1
|
Huang J, Yin Q, Wang Y, Zhou X, Guo Y, Tang Y, Cheng R, Yu X, Zhang J, Huang C, Huang Z, Zhang J, Guo Z, Huo X, Sun Y, Li Y, Wang H, Yang J, Xue L. EZH2 Inhibition Enhances PD-L1 Protein Stability Through USP22-Mediated Deubiquitination in Colorectal Cancer. Adv Sci (Weinh) 2024:e2308045. [PMID: 38520088 DOI: 10.1002/advs.202308045] [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: 10/24/2023] [Revised: 02/26/2024] [Indexed: 03/25/2024]
Abstract
The regulation of PD-L1 is the key question, which largely determines the outcome of the immune checkpoint inhibitors (ICIs) based therapy. However, besides the transcription level, the protein stability of PD-L1 is closely correlated with its function and has drawn increasing attention. In this study, EZH2 inhibition enhances PD-L1 expression and protein stability, and the deubiquitinase ubiquitin-specific peptidase 22 (USP22) is identified as a key mediator in this process. EZH2 inhibition transcriptionally upregulates USP22 expression, and upregulated USP22 further stabilizes PD-L1. Importantly, a combination of EZH2 inhibitors with anti-PD-1 immune checkpoint blockade therapy improves the tumor microenvironment, enhances sensitivity to immunotherapy, and exerts synergistic anticancer effects. In addition, knocking down USP22 can potentially enhance the therapeutic efficacy of EZH2 inhibitors on colon cancer. These findings unveil the novel role of EZH2 inhibitors in tumor immune evasion by upregulating PD-L1, and this drawback can be compensated by combining ICI immunotherapy. Therefore, these findings provide valuable insights into the EZH2-USP22-PD-L1 regulatory axis, shedding light on the optimization of combining both immune checkpoint blockade and EZH2 inhibitor-based epigenetic therapies to achieve more efficacies and accuracy in cancer treatment.
Collapse
Affiliation(s)
- Jiaqi Huang
- Peking University Third Hospital Cancer Center, Department of Radiation Oncology, Peking University Third Hospital, Beijing, 100191, China
- Center of Basic Medical Research, Institute of Medical Innovation and Research, Peking University Third Hospital, Beijing, 100191, China
| | - Qianqian Yin
- Center of Basic Medical Research, Institute of Medical Innovation and Research, Peking University Third Hospital, Beijing, 100191, China
- Biobank, Peking University Third Hospital, Beijing, 100191, China
- Cancer Center of Peking University Third Hospital, Beijing, 100191, China
| | - Yuqing Wang
- Center of Basic Medical Research, Institute of Medical Innovation and Research, Peking University Third Hospital, Beijing, 100191, China
- Cancer Center of Peking University Third Hospital, Beijing, 100191, China
| | - Xin Zhou
- Cancer Center of Peking University Third Hospital, Beijing, 100191, China
- Department of General Surgery, Peking University Third Hospital, Beijing, 100191, China
| | - Yunyun Guo
- Peking University Third Hospital Cancer Center, Department of Radiation Oncology, Peking University Third Hospital, Beijing, 100191, China
- Center of Basic Medical Research, Institute of Medical Innovation and Research, Peking University Third Hospital, Beijing, 100191, China
| | - Yuanjun Tang
- Center of Basic Medical Research, Institute of Medical Innovation and Research, Peking University Third Hospital, Beijing, 100191, China
- Cancer Center of Peking University Third Hospital, Beijing, 100191, China
| | - Rui Cheng
- Peking University Third Hospital Cancer Center, Department of Radiation Oncology, Peking University Third Hospital, Beijing, 100191, China
- Center of Basic Medical Research, Institute of Medical Innovation and Research, Peking University Third Hospital, Beijing, 100191, China
| | - Xiaotong Yu
- Center of Basic Medical Research, Institute of Medical Innovation and Research, Peking University Third Hospital, Beijing, 100191, China
- Cancer Center of Peking University Third Hospital, Beijing, 100191, China
| | - Jie Zhang
- Center of Basic Medical Research, Institute of Medical Innovation and Research, Peking University Third Hospital, Beijing, 100191, China
- Cancer Center of Peking University Third Hospital, Beijing, 100191, China
| | - Chen Huang
- Center of Basic Medical Research, Institute of Medical Innovation and Research, Peking University Third Hospital, Beijing, 100191, China
- Cancer Center of Peking University Third Hospital, Beijing, 100191, China
| | - Zhanya Huang
- Peking University Third Hospital Cancer Center, Department of Radiation Oncology, Peking University Third Hospital, Beijing, 100191, China
- Center of Basic Medical Research, Institute of Medical Innovation and Research, Peking University Third Hospital, Beijing, 100191, China
| | - Jianlin Zhang
- Center of Basic Medical Research, Institute of Medical Innovation and Research, Peking University Third Hospital, Beijing, 100191, China
- Cancer Center of Peking University Third Hospital, Beijing, 100191, China
| | - Zhengyang Guo
- Center of Basic Medical Research, Institute of Medical Innovation and Research, Peking University Third Hospital, Beijing, 100191, China
- Cancer Center of Peking University Third Hospital, Beijing, 100191, China
| | - Xiao Huo
- Center of Basic Medical Research, Institute of Medical Innovation and Research, Peking University Third Hospital, Beijing, 100191, China
- Biobank, Peking University Third Hospital, Beijing, 100191, China
- Cancer Center of Peking University Third Hospital, Beijing, 100191, China
| | - Yan Sun
- Center of Basic Medical Research, Institute of Medical Innovation and Research, Peking University Third Hospital, Beijing, 100191, China
- Cancer Center of Peking University Third Hospital, Beijing, 100191, China
| | - Yanfang Li
- Center of Basic Medical Research, Institute of Medical Innovation and Research, Peking University Third Hospital, Beijing, 100191, China
- Cancer Center of Peking University Third Hospital, Beijing, 100191, China
| | - Hao Wang
- Peking University Third Hospital Cancer Center, Department of Radiation Oncology, Peking University Third Hospital, Beijing, 100191, China
- Cancer Center of Peking University Third Hospital, Beijing, 100191, China
| | - Jianling Yang
- Center of Basic Medical Research, Institute of Medical Innovation and Research, Peking University Third Hospital, Beijing, 100191, China
- Cancer Center of Peking University Third Hospital, Beijing, 100191, China
| | - Lixiang Xue
- Peking University Third Hospital Cancer Center, Department of Radiation Oncology, Peking University Third Hospital, Beijing, 100191, China
- Center of Basic Medical Research, Institute of Medical Innovation and Research, Peking University Third Hospital, Beijing, 100191, China
- Biobank, Peking University Third Hospital, Beijing, 100191, China
- Cancer Center of Peking University Third Hospital, Beijing, 100191, China
- Medicine Innovation Center for Fundamental Research on Major Immunology-related Diseases, Beijing, 100191, China
| |
Collapse
|
2
|
Guo Z, Huang J, Huo X, Huang C, Yu X, Sun Y, Li Y, He T, Guo H, Yang J, Xue L. Targeting LTA4H facilitates the reshaping of the immune microenvironment mediated by CCL5 and sensitizes ovarian cancer to Cisplatin. Sci China Life Sci 2024:10.1007/s11427-023-2444-5. [PMID: 38300441 DOI: 10.1007/s11427-023-2444-5] [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] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Accepted: 09/06/2023] [Indexed: 02/02/2024]
Abstract
Ovarian cancer is the most lethal and aggressive gynecological cancer with a high recurrence rate and is often diagnosed late. In ovarian cancer, multiple metabolic enzymes of lipid metabolism are abnormally expressed, resulting in metabolism disorder. As a characteristic pathway in polyunsaturated fatty acid (PUFA) metabolism, arachidonic acid (AA) metabolism is disturbed in ovarian cancer. Therefore, we established a 10-gene signature model to evaluate the prognostic risk of PUFA-related genes. This 10-gene signature has strong robustness and can play a stable predictive role in datasets of various platforms (TCGA, ICGC, and GSE17260). The high association between the risk subgroups and clinical characteristics indicated a good performance of the model. Our data further indicated that the high expression of LTA4H was positively correlated with poor prognosis in ovarian cancer. Deficiency of LTA4H enhanced sensitivity to Cisplatin and modified the characteristics of immune cell infiltration in ovarian cancer. Additionally, our results indicate that CCL5 was involved in the aberrant metabolism of the AA/LTA4H axis, which contributes to the reduction of tumor-infiltrating CD8+ T cells and immune escape in ovarian cancer. These findings provide new insights into the prognosis and potential target of LTA4H/CCL5 in treating ovarian cancer.
Collapse
Affiliation(s)
- Zhengyang Guo
- Cancer Center of Peking University Third Hospital, Beijing, 100191, China
- Center of Basic Medical Research, Institute of Medical Innovation and Research, Peking University Third Hospital, Beijing, 100191, China
| | - Jiaqi Huang
- Cancer Center of Peking University Third Hospital, Beijing, 100191, China
- Peking University Third Hospital Cancer Center, Department of Radiation Oncology, Peking University Third Hospital, Beijing, 100191, China
| | - Xiao Huo
- Cancer Center of Peking University Third Hospital, Beijing, 100191, China
- Center of Basic Medical Research, Institute of Medical Innovation and Research, Peking University Third Hospital, Beijing, 100191, China
| | - Chen Huang
- Cancer Center of Peking University Third Hospital, Beijing, 100191, China
- Center of Basic Medical Research, Institute of Medical Innovation and Research, Peking University Third Hospital, Beijing, 100191, China
| | - Xiaotong Yu
- Cancer Center of Peking University Third Hospital, Beijing, 100191, China
- Center of Basic Medical Research, Institute of Medical Innovation and Research, Peking University Third Hospital, Beijing, 100191, China
| | - Yan Sun
- Cancer Center of Peking University Third Hospital, Beijing, 100191, China
- Center of Basic Medical Research, Institute of Medical Innovation and Research, Peking University Third Hospital, Beijing, 100191, China
| | - Yanfang Li
- Cancer Center of Peking University Third Hospital, Beijing, 100191, China
- Center of Basic Medical Research, Institute of Medical Innovation and Research, Peking University Third Hospital, Beijing, 100191, China
| | - Tianhui He
- Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing, 100191, China
| | - Hongyan Guo
- Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing, 100191, China.
| | - Jianling Yang
- Cancer Center of Peking University Third Hospital, Beijing, 100191, China.
- Center of Basic Medical Research, Institute of Medical Innovation and Research, Peking University Third Hospital, Beijing, 100191, China.
| | - Lixiang Xue
- Cancer Center of Peking University Third Hospital, Beijing, 100191, China.
- Center of Basic Medical Research, Institute of Medical Innovation and Research, Peking University Third Hospital, Beijing, 100191, China.
- Peking University Third Hospital Cancer Center, Department of Radiation Oncology, Peking University Third Hospital, Beijing, 100191, China.
| |
Collapse
|
3
|
Guo Z, Huo X, Li X, Jiang C, Xue L. Advances in regulation and function of stearoyl-CoA desaturase 1 in cancer, from bench to bed. Sci China Life Sci 2023; 66:2773-2785. [PMID: 37450239 DOI: 10.1007/s11427-023-2352-9] [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: 01/15/2023] [Accepted: 04/23/2023] [Indexed: 07/18/2023]
Abstract
Stearoyl-CoA desaturase 1 (SCD1) converts saturated fatty acids to monounsaturated fatty acids. The expression of SCD1 is increased in many cancers, and the altered expression contributes to the proliferation, invasion, sternness and chemoresistance of cancer cells. Recently, more evidence has been reported to further support the important role of SCD1 in cancer, and the regulation mechanism of SCD1 has also been focused. Multiple factors are involved in the regulation of SCD1, including metabolism, diet, tumor microenvironment, transcription factors, non-coding RNAs, and epigenetics modification. Moreover, SCD1 is found to be involved in regulating ferroptosis resistance. Based on these findings, SCD1 has been considered as a potential target for cancer treatment. However, the resistance of SCD1 inhibition may occur in certain tumors due to tumor heterogeneity and metabolic plasticity. This review summarizes recent advances in the regulation and function of SCD1 in tumors and discusses the potential clinical application of targeting SCD1 for cancer treatment.
Collapse
Affiliation(s)
- Zhengyang Guo
- Center of Basic Medical Research, Institute of Medical Innovation and Research, Peking University Third Hospital, Beijing, 100191, China
| | - Xiao Huo
- Center of Basic Medical Research, Institute of Medical Innovation and Research, Peking University Third Hospital, Beijing, 100191, China
| | - Xianlong Li
- Center of Basic Medical Research, Institute of Medical Innovation and Research, Peking University Third Hospital, Beijing, 100191, China
| | - Changtao Jiang
- Center of Basic Medical Research, Institute of Medical Innovation and Research, Peking University Third Hospital, Beijing, 100191, China.
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University and the Key Laboratory of Molecular Cardiovascular Science (Peking University), Ministry of Education, Beijing, 100191, China.
| | - Lixiang Xue
- Center of Basic Medical Research, Institute of Medical Innovation and Research, Peking University Third Hospital, Beijing, 100191, China.
- Peking University Third Hospital Cancer Center, Department of Radiation Oncology, Peking University Third Hospital, Beijing, 100191, China.
| |
Collapse
|
4
|
Watts MJ, Argyraki A, Barbieri M, Brown A, Button M, Finkelman R, Gibson G, Humphrey O, Huo X, Hursthouse AS, Kaninga B, Marinho Reis P, Middleton DRS, Morton-Bermea O, Nazarpour A, Olatunji AS, Osano O, Potgieter-Vermaak S, Prater C, Torrance K, Wong MH, Zhang C, Zia M. Editorial: The society for environmental geochemistry and health (SEGH): 50 years and beyond. Environ Geochem Health 2023; 45:1165-1171. [PMID: 35044549 PMCID: PMC8768439 DOI: 10.1007/s10653-021-01192-7] [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: 12/14/2021] [Accepted: 12/23/2021] [Indexed: 06/14/2023]
Abstract
When the SEGH international board released a short editorial paper back in 2019, we described an aim to increase the membership offering, whilst improving the diversity of input regionally, by scientific discipline and to ensure greater and more regular contact across the regions from 2020 onwards. Wider aspirations described in 2019 (Watts et al. 2019) are discussed within this short communication at the end of 2021 to evaluate progress made. In particular, how the SEGH community adapted to the unprecedented circumstances that have challenged each and every one of us throughout the COVID-19 pandemic since early 2020 and are likely to influence our activities for the foreseeable future.
