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Feng GC, Liu Z, Li HQ, Zuo DH, Sun HL, Qiao LX, Yin DT. [Clinical diagnosis and treatment analysis of 21 cases of intrathyroid thymic carcinoma]. Zhonghua Yi Xue Za Zhi 2024; 104:440-444. [PMID: 38326056 DOI: 10.3760/cma.j.cn112137-20231008-00676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 02/09/2024]
Abstract
Objective: To analyze the clinical efficacy of intrathyroid thymic carcinoma (ITTC). Methods: This study retrospectively analyzed the clinical data of 21 patients with ITTC diagnosed and treated at the First Affiliated Hospital of Zhengzhou University from January 2018 to July 2023, including 9 males and 12 females, with a median age of 52 years (40-60 years old). Results: There is a correlation between the maximum diameter of the tumor (≥40 mm) and lymph node metastasis (P=0.044). Seventeen patients received surgical treatment, and 4 patients only received chemotherapy. During the follow-up period, a total of 4 patients experienced death or progression, with a 2-year mortality or progression free survival rate of 74.8%. Conclusions: The prognosis of ITTC is good, and surgical treatment is the preferred treatment option, lymph node metastasis is significantly correlated with prognosis. The radiotherapy and chemotherapy of ITTC need to be determined based on the patient's condition.
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Affiliation(s)
- G C Feng
- Department of Thyroid Surgery, the First Affiliated Hospital of Zhengzhou University, Engineering Research Center of Multidisciplinary Diagnosis and Treatment of Thyroid Cancer of Henan Province, Key Medicine Laboratory of Thyroid Cancer of Henan Province, Zhengzhou 450052, China
| | - Z Liu
- Department of Thyroid Surgery, the First Affiliated Hospital of Zhengzhou University, Engineering Research Center of Multidisciplinary Diagnosis and Treatment of Thyroid Cancer of Henan Province, Key Medicine Laboratory of Thyroid Cancer of Henan Province, Zhengzhou 450052, China
| | - H Q Li
- Department of Thyroid Surgery, the First Affiliated Hospital of Zhengzhou University, Engineering Research Center of Multidisciplinary Diagnosis and Treatment of Thyroid Cancer of Henan Province, Key Medicine Laboratory of Thyroid Cancer of Henan Province, Zhengzhou 450052, China
| | - D H Zuo
- Department of Thyroid Surgery, the First Affiliated Hospital of Zhengzhou University, Engineering Research Center of Multidisciplinary Diagnosis and Treatment of Thyroid Cancer of Henan Province, Key Medicine Laboratory of Thyroid Cancer of Henan Province, Zhengzhou 450052, China
| | - H L Sun
- Department of Thyroid Surgery, the First Affiliated Hospital of Zhengzhou University, Engineering Research Center of Multidisciplinary Diagnosis and Treatment of Thyroid Cancer of Henan Province, Key Medicine Laboratory of Thyroid Cancer of Henan Province, Zhengzhou 450052, China
| | - L X Qiao
- Department of Thyroid Surgery, the First Affiliated Hospital of Zhengzhou University, Engineering Research Center of Multidisciplinary Diagnosis and Treatment of Thyroid Cancer of Henan Province, Key Medicine Laboratory of Thyroid Cancer of Henan Province, Zhengzhou 450052, China
| | - D T Yin
- Department of Thyroid Surgery, the First Affiliated Hospital of Zhengzhou University, Engineering Research Center of Multidisciplinary Diagnosis and Treatment of Thyroid Cancer of Henan Province, Key Medicine Laboratory of Thyroid Cancer of Henan Province, Zhengzhou 450052, China
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2
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Zhang LS, Ye C, Ju CW, Gao B, Feng X, Sun HL, Wei J, Yang F, Dai Q, He C. BID-seq for transcriptome-wide quantitative sequencing of mRNA pseudouridine at base resolution. Nat Protoc 2024; 19:517-538. [PMID: 37968414 PMCID: PMC11007761 DOI: 10.1038/s41596-023-00917-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Accepted: 09/25/2023] [Indexed: 11/17/2023]
Abstract
Pseudouridine (Ψ) is an abundant RNA modification that is present in and affects the functions of diverse non-coding RNA species, including rRNA, tRNA and small nuclear RNA. Ψ also exists in mammalian mRNA and probably exhibits functional roles; however, functional investigations of mRNA Ψ modifications in mammals have been hampered by the lack of a quantitative method that detects Ψ at base precision. We have recently developed bisulfite-induced deletion sequencing (BID-seq), which provides the community with a quantitative method to map RNA Ψ distribution transcriptome-wide at single-base resolution. Here, we describe an optimized BID-seq protocol for mapping Ψ distribution across cellular mRNAs, which includes fast steps in both library preparation and data analysis. This protocol generates highly reproducible results by inducing high deletion ratios at Ψ modification within diverse sequence contexts, and meanwhile displayed almost zero background deletions at unmodified uridines. When used for transcriptome-wide Ψ profiling in mouse embryonic stem cells, the current protocol uncovered 8,407 Ψ sites from as little as 10 ng of polyA+ RNA input. This optimized BID-seq workflow takes 5 days to complete and includes four main sections: RNA preparation, library construction, next-generation sequencing (NGS) and data analysis. Library construction can be completed by researchers who have basic knowledge and skills in molecular biology and genetics. In addition to the experimental protocol, we provide BID-pipe ( https://github.com/y9c/pseudoU-BIDseq ), a user-friendly data analysis pipeline for Ψ site detection and modification stoichiometry quantification, requiring only basic bioinformatic and computational skills to uncover Ψ signatures from BID-seq data.
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Affiliation(s)
- Li-Sheng Zhang
- Department of Chemistry, The University of Chicago, Chicago, IL, USA
- Howard Hughes Medical Institute, The University of Chicago, Chicago, IL, USA
- Division of Life Science, The Hong Kong University of Science and Technology, Hong Kong SAR, China
- Department of Chemistry, The Hong Kong University of Science and Technology, Hong Kong SAR, China
| | - Chang Ye
- Department of Chemistry, The University of Chicago, Chicago, IL, USA
- Howard Hughes Medical Institute, The University of Chicago, Chicago, IL, USA
| | - Cheng-Wei Ju
- Howard Hughes Medical Institute, The University of Chicago, Chicago, IL, USA
- Pritzker School of Molecular Engineering, The University of Chicago, Chicago, IL, USA
| | - Boyang Gao
- Department of Chemistry, The University of Chicago, Chicago, IL, USA
- Howard Hughes Medical Institute, The University of Chicago, Chicago, IL, USA
| | - Xinran Feng
- Howard Hughes Medical Institute, The University of Chicago, Chicago, IL, USA
- Department of Human Genetics, The University of Chicago, Chicago, IL, USA
| | - Hui-Lung Sun
- Department of Chemistry, The University of Chicago, Chicago, IL, USA
- Howard Hughes Medical Institute, The University of Chicago, Chicago, IL, USA
| | - Jiangbo Wei
- Department of Chemistry, The University of Chicago, Chicago, IL, USA
- Howard Hughes Medical Institute, The University of Chicago, Chicago, IL, USA
| | - Fan Yang
- Department of Chemistry, The University of Chicago, Chicago, IL, USA
- Howard Hughes Medical Institute, The University of Chicago, Chicago, IL, USA
| | - Qing Dai
- Department of Chemistry, The University of Chicago, Chicago, IL, USA.
- Howard Hughes Medical Institute, The University of Chicago, Chicago, IL, USA.
| | - Chuan He
- Department of Chemistry, The University of Chicago, Chicago, IL, USA.
- Howard Hughes Medical Institute, The University of Chicago, Chicago, IL, USA.
- Department of Biochemistry and Molecular Biology, The University of Chicago, Chicago, IL, USA.
- Institute for Biophysical Dynamics, The University of Chicago, Chicago, IL, USA.
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3
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Dai Q, Ye C, Irkliyenko I, Wang Y, Sun HL, Gao Y, Liu Y, Beadell A, Perea J, Goel A, He C. Ultrafast bisulfite sequencing detection of 5-methylcytosine in DNA and RNA. Nat Biotechnol 2024:10.1038/s41587-023-02034-w. [PMID: 38168991 DOI: 10.1038/s41587-023-02034-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Accepted: 10/13/2023] [Indexed: 01/05/2024]
Abstract
Bisulfite sequencing (BS-seq) to detect 5-methylcytosine (5mC) is limited by lengthy reaction times, severe DNA damage, overestimation of 5mC level and incomplete C-to-U conversion of certain DNA sequences. We present ultrafast BS-seq (UBS-seq), which uses highly concentrated bisulfite reagents and high reaction temperatures to accelerate the bisulfite reaction by ~13-fold, resulting in reduced DNA damage and lower background noise. UBS-seq allows library construction from small amounts of purified genomic DNA, such as from cell-free DNA or directly from 1 to 100 mouse embryonic stem cells, with less overestimation of 5mC level and higher genome coverage than conventional BS-seq. Additionally, UBS-seq quantitatively maps RNA 5-methylcytosine (m5C) from low inputs of mRNA and allows the detection of m5C stoichiometry in highly structured RNA sequences. Our UBS-seq results identify NSUN2 as the major 'writer' protein responsible for the deposition of ~90% of m5C sites in HeLa mRNA and reveal enriched m5C sites in 5'-regions of mammalian mRNA, which may have functional roles in mRNA translation regulation.
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Affiliation(s)
- Qing Dai
- Department of Chemistry, The University of Chicago, Chicago, IL, USA.
- Howard Hughes Medical Institute, The University of Chicago, Chicago, IL, USA.
| | - Chang Ye
- Department of Chemistry, The University of Chicago, Chicago, IL, USA
- Howard Hughes Medical Institute, The University of Chicago, Chicago, IL, USA
| | - Iryna Irkliyenko
- Department of Chemistry, The University of Chicago, Chicago, IL, USA
| | - Yiding Wang
- Howard Hughes Medical Institute, The University of Chicago, Chicago, IL, USA
- Committee on Genetics, Genomics & System Biology, The University of Chicago, Chicago, IL, USA
| | - Hui-Lung Sun
- Department of Chemistry, The University of Chicago, Chicago, IL, USA
- Howard Hughes Medical Institute, The University of Chicago, Chicago, IL, USA
| | - Yun Gao
- Department of Chemistry, The University of Chicago, Chicago, IL, USA
- Howard Hughes Medical Institute, The University of Chicago, Chicago, IL, USA
| | - Yushuai Liu
- Department of Chemistry, The University of Chicago, Chicago, IL, USA
| | - Alana Beadell
- Department of Chemistry, The University of Chicago, Chicago, IL, USA
- Howard Hughes Medical Institute, The University of Chicago, Chicago, IL, USA
| | - José Perea
- Institute of Biomedical Research of Salamanca, Salamanca, Spain
| | - Ajay Goel
- Department of Molecular Diagnostics and Experimental Therapeutics, Beckman Research Institute of City of Hope, Monrovia, CA, USA
| | - Chuan He
- Department of Chemistry, The University of Chicago, Chicago, IL, USA.
- Howard Hughes Medical Institute, The University of Chicago, Chicago, IL, USA.
- Department of Biochemistry and Molecular Biology, The University of Chicago, Chicago, IL, USA.
- Institute for Biophysical Dynamics, The University of Chicago, Chicago, IL, USA.
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4
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Dai Q, Zhang LS, Sun HL, Pajdzik K, Yang L, Ye C, Ju CW, Liu S, Wang Y, Zheng Z, Zhang L, Harada BT, Dou X, Irkliyenko I, Feng X, Zhang W, Pan T, He C. Quantitative sequencing using BID-seq uncovers abundant pseudouridines in mammalian mRNA at base resolution. Nat Biotechnol 2023; 41:344-354. [PMID: 36302989 PMCID: PMC10017504 DOI: 10.1038/s41587-022-01505-w] [Citation(s) in RCA: 45] [Impact Index Per Article: 45.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2022] [Accepted: 09/08/2022] [Indexed: 12/23/2022]
Abstract
Functional characterization of pseudouridine (Ψ) in mammalian mRNA has been hampered by the lack of a quantitative method that maps Ψ in the whole transcriptome. We report bisulfite-induced deletion sequencing (BID-seq), which uses a bisulfite-mediated reaction to convert pseudouridine stoichiometrically into deletion upon reverse transcription without cytosine deamination. BID-seq enables detection of abundant Ψ sites with stoichiometry information in several human cell lines and 12 different mouse tissues using 10-20 ng input RNA. We uncover consensus sequences for Ψ in mammalian mRNA and assign different 'writer' proteins to individual Ψ deposition. Our results reveal a transcript stabilization role of Ψ sites installed by TRUB1 in human cancer cells. We also detect the presence of Ψ within stop codons of mammalian mRNA and confirm the role of Ψ in promoting stop codon readthrough in vivo. BID-seq will enable future investigations of the roles of Ψ in diverse biological processes.
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Affiliation(s)
- Qing Dai
- Department of Chemistry, The University of Chicago, Chicago, IL, USA.
- Howard Hughes Medical Institute, The University of Chicago, Chicago, IL, USA.
| | - Li-Sheng Zhang
- Department of Chemistry, The University of Chicago, Chicago, IL, USA.
- Howard Hughes Medical Institute, The University of Chicago, Chicago, IL, USA.
| | - Hui-Lung Sun
- Department of Chemistry, The University of Chicago, Chicago, IL, USA
- Howard Hughes Medical Institute, The University of Chicago, Chicago, IL, USA
| | - Kinga Pajdzik
- Department of Chemistry, The University of Chicago, Chicago, IL, USA
- Howard Hughes Medical Institute, The University of Chicago, Chicago, IL, USA
| | - Lei Yang
- First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Chang Ye
- Department of Chemistry, The University of Chicago, Chicago, IL, USA
- Howard Hughes Medical Institute, The University of Chicago, Chicago, IL, USA
| | - Cheng-Wei Ju
- Howard Hughes Medical Institute, The University of Chicago, Chicago, IL, USA
- Pritzker School of Molecular Engineering, The University of Chicago, Chicago, IL, USA
| | - Shun Liu
- Department of Chemistry, The University of Chicago, Chicago, IL, USA
- Howard Hughes Medical Institute, The University of Chicago, Chicago, IL, USA
| | - Yuru Wang
- Department of Chemistry, The University of Chicago, Chicago, IL, USA
- Howard Hughes Medical Institute, The University of Chicago, Chicago, IL, USA
| | - Zhong Zheng
- Department of Chemistry, The University of Chicago, Chicago, IL, USA
- Howard Hughes Medical Institute, The University of Chicago, Chicago, IL, USA
| | - Linda Zhang
- Department of Chemistry, The University of Chicago, Chicago, IL, USA
- Howard Hughes Medical Institute, The University of Chicago, Chicago, IL, USA
| | - Bryan T Harada
- Department of Chemistry, The University of Chicago, Chicago, IL, USA
- Howard Hughes Medical Institute, The University of Chicago, Chicago, IL, USA
| | - Xiaoyang Dou
- Department of Chemistry, The University of Chicago, Chicago, IL, USA
- Howard Hughes Medical Institute, The University of Chicago, Chicago, IL, USA
| | - Iryna Irkliyenko
- Department of Chemistry, The University of Chicago, Chicago, IL, USA
| | - Xinran Feng
- Howard Hughes Medical Institute, The University of Chicago, Chicago, IL, USA
- Department of Human Genetics, The University of Chicago, Chicago, IL, USA
| | - Wen Zhang
- Department of Biochemistry and Molecular Biology, The University of Chicago, Chicago, IL, USA
| | - Tao Pan
- Department of Biochemistry and Molecular Biology, The University of Chicago, Chicago, IL, USA
| | - Chuan He
- Department of Chemistry, The University of Chicago, Chicago, IL, USA.
- Howard Hughes Medical Institute, The University of Chicago, Chicago, IL, USA.
- Department of Biochemistry and Molecular Biology, The University of Chicago, Chicago, IL, USA.
- Institute for Biophysical Dynamics, The University of Chicago, Chicago, IL, USA.
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5
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Ho JC, Wen HJ, Sun CW, Tsai SF, Su PH, Chang CL, Sun HL, Wang SL, Lee CH. Prenatal exposure to nickel and atopic dermatitis at age 3 years: a birth cohort study with cytokine profiles. J Eur Acad Dermatol Venereol 2022; 36:2414-2422. [PMID: 35841308 DOI: 10.1111/jdv.18425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Accepted: 06/15/2022] [Indexed: 11/29/2022]
Abstract
BACKGROUND Nickel, the fifth most common element on Earth, is the leading inducer of contact allergies in humans, with potent immunological effects. Nickel-induced contact allergies predominantly affect females. Maternal exposure to nickel has been associated with several developmental abnormalities. However, how a maternal nickel exposure affects the development of atopic diathesis and immune abnormalities in children has never been addressed. OBJECTIVES We aimed to determine whether maternal Ni exposure affects the development of atopic dermatitis and immune abnormalities in their children. METHODS Using a birth cohort study, we analysed 140 mother-child pairs recruited in 2012-2015 from central Taiwan. Maternal exposure to nickel was estimated using urinary nickel levels measured by inductively coupled plasma mass spectrometry (ICP-MS). The serum levels of 65 analytes and IgE in 3-year-old children were profiled with a multiplex ELISA. The correlation between the maternal urinary nickel concentration and serum analyte levels was assessed using Spearmen's correlation. Multivariant regression analysis was performed to evaluate the association between maternal urinary nickel levels and serum analyte concentrations in their children. RESULTS The geometric means of the maternal urinary nickel and the children's serum IgE levels were 2.27 μg/L and 69.71 IU/ml, respectively. The maternal nickel exposure was associated with increased serum levels of IL-1β, IL-2, TNF-α, and leukaemia inhibitory factor (LIF) but with decreased serum levels of matrix metalloproteinase-1 (MMP-1), IL-2R, and eotaxin-1 in the children. In addition, the development of childhood atopic dermatitis at 3 years old was significantly associated with the child's serum levels of IgE and IL-2R, but it was negatively associated with the maternal nickel exposure. CONCLUSIONS This is the first study showing the potential immunological effects of maternal nickel exposure in their children at an early developmental stage.
