM/LMM is a special subtype of melanoma predominantly located on the sun-exposed skin of elderly people. Recognition of its specific histologic features can help distinguish with sun-damaged diseases and other subtypes of melanoma. The prognosis of LM/LMM patients treated with surgical excision is considered relatively favorable. However, long term follow-up should be recommended in patients with LM/LMM because of high recurrence rates indicated by previous studies.
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Affiliation(s)
- M Ren
- Department of Pathology, Fudan University Shanghai Cancer Center; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
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Finn R, Kudo M, Cheng AL, Wyrwicz L, Ngan R, Blanc J, Baron A, Vogel A, Ikeda M, Piscaglia F, Han KH, Qin S, Minoshima Y, Kanekiyo M, Ren M, Dairiki R, Tamai T, Dutcus C, Funahashi Y, Evans T. Final analysis of serum biomarkers in patients (pts) from the phase III study of lenvatinib (LEN) vs sorafenib (SOR) in unresectable hepatocellular carcinoma (uHCC) [REFLECT]. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy269.057] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Ren M, Niu J, Hu B, Wei Q, Zheng C, Tian X, Gao C, He B, Dong K, Su J. Block of Kir channels by flonicamid disrupts salivary and renal excretion of insect pests. Insect Biochem Mol Biol 2018; 99:17-26. [PMID: 29842935 DOI: 10.1016/j.ibmb.2018.05.007] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Revised: 05/23/2018] [Accepted: 05/23/2018] [Indexed: 06/08/2023]
Abstract
Flonicamid is a selective insecticide for the control of sap-sucking insects; it exerts toxic effects by inhibiting insect feeding. However, its molecular target remains elusive. In this study, we functionally characterized NlKir1 channels of the brown planthopper (Nilaparvata lugens) in HEK293 cells. Homomeric NlKir1 channels generated inward-rectifying K+ currents. Flonicamid inhibited NlKir1 channels at nanomolar concentrations. Furthermore, flonicamid inhibited honeydew and salivary secretions of planthoppers, and reduced the renal excretion of female mosquitoes in a dose-dependent manner. The inhibitory effect of flonicamid on fluid secretion of isolated Malpighian tubules from Culex pipiens pullens was comparable to that of the selective Kir1 inhibitor. The observed physiological alterations by flonicamid are likely mediated by Kir1 channels and could lead to the disruption of feeding behaviors and eventually lethality. Our study establishes the Kir1 channel as the target of flonicamid and provided new insights into the mode of action of flonicamid.
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Affiliation(s)
- Miaomiao Ren
- Key Laboratory of Integrated Management of Crop Diseases and Pests (Ministry of Education), College of Plant Protection, Nanjing Agricultural University, Nanjing, 210095, China
| | - Jianguo Niu
- Key Laboratory of Integrated Management of Crop Diseases and Pests (Ministry of Education), College of Plant Protection, Nanjing Agricultural University, Nanjing, 210095, China
| | - Bo Hu
- Key Laboratory of Integrated Management of Crop Diseases and Pests (Ministry of Education), College of Plant Protection, Nanjing Agricultural University, Nanjing, 210095, China
| | - Qi Wei
- Key Laboratory of Integrated Management of Crop Diseases and Pests (Ministry of Education), College of Plant Protection, Nanjing Agricultural University, Nanjing, 210095, China
| | - Cheng Zheng
- Key Laboratory of Integrated Management of Crop Diseases and Pests (Ministry of Education), College of Plant Protection, Nanjing Agricultural University, Nanjing, 210095, China
| | - Xiangrui Tian
- Key Laboratory of Integrated Management of Crop Diseases and Pests (Ministry of Education), College of Plant Protection, Nanjing Agricultural University, Nanjing, 210095, China
| | - Congfen Gao
- Key Laboratory of Integrated Management of Crop Diseases and Pests (Ministry of Education), College of Plant Protection, Nanjing Agricultural University, Nanjing, 210095, China
| | - Bingjun He
- College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Ke Dong
- Department of Entomology and Neuroscience Program, Michigan State University, East Lansing, MI, 48824, USA.
| | - Jianya Su
- Key Laboratory of Integrated Management of Crop Diseases and Pests (Ministry of Education), College of Plant Protection, Nanjing Agricultural University, Nanjing, 210095, China.