Collapse
Affiliation(s)
- M. J. Watts
- Inorganic Geochemistry, British Geological Survey, Nottingham, UK
| | - A. Argyraki
- Department of Geology and Geoenvironment, National and Kapodistrian University of Athens, Athens, Greece
| | | | - A. Brown
- SEGH, British Geological Survey, Nottingham, UK
| | - M. Button
- University British Columbia, Kalowna, Canada
| | | | - G. Gibson
- Gibson Consulting and Training, Tarporley, UK
| | - O. Humphrey
- Inorganic Geochemistry, British Geological Survey, Nottingham, UK
| | - X. Huo
- School of Environment, Jinan University, Guangzhou, China
| | | | - B. Kaninga
- Zambia Agriculture Research Institute, Mount Makulu Central Research Station, P/B 7, Chilanga, Zambia
| | - P. Marinho Reis
- Departamento de Ciências da Terra, Escola de Ciências, Universidade do Minho, Campus de Gualtarl, Braga, Portugal
| | - D. R. S. Middleton
- Centre for Public Health, School of Medicine, Dentistry and Biomedical Sciences, Queen’s University Belfast, Belfast, UK
| | - O. Morton-Bermea
- Instituto ed Geofísica, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - A. Nazarpour
- Department of Geology, Islamic Azad University, Ahvaz Branch, Ahvaz, Iran
| | - A. S. Olatunji
- Department of Geology, University of Ibadan, Ibadan, Nigeria
| | - O. Osano
- Department of Environmental Biology and Health, School of Environmental Studies, University of Eldoret, Eldoret, Kenya
| | | | - C. Prater
- Oklahoma State University, Stillwater, USA
| | | | - M. H. Wong
- The Education University of Hong Kong, Hong Kong, China
| | - C. Zhang
- National University of Ireland, Galway, Ireland
| | - M. Zia
- Fauji Fertiliser Company Ltd, Rawalpindi, Pakistan
| |
Collapse
|
5
|
Wu X, Zhang K, Zhong X, Huo X, Zhang J, Tian W, Yang X, Zhang Y, Wang Y. Androgens in endometrial carcinoma: the killer or helper? J Endocrinol Invest 2023; 46:457-464. [PMID: 36583833 PMCID: PMC9938034 DOI: 10.1007/s40618-022-01916-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Accepted: 09/01/2022] [Indexed: 12/31/2022]
Abstract
PURPOSE The aim of this review is to discuss the role of androgens in the progression of endometrial carcinoma (EC) with particular focus on the different kinds of androgenic hormones, androgen receptor (AR) and intracrine androgen metabolism. METHODS A comprehensive literature search within PubMed was performed. Selected publications related to androgens and EC were reviewed. RESULTS There are different kinds of androgenic hormones, and different kinds of androgens may have different effects. Elevated androgens (especially testosterone) have been associated with an increased EC risk in postmenopausal women. 5α-reductases (5α-Reds) and 17β-hydroxysteroid dehydrogenase type 2 (17βHSD2) pathway may inhibit the progression of EC mediated by dihydrotestosterone (DHT), but aromatases stimulate further progression of EC. The most of studies accessing the prognostic value of AR have found that AR expression may be a favorable prognostic indicator. CONCLUSION Androgens may have both oncogenic and tumor suppressive roles. Androgen-specific biases in metabolism and the expression of AR may contribute to the different prognosis of patients with EC.
Collapse
Affiliation(s)
- X Wu
- Department of Gynecology and Obstetrics, Tianjin Medical University General Hospital, Tianjin, China
- Department of Gynecology and Obstetrics, Affiliated Hospital of Nantong University, Nantong City, China
| | - K Zhang
- Department of Gynecology and Obstetrics, Tianjin Medical University General Hospital, Tianjin, China
| | - X Zhong
- Department of Gynecology and Obstetrics, Affiliated Hospital of Nantong University, Nantong City, China
| | - X Huo
- Department of Gynecology and Obstetrics, Affiliated Hospital of Nantong University, Nantong City, China
| | - J Zhang
- Department of Gynecology and Obstetrics, Affiliated Hospital of Nantong University, Nantong City, China
| | - W Tian
- Department of Gynecology and Obstetrics, Tianjin Medical University General Hospital, Tianjin, China
| | - X Yang
- Department of Gynecology and Obstetrics, Affiliated Hospital of Nantong University, Nantong City, China.
| | - Y Zhang
- Department of Gynecology and Obstetrics, Affiliated Hospital of Nantong University, Nantong City, China.
| | - Y Wang
- Department of Gynecology and Obstetrics, Tianjin Medical University General Hospital, Tianjin, China.
| |
Collapse
|
6
|
Jin D, Huo X, Zhang S, Zhang W, Yang F, Yang J. Calibrating an unfocused plenoptic camera based on parameters grouping and the light field structure point. Appl Opt 2023; 62:481-491. [PMID: 36630250 DOI: 10.1364/ao.474593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Accepted: 12/09/2022] [Indexed: 06/17/2023]
Abstract
Accurately calibrating an unfocused plenoptic camera is essential to its applications. Rapid progress has been made in this area in the past decades. In this paper, detailed analysis is first performed toward the state-of-the-art projection model. Based on the analysis, parameters in the projection model are divided into two groups. Then, based on the parameter analysis, a new, to the best of our knowledge, form of the projection model, together with a new image feature light field structure point (LF-structure-point), is proposed. The LF-structure-point provides a completely non-redundant representation of the signal structure of the recorded light field raw data and induces a virtual space, "light field structure space," which is related to the real physical space by a 3D-to-3D projective transformation. The extracting algorithm of the LF-structure-point is also presented. Finally, based on the 3D-to-3D projective transformation and parameter grouping, a simple two-step calibration method using the LF-structure-point as the input data is then proposed and achieves satisfactory experimental results.
Collapse
|
7
|
Zhang X, Huo X, Guo H, Xue L. Combined inhibition of PARP and EZH2 for cancer treatment: Current status, opportunities, and challenges. Front Pharmacol 2022; 13:965244. [PMID: 36263120 PMCID: PMC9574044 DOI: 10.3389/fphar.2022.965244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Accepted: 09/14/2022] [Indexed: 11/13/2022] Open
Abstract
Tumors with BRCA1/2 mutations or homologous recombination repair defects are sensitive to PARP inhibitors through the mechanism of synthetic lethality. Several PARP inhibitors are currently approved for ovarian, breast and pancreatic cancer in clinical practice. However, more than 40% of patients with BRCA1/2 mutations are insensitive to PARP inhibitors, which has aroused attention to the mechanism of PARP resistance and sensitization schemes. PARP inhibitor resistance is related to homologous recombination repair, stability of DNA replication forks, PARylation and epigenetic modification. Studies on epigenetics have become the hotspots of research on PARP inhibitor resistance. As an important epigenetic regulator of transcription mediated by histone methylation, EZH2 interacts with PARP through DNA homologous recombination, DNA replication, posttranslational modification, tumor immunity and other aspects. EZH2 inhibitors have been just shifting from the bench to the bedside, but the combination scheme in cancer therapy has not been fully explored yet. Recently, a revolutionary drug design combining PARP inhibitors and EZH2 inhibitors based on PROTAC techniques has shed light on the resolution of PARP inhibitor resistance. This review summarizes the interactions between EZH2 and PARP, suggests the potential PARP inhibitor sensitization effect of EZH2 inhibitors, and further discusses the potential populations that benefit from the combination of EZH2 inhibitors and PARP inhibitors.
Collapse
Affiliation(s)
- Xi Zhang
- Department of Obstetrics and Gynecology, Peking University Third Hospital, Haidian, China
| | - Xiao Huo
- Center of Basic Medical Research, Institute of Medical Innovation and Research, Peking University Third Hospital, Haidian, China
- Biobank, Peking University Third Hospital, Haidian, China
| | - Hongyan Guo
- Department of Obstetrics and Gynecology, Peking University Third Hospital, Haidian, China
- *Correspondence: Lixiang Xue, ; Hongyan Guo,
| | - Lixiang Xue
- Center of Basic Medical Research, Institute of Medical Innovation and Research, Peking University Third Hospital, Haidian, China
- Biobank, Peking University Third Hospital, Haidian, China
- *Correspondence: Lixiang Xue, ; Hongyan Guo,
| |
Collapse
|
8
|
Dai Y, Cheng Z, Faas M, Huo X. P10-01 Targeted lipidomics reveals polycyclic aromatic hydrocarbon exposure relates to oxylipin profile disorders and inflammatory response in children. Toxicol Lett 2022. [DOI: 10.1016/j.toxlet.2022.07.432] [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]
|
9
|
Kang T, Ding X, Zhao J, Li X, Xie R, Jiang H, He L, Hu Y, Liang J, Zhou G, Huo X. Influence of improved behavioral inhibition on decreased cue-induced craving in heroin use disorder: A preliminary intermittent theta burst stimulation study. J Psychiatr Res 2022; 152:375-383. [PMID: 35797913 DOI: 10.1016/j.jpsychires.2022.06.010] [Citation(s) in RCA: 6] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/25/2021] [Revised: 06/02/2022] [Accepted: 06/06/2022] [Indexed: 11/18/2022]
Abstract
BACKGROUND Impaired behavioral inhibition is a critical factor in drug addiction and relapse. Repetitive transcranial magnetic stimulation (rTMS) reduces the craving of heroin-addicted individuals for drug-related cues. However, it is unclear whether this technique also improves impaired behavioral inhibition and how improved behavioral inhibition affects craving. OBJECTIVE The intermittent theta-burst stimulation (iTBS) has been recently shown to be non-inferior relative to rTMS for depression. Here, we aim to investigate the effect of iTBS on heroin-addicted individuals' behavioral inhibition and cue-induced craving and the relationship between the alteration of behavioral inhibition and craving. METHOD 42 of 56 initially recruited individuals with the heroin-use disorder in the abstinent-course treatment were randomized to undergo active or sham iTBS to the left dorsolateral prefrontal cortex and received three daily iTBS treatments for 10 consecutive days. We measured participants' performance during a two-choice oddball task (80% standard and 20% deviant trials) and heroin-related cue-induced craving before and immediately after treatment. RESULTS The group that received active iTBS showed significantly improved two-choice oddball task performance after 10 days of intervention compared to both pre-intervention and the group who received sham iTBS. Similarly, a significant reduction in cue-induced craving was observed after following the intervention in the active iTBS group but not the sham iTBS group. The moderation model indicated that iTBS categories play a significant moderating role in the relationship between accuracy cost changing and altered cue-induced craving. CONCLUSIONS The iTBS treatment protocol positively affects behavioral inhibition in patients with heroin addiction. Improvements in behavioral inhibition can substantially reduce craving.
Collapse
Affiliation(s)
- Tiejun Kang
- School of Psychology, Northwest Normal University, Lanzhou, Gansu, China; Key Laboratory of Behavioral and Mental Health of Gansu Province, Lanzhou, Gansu, China.
| | - Xiaobin Ding
- School of Psychology, Northwest Normal University, Lanzhou, Gansu, China; Key Laboratory of Behavioral and Mental Health of Gansu Province, Lanzhou, Gansu, China.
| | - Jing Zhao
- School of Psychology, Northwest Normal University, Lanzhou, Gansu, China
| | - Xiaoyan Li
- School of Psychology, Northwest Normal University, Lanzhou, Gansu, China
| | - Renqian Xie
- Lanzhou Hospital of Addiction Rehabilitation, Lanzhou, Gansu, China
| | - Heng Jiang
- School of Psychology, Northwest Normal University, Lanzhou, Gansu, China
| | - Liang He
- School of Psychology, Northwest Normal University, Lanzhou, Gansu, China
| | - Yajuan Hu
- School of Psychology, Northwest Normal University, Lanzhou, Gansu, China
| | - Jingjing Liang
- School of Psychology, Northwest Normal University, Lanzhou, Gansu, China
| | - Guifen Zhou
- Lanzhou Hospital of Addiction Rehabilitation, Lanzhou, Gansu, China
| | - Xiao Huo
- Lanzhou Hospital of Addiction Rehabilitation, Lanzhou, Gansu, China
| |
Collapse
|
10
|
Zhang T, Guo Z, Huo X, Gong Y, Li C, Huang J, Wang Y, Feng H, Ma X, Jiang C, Yin Q, Xue L. Dysregulated lipid metabolism blunts the sensitivity of cancer cells to EZH2 inhibitor. EBioMedicine 2022; 77:103872. [PMID: 35158113 PMCID: PMC8850333 DOI: 10.1016/j.ebiom.2022.103872] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 01/25/2022] [Accepted: 01/25/2022] [Indexed: 11/17/2022] Open
Abstract
Background Sensitivity has been a key issue for Enhancer of zeste homolog 2 (EZH2) inhibitors in cancer therapy. The EZH2 inhibitor EPZ-6438 was first approved by the US Food and Drug Administration (FDA) in 2020. However, its inadequate anti-cancer activity in solid tumors limits its clinical application. In this study, we utilized the multiple cancer cell lines, which are less sensitive to the EZH2 inhibitor GSK126, combining animal model and clinical data to investigate the underlying mechanism. Methods IncuCyte S3 was used to explore the difference in the responsiveness of hematological tumor cells and solid tumor cells to GSK126. Transcriptome and metabolome of B16F10 cells after GSK126 treatment were analyzed and the distinct changes in the metabolic profile were revealed. Real-time quantitative PCR and western blot experiments were used to further verify the multi-omics data. ChIP-qPCR was performed to detected H3K27me3 enrichment of target genes. Finally, the anti-tumor effects of combining GSK126 and lipid metabolism drugs were observed with IncuCyte S3 platform, CCK-8 and animal model respectively. Findings We found that although the proliferative phenotype did not show strong difference upon treatment with GSK126, the transcriptome and metabolome changed profoundly. GSK126 treatment led to broad shifts in glucose, amino acid, and lipid metabolism. Lipid synthesis was strengthened manifested by the increasing abundance of unsaturated fatty acids. SCD1 and ELOVL2 were regulated by H3K27me3 at gene regulatory region, and upregulated by EZH2 knockdown and inhibitors. SCD1 knockdown increased cellular sensitivity to GSK126. Based on the findings above, the application of the combination with SCD1 inhibitor significantly attenuated the proliferation of cancer and increased the sensitivity to GSK126 by suppressing desaturation of fatty acids. Interpretation Dysregulated lipid metabolism can blunt the sensitivity of cancer cells to GSK126. These characteristics shed light on the novel combination therapy strategies to combat tumor resistance. Funding National Natural Science Foundation of China (No. 81672091, No.91749107 and No. 81972966).