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Affiliation(s)
- J C Ho
- Department of Dermatology, Chiayi Chang Gung Memorial Hospital, Chiayi, Taiwan.,Department of Dermatology, Chang Gung University College of Medicine, Taoyuan, Taiwan
| | - H J Wen
- National Institute of Environmental Health Sciences, National Health Research Institutes, Taiwan.,Institute of Earth Science, Academia Sinica, Taipei, Taiwan
| | - C W Sun
- National Institute of Environmental Health Sciences, National Health Research Institutes, Taiwan
| | - S F Tsai
- National Institute of Environmental Health Sciences, National Health Research Institutes, Taiwan
| | - P H Su
- Department of Pediatrics, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - C L Chang
- Department of Pediatrics, Hsinchu Cathay General Hospital, Hsinchu, Taiwan
| | - H L Sun
- Department of Pediatrics, Chung Shan Medical University Hospital, Taichung, Taiwan.,School of Medicine, Chung Shan Medical University, Taichung, Taiwan
| | - S L Wang
- National Institute of Environmental Health Sciences, National Health Research Institutes, Taiwan.,Department of Public Health, National Defence Medical Centre, Taipei, Taiwan.,Department of Safety, Health, and Environmental Engineering, National United University, Miaoli, Taiwan
| | - C H Lee
- Department of Dermatology, Chang Gung University College of Medicine, Taoyuan, Taiwan.,Department of Dermatology, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan
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6
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Zhang LC, Sun HL, Shen YR, Chang FF, Sun JW, Wei YX. [Analysis of relationship between distribution of pathogenic microorganisms in olfactory cleft and olfactory disorders among patients with upper respiratory inflammation during the prevention and control of COVID-19]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2022; 57:683-691. [PMID: 35725310 DOI: 10.3760/cma.j.cn115330-20210727-00490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective: To explore the relationship between pathogens in the olfactory cleft area and olfactory disorders in patients with upper respiratory inflammation (URI) during the prevention and control of 2019 novel coronavirus disease (COVID-19). Methods: A total of 234 URI patients including acute upper respiratory infection, chronic rhinosinusitis (CRS), allergic rhinitis (AR) were continuously selected from September 2020 to March 2021 in Beijing Anzhen Hospital and 98 healthy adults were enrolled as controls. The secretions from the olfactory cleft of all subjects were collected with nasal swabs under nasal endoscopy. Multiple real-time fluorescent quantitative polymerase chain reaction detection method was used to detect nucleic acids of 33 types of respiratory pathogenic microorganism. Sniffin' Sticks olfactory test was performed on all patients with URI. URI patients with olfactory dysfunction were followed up for 9 (8, 10) months (M (Q1, Q3)). SPSS 20.0 software was used for statistical analysis. Results: Among the 98 controls, 9 (9.18%) were positive for pathogenic microorganisms, including 1 (1.02%) rhinovirus, 1 (1.02%) parainfluenza virus type 3, 3 (3.06%) enterovirus, 1 (1.02%) staphylococcus aureus and 3 (3.06%) Moraxella catarrhalis. Among the 234 URI patients, 111 (47.44%) had olfactory disorders and 123 (52.56%) had normal sense of smell. In the olfactory disorder group (111 cases), 38 cases (34.23%) were positive for pathogenic microorganisms, and 4 cases (3.60%) were mixed infection, including 11 cases of rhinovirus (9.91%), 5 cases of coronavirus 229E (4.50%), 2 cases of coronavirus OC43/NL63 (1.80%), 3 cases of parainfluenza virus type 1 (2.70%), 2 cases of enterovirus (1.80%), 1 case of influenza B virus type BV (0.90%), 11 cases of Staphylococcus aureus (9.91%), 7 cases of Moraxella catarrhalis (6.31%), and 1 case of Klebsiella pneumoniae (0.90%). In the normal smell group (123 cases), 18 cases (14.63%) were positive for pathogenic microorganisms, and 1 case (0.81%) was mixed infection, including 3 cases of rhinovirus (2.44%), 4 cases of coronavirus 229E (3.25%), 1 case of Influenza virus type 3 (0.81%), 3 cases of enterovirus (2.44%), 3 cases of Staphylococcus aureus (2.44%), 4 cases of Moraxella catarrhalis (3.25%), and 1 case of Klebsiella pneumoniae (0.81%). Univariate analysis between the two groups found that there were significant differences in the detection rate of pathogenic microorganisms, rhinovirus and Staphylococcus aureus between the groups (all P<0.05). The detection rate of parainfluenza virus type 1, Staphylococcus aureus, and rhinovirus were different between the patients with olfactory disorder and normal olfactory function in the three subgroups of acute upper respiratory tract infection, CRS and AR, respectively (χ2 value was 3.88, 4.53 and 4.73, respectively, all P<0.05). During the follow-up period, among the 111 patients with olfactory disorder, 71 (63.96%) patients' olfactory function returned to normal, 32 (28.83%) patients' olfactory function improved but not completely returned to normal, 8 (7.21%) patients' olfactory function did not improve. Conclusions: During the prevention and control of COVID-19, rhinovirus or Staphylococcus aureus infection or colonization of URI patients is closely related to olfactory disorders. Parainfluenza virus type 1 infection can cause relatively persistent olfactory disorders in patients with acute upper respiratory tract infection. Staphylococcus aureus and rhinovirus colonization are related to the occurrence of olfactory dysfunction in CRS and AR patients respectively.
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Affiliation(s)
- L C Zhang
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| | - H L Sun
- Key Laboratory of Upper Airway Dysfunction, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| | - Y R Shen
- Key Laboratory of Upper Airway Dysfunction, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| | - F F Chang
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| | - J W Sun
- Department of Otorhinolaryngology Head and Neck Surgery, the First Affiliated Hospital of USTC (Anhui Provincial Hospital), Hefei 230026, China
| | - Y X Wei
- Department of Otorhinolaryngology Head and Neck Surgery, Capital Institute of Pediatrics, Beijing 100020, China
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7
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Barajas JM, Lin CH, Sun HL, Alencastro F, Zhu AC, Aljuhani M, Navari L, Yilmaz SA, Yu L, Corps K, He C, Duncan AW, Ghoshal K. METTL3 Regulates Liver Homeostasis, Hepatocyte Ploidy, and Circadian Rhythm-Controlled Gene Expression in Mice. Am J Pathol 2022; 192:56-71. [PMID: 34599880 PMCID: PMC8759040 DOI: 10.1016/j.ajpath.2021.09.005] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 08/19/2021] [Accepted: 09/15/2021] [Indexed: 01/03/2023]
Abstract
N6-methyladenosine (m6A), the most abundant internal modifier of mRNAs installed by the methyltransferase 13 (METTL3) at the (G/A)(m6A)C motif, plays a critical role in the regulation of gene expression. METTL3 is essential for embryonic development, and its dysregulation is linked to various diseases. However, the role of METTL3 in liver biology is largely unknown. In this study, METTL3 function was unraveled in mice depleted of Mettl3 in neonatal livers (Mettl3fl/fl; Alb-Cre). Liver-specific Mettl3 knockout (M3LKO) mice exhibited global decrease in m6A on polyadenylated RNAs and pathologic features associated with nonalcoholic fatty liver disease (eg, hepatocyte ballooning, ductular reaction, microsteatosis, pleomorphic nuclei, DNA damage, foci of altered hepatocytes, focal lobular and portal inflammation, and elevated serum alanine transaminase/alkaline phosphatase levels). Mettl3-depleted hepatocytes were highly proliferative, with decreased numbers of binucleate hepatocytes and increased nuclear polyploidy. M3LKO livers were characterized by reduced m6A and expression of several key metabolic transcripts regulated by circadian rhythm and decreased nuclear protein levels of the core clock transcription factors BMAL1 and CLOCK. A significant decrease in total Bmal1 and Clock mRNAs but an increase in their nuclear levels were observed in M3LKO livers, suggesting impaired nuclear export. Consistent with the phenotype, methylated (m6A) RNA immunoprecipitation coupled with sequencing and RNA sequencing revealed transcriptome-wide loss of m6A markers and alterations in abundance of mRNAs involved in metabolism in M3LKO. Collectively, METTL3 and m6A modifications are critical regulators of liver homeostasis and function.
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Affiliation(s)
- Juan M Barajas
- Department of Pathology, The Ohio State University, Columbus, Ohio
| | - Cho-Hao Lin
- Department of Pathology, The Ohio State University, Columbus, Ohio; Comprehensive Cancer Center, College of Medicine, The Ohio State University, Columbus, Ohio
| | - Hui-Lung Sun
- Department of Biochemistry and Molecular Biology and Institute for Biophysical Dynamics, Howard Hughes Medical Institute, University of Chicago, Chicago, Illinois
| | - Frances Alencastro
- Department of Pathology, Pittsburgh Liver Research Center, McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pennsylvania
| | - Allen C Zhu
- Department of Biochemistry and Molecular Biology and Institute for Biophysical Dynamics, Howard Hughes Medical Institute, University of Chicago, Chicago, Illinois
| | - Mona Aljuhani
- Department of Pathology, The Ohio State University, Columbus, Ohio
| | - Ladan Navari
- Comprehensive Cancer Center, College of Medicine, The Ohio State University, Columbus, Ohio
| | - Selen A Yilmaz
- Department of Biomedical Informatics, The Ohio State University, Columbus, Ohio
| | - Lianbo Yu
- Department of Biomedical Informatics, The Ohio State University, Columbus, Ohio
| | - Kara Corps
- Department of Veterinary Biosciences, The Ohio State University, Columbus, Ohio
| | - Chuan He
- Department of Biochemistry and Molecular Biology and Institute for Biophysical Dynamics, Howard Hughes Medical Institute, University of Chicago, Chicago, Illinois
| | - Andrew W Duncan
- Department of Pathology, Pittsburgh Liver Research Center, McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pennsylvania.
| | - Kalpana Ghoshal
- Department of Pathology, The Ohio State University, Columbus, Ohio; Comprehensive Cancer Center, College of Medicine, The Ohio State University, Columbus, Ohio.
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8
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Li LM, Chen C, Ran RX, Huang JT, Sun HL, Zeng C, Zhang Z, Zhang W, Liu SM. Corrigendum: Loss of TARBP2 Drives the Progression of Hepatocellular Carcinoma via miR-145-SERPINE1 Axis. Front Oncol 2021; 11:746958. [PMID: 34557419 PMCID: PMC8453450 DOI: 10.3389/fonc.2021.746958] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2021] [Accepted: 08/13/2021] [Indexed: 11/26/2022] Open
Affiliation(s)
- Li-Man Li
- Department of Clinical Laboratory, Center for Gene Diagnosis, and Program of Clinical Laboratory Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Chang Chen
- Department of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
| | - Ruo-Xi Ran
- Department of Clinical Laboratory, Center for Gene Diagnosis, and Program of Clinical Laboratory Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Jing-Tao Huang
- Department of Clinical Laboratory, Center for Gene Diagnosis, and Program of Clinical Laboratory Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China.,Department of Clinical Laboratory, Renmin Hospital, Wuhan University, Wuhan, China
| | - Hui-Lung Sun
- Department of Chemistry and Institute for Biophysical Dynamics, Howard Hughes Medical Institute, The University of Chicago, Chicago, IL, United States
| | - Chang Zeng
- Department of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
| | - Zhou Zhang
- Department of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
| | - Wei Zhang
- Department of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, United States.,Institute of Precision Medicine, Jining Medical University, Jining, China
| | - Song-Mei Liu
- Department of Clinical Laboratory, Center for Gene Diagnosis, and Program of Clinical Laboratory Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China.,Hubei Province Key Laboratory of Allergy and Immunology, Wuhan, China
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9
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Chai JJ, Liu T, Sun HL, Xu J, Zhu HD, Cai BQ. [Analysis of the clinical characteristics and species distribution of non-tuberculous mycobacteria in a general hospital]. Zhonghua Jie He He Hu Xi Za Zhi 2021; 44:705-710. [PMID: 34645136 DOI: 10.3760/cma.j.cn112147-20201229-01201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To summarize the clinical characteristics and species distribution of nontuberculous mycobacteria(NTM). Methods: We conducted a retrospectively chart review of 453 adult patients with 532 positive cultures with NTM diagnosed and treated in Peking Union Medical College Hospital from January 2014 to December 2018. The information including clinical findings, imaging and etiological data were obtained from clinical examination system. Among these 453 patients, 75 cases met the diagnostic criteria for NTM, with detailed clinical data, culture results and radiological images. Of these patients, 38 were males and 37 were females, with an average age of (50.8±16.2) years. Clinical manifestations, imaging features, NTM species and treatment were analyzed. Results: Among 75 NTM patients, 43 cases (57.3%, 43/75) were infected with Mycobacterium avium Complex (MAC)/intracellular, 18 cases (24.0%, 18/75) with Mycobacterium turtle/abscess, and 7 cases (9.3%, 7/75) with Mycobacterium kansasii. Comorbidities existed in 64.0% patients (48/75). The top two common comorbidities were previous tuberculosis (25.3%, 19/75) infection and clinical bronchiectasis (18.7%, 14/75). After the respiratory disease (82.7%, 62/75), we identified bloodstream as the most frequent manifestation of NTM infection (25.3%, 19/75). MAC was often associated with infection in respiratory system and bloodstream, while rapidly growing mycobacteria (RGM) was more commonly detected in lymph nodes and skin and soft tissues. Cough/expectoration (77.4%, 48/62) was the most common clinical symptom of NTM disease, followed by fever and dyspnea. The frequent imaging findings were nodules (41.9%, 26/62), bronchiectasis (37.1%, 23/62), and fibrous cavities (24.2%, 15/62). In disseminated NTM disease, 94.7% (18/19) patients had underlying diseases and 89.5% (17/19) patients had long-term immunosuppression. Conclusion: The most common NTM species was Mycobacterium avium/intracellular in our series. The predominant infected organ was the respiratory system. Previous tuberculosis history likely increased the risk of infection.
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Affiliation(s)
- J J Chai
- Emergency Department, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - T Liu
- Department of Pulmonary and Critical Care Medicine, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - H L Sun
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - J Xu
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - H D Zhu
- Emergency Department, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - B Q Cai
- Department of Pulmonary and Critical Care Medicine, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
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10
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Li JN, Sun HL, Wang MY, Chen PS. E-cadherin Interacts With Posttranslationally-Modified AGO2 to Enhance miRISC Activity. Front Cell Dev Biol 2021; 9:671244. [PMID: 34291046 PMCID: PMC8287304 DOI: 10.3389/fcell.2021.671244] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Accepted: 05/31/2021] [Indexed: 12/21/2022] Open
Abstract
MicroRNAs (miRNAs) are small non-coding RNAs which post-transcriptionally suppress target mRNAs expression and/or translation to modulate pathophyological processes. Expression and function of miRNAs are fine-tuned by a conserved biogenesis machinery involves two RNase-dependent processing steps of miRNA maturation and the final step of miRNA-induced silencing complex (miRISC)-mediated target silencing. A functional miRISC requires Argonaute 2 (AGO2) as an essential catalytic component which plays central roles in miRISC function. We uncovered a post-translational regulatory mechanism of AGO2 by E-cadherin. Mechanistically, E-cadherin activates ERK to phosphorylate AGO2, along with enhanced protein glycosylation. Consequently, the phosphorylated AGO2 was stabilized and ultimately resulted in induced miRISC activity on gene silencing. This study revealed a novel pathway for miRNA regulation through an E-cadherin-mediated miRISC activation.
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Affiliation(s)
- Jie-Ning Li
- College of Medicine, Institute of Basic Medical Sciences, National Cheng Kung University, Tainan, Taiwan.,Department of Medical Laboratory Science and Biotechnology, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Hui-Lung Sun
- Department of Chemistry, Institute for Biophysical Dynamics, The University of Chicago, Chicago, IL, United States
| | - Ming-Yang Wang
- Department of Surgery, National Taiwan University Hospital, Taipei, Taiwan.,Department of Surgical Oncology, National Taiwan University Cancer Center, Taipei, Taiwan
| | - Pai-Sheng Chen
- College of Medicine, Institute of Basic Medical Sciences, National Cheng Kung University, Tainan, Taiwan.,Department of Medical Laboratory Science and Biotechnology, College of Medicine, National Cheng Kung University, Tainan, Taiwan
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11
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Zhou F, Hu HY, Li DX, Tan LG, Zhang Q, Gao HT, Sun HL, Tian XL, Shi MW, Zhang FL, Li CW. Exploring the Biological and Molecular Characteristics of Resistance to Fludioxonil in Sclerotinia sclerotiorum From Soybean in China. Plant Dis 2021; 105:1936-1941. [PMID: 33044139 DOI: 10.1094/pdis-07-20-1621-re] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Sclerotinia sclerotiorum is one of the most damaging and economically important necrotrophic plant pathogens, infecting more than 400 plant species globally. Although the phenylpyrrole fungicide fludioxonil has high activity against S. sclerotiorum, reports indicate that there is also substantial potential for the development of fungicide resistance. However, the current study investigating five fludioxonil-resistant laboratory mutants found a significant fitness cost associated with fludioxonil resistance resulting in significantly (P < 0.05) reduced mycelial growth and sclerotia formation on potato dextrose agar as well as significantly (P < 0.05) lower pathogenicity on detached tomato leaves, with one mutant, LK-1R, completely losing the capacity to cause infection. In addition, all of the fludioxonil-resistant mutants had significantly (P < 0.05) increased sensitivity to osmotic stress (0.5 M of potassium chloride and 1.0 M of glucose), which is consistent with the proposed fludioxonil target sites within the high osmolarity glycerol stress response mitogen-activated protein kinase (HOG1-MAPK) signaling transduction pathway. Sequence analysis of six genes from this two-component pathway, including SsHk, SsYpd, SsSk1, SsSk2, SsPbs, and SsHog, revealed several mutations that may be associated with fludioxonil resistance. For example, six separate point mutations were found in SsHk that led to changes in the predicted amino acid sequence, including A136G, F249V, G353A, E560K, M610K, and K727R. Similarly, SsPbs had three mutations (D34G, S46L, and L337E), SsSk1 and SsYpd had two (S53G and A795V for SsSk1, and E67G and Y141H for SsYpd), and SsHog and SsSk2 had one each (V220A and S763P, respectively). To our knowledge, these constitute the first reports of amino acid changes in proteins of the HOG1-MAPK pathway being associated with fludioxonil resistance in S. sclerotiorum. This study also showed a positive cross-resistance between fludioxonil and dimethachlone and procymidone, but none with tebuconazole or carbendazim, indicating that the inclusion of tebuconazole within an integrated pest management program could reduce the risk of fludioxonil resistance developing in field populations of S. sclerotiorum and ensure the sustainable production of soybeans in China into the future.