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Mclean K, Holmes E, Penewit K, Waalkes A, Ren M, Harwood R, Lee S, Gasper J, Manoil C, Salipante S. P036 Whole genome variant analysis and transposon sequencing provides insight into aztreonam resistance in cystic fibrosis Pseudomonas aeruginosa airway infection. J Cyst Fibros 2018. [DOI: 10.1016/s1569-1993(18)30333-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Abstract
Objective: To investigate the difference between routine hematoxylin-eosin (HE) staining and immunohistochemistry in diagnosing metastatic melanoma in sentinel lymph node (SLN) metastases, and to evaluate the association of SLN tumor burden with the status of non-sentinel lymph nodes (NSLN). Methods: 126 melanoma patients were treated with SLN biopsy and further examined with immunohistochemistry at Fudan University Shanghai Cancer Center between 2010 and 2016, and the status of SLN was respectively estimated by HE stain and immunohistochemistry (S-100 protein, HMB45, Melan A and SOX10). In 39 patients who were treated with complete lymph node dissection, characteristics of SLN tumor burden (maximum diameter of the tumor deposit, tumor penetrative depth and the microanatomic location of the metastasis) and the associations of SLN tumor burden with the involvement of NSLN were all evaluated. Results: Of the total 126 cases, 33 (26.2%) were positive by HE staining and 49 (38.3%) were positive by immunohistochemistry. S-100 protein was positive in 48 out of 49 cases (98.0%). HMB45 was positive in 46 out of 49 cases (93.9%). Melan A was positive in 47 out of 49 cases (96.0%). SOX10 was positive in 8 out of 8 cases. The outcome indicated that the application of immunohistochemistry identified positive SLN missed by HE stain in about 12.1% of cases. Of the 39 patients who were treated with complete lymph node dissection, six showed metastases in NSLN. The frequency of metastases in NSLN was 15.4% (6/39) when SLN was positive. Additionally, the frequency of metastases in NSLN in cases with SLN metastatic deposits ≤2 mm was significantly lower than that in cases with SLN metastatic deposits >2 mm; eight cases with SLN metastatic deposits <0.2 mm had no additional positive NSLN. Conclusions: The findings suggest that immunohistochemistry could effectively improve the detection of positive SLN in melanoma. Cases with SLN metastatic deposits ≤2 mm are less likely to have further metastases in NSLN. There is a need for prospective large-population based studies to identify a subgroup of SLN positive patients who can safely be spared complete lymph node dissection.
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Affiliation(s)
- M Ren
- Department of Pathology, Shanghai Cancer Center, Fudan University and Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
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Duan ZJ, Yao K, Qu YM, Ren M, Zhang YL, Qi XL. [Rare primary proximal epithelioid sarcoma in skull base: clinical analysis of four cases]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2018; 53:263-269. [PMID: 29747250 DOI: 10.3760/cma.j.issn.1673-0860.2018.04.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To report the clinical and pathological features of primary proximal epithelioid sarcoma (PES) in skull base. Methods: The clinical and pathological features of four cases of PES in skull base from Sanbo Brain Institute of Capital Medical University and Kunming Sanbo Brain Institute were analysed retrospectively. Results: Three cases was female, and one male, the age ranged from 46 to 52 years.All cases occurred in skull base, and sellar region was the main site of involvement.Under the microscope, the tumor cells characterized by epithelioid cell changes, with or without rhabdoid tumor cells.Mitotic figure was active.Immunohistochemical staining showed that AE1/AE3, EMA and CD34 were variously expression in tumor cells.INI-1 protein was lost in all cases.Three cases were detected by FISH, and INI1 (22q11.2) gene locus was absent in them.Three patients died less than 3 months after surgery, and case 4 was under treatment after five months of surgery. Conclusions: Primary PES in skull base mostly occurs in sellar region and its clinical prognosis is poor.It features with epithelioid/rhabdoid tumor cells with lack granuloma structure as distal ES.It has epithelial and mesenchymal differentiation characteristics.CD34 is always positive.INI1 gene deletion and protein loss expression are characteristic molecular alteration of PES.