Collapse
Affiliation(s)
- Tengrui Zhang
- Department of Radiation Oncology, Peking University Third Hospital Cancer Center, Peking University Third Hospital, Beijing 100191, China.
| | - Zhengyang Guo
- Center of Basic Medical Research, Institute of Medical Innovation and Research, Peking University Third Hospital, 49 North Garden Road, Haidian District, Beijing 100191, China.
| | - Xiao Huo
- Center of Basic Medical Research, Institute of Medical Innovation and Research, Peking University Third Hospital, 49 North Garden Road, Haidian District, Beijing 100191, China.
| | - Yueqing Gong
- Department of Gastroenterology, Peking University Third Hospital, Beijing 100191, China.
| | - Chen Li
- Department of Radiation Oncology, Peking University Third Hospital Cancer Center, Peking University Third Hospital, Beijing 100191, China.
| | - Jiaqi Huang
- Department of Radiation Oncology, Peking University Third Hospital Cancer Center, Peking University Third Hospital, Beijing 100191, China.
| | - Yan Wang
- Center of Basic Medical Research, Institute of Medical Innovation and Research, Peking University Third Hospital, 49 North Garden Road, Haidian District, Beijing 100191, China.
| | - Hao Feng
- Faculty of science, Biology Department, McGill University, Montreal, QC H3A 0C8, Canada.
| | - Xiaojuan Ma
- Center of Basic Medical Research, Institute of Medical Innovation and Research, Peking University Third Hospital, 49 North Garden Road, Haidian District, Beijing 100191, China.
| | - Changtao Jiang
- Center of Basic Medical Research, Institute of Medical Innovation and Research, Peking University Third Hospital, 49 North Garden Road, Haidian District, Beijing 100191, China; Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Peking University, Beijing 100191, China.
| | - Qianqian Yin
- Center of Basic Medical Research, Institute of Medical Innovation and Research, Peking University Third Hospital, 49 North Garden Road, Haidian District, Beijing 100191, China.
| | - Lixiang Xue
- Department of Radiation Oncology, Peking University Third Hospital Cancer Center, Peking University Third Hospital, Beijing 100191, China; Center of Basic Medical Research, Institute of Medical Innovation and Research, Peking University Third Hospital, 49 North Garden Road, Haidian District, Beijing 100191, China.
| |
Collapse
|
11
|
Huo X, Sun H, Liu S, Liang B, Bai H, Wang S, Li S. Identification of a Prognostic Signature for Ovarian Cancer Based on the Microenvironment Genes. Front Genet 2021; 12:680413. [PMID: 34054929 PMCID: PMC8155613 DOI: 10.3389/fgene.2021.680413] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Accepted: 04/15/2021] [Indexed: 12/20/2022] Open
Abstract
Background: Ovarian cancer is highly malignant and has a poor prognosis in the advanced stage. Studies have shown that infiltration of tumor microenvironment cells, immune cells and stromal cells has an important impact on the prognosis of cancers. However, the relationship between tumor microenvironment genes and the prognosis of ovarian cancer has not been studied. Methods: Gene expression profiles and SNP data of ovarian cancer were downloaded from the TCGA database. Cluster analysis, WGCNA analysis and univariate survival analysis were used to identify immune microenvironment genes as prognostic signatures for predicting the survival of ovarian cancer patients. External data were used to evaluate the signature. Moreover, the top five significantly correlated genes were evaluated by immunohistochemical staining of ovarian cancer tissues. Results: We systematically analyzed the relationship between ovarian cancer and immune metagenes. Immune metagenes expression were associated with prognosis. In total, we identified 10 genes related to both immunity and prognosis in ovarian cancer according to the expression of immune metagenes. These data reveal that high expression of ETV7 (OS, HR = 1.540, 95% CI 1.023–2.390, p = 0.041), GBP4 (OS, HR = 1.834, 95% CI 1.242–3.055, p = 0.004), CXCL9 (OS, HR = 1.613, 95% CI 1.080 –2.471, p = 0.021), CD3E (OS, HR = 1.590, 95% CI 1.049 –2.459, p = 0.031), and TAP1 (OS, HR = 1.766, 95% CI 1.163 –2.723, p = 0.009) are associated with better prognosis in patients with ovarian cancer. Conclusion: Our study identified 10 immune microenvironment genes related to the prognosis of ovarian cancer. The list of tumor microenvironment-related genes provides new insights into the underlying biological mechanisms driving the tumorigenesis of ovarian cancer.
Collapse
Affiliation(s)
- Xiao Huo
- Peking University Third Hospital Institute of Medical Innovation and Research, Beijing, China
| | - Hengzi Sun
- Department of Obstetrics and Gynecology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Shuangwu Liu
- School of Medicine, ShanDong University, Jinan, China
| | - Bing Liang
- Department of Obstetrics and Gynecology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Huimin Bai
- Department of Obstetrics and Gynecology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Shuzhen Wang
- Department of Obstetrics and Gynecology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Shuhong Li
- Department of Obstetrics and Gynecology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| |
Collapse
|
12
|
Huo X, Sun H, Cao D, Yang J, Peng P, Kong L, Chen F, Shen K, Li S. Evaluation of Cervical High-Grade Squamous Intraepithelial Lesions-Correlated Markers as Triage Strategy for Colposcopy After Co-Testing. Onco Targets Ther 2021; 14:2075-2084. [PMID: 33776454 PMCID: PMC7989978 DOI: 10.2147/ott.s300269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Accepted: 03/08/2021] [Indexed: 12/09/2022] Open
Abstract
Background Colposcopy was referred in cases with severe abnormalities in co-testing. Although p16/Ki67 dual staining reduced the referral rate, its sensitivity and specificity need to be enhanced. Methods The expressions of p16, Ki-67, SMAD3, YAP1, RELA were evaluated in the colposcopy referral population. The inclusion criteria included 30–60 years and diagnosed with HPV16/18-positive, other HR-HPV-positive with ASCUS, LSIL, AGC (atypical glandular cell) in co-testing. Colposcopies, endocervical curettages of cervical biopsies were also collected. Cases were excluded if there were no biopsies, if the interval between a cervical screening test and biopsies was more than 6 months, or if insufficient tissue was available as a formalin-fixed paraffin-embedded block. The pathology was independently reviewed by two pathologists. Discrepant interpretations were adjudicated by a third pathologist. Results In total, 1194 of 1273 cases who were referred to colposcopy were evaluated in the present study. The sensitivity and specificity of p16+ combined with Ki-67+ for predicting CIN2+ were 62.1% and 89.5%, respectively. p16+ combined with YAP1+ and/or RELA+ provided a sensitivity and specificity of 70.9% and 89.5%, respectively, while 72.8% and 86.4% were achieved by p16+ combined with YAP1+ and/or SMAD3+ and/or RELA+. In HPV16/18+ and LSIL subgroups, the sensitivity and specificity of p16+ combined with Ki-67+ for predicting CIN2+ were 67.7% and 87.6%, respectively, for the former group and 58.6%, 88.8%, respectively, for the latter group. p16+, YAP1+/RELA+ showed a better performance for predicting CIN2+ with a better sensitivity and considerable specificity in the other HPV+ combined with ASCUS group than were achieved by p16+ combined with Ki-67+. RELA+ and the combination of p16 and RELA/YAP1 also provided the Max AUC area. Conclusion Our study shows that RELA and the combination of p16 and RELA/YAP1 achieved better sensitivity and specificity for detecting morphologically CIN2+ lesions.
Collapse
Affiliation(s)
- Xiao Huo
- Center of Basic Medical Research, Peking University Third Hospital Institute of Medical Innovation and Research, Beijing, People's Republic of China
| | - Hengzi Sun
- Department of Obstetrics and Gynecology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, People's Republic of China.,Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China
| | - Dongyan Cao
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China
| | - Jiaxin Yang
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China
| | - Peng Peng
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China
| | - Linghua Kong
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China
| | - Fei Chen
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China
| | - Keng Shen
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China
| | - Shuhong Li
- Department of Obstetrics and Gynecology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, People's Republic of China
| |
Collapse
|
13
|
Chen P, Li Z, Li Y, Ahmad SS, Kamal MA, Huo X. The Language Development Via FOXP2 in Autism Spectrum Disorder: A Review. Curr Pharm Des 2021; 26:4789-4795. [PMID: 32912122 DOI: 10.2174/1381612826666200909141108] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Accepted: 07/23/2020] [Indexed: 01/18/2023]
Abstract
BACKGROUND An increasing number of newborn children in numerous nations are enrolled in early childhood education programs, and instructors, in this way, assume a focal job in invigorating language improvement in these youthful kids. Kids with language issues are found to have a higher risk for future scholarly challenges and learning inabilities. Language advancement among kids is an intricate procedure and vital for correspondence. The shortcomings in the utilization of grammatical structures may lessen the useful utilization of language for verbally expressive kids with autism spectrum disorder and exacerbate troubles with academic and social expertise advancement. RESULTS FOXP2, the single principal gene connected to a speech and language issue, is significant for the right execution of complex motor behaviors used for speech. In any case, changes in FOXP2 lead to a speech/language issue portrayed by childhood apraxia of speech. These days, language learning is fundamentally required for kids who need to move to different nations to pursue the instructive frameworks and be helpful individuals or residents of those nations. CONCLUSION The purpose of this study was to explore the role of FOXP2 in language disorder and its management for children's language and communication development.
Collapse
Affiliation(s)
- Panpan Chen
- Department of Pediatric, Binzhou People's Hospital, Binzhou, Shandong Province, 256600, China
| | - Zhongying Li
- Department of Pediatric, Binzhou People's Hospital, Binzhou, Shandong Province, 256600, China
| | - Yanfei Li
- Department of Pediatric, Binzhou People's Hospital, Binzhou, Shandong Province, 256600, China
| | - Syed S Ahmad
- Department of Bioengineering, Faculty of Engineering, Integral University, Lucknow, India
| | - Mohammad A Kamal
- King Fahd Medical Research Center, King Abdulaziz University, P.O. Box 80216, Jeddah 21589, Saudi Arabia.,Enzymoics; Novel Global Community Educational Foundation, 7 Peterlee Place, Hebersham, NSW 2770, Australia
| | - Xiao Huo
- Department of Pediatrics & Quality Control Office, The Second People Hospital of Dezhou, No. 55 Fangzhi Street, Yunhe Economic Development Zone, Dezhou City, Shandong Province, 253000, China
| |
Collapse
|
14
|
Huo X, Zhou X, Peng P, Yu M, Zhang Y, Yang J, Cao D, Sun H, Shen K. Identification of a Six-Gene Signature for Predicting the Overall Survival of Cervical Cancer Patients. Onco Targets Ther 2021; 14:809-822. [PMID: 33574675 PMCID: PMC7873033 DOI: 10.2147/ott.s276553] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Accepted: 01/06/2021] [Indexed: 01/22/2023] Open
Abstract
Background Although the incidence of cervical cancer has decreased in recent decades with the development of human papillomavirus vaccines and cancer screening, cervical cancer remains one of the leading causes of cancer-related death worldwide. Identifying potential biomarkers for cervical cancer treatment and prognosis prediction is necessary. Methods Samples with mRNA sequencing, copy number variant, single nucleotide polymorphism and clinical follow-up data were downloaded from The Cancer Genome Atlas database and randomly divided into a training dataset (N=146) and a test dataset (N=147). We selected and identified a prognostic gene set and mutated gene set and then integrated the two gene sets with the random survival forest algorithm and constructed a prognostic signature. External validation and immunohistochemical staining were also performed. Results We obtained 1416 differentially expressed prognosis-related genes, 624 genes with copy number amplification, 1038 genes with copy number deletion, and 163 significantly mutated genes. A total of 75 candidate genes were obtained after overlapping the differentially expressed genes and the genes with genomic variations. Subsequently, we obtained six characteristic genes through the random survival forest algorithm. The results showed that high expression of SLC19A3, FURIN, SLC22A3, and DPAGT1 and low expression of CCL17 and DES were associated with a poor prognosis in cervical cancer patients. We constructed a six-gene signature that can separate cervical cancer patients according to their different overall survival rates, and it showed robust performance for predicting survival (training set: p ˂ 0.001, AUC = 0.82; testing set: p ˂ 0.01, AUC = 0.59). Conclusion Our study identified a novel six-gene signature and nomogram for predicting the overall survival of cervical cancer patients, which may be beneficial for clinical decision-making for individualized treatment.
Collapse
Affiliation(s)
- Xiao Huo
- Medical Research Center, Peking University Third Hospital, Beijing,, People's Republic of China
| | - Xiaoshuang Zhou
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China.,Department of Ultrasound, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Beijing, People's Republic of China
| | - Peng Peng
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China
| | - Mei Yu
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China
| | - Ying Zhang
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China
| | - Jiaxin Yang
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China
| | - Dongyan Cao
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China
| | - Hengzi Sun
- Department of Obstetrics and Gynecology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, People's Republic of China
| | - Keng Shen
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China
| |
Collapse
|
15
|
Li J, Zhang L, Liu J, Bai X, Zhang H, Huo X. Pattern and predictors of one-year mortality in heart failure: China PEACE Prospective Heart Failure Study. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.1188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
Heart failure (HF) is a global public health problem, which causes high mortality.
Purpose
To characterize the pattern of 1-year mortality, including the rate and timing of death, and to identify clinical and non-clinical factors predicting 1-year all-cause mortality after hospitalization for HF.
Methods
We prospectively enrolled patients who were hospitalized primarily for HF and discharged alive from 52 hospitals across 20 provinces in China between August 2016 and May 2018, and followed them up by face-to-face interview or telephone. Patients' fatal status were ascertained according to investigators' report and national death registration. Cognitive function was measured by Mini-Cog score and health status was measured by Kansas City Cardiomyopathy Questionnaire (KCCQ). We fitted a Cox proportional hazards model accounting for hospital as random effects to identify patient characteristics associated with 1-year all-cause mortality.