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Affiliation(s)
- F Zhou
- Henan Engineering Research Center of Crop Genome Editing, Henan Institute of Science and Technology, Xinxiang 453003, China
- Henan Engineering Research Center of Biological Pesticide and Fertilizer Development and Synergistic Application, Henan Institute of Science and Technology, Xinxiang 453003, China
| | - H Y Hu
- Henan Engineering Research Center of Crop Genome Editing, Henan Institute of Science and Technology, Xinxiang 453003, China
| | - D X Li
- Henan Engineering Research Center of Crop Genome Editing, Henan Institute of Science and Technology, Xinxiang 453003, China
| | - L G Tan
- Henan Engineering Research Center of Biological Pesticide and Fertilizer Development and Synergistic Application, Henan Institute of Science and Technology, Xinxiang 453003, China
| | - Q Zhang
- Henan Engineering Research Center of Biological Pesticide and Fertilizer Development and Synergistic Application, Henan Institute of Science and Technology, Xinxiang 453003, China
| | - H T Gao
- Henan Engineering Research Center of Crop Genome Editing, Henan Institute of Science and Technology, Xinxiang 453003, China
| | - H L Sun
- Henan Engineering Research Center of Crop Genome Editing, Henan Institute of Science and Technology, Xinxiang 453003, China
| | - X L Tian
- Henan Engineering Research Center of Biological Pesticide and Fertilizer Development and Synergistic Application, Henan Institute of Science and Technology, Xinxiang 453003, China
| | - M W Shi
- Henan Engineering Research Center of Biological Pesticide and Fertilizer Development and Synergistic Application, Henan Institute of Science and Technology, Xinxiang 453003, China
| | - F L Zhang
- Henan Engineering Research Center of Biological Pesticide and Fertilizer Development and Synergistic Application, Henan Institute of Science and Technology, Xinxiang 453003, China
| | - C W Li
- Henan Engineering Research Center of Crop Genome Editing, Henan Institute of Science and Technology, Xinxiang 453003, China
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12
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Li LM, Chen C, Ran RX, Huang JT, Sun HL, Zeng C, Zhang Z, Zhang W, Liu SM. Loss of TARBP2 Drives the Progression of Hepatocellular Carcinoma via miR-145-SERPINE1 Axis. Front Oncol 2021; 11:620912. [PMID: 34249676 PMCID: PMC8265608 DOI: 10.3389/fonc.2021.620912] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2020] [Accepted: 03/09/2021] [Indexed: 12/13/2022] Open
Abstract
The clinical outcomes of hepatocellular carcinoma (HCC) remain dismal. Elucidating the molecular mechanisms for the progression of aggressive HCC holds the promise for developing novel intervention strategies. The transactivation response element RNA-binding protein (TRBP/TARBP2), a key component of microRNA (miRNA) processing and maturation machinery has been shown to play conflicting roles in tumor development and progression. We sought to investigate the expression of TARBP2 in HCC using well-characterized HCC cell lines, patient-derived tissues and blood samples. Additionally, the potential prognostic and diagnostic value of TARBP2 in HCC were analyzed using Kaplan-Meier plots and ROC curve. Cell counting kit-8 (CCK-8), wound healing and transwell assays examined the ability of TARBP2 to induce cell proliferation, migration, and invasion in HCC cell lines. RNA sequencing was applied to identify the downstream elements of TARBP2. The interaction of potential targets of TARBP2, miR-145 and serpin family E member 1 (SERPINE1), was assessed using luciferase reporter assay. TARBP2 expression was down-regulated in HCC cell lines relative to normal hepatocyte cells, with a similar pattern further confirmed in tissue and blood samples. Notably, the loss of TARBP2 was demonstrated to promote proliferation, migration, and invasion in HCC cell lines. Interestingly, the reduction of TARBP2 was shown to result in the upregulation of SERPINE1, also known as plasminogen activator inhibitor (PAI-1), which is a vital gene of the HIF-1 signaling pathway. Knockdown of SERPINE1 rescued the TARBP2-lost phenotype. Moreover, TARBP2 depletion induced the upregulation of SERPINE1 through reducing the processing of miR-145, which directly targets SERPINE1. Finally, overexpression of miR-145 repressed SERPINE1 and rescued the functions in sh-TARBP2 HCC cells. Our findings underscore a linear TARBP2-miR-145-SERPINE1 pathway that drives HCC progression, with the potential as a novel intervention target for aggressive HCC.
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Affiliation(s)
- Li-Man Li
- Department of Clinical Laboratory, Center for Gene Diagnosis, and Program of Clinical Laboratory Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Chang Chen
- Department of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
| | - Ruo-Xi Ran
- Department of Clinical Laboratory, Center for Gene Diagnosis, and Program of Clinical Laboratory Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Jing-Tao Huang
- Department of Clinical Laboratory, Center for Gene Diagnosis, and Program of Clinical Laboratory Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China.,Department of Clinical Laboratory, Renmin Hospital, Wuhan University, Wuhan, China
| | - Hui-Lung Sun
- Department of Chemistry and Institute for Biophysical Dynamics, Howard Hughes Medical Institute, The University of Chicago, Chicago, IL, United States
| | - Chang Zeng
- Department of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
| | - Zhou Zhang
- Department of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
| | - Wei Zhang
- Department of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, United States.,Institute of Precision Medicine, Jining Medical University, Jining, China
| | - Song-Mei Liu
- Department of Clinical Laboratory, Center for Gene Diagnosis, and Program of Clinical Laboratory Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China.,Hubei Province Key Laboratory of Allergy and Immunology, Wuhan, China
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13
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Jiang QX, Wang YL, Yijie YJ, Liu XQ, Xu J, Zheng MC, Feng H, Wang WW, Sun HL, Zhu SL, Li WJ, Zhao N. [Multicenter cross-sectional investigation on the cleaning status and influencing factors of skin cleaning outside the wound in adult trauma patients]. Zhonghua Shao Shang Za Zhi 2021; 37:429-436. [PMID: 34044525 DOI: 10.3760/cma.j.cn501120-20210116-00023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the status and influencing factors of skin cleaning outside wound (hereinafter referred to as skin) in adult trauma patients. Methods: A multicenter cross-sectional investigation was conducted. From September 1 to 30, 2020, a total of 952 adult trauma patients who met the inclusion criteria were admitted to wound care clinics or trauma surgery wards of 13 military or local Grade Ⅲ Level A hospitals, including the General Hospital of the Eastern Theater Command of People's Liberation Army and the Army Medical Center, etc. A self-designed questionnaire on cleaning status of skin in trauma patients was released through the "questionnaire star" website to investigate basic information such as gender, age, education level, living status, and self-care ability, trauma information such as cause of injury, wound duration, trauma site, trauma depth, wound pain, wound peculiar smell, and wound cleaning solution, and skin cleaning status after injury such as whether to clean or not, cleaning method, cleaning frequency, cleaning duration in each time, or reasons for not cleaning. The patients who cleaned skin regularly after injury were included in cleaning group, and the other patients were included in no cleaning group. The basic information, trauma information, and skin cleaning status after injury of patients in 2 groups were investigated. Data were statistically analyzed with chi-square test, and binary multivariate logistic regression analysis was performed on indicators with statistically significant differences between the two groups to screen the independent influencing factors of skin cleaning in trauma patients. Results: A total of 952 questionnaires were received, and the recovery rate was 100%. Three invalid questionnaires were eliminated, and 949 valid questionnaires were obtained, with an effective rate of 99.68%. In 949 patients, there were 461 (48.6%) males and 488 (51.4%) females, aged 18-100 (50±18) years. Most patients were less than 60 years old, lived with their families, and could take care of themselves completely. Nearly half of the patients were with junior high school or below education level. The main causes of injury were sharp cutting injury and falling injury, the wound duration was 2-365 days, most of the injured parts were limbs and trunk, the wound depth was mostly full-thickness injury, and most patients had wound-related pain and no peculiar smell and used 5 g/L iodophor to clean the wound. Totally 684 (72.1%) patients cleaned their skin after injury, mainly by scrubbing with warm water, the cleaning frequency was mainly once or twice a week, and the cleaning time was mainly 10 or 15 min for each time. Totally 265 (27.9%) patients didn't clean their skin after injury, and the main causes for not cleaning were following the doctor's advice, followed by worrying about wound infection and loss of self-care ability. There were significantly statistical differences in constituent ratios of education level, self-care ability, cause of injury, wound pain, and wound peculiar smell of patients in 2 groups (χ2=12.365, 24.519, 22.820, 9.572, 92.342, P<0.01). Education level, self-care ability, cause of injury, wound pain, and wound peculiar smell were potential influencing factors of skin cleaning in patients. Binary multivariate logistic regression analysis showed that self-care ability, wound pain, and wound peculiar smell were independent influencing factors of skin cleaning in patients (odds ratio=1.51, 0.52, 3.72, 95% confidence interval=1.08-2.12, 0.42-0.89, 2.66-5.22, P<0.05 or P<0.01). Conclusions: Self-care ability, wound pain, and wound peculiar smell are independent influencing factors of skin cleaning in adult trauma patients.
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Affiliation(s)
- Q X Jiang
- Department of Burns and Plastic Surgery, the General Hospital of the Eastern Theater Command of PLA, Nanjing 210002, China
| | - Y L Wang
- Nursing Department, the Army Medical Center, Chongqing 400042, China
| | - Y J Yijie
- Department of Burns, the Affiliated Hospital of Jiangnan University(Wuxi Third People's Hospital), Wuxi 214035, China
| | - X Q Liu
- Medical School, Nanjing University, Nanjing 210008, China
| | - J Xu
- Department of Orthopedics, Suqian People's Hospital of Nanjing Drum-Tower Hospital Group, Suqian 223800, China
| | - M C Zheng
- Department of Colorectal Surgery, Cancer Hospital Affiliated to Sun Yat-Sen University, Guangzhou 510060, China
| | - H Feng
- Department of Urology, the Second Affiliated Hospital of Army Medical University (the Third Military Medical University), Chongqing 400037, China
| | - W W Wang
- Department of Orthopaedics, the Second Naval Hospital of Southern Theater Command of PLA, Sanya 572000, China
| | - H L Sun
- Specialized Nursing Clinic, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, China
| | - S L Zhu
- Department of Surgery, the First People's Hospital of Lianyungang, Lianyungang 222002, China
| | - W J Li
- Wound Care Clinic of Outpatient Department, the 904th Hospital of the Joint Logistic Support Force of PLA, Wuxi 214008, China
| | - N Zhao
- Nursing Department, the 981st Hospital of the Joint Logistic Support Force of PLA, Chengde 067000, China
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14
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Zheng Z, Zhang L, Cui XL, Yu X, Hsu PJ, Lyu R, Tan H, Mandal M, Zhang M, Sun HL, Sanchez Castillo A, Peng J, Clark MR, He C, Huang H. Control of Early B Cell Development by the RNA N 6-Methyladenosine Methylation. Cell Rep 2021; 31:107819. [PMID: 32610122 DOI: 10.1016/j.celrep.2020.107819] [Citation(s) in RCA: 67] [Impact Index Per Article: 22.3] [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: 11/26/2019] [Revised: 05/18/2020] [Accepted: 06/03/2020] [Indexed: 12/21/2022] Open
Abstract
The RNA N6-methyladenosine (m6A) methylation is installed by the METTL3-METTL14 methyltransferase complex. This modification has critical regulatory roles in various biological processes. Here, we report that deletion of Mettl14 dramatically reduces mRNA m6A methylation in developing B cells and severely blocks B cell development in mice. Deletion of Mettl14 impairs interleukin-7 (IL-7)-induced pro-B cell proliferation and the large-pre-B-to-small-pre-B transition and causes dramatic abnormalities in gene expression programs important for B cell development. Suppression of a group of transcripts by cytoplasmic m6A reader YTHDF2 is critical to the IL-7-induced pro-B cell proliferation. In contrast, the block in the large-pre-B-to-small-pre-B transition is independent of YTHDF1 or YTHDF2 but is associated with a failure to properly upregulate key transcription factors regulating this transition. Our data highlight the important regulatory roles of the RNA m6A methylation and its reader proteins in early B cell development.
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Affiliation(s)
- Zhong Zheng
- Institute for Biophysical Dynamics, The University of Chicago, Chicago, IL 60637, USA; Howard Hughes Medical Institute, The University of Chicago, Chicago, IL 60637, USA; Department of Medicine, Section of Rheumatology and Gwen Knapp Center for Lupus and Immunology Research, The University of Chicago, Chicago, IL 60637, USA; Department of Chemistry, The University of Chicago, Chicago, IL 60637, USA
| | - Linda Zhang
- Institute for Biophysical Dynamics, The University of Chicago, Chicago, IL 60637, USA; Howard Hughes Medical Institute, The University of Chicago, Chicago, IL 60637, USA; Department of Chemistry, The University of Chicago, Chicago, IL 60637, USA
| | - Xiao-Long Cui
- Institute for Biophysical Dynamics, The University of Chicago, Chicago, IL 60637, USA; Howard Hughes Medical Institute, The University of Chicago, Chicago, IL 60637, USA
| | - Xianbin Yu
- Institute for Biophysical Dynamics, The University of Chicago, Chicago, IL 60637, USA; Howard Hughes Medical Institute, The University of Chicago, Chicago, IL 60637, USA
| | - Phillip J Hsu
- Institute for Biophysical Dynamics, The University of Chicago, Chicago, IL 60637, USA; Howard Hughes Medical Institute, The University of Chicago, Chicago, IL 60637, USA; Committee on Immunology, The University of Chicago, Chicago, IL 60637, USA
| | - Ruitu Lyu
- Institute for Biophysical Dynamics, The University of Chicago, Chicago, IL 60637, USA; Howard Hughes Medical Institute, The University of Chicago, Chicago, IL 60637, USA
| | - Haiyan Tan
- Department of Structural Biology, St. Jude Children's Research Hospital, Memphis, TN 38105, USA
| | - Malay Mandal
- Department of Medicine, Section of Rheumatology and Gwen Knapp Center for Lupus and Immunology Research, The University of Chicago, Chicago, IL 60637, USA
| | - Michelle Zhang
- Institute for Biophysical Dynamics, The University of Chicago, Chicago, IL 60637, USA; Howard Hughes Medical Institute, The University of Chicago, Chicago, IL 60637, USA; Department of Medicine, Section of Rheumatology and Gwen Knapp Center for Lupus and Immunology Research, The University of Chicago, Chicago, IL 60637, USA
| | - Hui-Lung Sun
- Institute for Biophysical Dynamics, The University of Chicago, Chicago, IL 60637, USA; Howard Hughes Medical Institute, The University of Chicago, Chicago, IL 60637, USA
| | - Arantxa Sanchez Castillo
- Institute for Biophysical Dynamics, The University of Chicago, Chicago, IL 60637, USA; Howard Hughes Medical Institute, The University of Chicago, Chicago, IL 60637, USA
| | - Junmin Peng
- Department of Structural Biology, St. Jude Children's Research Hospital, Memphis, TN 38105, USA
| | - Marcus R Clark
- Department of Medicine, Section of Rheumatology and Gwen Knapp Center for Lupus and Immunology Research, The University of Chicago, Chicago, IL 60637, USA; Committee on Immunology, The University of Chicago, Chicago, IL 60637, USA
| | - Chuan He
- Institute for Biophysical Dynamics, The University of Chicago, Chicago, IL 60637, USA; Howard Hughes Medical Institute, The University of Chicago, Chicago, IL 60637, USA; Department of Chemistry, The University of Chicago, Chicago, IL 60637, USA; Committee on Immunology, The University of Chicago, Chicago, IL 60637, USA.
| | - Haochu Huang
- Department of Medicine, Section of Rheumatology and Gwen Knapp Center for Lupus and Immunology Research, The University of Chicago, Chicago, IL 60637, USA; Committee on Immunology, The University of Chicago, Chicago, IL 60637, USA.
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15
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Sun HL, Zhu AC, Gao Y, Terajima H, Fei Q, Liu S, Zhang L, Zhang Z, Harada BT, He YY, Bissonnette MB, Hung MC, He C. Stabilization of ERK-Phosphorylated METTL3 by USP5 Increases m 6A Methylation. Mol Cell 2020; 80:633-647.e7. [PMID: 33217317 DOI: 10.1016/j.molcel.2020.10.026] [Citation(s) in RCA: 73] [Impact Index Per Article: 18.3] [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: 11/21/2019] [Revised: 08/31/2020] [Accepted: 10/16/2020] [Indexed: 12/14/2022]
Abstract
N6-methyladenosine (m6A) is the most abundant mRNA modification and is installed by the METTL3-METTL14-WTAP methyltransferase complex. Although the importance of m6A methylation in mRNA metabolism has been well documented recently, regulation of the m6A machinery remains obscure. Through a genome-wide CRISPR screen, we identify the ERK pathway and USP5 as positive regulators of the m6A deposition. We find that ERK phosphorylates METTL3 at S43/S50/S525 and WTAP at S306/S341, followed by deubiquitination by USP5, resulting in stabilization of the m6A methyltransferase complex. Lack of METTL3/WTAP phosphorylation reduces decay of m6A-labeled pluripotent factor transcripts and traps mouse embryonic stem cells in the pluripotent state. The same phosphorylation can also be found in ERK-activated human cancer cells and contribute to tumorigenesis. Our study reveals an unrecognized function of ERK in regulating m6A methylation.