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Affiliation(s)
- Z J Duan
- Department of Pathology, Sanbo Brain Institute, Capital Medical University, Beijing 100093, China
| | - K Yao
- Department of Pathology, Sanbo Brain Institute, Capital Medical University, Beijing 100093, China
| | - Y M Qu
- Department of Neurosurgery, Sanbo Brain Institute, Capital Medical University, Beijing 100093, China
| | - M Ren
- Department of Neurosurgery, Sanbo Brain Institute, Capital Medical University, Beijing 100093, China
| | - Y L Zhang
- Department of Neurosurgery, Sanbo Brain Institute, Kunming 650100, China
| | - X L Qi
- Department of Pathology, Sanbo Brain Institute, Capital Medical University, Beijing 100093, China
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Yu W, Hu B, Shi X, Cao Z, Ren M, He Z, Lin J, Deng H, Hu R. Nicotine inhibits osteogenic differentiation of human periodontal ligament cells under cyclic tensile stress through canonical Wnt pathway and α7 nicotinic acetylcholine receptor. J Periodontal Res 2018; 53:555-564. [PMID: 29603740 DOI: 10.1111/jre.12545] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [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: 02/13/2018] [Indexed: 12/29/2022]
Abstract
BACKGROUND AND OBJECTIVES Nicotine, the main psychoactive component of tobacco, affects cell metabolism, proliferation, adhesion and, importantly, the osteogenic differentiation of fibroblasts. Approximately 15% of all orthodontic patients are adults among who one-fifth are smokers. Hence, it is necessary to have insight into the effects of nicotine on the osteogenic differentiation of hPDLCs during orthodontic tooth movement. This study aimed to investigate the effects and mechanisms of nicotine on the osteogenic differentiation of human periodontal ligament cells (hPDLCs) under the application of cyclic tensile stress. MATERIAL AND METHODS hPDLCs were obtained from donor third molars. The hPDLCs were treated with nicotine and/or cyclic tensile stress that was applied with a cell stress plus unit. The effect of nicotine on cell viability was analyzed using the MTT assay. The osteogenic differentiation of hPDLCs was detected by alkaline phosphatase staining, Alizarin Red S staining, quantitative real-time polymerase chain reaction and western blotting. RESULTS In combination with cyclic tensile stress, nicotine prevented the tensile stress-induced increase in alkaline phosphatase activity, formation of mineralization nodules and the upregulation of mRNA and protein expression of Runt-related transcription factor 2, transcription factor Sp7 and collagen type I; however, canonical Wnt pathway was activated. Furthermore, the addition of Dickkopf-related protein 1 and α-bungarotoxin counteracted the negative effect of nicotine and rescued the osteogenic differentiation of hPDLCs, respectively. CONCLUSION These results indicate that nicotine prevents the increased osteogenic potential of hPDLCs induced by cyclic tensile stress by binding to an α7 nicotinic acetylcholine receptor and activating the canonical Wnt pathway.
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Affiliation(s)
- W Yu
- Department of Orthodontics, School of Stomatology, Wenzhou Medical University, Wenzhou, China
| | - B Hu
- Department of Orthodontics, School of Stomatology, Wenzhou Medical University, Wenzhou, China
| | - X Shi
- Department of Periodontics, School of Stomatology, Wenzhou Medical University, Wenzhou, China
| | - Z Cao
- Department of Orthodontics, School of Stomatology, Wenzhou Medical University, Wenzhou, China
| | - M Ren
- Department of Periodontics, School of Stomatology, Wenzhou Medical University, Wenzhou, China
| | - Z He
- Department of Orthodontics, School of Stomatology, Wenzhou Medical University, Wenzhou, China
| | - J Lin
- Department of Periodontics, School of Stomatology, Wenzhou Medical University, Wenzhou, China
| | - H Deng
- Department of Periodontics, School of Stomatology, Wenzhou Medical University, Wenzhou, China
| | - R Hu
- Department of Orthodontics, School of Stomatology, Wenzhou Medical University, Wenzhou, China
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Ren M, Cong XF, Zhao SS, Zhang Y, Yang L. [DICER1 mutaiton identified in sisters with Ovarian Sertoli-Leydig cell tumor]. Zhonghua Zhong Liu Za Zhi 2018; 40:159-160. [PMID: 29502380 DOI: 10.3760/cma.j.issn.0253-3766.2018.02.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- M Ren
- Department of Oncology, the First Hospital of Jilin University, Changchun 130021, China
| | - X F Cong
- Department of Oncology, the First Hospital of Jilin University, Changchun 130021, China
| | - S S Zhao
- Department of Oncology, the First Hospital of Jilin University, Changchun 130021, China
| | - Y Zhang
- Department of Oncology, the First Hospital of Jilin University, Changchun 130021, China
| | - L Yang
- Department of Oncology, the First Hospital of Jilin University, Changchun 130021, China