Results
Among 4899 patients, 4882 (97.7%) completed 1-year follow-up. The median (IQR) age was 67 (57, 75) years and 37.5% were women. The main etiology of HF was ischemic heart disease (53.1%), 66.0% of patients had history of HF before the index hospitalization. Among 813 deaths within one year after discharge, 13.4% and 58.4% occurred within one months and six months, respectively. Systolic blood pressure <100mmHg at admission (hazard ratio [HR] 2.33, 95% CI 1.76–3.08), NYHA class IV (HR 1.37, 95% CI 1.1–1.7), anemia (HR 1.3, 95% CI 1.1–1.54), hs-cTNT≥18 ng/L (HR 1.84, 95% CI 1.53–2.22), hyponatremia (HR 1.66, 95% CI 1.38–1.98), LVEF<40% (HR 1.25, 95% CI 1.02–1.53), QRS interval≥120mms (HR 1.19, 95% CI 1.02–1.4), Cognitive impairment (HR 1.25, 95% CI 1.07–1.46) and low KCCQ score (HR 1.24 per 25 score decrease, 95% CI 1.11–1.39) were associated with higher risks of 1-year all-cause mortality. In contrast, female (HR 0.83, 0.7–0.99), sleep apnea syndrome (HR 0.55, 95% CI 0.35–0.88) were associated with lower risks of 1-year all-cause mortality.
Conclusion
In China, one in six patients hospitalized for HF die within 1-year, with the majority occurring during the first 6 months after hospital discharge. Both clinical and non-clinical factors predict 1-year mortality.
Funding Acknowledgement
Type of funding source: Other. Main funding source(s): The National Key Research and Development Program from the Ministry of Science and Technology of China; the CAMS Innovation Fund for Medical Science; the 111 Project from the Ministry of Education of China
Collapse
Affiliation(s)
- J Li
- Fuwai Hospital, CAMS&PUMC, National Center for Cardiovascular Diseases, Beijing, China
| | - L Zhang
- Fuwai Hospital, CAMS&PUMC, National Center for Cardiovascular Diseases, Beijing, China
| | - J Liu
- Fuwai Hospital, CAMS&PUMC, National Center for Cardiovascular Diseases, Beijing, China
| | - X Bai
- Fuwai Hospital, CAMS&PUMC, National Center for Cardiovascular Diseases, Beijing, China
| | - H Zhang
- Fuwai Hospital, CAMS&PUMC, National Center for Cardiovascular Diseases, Beijing, China
| | - X Huo
- Fuwai Hospital, CAMS&PUMC, National Center for Cardiovascular Diseases, Beijing, China
| |
Collapse
|
16
|
Huo X, Sun H, Qian Q, Ma X, Peng P, Yu M, Zhang Y, Yang J, Cao D, Gui T, Shen K. CYP27B1 Downregulation: A New Molecular Mechanism Regulating EZH2 in Ovarian Cancer Tumorigenicity. Front Cell Dev Biol 2020; 8:561804. [PMID: 33163485 PMCID: PMC7591459 DOI: 10.3389/fcell.2020.561804] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Accepted: 09/22/2020] [Indexed: 12/24/2022] Open
Abstract
Background Ovarian cancer has the highest mortality rate among gynecologic cancers, and most patients are diagnosed in advanced stages. Enhancer of zeste homolog 2 (EZH2) is a major tumor marker and an effective therapeutic target for ovarian cancer, but the underlying molecular mechanism remains unclear. The present study investigated the biological effects of EZH2 knockout in SKOV3 cells in vitro and in vivo and explored the molecular mechanism by integrated analysis of messenger RNA sequencing (mRNA-seq) and chromatin immunoprecipitation sequencing (ChIP-seq) data. Methods The CRISPR/Cas9 system was used to establish EZH2 knockout SKOV3 cells. Protein expression was evaluated by Western blotting. The effect of EZH2 on ovarian cancer was evaluated in vitro with MTT, wound healing, Transwell, and apoptosis assays and in vivo with a xenograft model. mRNA-seq and ChIP-seq were performed to explore the molecular mechanism underlying the biological function of EZH2. Immunohistochemical staining (IHC) of tissue arrays was used to analyze the correlations among EZH2 and CYP27B1 expressions and prognosis. Results We obtained three EZH2 knockout subclones. EZH2 knockout SKOV3 cells exhibited significantly suppressed proliferation, migration, and invasion and a significantly increased apoptosis rate. The subcutaneous tumor formation rate decreased from 100 to 0% in the EZH2 knockout group. Integrated analysis of the mRNA-seq and ChIP-seq data identified 1,455 significantly upregulated genes with matching downregulated trimethylation of histone H3 lysine 27 (H3K27me3) methylation binding sites in 1b11H cells compared to SKOV3 cells. The set of downregulated genes in EZH2 knockout cells was highly enriched in genes regulating the activation of steroid biosynthesis; the top-ranked hub gene was CYP27B1. The EZH2 and CYP27B1 expression levels showed a statistically significant inverse correlation, which was also associated with unfavorable prognosis. The in vitro experiment demonstrated that CYP27B1 can suppress the proliferation, migration, and invasion of ovarian cancer cells. Moreover, the levels of AKT and p-AKT were significantly increased, whereas STAT3 was downregulated, in 1b11H cells compared to SKOV3 cells. Moreover, STAT3 and AKT overexpression was observed in 1b11H siRNA for CYP27B1 (siCYP27B1) cells. Conclusion EZH2 plays an important role in promoting cell proliferation, migration, and invasion in ovarian cancer by regulating the core steroid biosynthesis gene via H3K27me3 methylation. Moreover, CYP27B1, the steroid biosynthesis hub gene, might be a novel therapeutic target for ovarian cancer.
Collapse
Affiliation(s)
- Xiao Huo
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Hengzi Sun
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.,Department of Obstetrics and Gynecology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Qiuhong Qian
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.,Department of Obstetrics and Gynecology, Qilu Hospital, Shan Dong University, Jinan, China
| | - Xiangwen Ma
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Peng Peng
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Mei Yu
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Ying Zhang
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jiaxin Yang
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Dongyan Cao
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Ting Gui
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Keng Shen
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| |
Collapse
|
17
|
Yu M, Wang Y, Yuan Z, Zong X, Huo X, Cao DY, Yang JX, Shen K. Fertility-Sparing Treatment in Young Patients With Grade 2 Presumed Stage IA Endometrioid Endometrial Adenocarcinoma. Front Oncol 2020; 10:1437. [PMID: 32983972 PMCID: PMC7477323 DOI: 10.3389/fonc.2020.01437] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2019] [Accepted: 07/07/2020] [Indexed: 12/17/2022] Open
Abstract
Purpose: To investigate the efficacy of fertility-sparing treatment for young women with grade 2 presumed stage IA endometrioid endometrial adenocarcinoma (EEA). Methods: We performed a retrospectively review of eight patients affected by grade 2 presumed stage IA endometrioid endometrial adenocarcinoma who underwent fertility-sparing treatment in the Peking Union Medical College Hospital between 2011 and 2018. Results: The median age of patients was 26 years (range, 22-35 years). Complete response (CR) was found in seven of the eight cases. The median time to response was 3 months (range, 3-9 months). Among patients who achieved CR, three had recurrence and were treated with second-line fertility-sparing therapy. Two of the three recurrent patients achieved CR, and one patient subsequently conceived. Pregnancies and successful deliveries were achieved in two of four patients. The average follow-up period was 31 months (range, 21-77 months). Conclusions: Fertility-sparing therapy is a feasible treatment option in patients with presumed stage IA, grade 2 endometrial cancer. Although our results are encouraging, they are based on very limited numbers, and patients should be informed the risk of tumor progression during treatment. Further evaluations are still required before recommending fertility-sparing therapy to endometrial cancer patients with more advanced disease in routine practice.
Collapse
Affiliation(s)
- Mei Yu
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Yao Wang
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Zhen Yuan
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Xuan Zong
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Xiao Huo
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Dong-Yan Cao
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Jia-Xin Yang
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Keng Shen
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| |
Collapse
|
18
|
Yuan Z, Huo X, Jiang D, Yu M, Cao D, Wu H, Shen K, Yang J, Zhang Y, Zhou H, Wang Y. Clinical Characteristics and Mutation Analyses of Ovarian Sertoli-Leydig Cell Tumors. Oncologist 2020; 25:e1396-e1405. [PMID: 32557933 DOI: 10.1634/theoncologist.2020-0110] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Accepted: 05/28/2020] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND There are limited studies on Sertoli-Leydig cell tumors (SLCTs) and no data in the population of Chinese patients with SLCTs from the genetic level. In addition, previous studies on SLCTs have focused exclusively on mutations in the DICER1 gene and no data exists on the genetic landscape of SLCTs. METHODS Patients with moderately or poorly differentiated SLCTs who underwent surgical resection between January 2012 and October 2018 in our institution were recruited. Whole exome sequencing was performed on formalin-fixed, paraffin-embedded tumor tissue and peripheral blood or normal tissue samples. RESULTS Seventeen patients were recruited with 19 tumor samples. The rate of tumor-associated germline mutations was 6 of 17 (35.3%), and that of DICER1 germline mutations was 4 of 17 (23.5%). Regarding clinical relapse, patients with germline tumor-associated mutations had significantly poorer prognosis than those without (p = .007), and those with germline DICER1 mutations were relatively more likely to exhibit clinical relapse, although not to a significant degree (p = .069). Regarding somatic mutations, firstly, the subclone evolution analysis demonstrated that the two tumors on the contralateral ovary were primary tumors, respectively. Secondly, somatic mutations were most commonly found in CDC27 (10/19, 52.6%), DICER1 (4/19, 21.1%), and MUC22 (4/19, 21.1%). And the analysis of cancer cell fractions showed that DICER1 mutations were correlated with tumorigenesis of SLCTs. The rates of germline and somatic DICER1 mutations were higher in patients who were younger than 18 years than those in older patients (p = .022 and p = .001, respectively). CONCLUSION Our study indicates that genetic testing may have important clinical significance for patients with SLCTs, particularly for younger patients. IMPLICATIONS FOR PRACTICE Bilateral ovarian Sertoli-Leydig cell tumors were verified to be primary tumors from the genetic perspective. The rates of germline and somatic DICER1 mutations were 4 of 17 (23.5%) and 4 of 19 (21.1%), respectively. The rates of germline and somatic DICER1 mutations were higher in patients who were younger than 18 years than those in older patients (p = .022 and p = .001, respectively).
Collapse
Affiliation(s)
- Zhen Yuan
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, People's Republic of China
| | - Xiao Huo
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, People's Republic of China
| | - Dezhi Jiang
- Department of Bioinformatics, Berry Oncology Corporation, Beijing, People's Republic of China
| | - Mei Yu
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, People's Republic of China
| | - Dongyan Cao
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, People's Republic of China
| | - Huanwen Wu
- Department of Pathology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, People's Republic of China
| | - Keng Shen
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, People's Republic of China
| | - Jiaxin Yang
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, People's Republic of China
| | - Ying Zhang
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, People's Republic of China
| | - Huimei Zhou
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, People's Republic of China
| | - Yao Wang
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, People's Republic of China
| |
Collapse
|
19
|
Zhou R, Liu Y, Wang Y, Huo X, Zhu J, Zhang T. Clinicopathological characteristics and prognosis analysis of ovarian metastases in colorectal cancer: a single-center experience. Int J Clin Oncol 2020; 25:1822-1829. [PMID: 32591962 DOI: 10.1007/s10147-020-01730-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Accepted: 06/17/2020] [Indexed: 01/09/2023]
Abstract
PURPOSE This study aimed to improve the management of ovarian metastases (OM) in colorectal cancer (CRC) by evaluating the clinicopathological characteristics, therapeutic strategies, and prognostic factors associated with OM originating from CRC. METHODS Medical records of patients who were histopathologically diagnosed with OM of CRC origin were reviewed from January 2011 to December 2018 in our medical center. Data related to clinicopathological characteristics, therapeutic strategies, and survival time were recorded and analyzed. Survival and prognosis analyses were carried out to identify variables significantly associated with the outcomes. RESULTS Forty-six patients were included in the study with a median follow-up of 14 months. Premenopausal (< 50 years) and colon cancer patients were more likely to develop OM. Synchronous OM was found in 34 patients and elevated carbohydrate antigen 125 value could be seen in 67.4% of patients. Bilateral ovarian involvement (27/46, 58.8%) and combined extra-ovarian metastases (32/46, 69.6%) were common in included patients. Complete cytoreduction surgery (R0 resection) was finally achieved in 19 of included patients and 41 patients received postoperative chemotherapy. However, the overall prognosis remains poor, with a median survival time of only 12 months. In univariate analysis, histological types (P = 0.002), peritoneal metastasis (P < 0.0001), the extent of metastatic lesions (P = 0.0001), and completeness of cytoreduction surgery (P < 0.0001) were found to be closely related to prognosis. Finally, completeness of cytoreduction surgery was considered to be the independent determinant of patients' outcome (HR 0.186, 95% CI 0.047-0.727, P = 0.016) by multivariate analysis. CONCLUSIONS In multitudinous factors, complete cytoreduction surgery (R0 resection) may provide survival benefits in patients with OM of CRC origin. Thus, it is reasonable to recommend aggressive surgery with curative intent even if extra-ovarian metastases are present. Furthermore, postoperative chemotherapy may exert a positive effect on the treatment, but needs to be confirmed by large-scale trials with more participants in the future.