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Affiliation(s)
- Hui-Lung Sun
- Department of Chemistry and Institute for Biophysical Dynamics, The University of Chicago, Chicago, IL 60637, USA; Howard Hughes Medical Institute, The University of Chicago, Chicago, IL 60637, USA
| | - Allen C Zhu
- Department of Chemistry and Institute for Biophysical Dynamics, The University of Chicago, Chicago, IL 60637, USA; Howard Hughes Medical Institute, The University of Chicago, Chicago, IL 60637, USA; Medical Scientist Training Program, The University of Chicago, Chicago, IL 60637, USA
| | - Yawei Gao
- Clinical and Translational Research Center of Shanghai First Maternity and Infant Hospital, Shanghai Key Laboratory of Signaling and Disease Research, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China
| | - Hideki Terajima
- Department of Chemistry and Institute for Biophysical Dynamics, The University of Chicago, Chicago, IL 60637, USA; Howard Hughes Medical Institute, The University of Chicago, Chicago, IL 60637, USA
| | - Qili Fei
- Department of Chemistry and Institute for Biophysical Dynamics, The University of Chicago, Chicago, IL 60637, USA; Howard Hughes Medical Institute, The University of Chicago, Chicago, IL 60637, USA
| | - Shun Liu
- Department of Chemistry and Institute for Biophysical Dynamics, The University of Chicago, Chicago, IL 60637, USA; Howard Hughes Medical Institute, The University of Chicago, Chicago, IL 60637, USA
| | - Linda Zhang
- Department of Chemistry and Institute for Biophysical Dynamics, The University of Chicago, Chicago, IL 60637, USA; Howard Hughes Medical Institute, The University of Chicago, Chicago, IL 60637, USA
| | - Zijie Zhang
- Department of Chemistry and Institute for Biophysical Dynamics, The University of Chicago, Chicago, IL 60637, USA; Howard Hughes Medical Institute, The University of Chicago, Chicago, IL 60637, USA
| | - Bryan T Harada
- Department of Chemistry and Institute for Biophysical Dynamics, The University of Chicago, Chicago, IL 60637, USA; Howard Hughes Medical Institute, The University of Chicago, Chicago, IL 60637, USA
| | - Yu-Ying He
- Department of Medicine, Section of Dermatology, University of Chicago, Chicago, IL 60637, USA
| | - Marc B Bissonnette
- Department of Medicine, The University of Chicago, Chicago, IL 60637, USA
| | | | - Chuan He
- Department of Chemistry and Institute for Biophysical Dynamics, The University of Chicago, Chicago, IL 60637, USA; Howard Hughes Medical Institute, The University of Chicago, Chicago, IL 60637, USA; Department of Biochemistry and Molecular Biology, The University of Chicago, Chicago, IL, USA.
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16
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Lu TX, Zheng Z, Zhang L, Sun HL, Bissonnette M, Huang H, He C. A New Model of Spontaneous Colitis in Mice Induced by Deletion of an RNA m 6A Methyltransferase Component METTL14 in T Cells. Cell Mol Gastroenterol Hepatol 2020; 10:747-761. [PMID: 32634481 PMCID: PMC7498954 DOI: 10.1016/j.jcmgh.2020.07.001] [Citation(s) in RCA: 68] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Revised: 07/01/2020] [Accepted: 07/02/2020] [Indexed: 12/11/2022]
Abstract
BACKGROUND AND AIMS Mouse models of colitis have been used to study the pathogenesis of inflammatory bowel disease (IBD) and for pre-clinical development of therapeutic agents. Various epigenetic pathways have been shown to play important regulatory roles in IBD. Reversible N6-methyladenosine (m6A) methylation represents a new layer of post-transcriptional gene regulation that affects a variety of biological processes. We aim to study how deletion of a critical component of m6A writer complex, METTL14, in T cells affects the development of colitis. METHODS Conditional Mettl14 was lineage specifically deleted with CD4-regulated Cre in T cells. Colitis phenotype was determined by H&E staining, colon weight-to-length ratio and cytokine expression. We additionally utilized T cell transfer model of colitis and adoptive transfer of regulatory T cells. Mice were treated with antibiotics to determine if the colitis could be attenuated. RESULTS METTL14 deficiency in T cells induced spontaneous colitis in mice. This was characterized by increased inflammatory cell infiltration, increased colonic weight-to-length ratio and increased Th1 and Th17 cytokines. The colitis development was due to dysfunctional regulatory T (Treg) cells, as adoptive transfer of WT Treg cells attenuated the colitis phenotype. The METTL14-deficient Treg cells have decreased RORγt expression compared with WT controls. METTL14 deficiency caused impaired induction of naïve T cells into induced Treg cells. Antibiotic treatment notably attenuated the colitis development. CONCLUSION Here we report a new mouse model of spontaneous colitis based on perturbation of RNA methylation in T cells. The colitis is T cell-mediated and dependent on the microbiome. This model represents a new tool for elucidating pathogenic pathways, studying the contribution of intestinal microbiome and preclinical testing of therapeutic agents for inflammatory bowel disease.
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Affiliation(s)
- Thomas X. Lu
- Section of Gastroenterology, Hepatology, and Nutrition, University of Chicago Medicine, Chicago, Illinois
| | - Zhong Zheng
- Department of Chemistry, University of Chicago, Chicago, Illinois,Department of Biochemistry and Molecular Biology, University of Chicago, Chicago, Illinois
| | - Linda Zhang
- Department of Chemistry, University of Chicago, Chicago, Illinois,Department of Biochemistry and Molecular Biology, University of Chicago, Chicago, Illinois
| | - Hui-Lung Sun
- Department of Chemistry, University of Chicago, Chicago, Illinois,Department of Biochemistry and Molecular Biology, University of Chicago, Chicago, Illinois
| | - Marc Bissonnette
- Section of Gastroenterology, Hepatology, and Nutrition, University of Chicago Medicine, Chicago, Illinois
| | | | - Chuan He
- Department of Chemistry, University of Chicago, Chicago, Illinois,Department of Biochemistry and Molecular Biology, University of Chicago, Chicago, Illinois,Howard Hughes Medical Institute, Chicago, Illinois,Correspondence Address requests for correspondence to: Chuan He, PhD, Department of Chemistry, University of Chicago. 929 East 57th Street, GCIS RM E319B, Chicago, IL 60637. fax: (773) 702-0805.
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Meng C, Lai CT, Jing Y, Sun HL, Jiang HQ, Yang QL, Liu L, Wang JW. [Five cases of optic neuropathy associated with varicella zoster virus infection]. Zhonghua Yi Xue Za Zhi 2020; 100:1812-1815. [PMID: 32536128 DOI: 10.3760/cma.j.cn112137-20191023-02305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the clinical characteristics, treatment and prognosis of optic neuropathy associated with varicella zoster virus (VZV). Methods: Five cases of optic neuropathy associated with VZV infection from Department of Neurology between January 1, 2014 and March 31, 2019 were retrospectively collected. The clinical manifestations, treatment and prognosis were analyzed. Results: There were 7 eyes involved in 5 cases, 3 cases (3/5) involved only one eye, and 2 cases (2/5) involved both optic nerves. During the follow-up time, no recurrence was found. Severe visual impairment occurred in 4 eyes (4/7) and non-severe visual impairment in 3 eyes (3/7). Visual acuity improved significantly in 1 eye (1/7), turned better in 2 eyes (2/7), and remained unchanged in 4 eyes (4/7). In acute phase, abnormal signals of optic nerve and/or sheath were observed on MR images. Case 3 received antiviral and hormone therapy on the second day after the onset of the disease, and the visual acuity recovered well; the other 4 cases had poor prognosis. Conclusions: Head and face VZV infection can cause serious optic neuropathy, leading to severe visual dysfunction, and poor prognosis, but recurrence is rare. Early intravenous administration of antiviral drugs (acyclovir is the best) and hormones are recommended for VZV infection in this area. It is best to use drugs within 72 hours in order to avoid and reduce secondary optic neuropathy as far as possible.
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Affiliation(s)
- C Meng
- Department of Neurology, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
| | - C T Lai
- Department of Neurology, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
| | - Y Jing
- Department of Neurology, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
| | - H L Sun
- Department of Neurology, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
| | - H Q Jiang
- Department of Neurology, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
| | - Q L Yang
- Department of Neurology, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
| | - L Liu
- Department of Neurology, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
| | - J W Wang
- Department of Neurology, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
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18
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Gao X, Yang XC, Meng LX, Sun HL, Wang T. [Causal relationship between sleep and coronary artery disease: a Mendelian randomization study]. Zhonghua Liu Xing Bing Xue Za Zhi 2020; 41:611-614. [PMID: 32344491 DOI: 10.3760/cma.j.cn112338-20190624-00462] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To understand the causal relationship between sleep and coronary artery disease (CAD). Methods: This study included six genome-wide association parts; five for sleep related traits[sleep duration (continuous variable), long sleep duration (binary variable), short sleep duration (binary variable), early-to-bed/up habit (known as 'morningness') and frequently insomnia] and one for CAD. Heterogeneity in dependent instrument approach was used to assess and to remove the pleiotropic instruments. Generalized summary data-based Mendelian randomization was performed to estimate the causal relationships between sleep related traits and CAD. And a conservative Bonferroni was used for statistical tests. Results: Sleep duration was putatively causal for CAD (OR=0.755, 95%CI: 0.658-0.867, P=6.68E-05). Our results also indicated significant causal effects between both short sleep duration and frequently insomnia on CAD, with ORs as 4.251 (95%CI: 2.396-7.541, P=7.51E-07) and 1.814 (95%CI: 1.346-2.446, P=9.25E-05), respectively. There was no convincing evidence of causality between long sleep duration or morningness with CAD. Conclusions: Our findings suggested that both sleep duration and frequently insomnia played causal roles on CAD, indicating that disease models should include sleep duration and insomnia as potential factors for CAD to develop effective interventions.
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Affiliation(s)
- X Gao
- Department of Health Statistics, School of Public Health, Shanxi Medical University, Taiyuan 030001, China
| | - X C Yang
- Department of Medical and Biological Statistics, School of Statistics, Renmin University of China, Beijing 100872, China
| | - L X Meng
- Department of Health Statistics, School of Public Health, Shanxi Medical University, Taiyuan 030001, China
| | - H L Sun
- Department of Health Statistics, School of Public Health, Shanxi Medical University, Taiyuan 030001, China
| | - T Wang
- Department of Health Statistics, School of Public Health, Shanxi Medical University, Taiyuan 030001, China
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Fei Q, Zou Z, Roundtree IA, Sun HL, He C. YTHDF2 promotes mitotic entry and is regulated by cell cycle mediators. PLoS Biol 2020; 18:e3000664. [PMID: 32267835 PMCID: PMC7170294 DOI: 10.1371/journal.pbio.3000664] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 04/20/2020] [Accepted: 03/20/2020] [Indexed: 11/19/2022] Open
Abstract
The N6-methyladenosine (m6A) modification regulates mRNA stability and translation. Here, we show that transcriptomic m6A modification can be dynamic and the m6A reader protein YTH N6-methyladenosine RNA binding protein 2 (YTHDF2) promotes mRNA decay during cell cycle. Depletion of YTHDF2 in HeLa cells leads to the delay of mitotic entry due to overaccumulation of negative regulators of cell cycle such as Wee1-like protein kinase (WEE1). We demonstrate that WEE1 transcripts contain m6A modification, which promotes their decay through YTHDF2. Moreover, we found that YTHDF2 protein stability is dependent on cyclin-dependent kinase 1 (CDK1) activity. Thus, CDK1, YTHDF2, and WEE1 form a feedforward regulatory loop to promote mitotic entry. We further identified Cullin 1 (CUL1), Cullin 4A (CUL4A), damaged DNA-binding protein 1 (DDB1), and S-phase kinase-associated protein 2 (SKP2) as components of E3 ubiquitin ligase complexes that mediate YTHDF2 proteolysis. Our study provides insights into how cell cycle mediators modulate transcriptomic m6A modification, which in turn regulates the cell cycle.
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Affiliation(s)
- Qili Fei
- Department of Chemistry, The University of Chicago, Chicago, Illinois, United States of America
- Howard Hughes Medical Institute, The University of Chicago, Chicago, Illinois, United States of America
- Guangdong Laboratory for Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, Guangdong, China
| | - Zhongyu Zou
- Department of Chemistry, The University of Chicago, Chicago, Illinois, United States of America
- Howard Hughes Medical Institute, The University of Chicago, Chicago, Illinois, United States of America
| | - Ian A. Roundtree
- Department of Chemistry, The University of Chicago, Chicago, Illinois, United States of America
- Howard Hughes Medical Institute, The University of Chicago, Chicago, Illinois, United States of America
- Medical Scientist Training Program, The University of Chicago, Chicago, Illinois, United States of America
- Department of Biochemistry and Molecular Biology, The University of Chicago, Chicago, Illinois, United States of America
- Institute for Biophysical Dynamics, The University of Chicago, Chicago, Illinois, United States of America
| | - Hui-Lung Sun
- Department of Chemistry, The University of Chicago, Chicago, Illinois, United States of America
- Howard Hughes Medical Institute, The University of Chicago, Chicago, Illinois, United States of America
| | - Chuan He
- Department of Chemistry, The University of Chicago, Chicago, Illinois, United States of America
- Howard Hughes Medical Institute, The University of Chicago, Chicago, Illinois, United States of America
- Department of Biochemistry and Molecular Biology, The University of Chicago, Chicago, Illinois, United States of America
- Institute for Biophysical Dynamics, The University of Chicago, Chicago, Illinois, United States of America
- * E-mail:
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20
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Sun HL, Cui SL, Liu L, Gao F, Jiang HQ, Wang JW. [Saccadic abnormalities and clinical significance in patients with neuromyelitis optica spectrum disorder]. Zhonghua Yi Xue Za Zhi 2020; 100:1028-1032. [PMID: 32294862 DOI: 10.3760/cma.j.cn112137-20190711-01549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Objective: To characterize the ocular saccadic abnormality in neuromyelitis optica spectrum disorder (NMOSD) patients, and explore the relationship between ocular saccadic abnormality and the overall disability and visual function state. Methods: For the 110 consecutive NMOSD patients who visited the Department of Neurology of Beijing Tongren Hospital from July 2015 to July 2017, a 120 Hz spatial resolution infrared video nystagmus system was used to perform a quantitative horizontal saccade examination. All patients were assessed for overall disability status using the extended disability status scale (EDSS). The subjective visual function status was evaluated using the National Eye Institute-Visual Function Questionnaire (NEI-VFQ 25) and the 10-item neuro-ophthalmic supplement questionnaire (Suppl. 10). Results: A total of 68 (61.8%) of 110 NMOSD patients had horizontal saccadic abnormalities, including 50 cases (45.5%) with abnormal saccade latency, 34 cases (30.9%) with abnormal saccade accuracy and 22 cases (20.0%) with abnormal speed. Patients with abnormal saccade had more intracranial lesions and higher EDSS scores than those with normal eye movements (P=0.006 and P<0.001, respectively). Patients with abnormal saccade had lower Supp.10 scores than the normal patient (P=0.004), while there was no significant difference of NEI-VFQ 25 scores between the two groups (P=0.079). Conclusions: The horizontal saccadic abnormality is common in the NMOSD patients, and the overall disability status and visual function-related quality of life are worse. Quantitative horizontal saccade examination can provide important information on intracranial lesions and neuronal function impairment, and thus it should be emphasized in clinical settings.
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Affiliation(s)
- H L Sun
- Department of Neurology, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
| | - S L Cui
- Department of Neurology, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
| | - L Liu
- Department of Neurology, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
| | - F Gao
- Department of Neurology, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
| | - H Q Jiang
- Department of Neurology, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
| | - J W Wang
- Department of Neurology, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
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Hao Z, Wu T, Cui X, Zhu P, Tan C, Dou X, Hsu KW, Lin YT, Peng PH, Zhang LS, Gao Y, Hu L, Sun HL, Zhu A, Liu J, Wu KJ, He C. N 6-Deoxyadenosine Methylation in Mammalian Mitochondrial DNA. Mol Cell 2020; 78:382-395.e8. [PMID: 32183942 DOI: 10.1016/j.molcel.2020.02.018] [Citation(s) in RCA: 136] [Impact Index Per Article: 34.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2019] [Revised: 02/03/2020] [Accepted: 02/20/2020] [Indexed: 12/12/2022]
Abstract
N6-Methyldeoxyadenosine (6mA) has recently been shown to exist and play regulatory roles in eukaryotic genomic DNA (gDNA). However, the biological functions of 6mA in mammals have yet to be adequately explored, largely due to its low abundance in most mammalian genomes. Here, we report that mammalian mitochondrial DNA (mtDNA) is enriched for 6mA. The level of 6mA in HepG2 mtDNA is at least 1,300-fold higher than that in gDNA under normal growth conditions, corresponding to approximately four 6mA modifications on each mtDNA molecule. METTL4, a putative mammalian methyltransferase, can mediate mtDNA 6mA methylation, which contributes to attenuated mtDNA transcription and a reduced mtDNA copy number. Mechanistically, the presence of 6mA could repress DNA binding and bending by mitochondrial transcription factor (TFAM). Under hypoxia, the 6mA level in mtDNA could be further elevated, suggesting regulatory roles for 6mA in mitochondrial stress response. Our study reveals DNA 6mA as a regulatory mark in mammalian mtDNA.