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Hong D, Varga A, Parikh A, Shapiro G, Reyderman L, Ren M, Dayal S, Binder T, Ooi C, Ataman Ö, Marabelle A. Phase 1 study of E7046, a PGE2 receptor EP-4 inhibitor that targets immunosuppressive myeloid cells in the tumor microenvironment (TME). Ann Oncol 2017. [DOI: 10.1093/annonc/mdx712.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Zheng J, Wang H, Ren M. Influence of exercise intervention on gestational diabetes mellitus: a systematic review and meta-analysis. J Endocrinol Invest 2017; 40:1027-1033. [PMID: 28401529 DOI: 10.1007/s40618-017-0673-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2017] [Accepted: 04/03/2017] [Indexed: 01/12/2023]
Abstract
AIMS Exercise intervention might be a promising approach to prevent gestational diabetes mellitus. However, the results remained controversial. We conducted a systematic review and meta-analysis to explore the effect of exercise intervention on gestational diabetes mellitus. METHODS PubMed, EMbase, Web of science, EBSCO, and Cochrane library databases were systematically searched. Randomized controlled trials (RCTs) assessing the effect of exercise intervention on gestational diabetes mellitus were included. Two investigators independently searched articles, extracted data, and assessed the quality of included studies. The primary outcome was the incidence of gestational diabetes mellitus, preterm birth, and gestational age at birth. Meta-analysis was performed using random-effect model. RESULTS Five RCTs involving 1872 patients were included in the meta-analysis. Overall, compared with control intervention, exercise intervention was found to significantly reduce the risk of gestational diabetes mellitus (std. mean difference 0.62; 95% CI 0.43-0.89; P = 0.01), but demonstrated no influence on preterm birth (OR 0.93; 95% CI 0.44-1.99; P = 0.86), gestational age at birth (std. mean difference -0.03; 95% CI -0.12 to 0.07; P = 0.60), glucose 2-h post-OGTT (std. mean difference -1.02; 95% CI -2.75 to 0.71; P = 0.25), birth weight (std. mean difference -0.10; 95% CI -0.25 to 0.04; P = 0.16), Apgar score less than 7 (OR 0.78; 95% CI 0.21-2.91; P = 0.71), and preeclampsia (OR 1.05; 95% CI 0.53-2.07; P = 0.88). CONCLUSIONS Compared to control intervention, exercise intervention was found to significantly reduce the incidence of gestational diabetes mellitus, but had no significant influence on preterm birth, gestational age at birth, glucose 2-h post-OGTT, birth weight, Apgar score less than 7, and preeclampsia.
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Affiliation(s)
- J Zheng
- Department of Endocrinology, Chongqing People's Hospital, Chongqing, China
| | - H Wang
- Department of Endocrinology, Chongqing People's Hospital, Chongqing, China
| | - M Ren
- Digestive Department, Chongqing People's Hospital, Chongqing, China.
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Finn R, Kudo M, Cheng AL, Wyrwicz L, Ngan R, Blanc JF, Baron A, Vogel A, Ikeda M, Piscaglia F, Han KH, Qin S, Minoshima Y, Funahashi Y, Ren M, Dairiki R, Sachdev P, Tamai T, Dutcus C, Evans T. Analysis of serum biomarkers (BM) in patients (pts) from a phase 3 study of lenvatinib (LEN) vs sorafenib (SOR) as first-line treatment for unresectable hepatocellular carcinoma (uHCC). Ann Oncol 2017. [DOI: 10.1093/annonc/mdx440.022] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
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Hong D, Varga A, Parikh A, Shapiro G, Reyderman L, Ren M, Dayal S, Binder T, Ooi C, Ataman O, Marabelle A. Phase 1 Study of E7046, a PGE2 Receptor EP-4 inhibitor that targets immunosuppressive myeloid cells in the tumor microenvironment. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx367.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Lyu JJ, Kong YY, Cai X, Shen XX, Lu YW, Ren M. [Utility and evaluation of immunohistochemical detection of BRAF V600E mutation in melanoma]. Zhonghua Bing Li Xue Za Zhi 2017; 46:548-552. [PMID: 28810295 DOI: 10.3760/cma.j.issn.0529-5807.2017.08.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To evaluate the sensitivity, specificity and clinical value of anti-BRAF V600E antibody (clone VE1) in detection of the BRAF V600E mutant in formalin-fixed and paraffin-embedded (FFPE) melanoma specimens by immunohistochemical (IHC) methods. Methods: A total of 50 melanoma samples collected between 2008 and 2016 from 40 patients were analyzed for BRAF mutation (exon 15) by DNA sequencing using FFPE. These tissues were immunostained with VE1 antibody, and the results were analyzed and compared with those by DNA sequencing. Results: By DNA sequencing, 36 cases showed BRAF mutation while others were BRAF wild type. Among the 36 cases with BRAF mutation, 32 harbored BRAF V600E, two harbored BRAF V600K, one had BRAF K601E and one had BRAF D594N, respectively. IHC staining showed 30 specimens were VE1 positive, while 19 were negative. The determination of IHC result for one case was obscured by heavy pigments. Of the BRAF-mutated specimens, four specimens with BRAF mutation other than V600E were all negative for VE1. The sensitivity and specificity of the VE1 immunostaining was 96.8% and 100.0% respectively.Concordance of BRAF V600E detection between immunostaining and DNA sequencing was 98.0%(48/49). Conclusions: High sensitivity and specificity for VE1 immunostaining in detecting BRAF V600E in melanomas are demonstrated. It is a rapid and cost-effective method for detecting BRAF V600E mutations in melanoma patients. Hence, VE1 immunostaining can be used as an important screening method for BRAF mutation in laboratories.