Collapse
Affiliation(s)
- Rui Zhou
- Department of Oncology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, People's Republic of China
| | - Ya Liu
- Department of Oncology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, People's Republic of China
| | - Yifei Wang
- Department of Oncology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, People's Republic of China
| | - Xiao Huo
- Department of Oncology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, People's Republic of China
| | - Jing Zhu
- Department of Oncology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, People's Republic of China.
| | - Tao Zhang
- Department of Oncology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, People's Republic of China.
| |
Collapse
|
20
|
Zhou J, Huo X, Xue Y. Comments on Min et al.: Effects of anti-osteoporosis medications on radiological and clinical results after acute osteoporotic spinal fractures: a retrospective analysis of prospectively designed study. Osteoporos Int 2020; 31:1181. [PMID: 32088733 DOI: 10.1007/s00198-020-05355-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Accepted: 02/17/2020] [Indexed: 11/26/2022]
Affiliation(s)
- J Zhou
- Department of Orthopaedic Surgery, Tianjin Medical University General Hospital, Heping District, Tianjin, 300052, China
| | - X Huo
- Department of Orthopaedic Surgery, Tianjin Medical University General Hospital, Heping District, Tianjin, 300052, China
| | - Y Xue
- Department of Orthopaedic Surgery, Tianjin Medical University General Hospital, Heping District, Tianjin, 300052, China.
| |
Collapse
|
21
|
Yang M, Huo X, Gao F, Wang A, Ma N, Shi H, Chen W, Wang S, Wang Y, Miao Z. Low‐dose rescue tirofiban in mechanical thrombectomy for acute cerebral large‐artery occlusion. Eur J Neurol 2020; 27:1056-1061. [DOI: 10.1111/ene.14170] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Accepted: 02/08/2020] [Indexed: 11/28/2022]
Affiliation(s)
- M. Yang
- Department of Interventional Neuroradiology Beijing Tiantan Hospital Capital Medical University BeijingChina
| | - X. Huo
- Department of Interventional Neuroradiology Beijing Tiantan Hospital Capital Medical University BeijingChina
| | - F. Gao
- Department of Interventional Neuroradiology Beijing Tiantan Hospital Capital Medical University BeijingChina
| | - A. Wang
- Department of Neurology Beijing Tiantan Hospital BeijingChina
| | - N. Ma
- Department of Interventional Neuroradiology Beijing Tiantan Hospital Capital Medical University BeijingChina
| | - H. Shi
- Department of Neurology Nanjing No. 1 Hospital NanjingChina
| | - W. Chen
- Department of Neurology Zhangzhou City Hospital ZhangzhouChina
| | - S. Wang
- Department of Neurology First Affiliated Hospital of Jilin University Jilin China
| | - Y. Wang
- Department of Neurology Beijing Tiantan Hospital BeijingChina
| | - Z. Miao
- Department of Interventional Neuroradiology Beijing Tiantan Hospital Capital Medical University BeijingChina
| |
Collapse
|
22
|
LUAN Z, Huo X, Ming W, Sun X, Du C, Luo Z, Zhou Y, He Y, Chen L, Zhang X, Guan Y. SUN-042 PREGNANE X RECEPTOR (PXR) IS A NOVEL THERAPEUTIC TARGET FOR THE TREATMENT OF CISPLATIN-INDUCED NEPHROTOXICITY IN MICE. Kidney Int Rep 2020. [DOI: 10.1016/j.ekir.2020.02.565] [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: 11/28/2022] Open
|
23
|
Huo X, Yossifon G. Tunable Electrorheological Fluid Microfluidic Rectifier: Irreversibility of Viscous Flow Due to Spatial Asymmetry Induced Memory Effects. Phys Rev Lett 2019; 123:194502. [PMID: 31765210 DOI: 10.1103/physrevlett.123.194502] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Indexed: 06/10/2023]
Abstract
Because of the reversibility of viscous flow it is not expected to obtain a fluidic rectifier simply from geometrical asymmetry without any moving mechanical parts. Here, we found a counterexample by using spatial asymmetry combined with an electric field to inject memory effects that render the flow irreversible. This stems from the strong dependency of the electrorheological fluid particle chaining on the flow direction. A funnel-shaped microfluidic rectifier with electrorheological fluid has been shown to be easily and rapidly tuned via the applied electric field to achieve an almost order of magnitude rectification along with pressure oscillations. These findings are of importance for the realization of fluidic diodes, rectifiers, and ratchets.
Collapse
Affiliation(s)
- X Huo
- Faculty of Mechanical Engineering, Micro- and Nanofluidics Laboratory, Technion-Israel Institute of Technology, Technion City 32000, Israel
| | - G Yossifon
- Faculty of Mechanical Engineering, Micro- and Nanofluidics Laboratory, Technion-Israel Institute of Technology, Technion City 32000, Israel
| |
Collapse
|
24
|
Huo X, Sun H, Liu Q, Ma X, Peng P, Yu M, Zhang Y, Cao D, Shen K. Clinical and Expression Significance of AKT1 by Co-expression Network Analysis in Endometrial Cancer. Front Oncol 2019; 9:1147. [PMID: 31781484 PMCID: PMC6852383 DOI: 10.3389/fonc.2019.01147] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2019] [Accepted: 10/16/2019] [Indexed: 12/24/2022] Open
Abstract
Introduction: Endometrial cancer is one of the most common uterine cancers worldwide. AKT is reported to regulate progesterone receptor B dependent transcription and angiogenesis in endometrial cancer. However, the potential mechanisms of AKT in the tumor progression of endometrial cancer remain unclear. Methods: We used GSE72708 with gene expression profiles of AKT regulation from the GEO database. We performed GSEA analysis to explore pathway enrichments. We found that most upregulated enriched pathways in siAKT group were associated with acid metabolism and immune network. Endometrial cancer and various signaling pathways were downregulated enriched. Moreover, different molecular mechanism of regulation between progestin (R5020) and AKT was identified, which were related to VEGF signaling pathway. The hub genes were evaluated by immunohistochemical staining of endometrial cancer tissues. Results: We screened out a total of 623 differentially expressed genes among different groups. According to weighted gene co-expression network analysis (WGCNA) method, four distinct modules were identified. We found brown module showed a very high positive correlation with siAKT group and a very high negative correlation with R5020 group. A total of six hub genes including PBK, BIRC5, AURKA, GTSE1, KNSTRN, and PSMB10 were finally identified associated with AKT1. In addition, the data also shows that the higher expression of AKT1, GTSE1, BIRC5, AURKA, and KNSTRN is significantly associate with poor prognosis of endometrial cancer. Conclusion: Our study identified six hub genes related to the prognosis of endometrial cancer, which may provide new insights into the underlying biological mechanisms driving the tumorigenesis of endometrial cancer, especially in AKT1 regulation.
Collapse
Affiliation(s)
- Xiao Huo
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Hengzi Sun
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.,Department of Obstetrics and Gynecology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Qian Liu
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xiangwen Ma
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Peng Peng
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Mei Yu
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Ying Zhang
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Dongyan Cao
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Keng Shen
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| |
Collapse
|
25
|
Sun H, Cao D, Ma X, Yang J, Peng P, Yu M, Zhou H, Zhang Y, Li L, Huo X, Shen K. Identification of a Prognostic Signature Associated With DNA Repair Genes in Ovarian Cancer. Front Genet 2019; 10:839. [PMID: 31572446 PMCID: PMC6751318 DOI: 10.3389/fgene.2019.00839] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Accepted: 08/13/2019] [Indexed: 12/22/2022] Open
Abstract
Introduction: Ovarian cancer is a highly malignant cancer with a poor prognosis. At present, there is no accurate strategy for predicting the prognosis of ovarian cancer. A prognosis prediction signature associated with DNA repair genes in ovarian cancer was explored in this study. Methods: Gene expression profiles of ovarian cancer were downloaded from the GEO, UCSC, and TCGA databases. Cluster analysis, univariate analysis, and stepwise regression were used to identify DNA repair genes as potential targets and a prognostic signature for ovarian cancer survival prediction. The top genes were evaluated by immunohistochemical staining of ovarian cancer tissues, and external data were used to assess the signature. Results: A total of 28 DNA repair genes were identified as being significantly associated with overall survival (OS) among patients with ovarian cancer. The results showed that high expression of XPC and RECQL and low expression of DMC1 were associated with poor prognosis in ovarian cancer patients. The prognostic signature combining 14 DNA repair genes was able to separate ovarian cancer samples associated with different OS times and showed robust performance for predicting survival (Training set: p < 0.0001, AUC = 0.759; Testing set: p < 0.0001, AUC = 0.76). Conclusion: Our study identified 28 DNA repair genes related to the prognosis of ovarian cancer. Using some of these potential biomarkers, we constructed a prognostic signature to effectively stratify ovarian cancer patients with different OS rates, which may also serve as a potential therapeutic target in ovarian cancer.
Collapse
Affiliation(s)
- Hengzi Sun
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Dongyan Cao
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xiangwen Ma
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jiaxin Yang
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Peng Peng
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Mei Yu
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Huimei Zhou
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Ying Zhang
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Lei Li
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xiao Huo
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Keng Shen
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| |
Collapse
|
26
|
Huo X, Yossifon G. Significant enhancement of the electrorheological effect by non-straight electrode geometry. Soft Matter 2019; 15:6455-6460. [PMID: 31286124 DOI: 10.1039/c9sm00819e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
In contrast to the commonly used straight electrodes with electrorheological (ER) fluid, here, we studied the effect of non-straight electrodes comprising the sides of a microchannel, on the ER fluid response. A more than one order of magnitude enhancement of the apparent viscosity was observed for non-straight electrode geometries, where castellated and sawtooth electrode geometries were used merely as an example, relative to that measured for straight electrodes. The enhancement increased with increasing applied voltage and exhibited a distinct maximum in the frequency range of 5-10 Hz. Experimental analyses demonstrated that positive dielectrophoresis-driven attraction of the chain ends to the sharp tips of the electrode underlies the ER enhancement. Hence, introducing such uniformity breakage of the electric field through non-straight electrode geometries is of practical importance for enhancement of the ER response.
Collapse
Affiliation(s)
- X Huo
- Faculty of Mechanical Engineering, Micro- and Nanofluidics Laboratory, Technion-Israel Institute of Technology, Technion City 32000, Israel.
| | - G Yossifon
- Faculty of Mechanical Engineering, Micro- and Nanofluidics Laboratory, Technion-Israel Institute of Technology, Technion City 32000, Israel.
| |
Collapse
|
27
|
Huo X, Sun H, Cao D, Yang J, Peng P, Yu M, Shen K. Identification of prognosis markers for endometrial cancer by integrated analysis of DNA methylation and RNA-Seq data. Sci Rep 2019; 9:9924. [PMID: 31289358 PMCID: PMC6617448 DOI: 10.1038/s41598-019-46195-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [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: 02/19/2019] [Accepted: 06/24/2019] [Indexed: 12/17/2022] Open
Abstract
Endometrial cancer is highly malignant and has a poor prognosis in the advanced stage, thus, prediction of its prognosis is important. DNA methylation has rapidly gained clinical attention as a biomarker for diagnostic, prognostic and predictive purposes in various cancers. In present study, differentially methylated positions and differentially expressed genes were identified according to DNA methylation and RNA-Seq data. Functional analyses and interaction network were performed to identify hub genes, and overall survival analysis of hub genes were validated. The top genes were evaluated by immunohistochemical staining of endometrial cancer tissues. The gene function was evaluated by cell growth curve after knockdown CDC20 and CCNA2 of endometrial cancer cell line. A total of 329 hypomethylated highly expressed genes and 359 hypermethylated lowly expressed genes were identified, and four hub genes were obtained according to the interaction network. Patients with low expression of CDC20 and CCNA2 showed better overall survival. The results also were demonstrated by the immunohistochemical staining. Cell growth curve also demonstrated that knockdown CDC20 and CCNA2 can suppress the cell proliferation. We have identified two aberrantly methylated genes, CDC20 and CCNA2 as novel biomarkers for precision diagnosis in EC.
Collapse
Affiliation(s)
- Xiao Huo
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Hengzi Sun
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Dongyan Cao
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jiaxin Yang
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Peng Peng
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Mei Yu
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Keng Shen
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
| |
Collapse
|
28
|
Abstract
Increasing e-waste has become a major problem for global environment and public health. In the process of dismantling and recycling of disordered electronic waste, heavy metals such as lead and brominated flame retardants and organic substances are released into environmental media such as air, soil, dust and water, which is harmful to the health of local residents. Taking an e-waste dismantling area in Guangdong Province as an example, this paper reviews exposure levels of heavy metals and organic matters in e-waste recycling areas in China, as well as the health effects of local residents. Previous studies have found that e-waste recycling activities led to serious environmental pollution and high exposure levels of heavy metals and organic matters in local residents, which has a certain impact on the physiological functions of various human systems. The establishment of a centralized dismantling zone can effectively reduce the load level of various pollutants.
Collapse
Affiliation(s)
- X Huo
- Laboratory of Environmental Medicine and Developmental Toxicology, Jinan University, Guangzhou 510632, China
| | - X B Zheng
- Laboratory of Environmental Medicine and Developmental Toxicolog, Shantou University Medical College, Shantou 515041, China
| | - Q Liu
- Department of Radiation Damage, Institute of Radiation Medicine, Chinese Academy of Medical Sciences, Tianjin 300192, China
| | - T Zhang
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510275, China
| | - Q H Wang
- Laboratory of Environmental Medicine and Developmental Toxicology, Jinan University, Guangzhou 510632, China
| | - X J Xu
- Laboratory of Environmental Medicine and Developmental Toxicolog, Shantou University Medical College, Shantou 515041, China
| |
Collapse
|
29
|
Liu DC, Xu XJ, Zheng XB, Jiang YS, Zhang JQ, Huo X. [The study of exposure levels of dioxin-like compounds in cord blood of newborns in an e-waste dismantling area in Guangdong Province]. Zhonghua Yu Fang Yi Xue Za Zhi 2019; 53:365-370. [PMID: 30982269 DOI: 10.3760/cma.j.issn.0253-9624.2019.04.007] [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] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Objective: To study the pollution status of polybrominated diphenyl ethers (PBDEs), polychlorinated biphenyls (PCB), polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) in cord blood of newborns in an e-waste dismantling area of Guangdong Province. Methods: We recruited 20 eligible mothers and newborns who could meet the inclusion criteria in local hospitals of Guiyu in 2007. The inclusion criteria included directly engaged in dismantling e-waste during pregnancy and within 1 year before pregnancy; living in the e-waste dismantling workshops or the distance between living place and the e-waste dismantling areas was ≤200 m; the father of newborn was directly engaged in electronic waste dismantling for more than 1 year; the frequency of visiting the e-waste dismantling workshop during pregnancy was ≥3 times in a week. Questionnaires and physical examinations were performed on maternal and neonatal, and cord blood was collected from newborns to detect PCDD/Fs, PCB and PBDE. The concentration level of organic pollutants was corrected by the blood lipid content, and the total toxicity equivalent was calculated. The correlation between three compounds was analyzed by Spearman correlation. Results: The mothers of the 20 newborns were (23.45±3.27) years old and lived for more than 5 years. The number of one parent engaged in e-waste dismantling, the mother or father smoking, and parent engaged in e-waste dismantling work were 3, 13, 15 and 19, respectively. The weight of newborns ranged from 2.5 to 3.6 kilogram and the Apgar score was 10 points. No adverse birth outcomes such as preterm birth, malformation or stillbirth were found. The median (maximum, minimum) concentration of PCBs, PCDD/Fs and PBDEs in cord blood were 263.22 (328.29, 244.19), 38.42 (147.49, 12.68), 39.33 (265.11, 14.81) pg/g lipid, respectively. The median (maximum, minimum) of toxic equivalence concentrations of PCDD/Fs and PCB were 3.94 (9.24, 2.69) and 15.95 (26.64, 9.28) pg TEQ/g lipid. PBDE, the proportion of PBDE, PCB and PCDD/Fs in cord blood was 50.41%, 49.25% and 0.34%, respectively. PCBs and PBDEs were positively correlated (r=0.733, P=0.039). Conclusion: The high concentrations of PCDD/Fs, PCB, and PBDE were detected in the e-waste dismantling area. It is recommended that the risk of such substances on the health of local people should be assessed in a timely manner.