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Affiliation(s)
- Ziyang Hao
- Department of Chemistry, Department of Biochemistry and Molecular Biology, Institute for Biophysical Dynamics, Howard Hughes Medical Institute, The University of Chicago, 929 East 57th Street, Chicago, IL 60637, USA
| | - Tong Wu
- Department of Chemistry, Department of Biochemistry and Molecular Biology, Institute for Biophysical Dynamics, Howard Hughes Medical Institute, The University of Chicago, 929 East 57th Street, Chicago, IL 60637, USA
| | - Xiaolong Cui
- Department of Chemistry, Department of Biochemistry and Molecular Biology, Institute for Biophysical Dynamics, Howard Hughes Medical Institute, The University of Chicago, 929 East 57th Street, Chicago, IL 60637, USA
| | - Pingping Zhu
- Department of Chemistry, Department of Biochemistry and Molecular Biology, Institute for Biophysical Dynamics, Howard Hughes Medical Institute, The University of Chicago, 929 East 57th Street, Chicago, IL 60637, USA; School of Life Science, Zhengzhou University, Zhengzhou 450001, China
| | - Caiping Tan
- Department of Chemistry, Department of Biochemistry and Molecular Biology, Institute for Biophysical Dynamics, Howard Hughes Medical Institute, The University of Chicago, 929 East 57th Street, Chicago, IL 60637, USA; MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275, China
| | - Xiaoyang Dou
- Department of Chemistry, Department of Biochemistry and Molecular Biology, Institute for Biophysical Dynamics, Howard Hughes Medical Institute, The University of Chicago, 929 East 57th Street, Chicago, IL 60637, USA
| | - Kai-Wen Hsu
- Cancer Genome Research Center, Chang Gung Memorial Hospital at Linkou, Taoyuan 333, Taiwan
| | - Yueh-Te Lin
- Cancer Genome Research Center, Chang Gung Memorial Hospital at Linkou, Taoyuan 333, Taiwan
| | - Pei-Hua Peng
- Cancer Genome Research Center, Chang Gung Memorial Hospital at Linkou, Taoyuan 333, Taiwan
| | - Li-Sheng Zhang
- Department of Chemistry, Department of Biochemistry and Molecular Biology, Institute for Biophysical Dynamics, Howard Hughes Medical Institute, The University of Chicago, 929 East 57th Street, Chicago, IL 60637, USA
| | - Yawei Gao
- Department of Chemistry, Department of Biochemistry and Molecular Biology, Institute for Biophysical Dynamics, Howard Hughes Medical Institute, The University of Chicago, 929 East 57th Street, Chicago, IL 60637, USA; Clinical and Translational Research Center of Shanghai First Maternity and Infant Hospital, Shanghai Key Laboratory of Signaling and Disease Research, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China
| | - Lulu Hu
- Department of Chemistry, Department of Biochemistry and Molecular Biology, Institute for Biophysical Dynamics, Howard Hughes Medical Institute, The University of Chicago, 929 East 57th Street, Chicago, IL 60637, USA
| | - Hui-Lung Sun
- Department of Chemistry, Department of Biochemistry and Molecular Biology, Institute for Biophysical Dynamics, Howard Hughes Medical Institute, The University of Chicago, 929 East 57th Street, Chicago, IL 60637, USA
| | - Allen Zhu
- Department of Chemistry, Department of Biochemistry and Molecular Biology, Institute for Biophysical Dynamics, Howard Hughes Medical Institute, The University of Chicago, 929 East 57th Street, Chicago, IL 60637, USA
| | - Jianzhao Liu
- Department of Chemistry, Department of Biochemistry and Molecular Biology, Institute for Biophysical Dynamics, Howard Hughes Medical Institute, The University of Chicago, 929 East 57th Street, Chicago, IL 60637, USA
| | - Kou-Juey Wu
- Cancer Genome Research Center, Chang Gung Memorial Hospital at Linkou, Taoyuan 333, Taiwan
| | - Chuan He
- Department of Chemistry, Department of Biochemistry and Molecular Biology, Institute for Biophysical Dynamics, Howard Hughes Medical Institute, The University of Chicago, 929 East 57th Street, Chicago, IL 60637, USA.
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Meng C, Lai CT, Jing Y, Jiang HQ, Sun HL, Ma ZH, Wang JW. [Clinical analysis of 36 cases of idiopathic intracranial hypertension complicated with iron deficiency anemia]. Zhonghua Yi Xue Za Zhi 2019; 99:2592-2596. [PMID: 31510718 DOI: 10.3760/cma.j.issn.0376-2491.2019.33.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the clinical features, imaging findings and prognosis of idiopathic intracranial hypertension (IIH) patients complicated with iron deficiency anemia (IDA). Methods: A total of 307 cases of IIH patients hospitalized in Beijing Tongren Hospital were retrospectively screened between January 1, 2011 and February 28, 2018. There were 49 anemia cases (15.96%) and 45 IDA cases (14.66%), respectively. Finally, 36 IDA patients were enrolled. The clinical characteristics, imaging findings, treatment and prognosis of these patients were analyzed. Results: IIH combined with IDA was more common in women of childbearing age (34/36). There were 30 obese and overweight cases (83.33%), with multiple subacute or chronic course of disease. The visual symptoms in the early IIH patients were first diagnosed in the Department of Ophthalmology. The first symptom was headache with/without visual symptoms (27 cases (75%)). Head MRI detected empty sella or partial empty sella, and 2 cases of venous sinus thrombosis were found in DSA examination. Of the 34 female patients, 24 had simple menometrorrhagia or menstrual disorder. All patients were given methyl acetate to reduce the intracranial pressure and iron therapy. Five patients received low molecular weight heparin-warfarin sequential treatment, 5 cases underwent gynecologic surgery and 2 male cases received hemorrhoid operation. There were 7 cases underwent lumbar cisterna-peritoneal shunt for visual impairment. During the follow-up, intracranial pressure decreased and visual function of patients improved significantly. Conclusions: IIH is frequently found in obese or overweight women at childbearing age and IDA may be an important cause of IIH. IIH can cause serious irreversible visual impairment. Therefore, early identification and active treatment should be performed. Correction of anemia can significantly improve the clinical symptoms of IIH. Operation should be employed for IIH patients with poor visual function or rapid progress, in order to reduce intracranial pressure and improve prognosis as soon as possible.
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Affiliation(s)
- C Meng
- Department of Neurology, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
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Abstract
The development of periodontal tissue is a complex process, including cementoblast proliferation and differentiation. Emerging reports suggest that microRNAs (miRNAs) play crucial roles in gene regulatory networks governing numerous biological processes. However, how miRNAs modulate cementoblast proliferation and differentiation remains largely unknown. In a previous study, we performed miRNA microarray profiling to fully reveal the expression patterns of miRNAs involved in cementoblast differentiation. We focused on miR-361-3p, which decreased during cementoblast differentiation. Overexpression of miR-361-3p resulted in decreased cementoblast differentiation, whereas the functional inhibition of miR-361-3p yielded the opposite effect. The bioinformatics approach identified nuclear factor of activated T-cell 5 (Nfat5) as a potential target of miR-361-3p, which was further verified by dual luciferase assay. Meanwhile, the expression pattern of Nfat5 was verified both in vitro and in vivo. Furthermore, knockdown of Nfat5 mimicked the inhibitory effect of overexpressing miR-361-3p in cementoblasts. Moreover, multiple signaling pathways, including the Erk1/2, JNK, p38, PI3K-Akt, and NF-κB pathways, were notably activated, and the Wnt/ß-catenin pathway was blocked by downregulation of Nfat5 or forced expression of miR-361-3p in cementoblast differentiation. Finally, the complementary approach demonstrated that miR-361-3p regulated cementoblast differentiation via or partially via Erk1/2 and PI3K-Akt. Overall, our study elucidated that the JNK, p38, NF-κB, and Wnt/ß-catenin pathways act as balancing players in the miR-361-3p/Nfat5 signaling axis during cementoblast differentiation.
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Affiliation(s)
- H Q Liao
- 1 The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST KLOS) and Key Laboratory for Oral Biomedical Engineering of Ministry of Education (KLOBME), School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - H Liu
- 1 The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST KLOS) and Key Laboratory for Oral Biomedical Engineering of Ministry of Education (KLOBME), School and Hospital of Stomatology, Wuhan University, Wuhan, China.,2 Department of Periodontology, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - H L Sun
- 1 The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST KLOS) and Key Laboratory for Oral Biomedical Engineering of Ministry of Education (KLOBME), School and Hospital of Stomatology, Wuhan University, Wuhan, China.,2 Department of Periodontology, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - J B Xiang
- 1 The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST KLOS) and Key Laboratory for Oral Biomedical Engineering of Ministry of Education (KLOBME), School and Hospital of Stomatology, Wuhan University, Wuhan, China.,2 Department of Periodontology, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - X X Wang
- 1 The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST KLOS) and Key Laboratory for Oral Biomedical Engineering of Ministry of Education (KLOBME), School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - C X Jiang
- 1 The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST KLOS) and Key Laboratory for Oral Biomedical Engineering of Ministry of Education (KLOBME), School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - L Ma
- 1 The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST KLOS) and Key Laboratory for Oral Biomedical Engineering of Ministry of Education (KLOBME), School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Z G Cao
- 1 The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST KLOS) and Key Laboratory for Oral Biomedical Engineering of Ministry of Education (KLOBME), School and Hospital of Stomatology, Wuhan University, Wuhan, China.,2 Department of Periodontology, School and Hospital of Stomatology, Wuhan University, Wuhan, China
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Zhang LS, Liu C, Ma H, Dai Q, Sun HL, Luo G, Zhang Z, Zhang L, Hu L, Dong X, He C. Transcriptome-wide Mapping of Internal N 7-Methylguanosine Methylome in Mammalian mRNA. Mol Cell 2019; 74:1304-1316.e8. [PMID: 31031084 DOI: 10.1016/j.molcel.2019.03.036] [Citation(s) in RCA: 238] [Impact Index Per Article: 47.6] [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: 04/21/2018] [Revised: 02/26/2019] [Accepted: 03/27/2019] [Indexed: 01/05/2023]
Abstract
N7-methylguanosine (m7G) is a positively charged, essential modification at the 5' cap of eukaryotic mRNA, regulating mRNA export, translation, and splicing. m7G also occurs internally within tRNA and rRNA, but its existence and distribution within eukaryotic mRNA remain to be investigated. Here, we show the presence of internal m7G sites within mammalian mRNA. We then performed transcriptome-wide profiling of internal m7G methylome using m7G-MeRIP sequencing (MeRIP-seq). To map this modification at base resolution, we developed a chemical-assisted sequencing approach that selectively converts internal m7G sites into abasic sites, inducing misincorporation at these sites during reverse transcription. This base-resolution m7G-seq enabled transcriptome-wide mapping of m7G in human tRNA and mRNA, revealing distribution features of the internal m7G methylome in human cells. We also identified METTL1 as a methyltransferase that installs a subset of m7G within mRNA and showed that internal m7G methylation could affect mRNA translation.
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Affiliation(s)
- Li-Sheng Zhang
- Department of Chemistry, Department of Biochemistry and Molecular Biology, and Institute for Biophysical Dynamics, The University of Chicago, Chicago, IL 60637, USA; Howard Hughes Medical Institute, The University of Chicago, Chicago, IL 60637, USA
| | - Chang Liu
- Department of Chemistry, Department of Biochemistry and Molecular Biology, and Institute for Biophysical Dynamics, The University of Chicago, Chicago, IL 60637, USA; Howard Hughes Medical Institute, The University of Chicago, Chicago, IL 60637, USA
| | - Honghui Ma
- Liver Cancer Institute, Zhongshan Hospital, Fudan University, Shanghai 200032, China; Institute of Biomedical Sciences, Fudan University, Shanghai 200032, China
| | - Qing Dai
- Department of Chemistry, Department of Biochemistry and Molecular Biology, and Institute for Biophysical Dynamics, The University of Chicago, Chicago, IL 60637, USA; Howard Hughes Medical Institute, The University of Chicago, Chicago, IL 60637, USA
| | - Hui-Lung Sun
- Department of Chemistry, Department of Biochemistry and Molecular Biology, and Institute for Biophysical Dynamics, The University of Chicago, Chicago, IL 60637, USA; Howard Hughes Medical Institute, The University of Chicago, Chicago, IL 60637, USA
| | - Guanzheng Luo
- The State Key Laboratory of Biocontrol, MOE Key Laboratory of Gene Function and Regulation, School of Life Sciences, Sun Yat-sen University, Guangzhou 510060, China
| | - Zijie Zhang
- Department of Chemistry, Department of Biochemistry and Molecular Biology, and Institute for Biophysical Dynamics, The University of Chicago, Chicago, IL 60637, USA; Howard Hughes Medical Institute, The University of Chicago, Chicago, IL 60637, USA
| | - Linda Zhang
- Department of Chemistry, Department of Biochemistry and Molecular Biology, and Institute for Biophysical Dynamics, The University of Chicago, Chicago, IL 60637, USA; Howard Hughes Medical Institute, The University of Chicago, Chicago, IL 60637, USA
| | - Lulu Hu
- Department of Chemistry, Department of Biochemistry and Molecular Biology, and Institute for Biophysical Dynamics, The University of Chicago, Chicago, IL 60637, USA; Howard Hughes Medical Institute, The University of Chicago, Chicago, IL 60637, USA
| | - Xueyang Dong
- College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Chuan He
- Department of Chemistry, Department of Biochemistry and Molecular Biology, and Institute for Biophysical Dynamics, The University of Chicago, Chicago, IL 60637, USA; Howard Hughes Medical Institute, The University of Chicago, Chicago, IL 60637, USA.
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Li JY, Sun HL, Ye ZD, Fan XQ, Liu P. [Carotid plaque composition and volume evaluated by multi-detector computed tomography angiography]. Beijing Da Xue Xue Bao Yi Xue Ban 2018; 50:833-839. [PMID: 30337744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
OBJECTIVE To evaluate the differences of plaquecomposition and volume between symptomatic and asymptomatic patients with carotid artery stenosis by multi-detector computed tomography angiography (MDCTA). METHODS The consecutive patients with internal carotid artery stenosis≥70% diagnosed by digital subtraction angiography (DSA) were retrospectively analyzed from July 2011 to December 2015 in Peking University China-Japan Friendship School of Clinical Medicine. The symptomatic patients were defined as those who experienced nondisabling ischemic stroke or transient cerebralis chemic symptoms, including hemispheric events oramaurosis fugaxin the last 6 months. Otherwise, the patients were considered as a symptomatic. A total of 78 patients were enrolled in the study. Of these patients, there were 35 asymptomatic patients (44.9%) and 43 symptomatic patients (55.1%). All the patients received MDCTA before DSA. According to the plaque analysis of post processing work station, carotid plaques were divided into lipid-rich necrotic coreplaques (HU≤60), fibrous plaques (60 to 130 HU) and calcified plaques (HU≥130) through the different value sthreshold of HU. The plaque volume and proportion were all calculated. The differences between the two groups were compared by statistical methods. RESULTS The proportion of calcified plaques in asymptomatic patients was significantly higher than in symptomatic patients (t=2.760, P=0.007).And the proportion of LRNC plaqueswas lower than that in symptomatic patients (Z=2.009, P=0.044). There was statistical significance between the asymptomatic and symptomatic patients. Multivariate analysis showed that there was a positive correlation between the proportion of calcified plaques and asymptomatic carotid artery stenosis (OR=0.949; 95%CI: 0.915 to 0.985; P=0.005). The proportion of LRNC plaques showed a negative correlation with asymptomatic carotid artery stenosis (OR=1.068; 95%CI: 1.021 to 1.117; P=0.004). For the symptomatic patients, when the LRNC plaque proportion was greater than 30.3%, the specificity was 94.3%, and the sensitivity was 37.2%. There was no significant difference in plaque volume and fibrous plaque proportion in both groups. CONCLUSION Compared with symptomatic carotid plaques, the proportion of asymptomatic calcified plaques increased but the proportion of LRNC plaques decreased. Plaque LRNC 30.3% of the total volume may represent a clinically useful cutoff. For the patients with carotid artery stenosis, MDCTA may help noninvasively risk-stratify patients.
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Affiliation(s)
- J Y Li
- Department of Cardiovascular Surgery, Peking University China-Japan Friendship School of Clinical Medicine, Beijing 100029, China
| | - H L Sun
- Department of Radiology, Peking University China-Japan Friendship School of Clinical Medicine, Beijing 100029, China
| | - Z D Ye
- Department of Cardiovascular Surgery, Peking University China-Japan Friendship School of Clinical Medicine, Beijing 100029, China
| | - X Q Fan
- Department of Cardiovascular Surgery, Peking University China-Japan Friendship School of Clinical Medicine, Beijing 100029, China
| | - P Liu
- Department of Cardiovascular Surgery, Peking University China-Japan Friendship School of Clinical Medicine, Beijing 100029, China
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26
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Wang WD, Hou SN, Chen D, Jiang XY, Ni JY, Chen YT, Sun HL, Luo JH, Xu LF. [Analysis of curative and prognostic effects of combined therapy of transarterial chemoembolization and sorafenib in hepatocellular carcinoma]. Zhonghua Gan Zang Bing Za Zhi 2018; 26:690-693. [PMID: 30481868 DOI: 10.3760/cma.j.issn.1007-3418.2018.09.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Affiliation(s)
- W D Wang
- Department of Interventional Radiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China
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Abstract
N6-methyladenosine (m6A) epitranscriptional modification has recently gained much attention. Through the development of m6A sequencing, the molecular mechanism and importance of m6A have been revealed. m6A is the most abundant internal modification in higher eukaryotic mRNAs, which plays crucial roles in mRNA metabolism and multiple biological processes. In this review, we introduce the characteristics of m6A regulators, including “writers” that create m6A mark, “erasers” that show demethylation activity and “readers” that decode m6A modification to govern the fate of modified transcripts. Moreover, we highlight the roles of m6A modification in several common cancers, including solid and non-solid tumors. The regulators of m6A exert enormous functions in cancer development, such as proliferation, migration and invasion. Especially, with the underlying mechanisms being uncovered, m6A and its regulators are expected to be the targets for the diagnosis and treatment of cancers.