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Affiliation(s)
- J J Lyu
- Department of Pathology, Shanghai Cancer Center, Fudan University and Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
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Zhao LL, Song YQ, Zhang Y, Shi Y, Ren M, Liu S, Mao YM. [Effects of overexpression of human tissue inhibitor of metalloproteinase-1 on the inflammatory response in rats with myocardial infarction and related mechanisms]. Zhonghua Xin Xue Guan Bing Za Zhi 2017. [PMID: 28648029 DOI: 10.3760/cma.j.issn.0253-3758.2017.06.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To observe the effects of recombinant adenovirus with human tissue inhibitor of metalloproteinase-1(Ad-hTIMP-1) on the inflammatory response in rats with myocardial infarction (MI) and explore the related mechanisms. Methods: The male Wistar rats were randomly divided into sham-operated group, saline group, Ad-Track group and Ad-hTIMP-1 group according to the random number table (n=8 each group). MI was induced by ligation of the left anterior descending coronary artery and MI rats were injected with saline, Ad-Track and Ad-hTIMP-1, respectively. Sham-operated rats received similar surgical procedure without ligation of the left anterior descending coronary artery. After 4 weeks, the cardiac function was measured by echocardiography, then rats were sacrificed and hearts were removed for morphological and biological analysis. The morphology of myocardial tissue in each group was detected by HE staining and Masson staining. The mRNA expressions of tumor necrosis factor (TNF)-α, interleukin (IL)-6, IL-10 and C-reactive protein(CRP) were detected by real-time PCR. Immune histochemical staining was performed to observe the protein expression levels of IL-6 and CRP. Results: (1) Left ventricular end systolic dimension derived from echocardiography was increased in saline group ((5.10±0.72) mm) and Ad-Track group ((4.88±0.64) mm) compared to sham-operated group ((4.25±0.46) mm), which was reduced in Ad-hTIMP-1 group ((4.13±0.35) mm, all P<0.05). The left ventricular ejection fraction was (72.46±5.74)%, (64.27±8.52)%, (64.65±3.90)%, and (71.55±6.95)%, the fractional shortening was (36.90±4.97)%, (29.03±3.40)%, (30.95±2.51)%, and (36.31±5.68)% in sham-operated group, saline group, Ad-Track group and Ad-hTIMP-1 group, respectively. The left ventricular ejection fraction and fractional shortening in saline group and Ad-Track group were lower than those in sham-operated group and Ad-hTIMP-1 group (all P<0.05). (2) Necrosis of myocardial cells was not found and a small amount of immune cell infiltration and interstitial fibrosis were observed on HE and Masson stained myocardial sections of Ad-hTIMP-1 group. (3) Real-time PCR showed that mRNA expressions of TNF-α, IL-6, IL-10 and CRP were lower in Ad-hTIMP-1 group than in saline group. mRNA expressions of TNF-α, IL-10 and CRP were lower in Ad-hTIMP-1 group than in Ad-Track group (all P<0.05). (4) Immune histochemical staining showed that protein expressions of IL-6 and CRP were higher in saline group and Ad-Track group than those in Ad-hTIMP-1 group (all P<0.05). Conclusion: Recombinant adenovirus Ad-hTIMP-1 can improve cardiac function in rats with myocardial infarction via inhibiting the inflammatory response and downregulating the expression of TNF-α, IL-6 and CRP.