Collapse
Affiliation(s)
- D C Liu
- Laboratory of Environmental Medicine and Developmental Toxicolog, Shantou University Medical College, Shantou 515041, China
| | - X J Xu
- Laboratory of Environmental Medicine and Developmental Toxicolog, Shantou University Medical College, Shantou 515041, China
| | - X B Zheng
- Laboratory of Environmental Medicine and Developmental Toxicolog, Shantou University Medical College, Shantou 515041, China
| | - Y S Jiang
- Persistent Organic Pollutants Research Laboratory, Shenzhen Municipal Center for Disease Control and Prevention, Shenzhen 518055, China
| | - J Q Zhang
- Persistent Organic Pollutants Research Laboratory, Shenzhen Municipal Center for Disease Control and Prevention, Shenzhen 518055, China
| | - X Huo
- Laboratory of Environmental Medicine and Developmental Toxicology, Jinan University, Guangzhou 510632, China
| |
Collapse
|
30
|
Zhao C, Hu S, Huo X, Zhang Y. Dr.seq2: A quality control and analysis pipeline for parallel single cell transcriptome and epigenome data. PLoS One 2017; 12:e0180583. [PMID: 28671995 PMCID: PMC5495495 DOI: 10.1371/journal.pone.0180583] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [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: 02/22/2017] [Accepted: 06/16/2017] [Indexed: 01/21/2023] Open
Abstract
An increasing number of single cell transcriptome and epigenome technologies, including single cell ATAC-seq (scATAC-seq), have been recently developed as powerful tools to analyze the features of many individual cells simultaneously. However, the methods and software were designed for one certain data type and only for single cell transcriptome data. A systematic approach for epigenome data and multiple types of transcriptome data is needed to control data quality and to perform cell-to-cell heterogeneity analysis on these ultra-high-dimensional transcriptome and epigenome datasets. Here we developed Dr.seq2, a Quality Control (QC) and analysis pipeline for multiple types of single cell transcriptome and epigenome data, including scATAC-seq and Drop-ChIP data. Application of this pipeline provides four groups of QC measurements and different analyses, including cell heterogeneity analysis. Dr.seq2 produced reliable results on published single cell transcriptome and epigenome datasets. Overall, Dr.seq2 is a systematic and comprehensive QC and analysis pipeline designed for parallel single cell transcriptome and epigenome data. Dr.seq2 is freely available at: http://www.tongji.edu.cn/~zhanglab/drseq2/ and https://github.com/ChengchenZhao/DrSeq2.
Collapse
Affiliation(s)
- Chengchen Zhao
- Translational Medical Center for Stem Cell Therapy & Institute for Regenerative Medicine, Shanghai East Hospital, School of Life Science and Technology, Shanghai Key Laboratory of Signaling and Disease Research, Tongji University, Shanghai, China
| | - Sheng’en Hu
- Translational Medical Center for Stem Cell Therapy & Institute for Regenerative Medicine, Shanghai East Hospital, School of Life Science and Technology, Shanghai Key Laboratory of Signaling and Disease Research, Tongji University, Shanghai, China
| | - Xiao Huo
- Translational Medical Center for Stem Cell Therapy & Institute for Regenerative Medicine, Shanghai East Hospital, School of Life Science and Technology, Shanghai Key Laboratory of Signaling and Disease Research, Tongji University, Shanghai, China
| | - Yong Zhang
- Translational Medical Center for Stem Cell Therapy & Institute for Regenerative Medicine, Shanghai East Hospital, School of Life Science and Technology, Shanghai Key Laboratory of Signaling and Disease Research, Tongji University, Shanghai, China
- * E-mail:
| |
Collapse
|
31
|
Zhou Y, Zhu Y, Fan X, Zhang C, Wang Y, Zhang L, Zhang H, Wen T, Zhang K, Huo X, Jiang X, Bu Y, Zhang Y. NID1, a new regulator of EMT required for metastasis and chemoresistance of ovarian cancer cells. Oncotarget 2017; 8:33110-33121. [PMID: 28416770 PMCID: PMC5464854 DOI: 10.18632/oncotarget.16145] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2017] [Accepted: 02/08/2017] [Indexed: 12/13/2022] Open
Abstract
Nidogen-1 (NID1) has been identified as a novel candidate diagnostic biomarker of ovarian cancer in our previous study. Nevertheless, the role of NID1 in the pathogenesis of ovarian cancer is unclear. In the present study, we demonstrated that NID1 was a mesenchymal associated gene and its high expression was significantly correlated with shorter overall survival of ovarian cancer patients. The ectopic expression of NID1 in OVCAR-3 cells revealed a epithelial-mesenchymal transition (EMT) phenotype accompanied by enhancement of motility, invasiveness and cisplatin resistance, whereas the knockdown of NID1 was sufficient to convert HEY cells into epithelial phenotype with decreased capability of motility, invasiveness and cisplatin resistance. Mechanistic studies disclosed that NID1 activated ERK/MAPK signaling pathway to promote EMT. Collectively, our findings have uncovered the molecular mechanisms of NID1 in promoting ovarian cancer metastasis and chemoresistance, and provide a rationale for the therapeutic potential of NID1 suppression in ovarian cancer.
Collapse
Affiliation(s)
- Ya Zhou
- Department of Biochemistry and Molecular Biology, Chongqing Medical University, Chongqing 400016, China
- Molecular Medicine and Cancer Research Center, Chongqing Medical University, Chongqing 400016, China
| | - Yuanyuan Zhu
- Department of Biochemistry and Molecular Biology, Chongqing Medical University, Chongqing 400016, China
- Molecular Medicine and Cancer Research Center, Chongqing Medical University, Chongqing 400016, China
| | - Xiaoyan Fan
- Department of Biochemistry and Molecular Biology, Chongqing Medical University, Chongqing 400016, China
- Molecular Medicine and Cancer Research Center, Chongqing Medical University, Chongqing 400016, China
| | - Chundong Zhang
- Department of Biochemistry and Molecular Biology, Chongqing Medical University, Chongqing 400016, China
- Molecular Medicine and Cancer Research Center, Chongqing Medical University, Chongqing 400016, China
| | - Yitao Wang
- Department of Biochemistry and Molecular Biology, Chongqing Medical University, Chongqing 400016, China
- Molecular Medicine and Cancer Research Center, Chongqing Medical University, Chongqing 400016, China
| | - Lian Zhang
- Department of Biochemistry and Molecular Biology, Chongqing Medical University, Chongqing 400016, China
- Molecular Medicine and Cancer Research Center, Chongqing Medical University, Chongqing 400016, China
| | - Huan Zhang
- College of Pharmacy, Chongqing Medical University, Chongqing 400016, China
| | - Tao Wen
- First Clinical College, Chongqing Medical University, Chongqing 400016, China
| | - Kaina Zhang
- College of Pharmacy, Chongqing Medical University, Chongqing 400016, China
| | - Xiao Huo
- College of Biomedical Engineering, Chongqing Medical University, Chongqing 400016, China
| | - Xue Jiang
- Department of Biochemistry and Molecular Biology, Chongqing Medical University, Chongqing 400016, China
- Molecular Medicine and Cancer Research Center, Chongqing Medical University, Chongqing 400016, China
| | - Youquan Bu
- Department of Biochemistry and Molecular Biology, Chongqing Medical University, Chongqing 400016, China
- Molecular Medicine and Cancer Research Center, Chongqing Medical University, Chongqing 400016, China
| | - Ying Zhang
- Department of Biochemistry and Molecular Biology, Chongqing Medical University, Chongqing 400016, China
- Molecular Medicine and Cancer Research Center, Chongqing Medical University, Chongqing 400016, China
| |
Collapse
|
32
|
Fan H, Fu YS, Shan J, Shi C, Zhang XF, Huo X, Bao CJ, Ji H. [Surveillance on the epidemiological and etiological characteristics of hand-foot-mouth disease during the outbreaks in three cities of Jiangsu province, 2012-2015]. Zhonghua Liu Xing Bing Xue Za Zhi 2016; 37:1608-1614. [PMID: 27998408 DOI: 10.3760/cma.j.issn.0254-6450.2016.12.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [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: To analyze the epidemiological and etiological characteristics through monitoring the outbreaks of hand-foot-mouth disease (HFMD), in three cities of Jiangsu province from 2012 to 2015 and to provide evidence for prevention and control of the disease. Methods: Data related to cases of HFMD during the outbreaks was collected through active surveillance programs in three cities of Jiangsu province, under the guidelines of clusters and outbreaks of HFMD (2012 edition HFMD). Features related to clusters and outbreaks of the disease were identified according to the real-time RT-PCR detection. Descriptive analysis was conducted to understand the type/subtype of HFMD virus and time, area, place and extent of the outbreaks. Logistic regression was used to explore the influencing factors. Results: From 2012 to 2015, a total of 1 425 HFMD epidemics, including 1 314 clusters and 111 outbreaks were reported. Two incidence peaks were observed each year, between March and June, as well as between September and December, accounting for 58.18% (829/1 425), 33.68% (480/1 425), respectively. Most HFMD clusters and outbreaks were reported in Wuxi city, accounting for 59.30% (845/1 425) of the total. Most HFMD clusters and outbreaks happened in kindergartens, accounting for 68.63% (978/1 425) of the total. A total of 931 HFMD clusters and outbreaks were confirmed under laboratory findings. The main pathogens were Entervirus type 71 (EV71) in 2013 and Coxsackie A16 (Cox A16) in 2015, respectively, while both EV71 and Cox A16 were predominant in 2012 and 2014. With multivariate backward conditional regression, surrounding environment was identified as important risk factor associated with the attack rate. Health condition of the environment was quite good, with low attack rates (middle vs. bad: OR=0.150, 95% CI: 0.034-0.667; good vs. bad: OR=0.072, 95%CI: 0.016-0.317). Time between the onset of index patient and the reporting of HFMD clusters or outbreaks was important in the control program of HFMD epidemics (4-7 d vs. 1-3 d: OR=3.452, 95%CI: 2.293-5.198; 8 d vs. 1-3 d: OR=12.108, 95%CI: 7.767-18.763). Conclusions: The clusters and outbreaks of HFMD happened in Jiangsu province showed an obvious feature of seasonality. The predominant types or subtypes of the virus varied in different years. Kindergartens were the hard-hit places of HFMD clusters and outbreaks. Timely report of the disease appeared the key point regarding the control of HFMD clusters and outbreaks.
Collapse
Affiliation(s)
- H Fan
- Department of Acute Infectious Disease Control and Prevention, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China
| | - Y S Fu
- School of Public Health, Wannan Medical College, Wuhu 241000, China
| | - J Shan
- Department of Acute Infectious Disease Control and Prevention, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China
| | - C Shi
- Wuxi Center for Disease Control and Prevention, Wuxi 214023, China
| | - X F Zhang
- Department of Acute Infectious Disease Control and Prevention, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China
| | - X Huo
- Department of Acute Infectious Disease Control and Prevention, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China
| | - C J Bao
- Department of Acute Infectious Disease Control and Prevention, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China
| | - H Ji
- Department of Acute Infectious Disease Control and Prevention, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China
| |
Collapse
|
33
|
Huo X, Zhang K, Yi L, Mo Y, Liang Y, Zhao J, Zhang Z, Xu Y, Zhen G. Decreased epithelial and plasma miR-181b-5p expression associates with airway eosinophilic inflammation in asthma. Clin Exp Allergy 2016; 46:1281-90. [PMID: 27192552 DOI: 10.1111/cea.12754] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2016] [Revised: 04/22/2016] [Accepted: 05/03/2016] [Indexed: 01/22/2023]
Abstract
BACKGROUND Airway eosinophilic inflammation is a pivotal feature of asthma. Epithelial cells play critical roles in airway eosinophilia. We hypothesized that epithelial microRNAs (miRNAs) are involved in airway eosinophilia. OBJECTIVE This study investigated the associations between epithelial and plasma miR-181b-5p and airway eosinophilic inflammation, and the possible mechanism by which miR-181b-5p participates in eosinophilic inflammation. METHODS Epithelial miRNAs expression was profiled by miRNA array in eight subjects with asthma and four healthy controls. Epithelial miR-181b-5p expression was confirmed by quantitative PCR in the subjects for array experiment and another cohort including 21 subjects with asthma and 10 controls. Plasma miR-181b-5p was determined by quantitative PCR in 72 subjects with asthma and 35 controls. Correlation assays between epithelial and plasma miR-181b-5p expression and airway eosinophilia were performed. The target of miR-181b-5p, SPP1, was predicted by online algorithms and verified in BEAS-2B cells. The role of miR-181b-5p in epithelial proinflammatory cytokine expression was examined in an in vitro system. RESULTS Epithelial miR-181b-5p expression was decreased in subjects with asthma. Epithelial miR-181b-5p levels were inversely correlated with sputum and bronchial submucosal eosinophilia. Plasma miR-181b-5p was decreased and correlated with epithelial miR-181b-5p in subjects with asthma. There was a strong inverse correlation between plasma miR-181b-5p and airway eosinophilia in subjects with asthma. Plasma miR-181b-5p was increased after inhaled corticosteroids treatment. We verified that SPP1 is a target of miR-181b-5p. In human bronchial epithelial cells, miR-181b-5p regulated IL-13-induced IL-1β and CCL11 expression by targeting SPP1. Dexamethasone restored IL-13-induced miR-181b-5p down-regulation and suppressed IL-13-induced SPP1, IL-1β and CCL11 expression. CONCLUSIONS AND CLINICAL RELEVANCE Epithelial and plasma miR-181b-5p are potential biomarkers for airway eosinophilia in asthma. MiR-181b-5p may participate in eosinophilic airway inflammation by regulating proinflammatory cytokines expression via targeting SPP1.