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Affiliation(s)
- Zhen-Xian Liu
- Center for Gene Diagnosis, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Li-Man Li
- Center for Gene Diagnosis, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Hui-Lung Sun
- Department of Chemistry and Institute for Biophysical Dynamics, Howard Hughes Medical Institute, University of Chicago, Chicago, IL, United States
| | - Song-Mei Liu
- Center for Gene Diagnosis, Zhongnan Hospital of Wuhan University, Wuhan, China
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28
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Sun HL, Cui SL, Liu L, Meng C, Jiang HQ, Zhang XJ, Wang JW. [Clinical and immunological characteristics and predicted factors of vision outcome in patients with acute severe bilateral optic neuritis]. Zhonghua Yi Xue Za Zhi 2018; 98:1674-1678. [PMID: 29925145 DOI: 10.3760/cma.j.issn.0376-2491.2018.21.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To analyze the clinical and immunological characteristics of acute severe bilateral optic neuritis, and to explore the predictive factors of vision outcome and relapse so as to save visual function and avoid or alleviate vision disability. Methods: Forty-eight inpatients confirmed with acute severe bilateral optic neuritis from January 2013 to June 2015 were included and followed up. The clinical features, immunological findings, optic nerve imaging, visual function outcome and predictors of relapse were statistically analyzed. Results: Acute severe bilateral optic neuritis accounted for 7.3% of the total number of optic neuritis in the same period. There were 35 cases (72.9%) with monophasic course, and 13 cases (27.1%) with recurrence or other central nervous system involvement during the follow-up period; 11 (22.9%) in 48 patients with positive AQP4-IgG; AQP4-IgG-positive patients had a higher recurrence rate (P<0.001) and poorer visual function prognosis (P=0.034) than antibody-negative patients; the baseline visual acuity (P=0.004), early treatment response (P=0.012) and number of involved optic nerve segments (P=0.016) were associated with end point visual function. Positive AQP4-IgG(OR 13.486, 95% CI 1.971-16.263)and combining with other autoimmune antibodies (OR 5.591, 95% CI 1.502-15.621)were independently associated with relapse. Conclusions: Acute severe bilateral optic neuritis is not unusual and may cause blindness or visual disability. The positive rate of AQP4-IgG and the recurrence rate of the disease are low in our study. The necessity for long-term immunotherapy requires individual consideration. The baseline visual acuity, involved segment number of optic nerve and response to early treatment are associated with prognosis of visual function. Patients with AQP4-IgG positive and other autoimmune antibodies are easy to relapse. Whether the antibody-negative bilateral optic neuritis is a heterogeneous disease and the relationship with classic NMO or NMOSD deserve further research.
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Affiliation(s)
- H L Sun
- Department of Neurology, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
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Tang XM, Liu C, Huang K, Zhu GT, Sun HL, Dai J, Tian JW. [Analysis of a three-dimensional finite element model of atlas and axis complex fracture]. Zhonghua Yi Xue Za Zhi 2018; 98:1484-1488. [PMID: 29804415 DOI: 10.3760/cma.j.issn.0376-2491.2018.19.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explored the clinical application of the three-dimensional finite element model of atlantoaxial complex fracture. Methods: A three-dimensional finite element model of cervical spine (FEM/intact) was established by software of Abaqus6.12.On the basis of this model, a three-dimensional finite element model of four types of atlantoaxial complex fracture was established: C(1) fracture (Jefferson)+ C(2) fracture (type Ⅱfracture), Jefferson+ C(2) fracture(type Ⅲfracture), Jefferson+ C(2) fracture(Hangman), Jefferson+ stable C(2) fracture (FEM/fracture). The range of motion under flexion, extension, lateral bending and axial rotation were measured and compared with the model of cervical spine. Results: The three-dimensional finite element model of four types of atlantoaxial complex fracture had the same similarity and profile.The range of motion (ROM) of different segments had different changes.Compared with those in the normal model, the ROM of C(0/1) and C(1/2) in C(1) combined Ⅱ odontoid fracture model in flexion/extension, lateral bending and rotation increased by 57.45%, 29.34%, 48.09% and 95.49%, 88.52%, 36.71%, respectively.The ROM of C(0/1) and C(1/2) in C(1) combined Ⅲodontoid fracture model in flexion/extension, lateral bending and rotation increased by 47.01%, 27.30%, 45.31% and 90.38%, 27.30%, 30.0%.The ROM of C(0/1) and C(1/2) in C(1) combined Hangman fracture model in flexion/extension, lateral bending and rotation increased by 32.68%, 79.34%, 77.62% and 60.53%, 81.20%, 21.48%, respectively.The ROM of C(0/1) and C(1/2) in C(1) combined axis fracture model in flexion/extension, lateral bending and rotation increased by 15.00%, 29.30%, 8.47% and 37.87%, 75.57%, 8.30%, respectively. Conclusions: The three-dimensional finite element model can be used to simulate the biomechanics of atlantoaxial complex fracture.The ROM of atlantoaxial complex fracture is larger than nomal model, which indicates that surgical treatment should be performed.
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Affiliation(s)
- X M Tang
- Department of Orthopedics, Shanghai First People's Hospital, Shanghai 200080, China
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Liu H, Yue L, Chen SL, Hu B, Li CD, Yi XD, Li H, Lu HL, Wang Y, Yu ZR, Sun HL, Wang SJ, Zhao Y, Qi LT, Wang R. [Anterior cervical discectomy and fusion to treat cervical spondylosis with sympathetic symptoms]. Beijing Da Xue Xue Bao Yi Xue Ban 2018; 50:347-351. [PMID: 29643538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
OBJECTIVE To investigate the clinical effectiveness of polytheretherketone (PEEK) cages assisted anterior cervical discetomy and fusion (ACDF) to treat cervical spondylosis with sympathetic symptoms. METHODS Retrospective analysis was undertaken for 39 patients who were diagnosed as cervical spondylosis with sympathetic symptoms and underwent ACDF with PEEK cages. Radiographs obtained before surgery, after surgery, and at the final follow-up were assessed for quality of fusion. The following criteria were used for assessing radiographic success of fusion: (1) endplate obliterated with no lucent lines; (2) obliteration of disc space by bony trabeculae; (3) less than 2°of intervertebral motion or 2 mm of motion between the spinous processes at the operated segment on flexion-extension lateral radiographs. The sympathetic symptoms including vertigo, headache, tinnitus, nausea and vomiting, heart throb, hypomnesia and gastroenterological discomfort were scored by 20-point system preoperatively, 2 months postoperatively and at the final follow-up. The recovery rate and clinical satisfaction rate were also evaluated. Surgical complications were also assessed. RESULTS They were followed up for at least one year. The mean follow-up was 15.6 months. Radiographs of the cervical spine at the last follow-up revealed a solid fusion with no signs of a pseudoarthrosis in 36 cases. In two patients delayed union and bony fusion were achieved at the end of 9 and 11 months. Pseudoarthosis was found in 1 case but the patient had no symptoms. The score of sympathetic symptoms before surgery, 2 months after surgery and at the final follow-up were 8.4±1.0,2.2±0.3,and 2.4±0.3, respectively. There were 22 excellent cases, 15 good cases, 1 fair case and 1 bad case in terms of RR. Good to excellent results were attained in 95% of theses patients. The sympathetic symptoms improved in all the patients and the score was significantly improved after surgery. There was one patient who had cerebral spinal fluid leakage but he recovered one week after surgery. Two patients felt a mild swallowing discomfort, but it disappeared within one month after surgery. Subcutaneous hematoma occurred in one patient due to obstructed drainage. It was cleared two days after surgery. CONCLUSION Cervical spondylosis patients with sympathetic symptoms may be managed successfully with ACDF using PEEK cages. Successful clinical results regarding symptom improvement and general satisfaction with the surgical procedure depend not only on obtaining successful decompression and radiographic fusion but also on patient selection.
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Affiliation(s)
- H Liu
- Department of Orthopaedic Surgery, Peking University First Hospital, Beijing 100034, China
| | - L Yue
- Department of Orthopaedic Surgery, Peking University First Hospital, Beijing 100034, China
| | - S L Chen
- Department of Orthopaedic Surgery, Peking University First Hospital, Beijing 100034, China
| | - B Hu
- Department of Orthopaedic Surgery, Peking University First Hospital, Beijing 100034, China
| | - C D Li
- Department of Orthopaedic Surgery, Peking University First Hospital, Beijing 100034, China
| | - X D Yi
- Department of Orthopaedic Surgery, Peking University First Hospital, Beijing 100034, China
| | - H Li
- Department of Orthopaedic Surgery, Peking University First Hospital, Beijing 100034, China
| | - H L Lu
- Department of Orthopaedic Surgery, Peking University First Hospital, Beijing 100034, China
| | - Y Wang
- Department of Orthopaedic Surgery, Peking University First Hospital, Beijing 100034, China
| | - Z R Yu
- Department of Orthopaedic Surgery, Peking University First Hospital, Beijing 100034, China
| | - H L Sun
- Department of Orthopaedic Surgery, Peking University First Hospital, Beijing 100034, China
| | - S J Wang
- Department of Orthopaedic Surgery, Peking University First Hospital, Beijing 100034, China
| | - Y Zhao
- Department of Orthopaedic Surgery, Peking University First Hospital, Beijing 100034, China
| | - L T Qi
- Department of Orthopaedic Surgery, Peking University First Hospital, Beijing 100034, China
| | - R Wang
- Department of Orthopaedic Surgery, Peking University First Hospital, Beijing 100034, China
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Li J, Pu W, Sun HL, Zhou JK, Fan X, Zheng Y, He J, Liu X, Xia Z, Liu L, Wei YQ, Peng Y. Pin1 impairs microRNA biogenesis by mediating conformation change of XPO5 in hepatocellular carcinoma. Cell Death Differ 2018; 25:1612-1624. [PMID: 29445125 DOI: 10.1038/s41418-018-0065-z] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Revised: 12/18/2017] [Accepted: 01/11/2018] [Indexed: 02/05/2023] Open
Abstract
MicroRNA (miRNA) dysregulation is associated with the tumorigenesis and development of numerous human cancers. The defect in miRNA biogenesis is the main cause of miRNA dysregulation. We previously demonstrated that ERK-induced phosphorylation of XPO5 followed by peptidyl-prolyl cis/trans isomerase Pin1-mediated isomerization downregulates miRNA expression and contributes to hepatocellular carcinoma (HCC) development. However, how Pin1 precisely regulates miRNA biogenesis in HCC remains elusive. Here we reveal that Pin1 has a pivotal role in the miRNA maturation process by modulating phosphorylated Serine-Proline (pS-P) motif of XPO5 in a phosphorylation-dependent manner. By recognizing and binding to XPO5 via its WW domain, Pin1 catalyzes the conformation change of XPO5 and diminishes XPO5 ability to export pre-miRNAs from the nucleus to the cytoplasm, resulting in the reduced mature miRNA levels and promoted HCC development. Furthermore, downregulation of Pin1 by shRNA restores XPO5-dependent pre-miRNA export and effective biogenesis of mature miRNAs, leading to both in vitro and in vivo HCC inhibition. Therefore, our research discloses a new posttranscriptional regulatory mechanism of miRNA biosynthesis and provides the experimental basis for a novel HCC therapy by targeting Pin1.
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Affiliation(s)
- Jiao Li
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, 610041, China
| | - Wenchen Pu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, 610041, China
| | - Hui-Lung Sun
- Department of Chemistry and Institute for Biophysical Dynamics, Howard Hughes Medical Institute, The University of Chicago, Chicago, IL, 60637, USA
| | - Jian-Kang Zhou
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, 610041, China
| | - Xin Fan
- College of Life Sciences, Sichuan University, Chengdu, 610041, China
| | - Yuanyuan Zheng
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, 610041, China
| | - Juan He
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, 610041, China
| | - Xuesha Liu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, 610041, China
| | - Zhichu Xia
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, 610041, China
| | - Lunxu Liu
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Yu-Quan Wei
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, 610041, China
| | - Yong Peng
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, 610041, China. .,Department of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu, 610041, China.
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32
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Lai HH, Li JN, Wang MY, Huang HY, Croce CM, Sun HL, Lyu YJ, Kang JW, Chiu CF, Hung MC, Suzuki HI, Chen PS. HIF-1α promotes autophagic proteolysis of Dicer and enhances tumor metastasis. J Clin Invest 2017; 128:625-643. [PMID: 29251629 DOI: 10.1172/jci89212] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [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: 09/07/2016] [Accepted: 10/17/2017] [Indexed: 12/24/2022] Open
Abstract
HIF-1α, one of the most extensively studied oncogenes, is activated by a variety of microenvironmental factors. The resulting biological effects are thought to depend on its transcriptional activity. The RNAse enzyme Dicer is frequently downregulated in human cancers, which has been functionally linked to enhanced metastatic properties; however, current knowledge of the upstream mechanisms regulating Dicer is limited. In the present study, we identified Dicer as a HIF-1α-interacting protein in multiple types of cancer cell lines and different human tumors. HIF-1α downregulated Dicer expression by facilitating its ubiquitination by the E3 ligase Parkin, thereby enhancing autophagy-mediated degradation of Dicer, which further suppressed the maturation of known tumor suppressors, such as the microRNA let-7 and microRNA-200b. Consequently, expression of HIF-1α facilitated epithelial-mesenchymal transition (EMT) and metastasis in tumor-bearing mice. Thus, this study uncovered a connection between oncogenic HIF-1α and the tumor-suppressive Dicer. This function of HIF-1α is transcription independent and occurs through previously unrecognized protein interaction-mediated ubiquitination and autophagic proteolysis.
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Affiliation(s)
- Hui-Huang Lai
- Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University (NCKU), Tainan, Taiwan.,Department of Medical Laboratory Science and Biotechnology, College of Medicine, NCKU, Tainan, Taiwan
| | - Jie-Ning Li
- Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University (NCKU), Tainan, Taiwan.,Department of Medical Laboratory Science and Biotechnology, College of Medicine, NCKU, Tainan, Taiwan
| | - Ming-Yang Wang
- Department of Surgery, National Taiwan University Hospital, Taipei, Taiwan
| | - Hsin-Yi Huang
- Department of Pathology, National Taiwan University Hospital, Taipei, Taiwan
| | - Carlo M Croce
- Department of Cancer Biology and Genetics, Wexner Medical Center, The Ohio State University, Columbus, Ohio, USA
| | - Hui-Lung Sun
- Department of Cancer Biology and Genetics, Wexner Medical Center, The Ohio State University, Columbus, Ohio, USA
| | - Yu-Jhen Lyu
- Department of Medical Laboratory Science and Biotechnology, College of Medicine, NCKU, Tainan, Taiwan
| | - Jui-Wen Kang
- Department of Internal Medicine, NCKU Hospital, Tainan, Taiwan
| | - Ching-Feng Chiu
- National Institute of Cancer Research, National Health Research Institutes, Miaoli, Taiwan
| | - Mien-Chie Hung
- Center for Molecular Medicine and Graduate Institute of Cancer Biology, China Medical University, Taichung, Taiwan.,Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Hiroshi I Suzuki
- David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
| | - Pai-Sheng Chen
- Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University (NCKU), Tainan, Taiwan.,Department of Medical Laboratory Science and Biotechnology, College of Medicine, NCKU, Tainan, Taiwan
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Zhang LY, Wang M, Wu HB, Yang Y, Li Q, Sun HL. [Enhancement of thermal damage to EpCAM-positive tumor cells by novel aptamer-guided magnetic nanoparticles]. Zhonghua Zhong Liu Za Zhi 2017; 39:726-731. [PMID: 29061014 DOI: 10.3760/cma.j.issn.0253-3766.2017.10.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the thermal damage to epithelial cell adhesion molecule(EpCAM)-positive tumor cells by novel aptamer-guided magnetic nanoparticles(AptNPs). Methods: EpCAM aptamer SYL3C was connected to NPs via biotin-streptavidin reaction. The diameter of AptNPs were characterized by Dynamic Light Scattering(DLS). The binding feature of the aptamer to EpCAM-positive tumor cells was evaluated by Prussian blue dyeing. Thermal damage under alternative magnetic field was measured bylactate dehydrogenase (LDH). The apoptosis of EpCAM-positive tumor cells was detected by acridine orange/ethidium bromide (AO/EB) double staining. Results: The average size of AptNPs was 282 nm. Flow cytometry and Prussian blue dyeing showed that AptNPs exhibited strong binding to the EpCAM-positive tumor cells but not to the EpCAM-negative tumor cells. Moreover, when incubated with 1.5×10(8) AptNPs under alternative electromagnetic fieldfor 5 hours, the viability of EpCAM-positive HCT116 cells and A549 cells was 28.9% and 54.4%, respectively, significantly lower than 76.7% of EpCAM-negative HepG2 cells (P<0.05). Conclusions: AptNPs can improve the thermal damage to EpCAM-positive tumor cells, and may have potential utility in the development of tumor targeted therapy.