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Affiliation(s)
- L L Zhao
- Tianjin Institute of Cardiovascular Disease, Tianjin Chest Hospital, Tianjin 300222, China
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Wu J, Shao X, Lu K, Zhou J, Ren M, Xie X, Liu J, Xu Y, Ding Y, Shen X, Zhu C. Urinary RBP and NGAL Levels are Associated with Nephropathy in Patients with Type 2 Diabetes. Cell Physiol Biochem 2017; 42:594-602. [PMID: 28954270 DOI: 10.1159/000477860] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Accepted: 03/23/2017] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND/AIMS The diagnosis of type 2 diabetic nephropathy (T2DN) patients is important to prevent the long-term damaging effects of kidney loss in patients with diabetes and is decisive for patient outcomes. The aim of this study was to explore urine retinol binding protein (RBP) and neutrophil gelatinase-associated lipocalin (NGAL) in T2DN patients with and without albuminuria. METHODS A total of 293 T2DN patients were divided into three groups according to their urine albumin/urine creatinine ratio (UACR): normoalbuminuria group (UACR<30 mg/g, n=100), microalbuminuria group (UACR 30-300 mg/g, n=100) and macroalbuminuria group (UACR>300 mg/g, n=93); 50 non-diabetic subjects were recruited as the control group. The levels of urine RBP, NGAL, TNF-α and IL-18 in T2DN patients and non-diabetic subjects were measured using ELISA assays. RESULTS We first analyzed the clinical characteristics of the control and T2DN groups and found that urine NGAL, RBP, TNF-α and IL-18 levels were significantly increased and significantly correlated with the degree of albuminuria. In addition, univariate linear regression analysis showed that urine RBP was associated with UACR, BMI, Scr, BUN, TG, disease duration, SBP, NGAL, TNF-α and IL-18 levels, and urine NGAL was positively correlated with UACR, Scr, BUN, RBP, TNF-α and IL-18 levels. CONCLUSION The results indicate that urine levels of NGAL and RBP may be independently associated with albuminuria in T2DN and may serve as novel biomarkers for the identification of T2DN.
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Kumar S, Ren M, Morris T, Kaval A, Madi S, Matin A, Turpin S. 45IMPROVING MULTIDISCIPLINARY TEAM MEETINGS IN GERIATRIC EMERGENCY MEDICINE USING QI METHOD. Age Ageing 2017. [DOI: 10.1093/ageing/afx055.45] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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45
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Wang PP, Ren M, Chen SQ, Yin SW, Zhao C, Zhang HY, Li XR, Cao QQ, Zhou GQ. Characterization and development of 56 EST-SSR markers derived from the transcriptome of Odontobutis potamophila. Genet Mol Res 2017; 16:gmr-16-02-gmr.16029129. [PMID: 28510247 DOI: 10.4238/gmr16029129] [Citation(s) in RCA: 4] [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] [Indexed: 11/03/2022]
Abstract
Expressed sequence tags (ETSs) are the sources of microsatellite development. In this study, we isolated and characterized microsatellite markers for Odontobutis potamophila by using Illumina RNA-sequencing. We sequenced a large number of ESTs and screened 200 potential microsatellites. Consequently, a total of 56 novel polymorphic microsatellite repeat markers were identified in thirty-two individuals from a wild population area (Jiande, Zhejiang Province, China). The number of alleles per locus varied from two to eight, the observed heterozygosity (HO) ranged from 0.03571 to 0.9375, and the expected heterozygosity (HE) ranged from 0.14326 to 0.81549. The average number of alleles, HO, and HE were 5.0, 0.4467, and 0.5518, respectively. By the calculation, the range of polymorphism information content (PIC) was 0.1177-0.8492. Most of the loci showed moderate or high polymorphism. These newly developed EST-simple sequence repeat (EST-SSR) markers would serve as an efficient tool for analyzing population connectivity and provide sufficient information for genetic diversity research, parentage, and molecular breeding of O. potamophila and other fishes with similar genetic relationship.
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Affiliation(s)
- P P Wang
- College of Life Sciences, Key Laboratory of Biodiversity and Biotechnology of Jiangsu Province, , , China.,, , China
| | - M Ren
- College of Life Sciences, Key Laboratory of Biodiversity and Biotechnology of Jiangsu Province, , , China
| | | | - S W Yin
- College of Life Sciences, Key Laboratory of Biodiversity and Biotechnology of Jiangsu Province, , , China .,Co-Innovation Center for Marine Bio-Industry Technology of Jiangsu Province, Lianyungang, Jiangsu, China
| | - C Zhao
- College of Life Sciences, Key Laboratory of Biodiversity and Biotechnology of Jiangsu Province, , , China
| | - H Y Zhang
- College of Life Sciences, Key Laboratory of Biodiversity and Biotechnology of Jiangsu Province, , , China
| | - X R Li
- College of Life Sciences, Key Laboratory of Biodiversity and Biotechnology of Jiangsu Province, , , China
| | - Q Q Cao
- College of Life Sciences, Key Laboratory of Biodiversity and Biotechnology of Jiangsu Province, , , China
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Park J, Salmi ML, Wan Salim WWA, Rademacher A, Wickizer B, Schooley A, Benton J, Cantero A, Argote PF, Ren M, Zhang M, Porterfield DM, Ricco AJ, Roux SJ, Rickus JL. An autonomous lab on a chip for space flight calibration of gravity-induced transcellular calcium polarization in single-cell fern spores. Lab Chip 2017; 17:1095-1103. [PMID: 28205656 DOI: 10.1039/c6lc01370h] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
This report describes the development of lab-on-a-chip device designed to measure changes in cellular ion gradients that are induced by changes in gravitational (g) forces. The bioCD presented here detects differential calcium ion concentrations outside of individual cells. The device includes sufficient replicates for statistical analysis of the gradients around multiple single cells and around control wells that are empty or include dead cells. In the data presented, the degree of the cellular response correlates with the magnitude of the g-force applied via rotation of the bioCD. The experiments recorded the longest continuous observation of a cellular response to hypergravity made to date, and they demonstrate the potential utility of this device for assaying the threshold of cells' g-force responses in spaceflight conditions.