Collapse
Affiliation(s)
- X Huo
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Key Laboratory of Respiratory Diseases, National Health and Family Planning Commission of the People's Republic of China, Wuhan, China
| | - K Zhang
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Key Laboratory of Respiratory Diseases, National Health and Family Planning Commission of the People's Republic of China, Wuhan, China
| | - L Yi
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Key Laboratory of Respiratory Diseases, National Health and Family Planning Commission of the People's Republic of China, Wuhan, China
| | - Y Mo
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Key Laboratory of Respiratory Diseases, National Health and Family Planning Commission of the People's Republic of China, Wuhan, China
| | - Y Liang
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Key Laboratory of Respiratory Diseases, National Health and Family Planning Commission of the People's Republic of China, Wuhan, China
| | - J Zhao
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Key Laboratory of Respiratory Diseases, National Health and Family Planning Commission of the People's Republic of China, Wuhan, China
| | - Z Zhang
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Key Laboratory of Respiratory Diseases, National Health and Family Planning Commission of the People's Republic of China, Wuhan, China
| | - Y Xu
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Key Laboratory of Respiratory Diseases, National Health and Family Planning Commission of the People's Republic of China, Wuhan, China
| | - G Zhen
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Key Laboratory of Respiratory Diseases, National Health and Family Planning Commission of the People's Republic of China, Wuhan, China
| |
Collapse
|
34
|
Huo X, Hu S, Zhao C, Zhang Y. Dr.seq: a quality control and analysis pipeline for droplet sequencing. Bioinformatics 2016; 32:2221-3. [PMID: 27153611 DOI: 10.1093/bioinformatics/btw174] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Accepted: 03/25/2016] [Indexed: 01/07/2023] Open
Abstract
MOTIVATION Drop-seq has recently emerged as a powerful technology to analyze gene expression from thousands of individual cells simultaneously. Currently, Drop-seq technology requires refinement and quality control (QC) steps are critical for such data analysis. There is a strong need for a convenient and comprehensive approach to obtain dedicated QC and to determine the relationships between cells for ultra-high-dimensional datasets. RESULTS We developed Dr.seq, a QC and analysis pipeline for Drop-seq data. By applying this pipeline, Dr.seq provides four groups of QC measurements for given Drop-seq data, including reads level, bulk-cell level, individual-cell level and cell-clustering level QC. We assessed Dr.seq on simulated and published Drop-seq data. Both assessments exhibit reliable results. Overall, Dr.seq is a comprehensive QC and analysis pipeline designed for Drop-seq data that is easily extended to other droplet-based data types. AVAILABILITY AND IMPLEMENTATION Dr.seq is freely available at: http://www.tongji.edu.cn/∼zhanglab/drseq and https://bitbucket.org/tarela/drseq CONTACT yzhang@tongji.edu.cn SUPPLEMENTARY INFORMATION Supplementary data are available at Bioinformatics online.
Collapse
Affiliation(s)
- Xiao Huo
- School of Life Science and Technology, Shanghai Key Laboratory of Signaling and Disease Research, Tongji University, Shanghai 20092, China
| | - Sheng'en Hu
- School of Life Science and Technology, Shanghai Key Laboratory of Signaling and Disease Research, Tongji University, Shanghai 20092, China
| | - Chengchen Zhao
- School of Life Science and Technology, Shanghai Key Laboratory of Signaling and Disease Research, Tongji University, Shanghai 20092, China
| | - Yong Zhang
- School of Life Science and Technology, Shanghai Key Laboratory of Signaling and Disease Research, Tongji University, Shanghai 20092, China
| |
Collapse
|
35
|
Duan J, Huo X, Du W, Liang J, Wang D, Yang S. Biodegradation of kraft lignin by a newly isolated anaerobic bacterial strain, Acetoanaerobium
sp. WJDL-Y2. Lett Appl Microbiol 2015; 62:55-62. [DOI: 10.1111/lam.12508] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2015] [Revised: 09/21/2015] [Accepted: 10/05/2015] [Indexed: 11/30/2022]
Affiliation(s)
- J. Duan
- Department of Environmental Engineering; Xi'an Jiaotong University; Xi'an China
| | - X. Huo
- Department of Environmental Engineering; Xi'an Jiaotong University; Xi'an China
| | - W.J. Du
- Department of Environmental Engineering; Xi'an Jiaotong University; Xi'an China
| | - J.D. Liang
- Department of Environmental Engineering; Xi'an Jiaotong University; Xi'an China
- State Key Laboratory of Frozen Soil Engineering; Cold and Arid Regions Environmental and Engineering Research Institute; Chinese Academy of Science; Lanzhou China
| | - D.Q. Wang
- State Key Laboratory Base of Eco-Hydraulic Engineering in Arid Area; Xi'an University of Technology; Xi'an China
| | - S.C. Yang
- Department of Environmental Engineering; Xi'an Jiaotong University; Xi'an China
| |
Collapse
|
36
|
Zhang C, Zhang G, Rong W, Wang A, Wu C, Huo X. Corrigendum to “Early applied electric field stimulation attenuates secondary apoptotic responses and exerts neuroprotective effects in acute spinal cord injury of rats” [Neuroscience 291 (2015) 260–271]. Neuroscience 2015. [DOI: 10.1016/j.neuroscience.2015.04.042] [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: 10/23/2022]
|
37
|
Hu F, Deng X, Yang X, Jin H, Gu D, Lv X, Wang C, Zhang Y, Huo X, Shen Q, Luo Q, Zhao F, Ge T, Zhao F, Chu W, Shu H, Yao M, Fan J, Qin W. Hypoxia upregulates Rab11-family interacting protein 4 through HIF-1α to promote the metastasis of hepatocellular carcinoma. Oncogene 2015; 34:6007-17. [PMID: 25745995 DOI: 10.1038/onc.2015.49] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2014] [Revised: 12/23/2014] [Accepted: 01/14/2015] [Indexed: 12/21/2022]
Abstract
Hypoxic microenvironment is a powerful driving force for the invasion and metastasis of hepatocellular carcinoma (HCC). Hypoxia-inducible factor 1α (HIF-1α), as a crucial regulator of transcriptional responses to hypoxia, induces the expression of multiple target genes involved in different steps of HCC metastatic process. It is critical to find target genes associated with metastasis under hypoxia for shedding new light on molecular mechanism of HCC metastasis. In this study, we uncovered that hypoxia could induce the upregulation of Rab11-family interacting protein 4 (Rab11-FIP4) and activation of Rab11-FIP4 promoter by HIF-1α. The overexpression of Rab11-FIP4 significantly enhanced the mobility and invasiveness of HCC cells in vitro, also contributed to distant lung metastasis in vivo, whereas silencing of Rab11-FIP4 decreased the ability of migration and invasion in HCC cells in vitro and suppressed lung metastasis in vivo. Rab11-FIP4 facilitated HCC metastasis through the phosphorylation of PRAS40, which was regulated by mTOR. Furthermore, the expression level of Rab11-FIP4 was significantly increased in HCC tissues and high expression of Rab11-FIP4 was closely correlated with vascular invasion and poor prognosis in HCC patients. A markedly positive correlation between the expression of Rab11-FIP4 and HIF-1α was observed in HCC tissues and combination of Rab11-FIP4 and HIF-1α was a more valuable predictor of poor prognosis for HCC patients. In conclusion, Rab11-FIP4 is a target gene of HIF-1α and has a pro-metastatic role in HCC, suggesting that Rab11-FIP4 may be a promising candidate target for HCC treatment.
Collapse
Affiliation(s)
- F Hu
- Shanghai Medical College of Fudan University, Shanghai, China.,State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - X Deng
- Shanghai Medical College of Fudan University, Shanghai, China.,State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - X Yang
- Key Laboratory for Carcinogenesis and Cancer Invasion, The Chinese Ministry of Education, Liver Cancer Institute, Zhongshan Hospital and Shanghai Medical College, Fudan University, Shanghai, China
| | - H Jin
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - D Gu
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Department of Pathophysiology, Guangdong Medical College, Dongguan, China
| | - X Lv
- Basic Medical Research Centre, Medical College of Nantong University, Nantong, China
| | - C Wang
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Y Zhang
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - X Huo
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Q Shen
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Q Luo
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - F Zhao
- Basic Medical Research Centre, Medical College of Nantong University, Nantong, China
| | - T Ge
- Shanghai Medical College of Fudan University, Shanghai, China.,State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - F Zhao
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - W Chu
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - H Shu
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - M Yao
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - J Fan
- Key Laboratory for Carcinogenesis and Cancer Invasion, The Chinese Ministry of Education, Liver Cancer Institute, Zhongshan Hospital and Shanghai Medical College, Fudan University, Shanghai, China
| | - W Qin
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| |
Collapse
|
38
|
Xie L, Lin L, Tang Q, Li W, Huang T, Huo X, Liu X, Jiang J, He G, Ma L. Sertoli cell-mediated differentiation of male germ cell-like cells from human umbilical cord Wharton's jelly-derived mesenchymal stem cells in an in vitro co-culture system. Eur J Med Res 2015; 20:9. [PMID: 25644284 PMCID: PMC4389972 DOI: 10.1186/s40001-014-0080-6] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2014] [Accepted: 12/23/2014] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Microenvironment signals play a critical role in directing the differentiation of stem cells. Sertoli cells (SCs) provide a unique microenvironment that is essential for germ cell differentiation. METHODS Our previous study has demonstrated that human umbilical cord Wharton's jelly-derived mesenchymal stem cells (HUMSCs) could differentiate towards male germ cells in vitro, but HUMSC-derived germ-like cells expressed only few germ cell markers. The aim of this study was to investigate the effect of SCs on the differentiation of HUMSCs towards male germ cells using a co-culture system that mimicked the in vivo male germ cell microenvironment. RESULTS HUMSCs formed clump-like features on SC monolayers after seeding for 3 weeks. Differentiated cells formed round colonies that share the morphological features of spermatogonial colonies. RT-PCR, immunofluorescence, confocal microscopy, and Western blot analyses revealed the expression of early germ cell markers STELLA and VASA and male germ cell-specific marker DAZL in differentiated HUMSCs, confirming the presence of cells with characteristics of male germ cells. CONCLUSION The HUMSC-SC co-culture system mimics a native microenvironment for germ cell colonization without any in vitro artificial manipulation and can be used to explore the mechanisms controlling the differentiation of male germ cells from HUMSCs. Male germ cells derived from HUMSCs may be used in the therapy for male infertility.
Collapse
Affiliation(s)
- Lichun Xie
- Women's and Children's Hospital of Shenzhen University, Shenzhen, 518000, China.
- Department of Pediatrics, Second Affiliated Hospital of Shantou University Medical College, Shantou, 515041, China.
| | - Limin Lin
- Department of Pediatrics, Second Affiliated Hospital of Shantou University Medical College, Shantou, 515041, China.
| | - Qiuliu Tang
- Department of Pediatrics, Second Affiliated Hospital of Shantou University Medical College, Shantou, 515041, China.
| | - Weizhong Li
- Department of Pediatrics, Second Affiliated Hospital of Shantou University Medical College, Shantou, 515041, China.
| | - Tianhua Huang
- Shantou University Medical College, Shantou, 515041, China.
| | - Xiao Huo
- Shantou University Medical College, Shantou, 515041, China.
| | - Xiaoshan Liu
- Shantou University Medical College, Shantou, 515041, China.
| | - Jikai Jiang
- Shantou University Medical College, Shantou, 515041, China.
| | - Guyu He
- Department of Pediatrics, Second Affiliated Hospital of Shantou University Medical College, Shantou, 515041, China.
| | - Lian Ma
- Women's and Children's Hospital of Shenzhen University, Shenzhen, 518000, China.
- Department of Pediatrics, Second Affiliated Hospital of Shantou University Medical College, Shantou, 515041, China.
- Maternal and Child Health Care Center of Pingshan District, Shenzhen, 518000, China.
- Translational Medicine Center, Second Affiliated Hospital of Shantou University Medical College, Shantou, 515041, China.
| |
Collapse
|
39
|
Abstract
The effects of the FUS1 gene on the oesophageal carcinoma cell line EC109 are investigated. The messenger RNA (mRNA) expression level of the FUS1 gene was detected by a reverse transcription polymerase chain reaction (RT-PCR) technique in the cell lines SHEE, SHEEC and EC109. The full length of the FUS1 gene was amplified using a PCR technique from the total RNA of umbilical mesenchymal stem cells. The FUS1 gene was cloned into a pSL6-IRES-EGFP vector and identified by PCR, digestion and sequencing. The recombinant pSL6-FUS1-IRES-EGFP plasmid was transfected into 293FT cells and the resulting lentivirus was collected. The growth of EC109 cells after transfection with lentivirus containing the FUS1 gene was determined by MTT assay and plate colony formation. Expression of the FUS1 gene in EC109 cells was weaker than that in SHEE, SHEEC cells and human umbilical vein endothelial cells (HUVEE; used as a control). Transfection efficiency was more than 80% after 48 h. Cell growth assessed by MTT assay was inhibited by about 40% compared with the control group; a finding that was in accordance with the plate colony formation results. The results suggest that the FUS1 gene might be a candidate tumour suppressor gene for the treatment of oesophageal carcinoma; however, these results require confirmation in in vivo studies.
Collapse
Affiliation(s)
- B Zhang
- School of Public Health and Tropical Medicine, Southern Medical University, Guangzhou 510515, PR China.
| | | | | | | | | | | |
Collapse
|
40
|
Huo X. Collection and analysis of parameters drawn from cardiovascular system in hypertensive patients during sexual activity. Heart 2011. [DOI: 10.1136/heartjnl-2011-300867.579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
|
41
|
Xu J, Li CX, Lv JY, Li YS, Xiao Y, Shao TT, Huo X, Li X, Zou Y, Han QL, Li X, Wang LH, Ren H. Prioritizing candidate disease miRNAs by topological features in the miRNA target-dysregulated network: case study of prostate cancer. Mol Cancer Ther 2011; 10:1857-66. [PMID: 21768329 DOI: 10.1158/1535-7163.mct-11-0055] [Citation(s) in RCA: 168] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Recently, microRNAs (miRNA), small noncoding RNAs, have taken center stage in the field of human molecular oncology. However, their roles in tumor biology remain largely unknown. According to the assumption that miRNAs implicated in a specific tumor phenotype will show aberrant regulation of their target genes, we introduce an approach based on the miRNA target-dysregulated network (MTDN) to prioritize novel disease miRNAs. Target genes have predicted binding sites for any miRNA. The MTDN is constructed by combining computational target prediction with miRNA and mRNA expression profiles in tumor and nontumor tissues. Application of the proposed method to prostate cancer reveals that known prostate cancer miRNAs are characterized by a greater number of dysregulations and coregulators and the tendency to coregulate with each other and that they share a higher proportion of targets with other prostate cancer miRNAs. Support vector machine classifier, based on these features and changes in miRNA expression, is constructed and gives an average overall prediction accuracy of 0.8872 in cross-validation tests. The classifier is then applied to miRNAs in the MTDN. Functions enriched by dysregulated targets of novel predicted miRNAs are closely associated with oncogenesis. In addition, predicted cancer miRNAs within families or from different families show combinatorial dysregulation of target genes, as revealed by analysis of the MTDN modular organization. Finally, 3 miRNA target regulations are verified to hold in prostate cancer cells by transfection assays. These results show that the network-centric method could prioritize novel disease miRNAs and model how oncogenic lesions are mediated by miRNAs, providing important insights into tumorigenesis.