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Affiliation(s)
- L Y Zhang
- Shanxi Institute of Pediatric Diseases, Xi'an Children's Hospital, Xi'an 710002, China
| | - M Wang
- Department of Orthopaedics, 11 Military Hospital of China, Yining 835000, China
| | - H B Wu
- Science and Education Division, Xi'an Children's Hospital, Xi'an 710002, China
| | - Y Yang
- Shanxi Institute of Pediatric Diseases, Xi'an Children's Hospital, Xi'an 710002, China
| | - Q Li
- Clinical Laboratory, Xi'an Children's Hospital, Xi'an 710002, China
| | - H L Sun
- Shanxi Institute of Pediatric Diseases, Xi'an Children's Hospital, Xi'an 710002, China
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34
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Luna JM, Barajas JM, Teng KY, Sun HL, Moore MJ, Rice CM, Darnell RB, Ghoshal K. Argonaute CLIP Defines a Deregulated miR-122-Bound Transcriptome that Correlates with Patient Survival in Human Liver Cancer. Mol Cell 2017; 67:400-410.e7. [PMID: 28735896 PMCID: PMC5603316 DOI: 10.1016/j.molcel.2017.06.025] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Revised: 05/11/2017] [Accepted: 06/20/2017] [Indexed: 12/13/2022]
Abstract
MicroRNA-122, an abundant and conserved liver-specific miRNA, regulates hepatic metabolism and functions as a tumor suppressor, yet systematic and direct biochemical elucidation of the miR-122 target network remains incomplete. To this end, we performed Argonaute crosslinking immunoprecipitation (Argonaute [Ago]-CLIP) sequencing in miR-122 knockout and control mouse livers, as well as in matched human hepatocellular carcinoma (HCC) and benign liver tissue to identify miRNA target sites transcriptome-wide in two species. We observed a majority of miR-122 binding on 3' UTRs and coding exons followed by extensive binding to other genic and non-genic sites. Motif analysis of miR-122-dependent binding revealed a G-bulged motif in addition to canonical motifs. A large number of miR-122 targets were found to be species specific. Upregulation of several common mouse and human targets, most notably BCL9, predicted survival in HCC patients. These results broadly define the molecular consequences of miR-122 downregulation in hepatocellular carcinoma.
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Affiliation(s)
- Joseph M Luna
- Laboratory of Virology and Infectious Disease, Center for the Study of Hepatitis C, The Rockefeller University, New York, NY 10065, USA; Laboratory of Molecular Neuro-Oncology and Howard Hughes Medical Institute, The Rockefeller University, New York, NY 10065, USA
| | - Juan M Barajas
- Department of Pathology, Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, USA
| | - Kun-Yu Teng
- Department of Pathology, Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, USA
| | - Hui-Lung Sun
- Department of Biochemistry and Molecular Biology and Institute for Biophysical Dynamics, Howard Hughes Medical Institute, University of Chicago, Chicago, IL 60637, USA
| | - Michael J Moore
- Laboratory of Molecular Neuro-Oncology and Howard Hughes Medical Institute, The Rockefeller University, New York, NY 10065, USA
| | - Charles M Rice
- Laboratory of Virology and Infectious Disease, Center for the Study of Hepatitis C, The Rockefeller University, New York, NY 10065, USA
| | - Robert B Darnell
- Laboratory of Molecular Neuro-Oncology and Howard Hughes Medical Institute, The Rockefeller University, New York, NY 10065, USA.
| | - Kalpana Ghoshal
- Department of Pathology, Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, USA.
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35
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Chuang CY, Sun HL, Ku MS. Allergic rhinitis, rather than asthma, is a risk factor for dental caries. Clin Otolaryngol 2017; 43:131-136. [PMID: 28585768 DOI: 10.1111/coa.12912] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/24/2017] [Indexed: 01/08/2023]
Abstract
OBJECTIVES The association between AS (asthma) and dental caries is controversial, while that between allergic rhinitis (AR) and caries has not been established. This study aimed to verify the relationship among AR, AS and dental caries. DESIGN Retrospective cohort study. SETTING Data from Health Insurance Database of the Taiwan's National Health Insurance Research Database. PARTICIPANTS Nine thousand and thirty-eight children born in 2004 were obtained. Their claims data were evaluated from birth to the age of 9 years. MAIN OUTCOME MEASURES The frequencies of clinical visits for dental caries were calculated for primary teeth (age 1-5) and for dental transitional period (age 6-9). Differences in the frequencies of clinical visits for caries in AR vs non-AR and AS vs non-AS children were compared. Correlation between AR, AS and caries frequencies was studied, and the influences of AR drugs on the development of caries were evaluated. RESULTS After adjusting for confounding factors and AS case, the frequencies of clinical visits for caries were higher in AR (increased by 13%-25% and P<.001 at different age periods). The AR frequencies significantly correlated with caries frequencies in children with AR. Different AR drugs also correlated with caries formation. After adjusting for confounding factors and AR case, there was no relationship between AS and caries in children. CONCLUSION Asthma is not associated with dental caries, but AR can increase the frequency of clinical visits for caries. Medications for AR may also play a role in caries formation. Thus, AR may be a risk factor for childhood dental caries.
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Affiliation(s)
- C Y Chuang
- School of Medicine, Chung Shan Medical University, Taichung, Taiwan.,Department of Otolaryngology, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - H L Sun
- School of Medicine, Chung Shan Medical University, Taichung, Taiwan.,Division of Allergy, Asthma and Rheumatology, Department of pediatrics, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - M S Ku
- School of Medicine, Chung Shan Medical University, Taichung, Taiwan.,Division of Allergy, Asthma and Rheumatology, Department of pediatrics, Chung Shan Medical University Hospital, Taichung, Taiwan
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Yu ZR, Li CD, Zhu SN, Sun HL, Zhao Y, Qi LT. [Efficacy of transforaminal endoscopic nerve root decompression in the treatment of degenerative lumbar spinal stenosis]. Beijing Da Xue Xue Bao Yi Xue Ban 2017; 49:252-255. [PMID: 28416834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
OBJECTIVE To evaluate the feasibility of transforaminal endoscopic nerve root decompression for degenerative lumbar spinal stenosis (DLSS). METHODS From July 2011 to April 2016, 96 cases of single segment DLSS were involved. All the patients had unilateral lower extremity neurological symptoms, signs, neurogenic intermittent claudication of less than 500 m. Imaging examinations (CT or MRI) or diagnostic nerve root block confirmed single segment degeneration. The mean age was (71.6±5.4) years, male: 55 cases, female: 41 cases. Their intraoperative blood loss, operation time, complications, ambulation time and discharge time were recorded. Leg pain VAS, ODI were used to evaluate the pain and lumbar function of the patients. The clinical efficacy was evaluated by Nakai evaluation. RESULTS All the patients were performed endoscopic decompression of the lateral recess and nerve root by removing the ventral part of the superior facet joint, the ligamentum flavum and the intervertebral disc. The decompression range was from the inferior edge of the upper pedicle to the superior edge of the lower pedicle. The nerve root was detected to have no compression and the pulse of nerve root returned to normal. The patient got ambulant on the operation day and discharged if he had no discomfort symptom. In the study, 68 cases got follow up. The mean follow-up time was 12.1 months (6-63 months). The VAS at different follow-up time points was improved relative to the baseline, and the difference was statistically significant (F=491.60, P<0.001). The ODI at different follow-up time points was improved relative to the baseline, and the difference was statistically significant (F=189.91, P<0.001). The excellent and good rates of Nakai evaluation were 79.4% (excellent in 42 cases, good in 12 cases, fair in 10 cases and poor in 4 cases). The mean intraoperative blood loss was (49.29±11.86) mL. The mean operation time was (92.46±21.34) min. The mean ambulation time was 1.8 h. The mean discharge time was 2.3 days. Postoperative epidural hematoma was found in 1 case. Foot drop was found in 1 case. Second stage open surgery was performed in 6 cases. CONCLUSION We can apply transforaminal endoscopic decompression for the patients of lumbar spinal stenosis who have unilateral nerve root irritation. Patients with transforaminal endoscopic decompression can get less surgical trauma, quick recovery and obtain good short-term outcome.
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Affiliation(s)
- Z R Yu
- Department of Orthopedics, Peking University First Hospital, Beijing 100034, China
| | - C D Li
- Department of Orthopedics, Peking University First Hospital, Beijing 100034, China
| | - S N Zhu
- Department of Medical Statistics, Peking University First Hospital, Beijing 100034, China
| | - H L Sun
- Department of Orthopedics, Peking University First Hospital, Beijing 100034, China
| | - Y Zhao
- Department of Orthopedics, Peking University First Hospital, Beijing 100034, China
| | - L T Qi
- Department of Orthopedics, Peking University First Hospital, Beijing 100034, China
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Sun HL, Li CD, Li XW, Yi XD, Liu H, Lu HL, Li H, Yu ZR, Wang Y. [Polymethylmethacrylate augmentation of bone cement injectable cannulated pedicle screws was used to treat degenerative lumbar scoliosis with osteoporosis]. Beijing Da Xue Xue Bao Yi Xue Ban 2017; 49:256-261. [PMID: 28416835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
OBJECTIVE To describe the application of polymethylmethacrylate (PMMA) augmentation of cement-injectable cannulated pedicle screws for the treatment of degenerative lumbar scoliosis with osteoporosis. METHODS Retrospective cohort study was used to compare cement injectable cannulated pedicle screws (CICPs) group with PMMA augmentation and control group with traditional method in the correction surgery for Lenke-silva level III and level IV degenerative scoliosis cases with osteoporosis. Both groups were followed up for 1 year. The clinical results were assessed by visual analog scale (VAS) of pain on lumbar and lower limbers, Oswestry disability index (ODI) score and EuroQol-5 dimensions (EQ-5D) score. The coronal major curve Cobb angel in coronal plane and thoracic kyphosis Cobb angle, lumbar lordosis Cobb angle and sagittal vertical axis (SVA) in sagittal plane were tested in whole long spine X ray. The fusion rates were evaluated by lumbar X ray and dynamic X ray. RESULTS In this study 34 cases were enrolled, 15 cases in CICPs group and 19 cases in control group. The general characteristics including age, gender, weight, height, BMI and BMD were without statistical difference between the two groups. There were (5.7±2.2)PMMA augmentation screws in CICPs group. The operation time, blood loss and blood transfusion were higher in CICPs group than in control group, but without statistical difference. Lumbar VAS, lower limbers VAS, ODI score and EQ-5D were all better in 1 month postoperation, 6 months postoperation and 1 year postoperation than in preoperation in both groups. lumbar VAS scores of CICPs group in 6 months postoperation (CICPs group 3.1±1.3 vs. control group 4.4±1.4, P<0.01) together with lumbar VAS scores (CICPs group 3.3±1.0 vs. control group 5.2±1.4, P<0.01), ODI scores (CICPs group 22.7±17.2 vs. control group 31.4±18.5, P<0.01) and EQ-5D in 1 year postoperation (CICPs group 2.9±2.0 vs. control group 3.5±2.5, P<0.01)were lower than those of control group. The coronal major curve Cobb angels were all lower in 1 month postoperation, 6 months postoperation and 1 year postoperation than in preoperation in both groups; thoracic kyphosis Cobb angle and lumbar lordosis Cobb angle were all higher in 1 month postoperation, 6 months postoperation and 1 year postoperation than in preoperation in both groups. The coronal major curve Cobb angel was lower in CICPs group than that in control group in 1 year postoperation (CICPs group 17.6°±6.9° vs. control group 21.2°±7.2°, P<0.01)and thoracic kyphosis Cobb angle was higher in CICPs group than that in control group in 6 months postoperation (CICPs group -33.5°±8.8 ° vs. control group -28.9°±8.3°, P<0.01) and 1 year postoperation (CICPs group -33.0°±8.1° vs. control group -26.3°±7.4°, P<0.01) together with lumbar lordosis Cobb angle were higher in CICPs group than that in control group in 1 year postoperation (CICPs group 26.4°±8.1° vs. control group 22.1°±7.3°, P<0.01). CONCLUSION Polymethylmethacrylate augmentation of bone cement-injectable cannulated pedicle screws for the treatment of degenerative lumbar scoliosis with osteoporosis was effective and safe, the short-term clinical result was good.
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Affiliation(s)
- H L Sun
- Department of Orthopedics, Peking University First Hospital, Beijing 100034, China
| | - C D Li
- Department of Orthopedics, Peking University First Hospital, Beijing 100034, China
| | - X W Li
- Department of Orthopedics, Peking University First Hospital, Beijing 100034, China
| | - X D Yi
- Department of Orthopedics, Peking University First Hospital, Beijing 100034, China
| | - H Liu
- Department of Orthopedics, Peking University First Hospital, Beijing 100034, China
| | - H L Lu
- Department of Orthopedics, Peking University First Hospital, Beijing 100034, China
| | - H Li
- Department of Orthopedics, Peking University First Hospital, Beijing 100034, China
| | - Z R Yu
- Department of Orthopedics, Peking University First Hospital, Beijing 100034, China
| | - Y Wang
- Department of Orthopedics, Peking University First Hospital, Beijing 100034, China
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Chen CT, Chen YC, Du Y, Han Z, Ying H, Bouchard RR, Hsu JL, Hsu JM, Mitcham TM, Chen MK, Sun HL, Chang SS, Li D, Chang P, DePinho RA, Hung MC. A tumor vessel-targeting fusion protein elicits a chemotherapeutic bystander effect in pancreatic ductal adenocarcinoma. Am J Cancer Res 2017; 7:657-672. [PMID: 28401019 PMCID: PMC5385650] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Accepted: 04/15/2016] [Indexed: 06/07/2023] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is a highly lethal disease characterized by a prominent desmoplastic stroma that may constrain tumor progression but also limit the access of therapeutic drugs. In this study, we explored a tumor-targeting strategy that enlists an engineered anti-angiogenic protein consisting of endostatin and cytosine deaminase linked to uracil phosphoribosyltransferase (EndoCD). This protein selectively binds to tumor vessels to compromise tumor angiogenesis and converts the non-toxic 5-fluorocytosine (5-FC) to the cytotoxic 5-fluorouracil to produce a chemotherapeutic bystander effect at the pancreatic tumor site. We found that resveratrol increased the protein stability of EndoCD through suppression of chymotrypsin-like proteinase activity and synergistically enhances EndoCD-mediated 5-FC-induced cell killing. In various PDAC mouse models, the EndoCD/5-FC/resveratrol regimen decreased intratumoral vascular density and stroma formation and enhances apoptosis in tumors cells as well as in surrounding endothelial, pancreatic stellate, and immune cells, leading to reduced tumor growth and extended survival. Thus, the EndoCD/5-FC/resveratrol combination may be an effective treatment option for PDAC.
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Affiliation(s)
- Chun-Te Chen
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer CenterHouston, Texas 77030, USA
| | - Yi-Chun Chen
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer CenterHouston, Texas 77030, USA
| | - Yi Du
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer CenterHouston, Texas 77030, USA
| | - Zhenbo Han
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer CenterHouston, Texas 77030, USA
| | - Haoqiang Ying
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer CenterHouston, Texas 77030, USA
- Department of Cancer Biology, The University of Texas MD Anderson Cancer CenterHouston, Texas 77030, USA
- Graduate School of Biomedical Sciences, The University of Texas Houston Health Science CenterHouston, Texas 77030, USA
| | - Richard R Bouchard
- Department of Imaging Physics, The University of Texas MD Anderson Cancer CenterHouston, Texas 77030, USA
- Graduate School of Biomedical Sciences, The University of Texas Houston Health Science CenterHouston, Texas 77030, USA
| | - Jennifer L Hsu
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer CenterHouston, Texas 77030, USA
- Center for Molecular Medicine and Graduate Institute of Cancer Biology, China Medical UniversityTaichung 404, Taiwan
- Department of Biotechnology, Asia UniversityTaichung 413, Taiwan
| | - Jung-Mao Hsu
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer CenterHouston, Texas 77030, USA
| | - Trevor M Mitcham
- Department of Imaging Physics, The University of Texas MD Anderson Cancer CenterHouston, Texas 77030, USA
| | - Mei-Kuang Chen
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer CenterHouston, Texas 77030, USA
- Graduate School of Biomedical Sciences, The University of Texas Houston Health Science CenterHouston, Texas 77030, USA
| | - Hui-Lung Sun
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer CenterHouston, Texas 77030, USA
| | - Shih-Shin Chang
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer CenterHouston, Texas 77030, USA
- Graduate School of Biomedical Sciences, The University of Texas Houston Health Science CenterHouston, Texas 77030, USA
| | - Donghui Li
- Department of Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer CenterHouston, Texas 77030, USA
| | - Ping Chang
- Department of Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer CenterHouston, Texas 77030, USA
| | - Ronald A DePinho
- Department of Cancer Biology, The University of Texas MD Anderson Cancer CenterHouston, Texas 77030, USA
- Graduate School of Biomedical Sciences, The University of Texas Houston Health Science CenterHouston, Texas 77030, USA
| | - Mien-Chie Hung
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer CenterHouston, Texas 77030, USA
- Graduate School of Biomedical Sciences, The University of Texas Houston Health Science CenterHouston, Texas 77030, USA
- Center for Molecular Medicine and Graduate Institute of Cancer Biology, China Medical UniversityTaichung 404, Taiwan
- Department of Biotechnology, Asia UniversityTaichung 413, Taiwan
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Sun HL, Li CD, Yang ZC, Yi XD, Liu H, Lu HL, Li H, Wang Y. [Polymethylmethacrylate augmentation of bone cement-injectable cannulated pedicle screws for the treatment of degenerative lumbar diseases with osteoporosis]. Beijing Da Xue Xue Bao Yi Xue Ban 2016; 48:1019-1025. [PMID: 27987507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 09/28/2022]
Abstract
OBJECTIVE To describe the application of polymethylmethacrylate augmentation of bone cement-injectable cannulated pedicle screws for the treatment of degenerative lumbar diseases with osteoporosis. METHODS Observation group included 14 cases of degenerative lumbar diseases with osteoporosis received polymethylmethacrylate augmentation of bone cement-injectable cannulated pedicle screws from November 2014 to July 2015, control group included 12 cases of degenerative lumbar diseases with osteoporosis received polymethylmethacrylate augmentation with traditional pedicle screws.The operation time, blood loss, number of pedicle screws and number of augmented pedicle screws in the two groups were compared. The bone cement leakage and pulmonary bone cement embolism in the two groups were also compared. The fusion rate and pedicle screws loosening by lumbar X ray and dynamic X ray were evaluated. The clinical results were assessed by visual analog scale (VAS) of pain on lumbar and lower limbers, lumbar Japanese Orthopaedic Association scores (JOA), Prolo functional scores and Oswestry disability (ODI) scores. RESULTS Differences of operation time and blood loss in the two groups were not statistically significant. The average number of pedicle screws was 9.9±4.7 and the average number of augmented pedicle screws was 5.9±2.6 in observation group while the average number of pedicle screws was 7.1±2.8 and the average number of augmented pedicle screws was 3.0±1.9 in control group. The ratio of augmented pedicle screws was higher in observation group than in control group (0.69±0.30 vs.0.47±0.30,P<0.05). The bone cement leakage rate was lower in observation group than in control group (5/83 vs. 12/42, P<0.01). All the cases in observation group were without leakage to the interspinal canal while one case in control group suffered from bone cement leakage to the interspinal canal with augmentation of 3 pedicle screws. The follow up period was (10.6±2.3) months in observation group and (36.5±7.2) months in control group. In final follow up, no case with non-fusion or pedicle screws loosening was found in both groups. Lumbar VAS, lower limbers VAS, lumbar JOA scores, Prolo functional scores and ODI scores were all better than pre-operation (P<0.01). CONCLUSION Polymethylmethacrylate augmentation of bone cement-injectable cannulated pedicle screws for the treatment of degenerative lumbar diseases with osteoporosis was effective, with simple working processes and lower risk of bone cement leakage. The short-term clinical result was good.