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Affiliation(s)
- J Park
- Agricultural & Biological Engineering, Physiological Sensing Facility at the Bindley Bioscience Center & Birck Nanotechnology Center, Purdue University, West Lafayette, IN 47907, USA.
| | - M L Salmi
- Molecular Biosciences, The University of Texas at Austin, 1 University Station A6700, Austin, TX 78712, USA
| | - W W A Wan Salim
- Agricultural & Biological Engineering, Physiological Sensing Facility at the Bindley Bioscience Center & Birck Nanotechnology Center, Purdue University, West Lafayette, IN 47907, USA.
| | - A Rademacher
- NASA Ames Research Center, Moffett Field, CA 94035, USA
| | - B Wickizer
- NASA Ames Research Center, Moffett Field, CA 94035, USA
| | - A Schooley
- NASA Ames Research Center, Moffett Field, CA 94035, USA
| | - J Benton
- NASA Ames Research Center, Moffett Field, CA 94035, USA
| | - A Cantero
- Molecular Biosciences, The University of Texas at Austin, 1 University Station A6700, Austin, TX 78712, USA
| | - P F Argote
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN 47907, USA
| | - M Ren
- Dept of Statistics, Purdue University, West Lafayette, IN 47907, USA
| | - M Zhang
- Dept of Statistics, Purdue University, West Lafayette, IN 47907, USA
| | - D M Porterfield
- Agricultural & Biological Engineering, Physiological Sensing Facility at the Bindley Bioscience Center & Birck Nanotechnology Center, Purdue University, West Lafayette, IN 47907, USA. and Horticulture and Landscape Architecture, Purdue University, West Lafayette, IN 47907, USA
| | - A J Ricco
- NASA Ames Research Center, Moffett Field, CA 94035, USA
| | - S J Roux
- Molecular Biosciences, The University of Texas at Austin, 1 University Station A6700, Austin, TX 78712, USA
| | - J L Rickus
- Agricultural & Biological Engineering, Physiological Sensing Facility at the Bindley Bioscience Center & Birck Nanotechnology Center, Purdue University, West Lafayette, IN 47907, USA. and Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN 47907, USA
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Adcock CT, Tschauner O, Hausrath EM, Udry A, Luo SN, Cai Y, Ren M, Lanzirotti A, Newville M, Kunz M, Lin C. Shock-transformation of whitlockite to merrillite and the implications for meteoritic phosphate. Nat Commun 2017; 8:14667. [PMID: 28262701 PMCID: PMC5343502 DOI: 10.1038/ncomms14667] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Accepted: 01/23/2017] [Indexed: 11/17/2022] Open
Abstract
Meteorites represent the only samples available for study on Earth of a number of planetary bodies. The minerals within meteorites therefore hold the key to addressing numerous questions about our solar system. Of particular interest is the Ca-phosphate mineral merrillite, the anhydrous end-member of the merrillite–whitlockite solid solution series. For example, the anhydrous nature of merrillite in Martian meteorites has been interpreted as evidence of water-limited late-stage Martian melts. However, recent research on apatite in the same meteorites suggests higher water content in melts. One complication of using meteorites rather than direct samples is the shock compression all meteorites have experienced, which can alter meteorite mineralogy. Here we show whitlockite transformation into merrillite by shock-compression levels relevant to meteorites, including Martian meteorites. The results open the possibility that at least part of meteoritic merrillite may have originally been H+-bearing whitlockite with implications for interpreting meteorites and the need for future sample return. Quantifying the amount of water in meteorites remains challenging, with minerals the key to understanding water contents. Here, Adcock et al. perform shock experiments on H+-bearing whitlockite demonstrating that it may transform into anhydrous merrillite, which is commonly found in Martian meteorites.