Collapse
Affiliation(s)
- Juan Xu
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin 150081, China
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
42
|
Huo X, Ren L, Shang L, Wang X, Wang J. Effect of WT1 antisense mRNA on the induction of apoptosis in ovarian carcinoma SKOV3 cells. EUR J GYNAECOL ONCOL 2011; 32:651-656. [PMID: 22335028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
PURPOSE To study the effect of WT1 antisense oligodeoxynucleotide (ASODN) transfection on the proliferation and apoptosis of SKOV3 cells. METHODS There were four groups in our study: normal control group, WT1 ASODN group, WT1 SODN group and lipofectamine group. Cell apoptosis was observed by flow cytometry. The effect of WT1 ASODN on cell proliferation was assayed by the MTT method. RT-PCR and Western blot were used to detect the expression level of WT1 mRNA and protein. RESULTS The growth of the ovarian cancer cell line SKOV3 became significantly slower and its activity was reduced after being transfected by WT1 ASODN, with the inhibition rate of 49.48%. WT1 antisense phosphorothioate oligonucleotides did not only inhibit cell proliferation, arrest cell cycle at G0-G1 checkpoint and induce apoptosis in SKOV3 ovarian carcinoma cells, but also downregulated WT1 mRNA and protein expression, which contributed to the apoptosis (p < 0.05). CONCLUSION WT1 antisense phosphorothioate oligonucleotides could both inhibit the proliferation and induce the apoptosis in SKOV3 ovarin carcinoma cell lines. Antisense oligonucleotides of WT1 may potentially help with the gene therapy of ovarian carcinoma.
Collapse
Affiliation(s)
- X Huo
- Department of Obstetrics and Gynecology, Beijing General Hospital of Beijing Military Command, Beijing China
| | | | | | | | | |
Collapse
|
43
|
Abstract
Musclin is a muscle-derived secretory peptide that induces insulin resistance in vitro We studied the effect of musclin (0.5 μg/ml) on insulin-stimulated glucose uptake in rat skeletal muscles and also the effect of rosiglitazone (0.4 μg/ml). Pre-incubation of muscles with musclin resulted in decreased insulin-stimulated glucose uptake. Musclin also reduced expression of peroxisome proliferator-activated receptor γ (PPARγ) and liver X receptor α (LXRα) mRNAs, although expression of glucose transporter 4 mRNA was unaltered. Rosiglitazone attenuated the effects of musclin on glucose uptake and PPARγ and LXRα mRNA expression. Western blotting demonstrated that activation of protein kinase B (Akt/PKB) in the insulin-signalling cascade was decreased by musclin but corrected by rosiglitazone. These findings suggest that musclin-induced impairment of insulin-stimulated glucose uptake in skeletal muscle is related to Akt/PKB inhibition and might be modulated by PPARγ/LXRα.
Collapse
Affiliation(s)
- Y Liu
- Department of Endocrinology, China Medical University, Shenyang, Liaoning, China
| | - X Huo
- Department of General Surgery 3, China Medical University, Shenyang, Liaoning, China
| | - XF Pang
- Department of Cardiology, The First Hospital, China Medical University, Shenyang, Liaoning, China
| | - ZH Zong
- Department of Biochemistry and Molecular Biology, China Medical University, Shenyang, Liaoning, China
| | - X Meng
- Department of Endocrinology, China Medical University, Shenyang, Liaoning, China
| | - GL Liu
- Department of Endocrinology, China Medical University, Shenyang, Liaoning, China
| |
Collapse
|
44
|
Abstract
Two recent association mapping studies in Parkinson disease (PD) reported three candidate genes for the PARK10 locus: EIF2B3 as a modifier of age-at-onset of PD (min P= 0.0004) and HIVEP3 as a PD risk gene (P < or = 0.006) (Oliveira et al. 2005); and LOC200008 (CDCP2) identified by the whole genome association (WGA) study of PD of Maraganore et al. (2005). However, evaluation of the on-line PD WGA results revealed two significant SNPs in HIVEP3 in the two datasets, Tier 1 and Tier 2, used by Maraganore et al. (P < or = 0.008 for Tier 1 and P=0.03 for Tier 2 dataset). Here, we revisited both the HIVEP3 and CDCP2 loci by examining 47 SNPs, mostly tagging, in an expanded PD family dataset (293 multiplex and 467 singleton families). A discordant sibpair (DSP) dataset (one DSP per family), with similar data structure as the WGA Tier 1 dataset, was also tested. We confirmed our and other previous negative findings for CDCP2. However, five significant SNPs in HIVEP3 (min P=0.004) were observed, although the two significant HIVEP3 SNPs from the PD WGA study were not significant in our datasets. Even though the sets of significant HIVEP3 markers differ between studies, these findings strongly support HIVEP3 as a candidate for PARK10. Further testing of HIVEP3 by other groups is encouraged.
Collapse
Affiliation(s)
- Y J Li
- Department of Medicine and Center for Human Genetics, Duke University Medical Center, Durham, NC 27710, USA.
| | | | | | | | | | | |
Collapse
|
45
|
Qi ZL, Huo X, Xu XJ, Zhang B, Du MG, Yang HW, Zheng LK, Li J, Shen ZY. Relationship between HPV16/18 E6 and 53, 21WAF1, MDM2, Ki67 and cyclin D1 expression in esophageal squamous cell carcinoma: comparative study by using tissue microarray technology. Exp Oncol 2006; 28:235-40. [PMID: 17080019 DOI: pmid/17080019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
AIM To investigate the role of human papillomavirus (HPV) HPV16/18 E6 oncogene in the carcinogenesis of esophageal cell carcinoma (ESCC). MATERIALS AND METHODS Tissue microarray (TMA) block was constructed from 60 cases of paraffin-embedded ESCC tissues and pair-matched controls (adjacent normal epithelium). Immunohistochemistry (IHC) methods were applied to detect the expression of HPV16/18 E6, p53, p21(WAF1), MDM2, Ki67 and cyclin D1 proteins on TMA slides. In situ hybridization (ISH) targeting HPV gene was also used. RESULTS In ESCC samples, 18.3% (11/60) were revealed HPV16/18 E6 positive by IHC, while 40.0% (24/60) HPV positive by ISH; HPV16/18 E6 expression was significantly higher than that of control samples. In ESCC samples, the expressions of p53, p21(WAF1), Cyclin D1, MDM2 and Ki67 were recorded in 60.0% (36/60), 40.0% (24/60), 51.7% (31/60), 65.0% (39/60) and 88.3% (53/60) cases respectively, In ESCC samples, p53, MDM2 and Ki67 expression correlated with the HPV16/18 E6 expression (p less, similar 0.01), p21(WAF1) expression - with these of MDM2 and cyclin D1 (p less, similar 0.01) whilst expression of Ki67 - with ESCC grade (p less, similar 0.01). CONCLUSION HPV might be one of etiological factor of esophageal carcinoma in Shantou, China. p53, MDM2 proteins may play important roles in the pathogenesis of HPV-associated ESCC.
Collapse
Affiliation(s)
- Z L Qi
- Laboratory Center and the Key Immunopathology Laboratory of Guangdong Province, Shantou University Medical College, Shantou, 515041, PR China.
| | | | | | | | | | | | | | | | | |
Collapse
|
46
|
Zhang B, Huo X, Xu X, Qi Z, Yang H, Peng L, Qiu B, Zheng L. Extraction of DNA from paraffin sections with proteinase K and DNAzol. Br J Biomed Sci 2006; 63:88-9. [PMID: 16872003 DOI: 10.1080/09674845.2006.11978089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- B Zhang
- Confocal Laboratory, Shantou University Medical College, Shantou, P. R. China
| | | | | | | | | | | | | | | |
Collapse
|
47
|
Tian X, Yuan L, Huo X, Han X, Li Y, Xu M, Lu M, Dai J, Dong L. Ultrastructural observation on the transformation of the spermatozoon in spermatogenesis of Taeniid cestodes. Zhongguo Ji Sheng Chong Xue Yu Ji Sheng Chong Bing Za Zhi 2002; 16:269-73. [PMID: 12078256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
Abstract
AIM To study the transformation of taeniid spermatozoon during spermatogenesis on the ultrastructure level. METHODS Transmission electronmicroscopy. RESULTS This paper was the second part of the ultrastructural observations on the spermatogenesis in Taeniid cestodes: The transformation of the spermatozoon. The 64-spermatid-plasmodium was generated from the secondary meiosis of the 32 rose-like secondary spermatocytes. The transformation of the spermatozoon was a complex process. Firstly, both the cytoplasm and nucleus of the spermatid elongated while the cytoplasm increased and connected to the cytoplasmic mass (cytophore). Secondly, the chromatins of nucleus polymerized to a thread-bundle-like structure. Finally, it detached from the cytoplasm mass and became a mature spermatozoon. The mature spermatozoon was a thread-like structure, about 16.2-18.6 microns in length and 0.35-0.45 micron in diameter. There were two structurally distinct parts: the part with the nucleus was the head and the part without the nucleus was the tail. The head measured about 5-6 microns in length, 1/3 of the total body length and contained an elongated nucleus which twined around the axoneme without mitochondria. The tail was about 11.2-16.6 microns in length. Throughout the core of the tail was an axoneme with typical "9 + 1" structure. The anterior of the tail, just behind the head, were some mitochondria, about 1.6-1.7 microns in total length which twined around the axoneme. The posterior of the tail contained only an axoneme. In cross-section of the spermatozoon, about 46 microtubules were beneath the plasma membrane. CONCLUSION The transformation of the spermatozoon is a very complex process.
Collapse
Affiliation(s)
- X Tian
- Department of Parasitology, North China Coal Medical College, Tangshan 063000
| | | | | | | | | | | | | | | | | |
Collapse
|
48
|
van den Akker F, Zhang X, Miyagi M, Huo X, Misono KS, Yee VC. Structure of the dimerized hormone-binding domain of a guanylyl-cyclase-coupled receptor. Nature 2000; 406:101-4. [PMID: 10894551 DOI: 10.1038/35017602] [Citation(s) in RCA: 131] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
The atrial natriuretic peptide (ANP) hormone is secreted by the heart in response to an increase in blood pressure. ANP exhibits several potent anti-hypertensive actions in the kidney, adrenal gland and vascular system. These actions are induced by hormone binding extracellularly to the ANP receptor, thereby activating its intracellular guanylyl cyclase domain for the production of cyclic GMP. Here we present the crystal structure of the glycosylated dimerized hormone-binding domain of the ANP receptor at 2.0-A resolution. The monomer comprises two interconnected subdomains, each encompassing a central beta-sheet flanked by alpha-helices, and exhibits the type I periplasmic binding protein fold. Dimerization is mediated by the juxtaposition of four parallel helices, arranged two by two, which brings the two protruding carboxy termini into close relative proximity. From affinity labelling and mutagenesis studies, the ANP-binding site maps to the side of the dimer crevice and extends to near the dimer interface. A conserved chloride-binding site is located in the membrane distal domain, and we found that hormone binding is chloride dependent. These studies suggest mechanisms for hormone activation and the allostery of the ANP receptor.
Collapse
Affiliation(s)
- F van den Akker
- Department of Molecular Biology, Lerner Research Institute, Cleveland Clinic Foundation, Ohio 44195, USA
| | | | | | | | | | | |
Collapse
|
49
|
Huo X, Abe T, Misono KS. Ligand binding-dependent limited proteolysis of the atrial natriuretic peptide receptor: juxtamembrane hinge structure essential for transmembrane signal transduction. Biochemistry 1999; 38:16941-51. [PMID: 10606529 DOI: 10.1021/bi9919448] [Citation(s) in RCA: 48] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The atrial natriuretic peptide (ANP) receptor is a 130-kDa transmembrane protein containing an extracellular ANP-binding domain, a single transmembrane sequence, an intracellular kinase-homologous domain, and a guanylate cyclase (GCase) domain. We observed that the receptor, when bound with ANP, was rapidly cleaved by endogenous or exogenously added protease to yield a 65-kDa ANP-binding fragment. No cleavage occurred without bound ANP. This ligand-induced cleavage abolished GCase activation by ANP. Cleavage occurred in an extracellular, juxtamembrane region containing six closely spaced Pro residues and a disulfide bond. Such structural features are shared among the A-type and B-type ANP receptors but not by ANP clearance receptors. The potential role of the hinge structure was examined by mutagenesis experiments. Mutation of Pro(417), but not other Pro residues, to Ala abolished GCase activation by ANP. Elimination of the disulfide bond by Cys to Ser mutations yielded a constitutively active receptor. Pro(417), and Cys(423) and Cys(432) forming the disulfide bond are strictly conserved among GCase-coupled receptors, while other residues are largely variable. The conserved Pro(417) and the disulfide bond may represent a consensus signaling motif in the juxtamembrane hinge structure that undergoes a marked conformational change upon ligand binding and apparently mediates transmembrane signal transduction.
Collapse
Affiliation(s)
- X Huo
- Department of Molecular Cardiology, Lerner Research Institute, The Cleveland Clinic Foundation, Ohio 44195, USA
| | | | | |
Collapse
|
50
|
Huo X. [Determination of thebaine in various tissues of papaver bracteatum by gas chromatography]. Se Pu 1999; 17:70-2. [PMID: 12548835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/28/2023] Open
Abstract
Papaver bracteatum is an important source of opiates because of its high thebaine content. An efficient and convenient method of determining thebaine, not only in the root, but in the more highly pigmented capsule, stem and leaf, is urgently required. We decided to examine these in detail on a wide variety of plant material and to choose an assay method which is convenient and gives reproducible results. A simple method for the quantitative extraction and analysis of thebaine in the different tissues (capsule, root, leaf and stem) of papaver bracteatum has been established. The powdered materials were extracted with methanol under ultrasonic condition. The procedure of extraction is simple, rapid and reliable. The assay method gave satisfactory reproducibility for a wide range of plant materials (coefficient of variation 2.9% to 5.4%). The linear range of response of thebaine was from 5.0 to 500.0 mg/L. The minimum limit of detection was 2 ng. The operating time of the assay is about 20 min. The presence of other alkaloids did not interfere with the assay reported here in.
Collapse
Affiliation(s)
- X Huo
- Institute of Pharmacology and Toxicology, Academy of Military Medical Sciences, Beijing, 100850
| |
Collapse
|