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Affiliation(s)
- C T Adcock
- Department of Geoscience, University of Nevada, Las Vegas, 4505 South Maryland Parkway, Las Vegas, Nevada 89154, USA
| | - O Tschauner
- Department of Geoscience, University of Nevada, Las Vegas, 4505 South Maryland Parkway, Las Vegas, Nevada 89154, USA.,High Pressure Science and Engineering Center, University of Nevada, Las Vegas, 4505 South Maryland Parkway, Las Vegas, Nevada 89154, USA.,LSPM-CNRS, Institut Galilée, Université Paris 13, Nord, 99, av. J. B. Clément, 93430 Villetaneuse, France.,Key Laboratory of Advanced Technologies of Materials, Ministry of Education, Southwest Jiaotong University, Chengdu, Sichuan 610031, China
| | - E M Hausrath
- Department of Geoscience, University of Nevada, Las Vegas, 4505 South Maryland Parkway, Las Vegas, Nevada 89154, USA
| | - A Udry
- Department of Geoscience, University of Nevada, Las Vegas, 4505 South Maryland Parkway, Las Vegas, Nevada 89154, USA
| | - S N Luo
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, Southwest Jiaotong University, Chengdu, Sichuan 610031, China.,The Peac Institute of Multiscale Sciences, Chengdu, Sichuan 610031, China
| | - Y Cai
- The Peac Institute of Multiscale Sciences, Chengdu, Sichuan 610031, China.,CAS Key Laboratory of Materials Behavior and Design, Department of Modern Mechanics, University of Science and Technology of China, Hefei, Anhui 230027, China
| | - M Ren
- Department of Geoscience, University of Nevada, Las Vegas, 4505 South Maryland Parkway, Las Vegas, Nevada 89154, USA
| | - A Lanzirotti
- GeoScienceEnviro Center for Advanced Radiation Sources, University of Chicago, Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - M Newville
- GeoScienceEnviro Center for Advanced Radiation Sources, University of Chicago, Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - M Kunz
- Lawrence Berkeley National Laboratory, Advanced Light Source, University of California, Berkeley, Berkeley, California 94720, USA
| | - C Lin
- High Pressure Collaborative Access Team (HPCAT), Geophysical Laboratory, Carnegie Institution of Washington, Argonne, Illinois 60439, USA
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Xiang YJ, Ren M, Jiang H, Yang TT, He Y, Ao DH, Wang YY, Zhang Q, He XJ, Gao XG, Liu GZ. Ex vivo expansion of antigen-specific CD4+CD25+ regulatory T cells from autologous naïve CD4+ T cells of multiple sclerosis patients as a potential therapeutic approach. Eur Rev Med Pharmacol Sci 2016; 20:5261-5270. [PMID: 28051239] [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
OBJECTIVE CD4+CD25+ regulatory T cells (Tregs) have been found to have a decreased effector function in patients with multiple sclerosis (MS). In this study, we co-cultured naïve CD4+ T cells of MS patients with myelin basic protein (MBP)85-99 peptide as specific antigen and allogenic B cells as antigen-presenting cells, in an attempt to generate adequate antigen-specific CD4+CD25+ Tregs with normal or improved immune function. PATIENTS AND METHODS Naïve CD4+ T cells were isolated from peripheral blood mononuclear cells (PBMCs) from patients with MS (n=5) and healthy controls (HC, n=5). Furthermore, these purified naive CD4+ T cells were co-cultured with the CD40-activated B cells and MBP85-99 peptide to induce MBP-reactive CD4+CD25highCD127low Tregs. After harvesting these Tregs via a flow sorter, real-time PCR and mixed lymphocyte reaction (MLR) assay were performed to characterize cellular immune function. Supernatant interleukin (IL)-10 and transforming growth factor (TGF)-β1 protein levels were detected by an enzyme-linked immunosorbent assay (ELISA). RESULTS With this method, the frequency of CD4+CD25highCD127low Tregs in CD4+ T cells was 3.5%-6%. In both MS and HC groups, there were relatively lower proliferation indices (PI) of MLR assay but higher supernatant IL-10 and TGF-β1 levels in the presence of MBP than those in the presence of other control antigens, where no significant differences were found. CONCLUSIONS Via the ex vivo culture, adequate MBP-reactive CD4+CD25+ Tregsderived from autologous naïve CD4+ T cells of MS patients, were obtained and returned to normal without immune defects, and even upregulated their immunosuppressive function mostly through the elevated release of IL-10 and TGF-β1.
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Affiliation(s)
- Y-J Xiang
- Department of Neurology, Peking University People's Hospital, Beijing, China.
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Velcheti V, Hida T, Reckamp K, Yang J, Nokihara H, Sachdev P, Feit K, Kubota T, Nakada T, Dutcus C, Ren M, Tamura T. Phase 2 study of lenvatinib (LN) in patients (Pts) with RET fusion-positive adenocarcinoma of the lung. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw383.05] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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