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Affiliation(s)
- H L Sun
- Department of Orthopedics, Peking University First Hospital, Beijing 100034,China
| | - C D Li
- Department of Orthopedics, Peking University First Hospital, Beijing 100034,China
| | - Z C Yang
- Department of Orthopedics, Peking University First Hospital, Beijing 100034,China
| | - X D Yi
- Department of Orthopedics, Peking University First Hospital, Beijing 100034,China
| | - H Liu
- Department of Orthopedics, Peking University First Hospital, Beijing 100034,China
| | - H L Lu
- Department of Orthopedics, Peking University First Hospital, Beijing 100034,China
| | - H Li
- Department of Orthopedics, Peking University First Hospital, Beijing 100034,China
| | - Y Wang
- Department of Orthopedics, Peking University First Hospital, Beijing 100034,China
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Sun HL, McIntosh K, Woo C, Crilly E, Bartholomew C, Gue D, De Marchi L, Squire S, Silva A, Yang M, Wu JK, Jackson S. Prevalence and predictors of loss to follow-up in young adults with mild haemophilia. Haemophilia 2016; 23:e36-e39. [PMID: 27928848 DOI: 10.1111/hae.13114] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/12/2016] [Indexed: 11/29/2022]
Affiliation(s)
- H L Sun
- Division of Hematology, Department of Medicine, University of British Columbia, Vancouver, BC, Canada.,British Columbia/Yukon Adult Hemophilia Program, Vancouver, BC, Canada
| | - K McIntosh
- British Columbia/Yukon Adult Hemophilia Program, Vancouver, BC, Canada
| | - C Woo
- British Columbia/Yukon Pediatric Hemophilia Program, Vancouver, BC, Canada.,University of British Columbia School of Nursing, Vancouver, BC, Canada
| | - E Crilly
- British Columbia/Yukon Pediatric Hemophilia Program, Vancouver, BC, Canada
| | - C Bartholomew
- British Columbia/Yukon Adult Hemophilia Program, Vancouver, BC, Canada
| | - D Gue
- British Columbia/Yukon Adult Hemophilia Program, Vancouver, BC, Canada
| | - L De Marchi
- British Columbia/Yukon Pediatric Hemophilia Program, Vancouver, BC, Canada
| | - S Squire
- British Columbia/Yukon Adult Hemophilia Program, Vancouver, BC, Canada
| | - A Silva
- British Columbia/Yukon Pediatric Hemophilia Program, Vancouver, BC, Canada
| | - M Yang
- British Columbia/Yukon Adult Hemophilia Program, Vancouver, BC, Canada
| | - J K Wu
- British Columbia/Yukon Pediatric Hemophilia Program, Vancouver, BC, Canada.,Division of Hematology, Oncology and Bone Marrow Transplant, Department of Pediatrics, University of British Columbia School of Nursing, Vancouver, BC, Canada
| | - S Jackson
- Division of Hematology, Department of Medicine, University of British Columbia, Vancouver, BC, Canada.,British Columbia/Yukon Adult Hemophilia Program, Vancouver, BC, Canada
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41
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Sun HL, Cui R, Zhou J, Teng KY, Hsiao YH, Nakanishi K, Fassan M, Luo Z, Shi G, Tili E, Kutay H, Lovat F, Vicentini C, Huang HL, Wang SW, Kim T, Zanesi N, Jeon YJ, Lee TJ, Guh JH, Hung MC, Ghoshal K, Teng CM, Peng Y, Croce CM. ERK Activation Globally Downregulates miRNAs through Phosphorylating Exportin-5. Cancer Cell 2016; 30:723-736. [PMID: 27846390 PMCID: PMC5127275 DOI: 10.1016/j.ccell.2016.10.001] [Citation(s) in RCA: 105] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2015] [Revised: 04/01/2016] [Accepted: 10/03/2016] [Indexed: 02/05/2023]
Abstract
MicroRNAs (miRNA) are mostly downregulated in cancer. However, the mechanism underlying this phenomenon and the precise consequence in tumorigenesis remain obscure. Here we show that ERK suppresses pre-miRNA export from the nucleus through phosphorylation of exportin-5 (XPO5) at T345/S416/S497. After phosphorylation by ERK, conformation of XPO5 is altered by prolyl isomerase Pin1, resulting in reduction of pre-miRNA loading. In liver cancer, the ERK-mediated XPO5 suppression reduces miR-122, increases microtubule dynamics, and results in tumor development and drug resistance. Analysis of clinical specimens further showed that XPO5 phosphorylation is associated with poor prognosis for liver cancer patients. Our study reveals a function of ERK in miRNA biogenesis and suggests that modulation of miRNA export has potential clinical implications.
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Affiliation(s)
- Hui-Lung Sun
- Department of Cancer Biology and Genetics, Ohio State University, Columbus, OH 43210, USA; Pharmacological Institute, College of Medicine, National Taiwan University, Taipei 10051, Taiwan
| | - Ri Cui
- Department of Cancer Biology and Genetics, Ohio State University, Columbus, OH 43210, USA
| | - JianKang Zhou
- Department of Thoracic Surgery, State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, PR China
| | - Kun-Yu Teng
- Department of Pathology, Ohio State University, Columbus, OH 43210, USA
| | - Yung-Hsuan Hsiao
- Department of Human Sciences, Human Nutrition Program, College of Education and Human Ecology, Ohio State University, Columbus, OH 43210, USA
| | - Kotaro Nakanishi
- Department of Chemistry and Biochemistry, Ohio State University, Columbus, OH 43210, USA
| | - Matteo Fassan
- Department of Cancer Biology and Genetics, Ohio State University, Columbus, OH 43210, USA; ARC-NET Research Centre, University and Hospital Trust of Verona, Verona 37126, Italy
| | - Zhenghua Luo
- Department of Cancer Biology and Genetics, Ohio State University, Columbus, OH 43210, USA
| | - Guqin Shi
- Division of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, Ohio State University, Columbus, OH 43210, USA
| | - Esmerina Tili
- Department of Cancer Biology and Genetics, Ohio State University, Columbus, OH 43210, USA; Department of Anesthesiology, Ohio State University, Columbus, OH 43210, USA
| | - Huban Kutay
- Department of Pathology, Ohio State University, Columbus, OH 43210, USA
| | - Francesca Lovat
- Department of Cancer Biology and Genetics, Ohio State University, Columbus, OH 43210, USA
| | - Caterina Vicentini
- ARC-NET Research Centre, University and Hospital Trust of Verona, Verona 37126, Italy
| | - Han-Li Huang
- The Ph.D. Program for Cancer Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei 11031, Taiwan
| | - Shih-Wei Wang
- Department of Medicine, Mackay Medical College, New Taipei City 25245, Taiwan
| | - Taewan Kim
- Department of Molecular and Cellular Oncology, University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Nicola Zanesi
- Department of Cancer Biology and Genetics, Ohio State University, Columbus, OH 43210, USA
| | - Young-Jun Jeon
- Department of Cancer Biology and Genetics, Ohio State University, Columbus, OH 43210, USA
| | - Tae Jin Lee
- Department of Cancer Biology and Genetics, Ohio State University, Columbus, OH 43210, USA
| | - Jih-Hwa Guh
- School of Pharmacy, National Taiwan University, Taipei 10051, Taiwan
| | - Mien-Chie Hung
- Department of Molecular and Cellular Oncology, University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA; Graduate Institute of Cancer Biology and Center for Molecular Medicine, China Medical University, Taichung 40402, Taiwan; Department of Biotechnology, Asia University, Taichung 41354, Taiwan
| | - Kalpana Ghoshal
- Department of Pathology, Ohio State University, Columbus, OH 43210, USA
| | - Che-Ming Teng
- Pharmacological Institute, College of Medicine, National Taiwan University, Taipei 10051, Taiwan
| | - Yong Peng
- Department of Thoracic Surgery, State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, PR China.
| | - Carlo M Croce
- Department of Cancer Biology and Genetics, Ohio State University, Columbus, OH 43210, USA.
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Sun HL, Meng LN, Zhao X, Jiang JR, Liu QY, Shi DS, Lu FH. Effects of DNA methyltransferase inhibitor RG108 on methylation in buffalo adult fibroblasts and subsequent embryonic development following somatic cell nuclear transfer. Genet Mol Res 2016; 15:gmr8455. [PMID: 27706684 DOI: 10.4238/gmr.15038455] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Buffalo are characteristic livestock of the Guangxi Zhuang Autonomous Region of China, but their low reproductive capacity necessitates the use of somatic cell nuclear transfer (SCNT). We investigated the effects of RG108 on DNA methylation in buffalo adult fibroblasts, and on subsequent SCNT embryo development. RG108 treatment (0, 5, 10, 20, and 100 mM) had no effect on cell morphology, viability, or karyotype (2n = 48), and cell growth followed a typical "S" curve. Immunohistochemistry showed that relative DNA methylation gradually decreased as RG108 concentration increased, and was significantly lower in the 20 and 100 mM groups compared to the 0, 5, and 10 mM treatments (0.94 ± 0.03 and 0.92 ± 0.05 vs 1.0 ± 0.02, 0.98 ± 0.05, and 0.98 ± 0.09, respectively; P < 0.05). Quantitative polymerase chain reaction revealed that DNMT1 gene expression of fibroblasts administered 10, 20, and 100 mM RG108 was significantly lower than those in the 0 and 5 mM groups (0.2 ± 0.05, 0.18 ± 0.07, and 0.3 ± 0.09 vs 1.0 ± 0.12 and 1.4 ± 0.12, respectively; P < 0.05). Treatment with 20 mM RG108 resulted in the lowest expression levels. Fibroblasts incubated with 20 mM RG108 for 72 h were used as donor cells to generate SCNT embryos. A greater number of such embryos developed into blastocysts compared to the non-treated group (28.9 ± 3.9 vs 15.3 ± 3.4%; P < 0.05). RG108 treatment can modify DNA methylation in buffalo adult fibroblasts and promote development of subsequent SCNT embryos.
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Affiliation(s)
- H L Sun
- Animal Reproduction Institute, State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, Nanning, China.,Reproductive Medicine Department, Binzhou Medical University Hospital, Binzhou, China
| | - L N Meng
- Animal Reproduction Institute, State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, Nanning, China
| | - X Zhao
- Animal Reproduction Institute, State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, Nanning, China
| | - J R Jiang
- Animal Reproduction Institute, State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, Nanning, China
| | - Q Y Liu
- Animal Reproduction Institute, State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, Nanning, China
| | - D S Shi
- Animal Reproduction Institute, State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, Nanning, China
| | - F H Lu
- Animal Reproduction Institute, State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, Nanning, China
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Cui R, Kim T, Fassan M, Meng W, Sun HL, Jeon YJ, Vicentini C, Tili E, Peng Y, Scarpa A, Liang G, Zhang YK, Chakravarti A, Croce CM. MicroRNA-224 is implicated in lung cancer pathogenesis through targeting caspase-3 and caspase-7. Oncotarget 2016; 6:21802-15. [PMID: 26307684 PMCID: PMC4673127 DOI: 10.18632/oncotarget.5224] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [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: 07/23/2015] [Accepted: 08/08/2015] [Indexed: 02/07/2023] Open
Abstract
We recently reported that miR-224 was significantly up-regulated in non-small cell lung cancer (NSCLC) tissues, in particular in resected NSCLC metastasis. We further demonstrated that miR-224 functions as an oncogene in NSCLC by directly targeting TNFAIP1 and SMAD4. However, the biological functions of miR-224 in NSCLC are controversial and underlying mechanisms of miR-224 in the progression and metastasis of lung cancer remain to be further explored. Here we report that caspase3 (CASP3) and caspase7 (CASP7) are previously unidentified targets of miR-224 in NSCLC, and that miR-224 promotes lung cancer cells proliferation and migration in part by directly targeting CASP7 and down-regulating its expression. In addition, miR-224 attenuated TNF-α induced apoptosis by direct targeting of CASP3 resulting in reduction of cleaved PARP1 expression in lung cancer cells. Furthermore, the expression of miR-224 negatively correlates with the expression of CASP7 and CASP3 in tissue samples from patients with lung cancer. Finally, we found that activated NF-κB signaling is involved in the regulation of miR-224 expression in lung cancer. Our study provides new insight in understanding of oncogenic role of miR-224 in the lung cancer pathogenesis and suggests that NF-κB/miR-224/CASP3, 7 pathway could be a putative therapeutic target in lung cancer.
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Affiliation(s)
- Ri Cui
- Department of Molecular Virology, Immunology and Medical Genetics and Comprehensive Cancer Center, The Ohio State University, Columbus, OH, USA.,Chemical Biology Research Center, School of Pharmaceutical Sciences and Lung Cancer Research Center, The Zhoushan Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Taewan Kim
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Matteo Fassan
- Department of Molecular Virology, Immunology and Medical Genetics and Comprehensive Cancer Center, The Ohio State University, Columbus, OH, USA.,Department of Medicine (DIMED), University of Padua, Padua, Italy
| | - Wei Meng
- Department of Radiation Oncology and Comprehensive Cancer Center, The Ohio State University, Columbus, OH, USA
| | - Hui-Lung Sun
- Department of Molecular Virology, Immunology and Medical Genetics and Comprehensive Cancer Center, The Ohio State University, Columbus, OH, USA
| | - Young-Jun Jeon
- Department of Molecular Virology, Immunology and Medical Genetics and Comprehensive Cancer Center, The Ohio State University, Columbus, OH, USA
| | - Caterina Vicentini
- Applied Research on Cancer Network (ARC-NET) Research Centre, University of Verona, Verona, Italy
| | - Esmerina Tili
- Department of Molecular Virology, Immunology and Medical Genetics and Comprehensive Cancer Center, The Ohio State University, Columbus, OH, USA.,Department of Anesthesiology, Wexner Medical Center, The Ohio State University, Columbus, OH, USA
| | - Yong Peng
- Division of Thoracic Surgery, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Collaborative Innovation Center of Biotherapy, Chengdu, China
| | - Aldo Scarpa
- Department of Pathology and Diagnostics, University of Verona, Verona, Italy
| | - Guang Liang
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Yong Kui Zhang
- Department of Cardio-Thoracic Surgery, Lung Cancer Research Center, Zhoushan Hospital of Wenzhou Medical University, Zhoushan, Zhejiang, China
| | - Arnab Chakravarti
- Department of Radiation Oncology and Comprehensive Cancer Center, The Ohio State University, Columbus, OH, USA
| | - Carlo M Croce
- Department of Molecular Virology, Immunology and Medical Genetics and Comprehensive Cancer Center, The Ohio State University, Columbus, OH, USA
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44
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Sun Y, Shieh A, Kim SH, King S, Kim A, Sun HL, Croce CM, Parquette JR. The self-assembly of a camptothecin-lysine nanotube. Bioorg Med Chem Lett 2016; 26:2834-2838. [DOI: 10.1016/j.bmcl.2016.04.056] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2016] [Revised: 04/19/2016] [Accepted: 04/20/2016] [Indexed: 12/26/2022]
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Abstract
MicroRNA-9 (miR-9) has a well-established role in various tumors; the clinical significance and potential mechanism of miR-9 in human osteosarcoma (OS) has not been elucidated. The aim of this study was to investigate the mechanism and role of miR-9 expression in osteosarcoma cells. miR-9 expression in the OS cell line MG-63 and OS tissues was compared to that in a human osteoblastic cell line (hFOB 1.19) and adjacent normal tissues, respectively, by reverse transcriptase-polymerase chain reaction. miR-9 expression was downregulated by introducing small interfering RNA against miR-9 (si-miR-9) into the cells, and the proliferative, migratory, and invasive capacities of si-miR-9-transfected MG-63 cells were compared to those of control MG-63 cells. miR-9 was significantly upregulated in OS tissues and cell lines compared to the corresponding non-cancerous bone tissues (P < 0.05) and human osteoblastic cell line (P < 0.05), respectively. Upregulated miR-9 expression was also associated with increased cell proliferation (P < 0.05), migration (P < 0.05), and invasion (P < 0.05), and decreased apoptotic ability (P < 0.05). These results suggest that miR-9 may play a pivotal role in tumorigenesis and tumor progression in osteosarcoma.
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Affiliation(s)
- X J Qi
- Department of Orthopedics, Yantai Yuhuangding Hospital, Yantai, Shandong, China
| | - J F Wang
- Department of Orthopedics, Yantai Yuhuangding Hospital, Yantai, Shandong, China
| | - G D Wang
- Department of Orthopedics, Yantai Yuhuangding Hospital, Yantai, Shandong, China
| | - Q Xu
- Department of Orthopedics, Yantai Yuhuangding Hospital, Yantai, Shandong, China
| | - H L Sun
- Department of Orthopedics, Yantai Yuhuangding Hospital, Yantai, Shandong, China
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46
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Sun Y, Kaplan JA, Shieh A, Sun HL, Croce CM, Grinstaff MW, Parquette JR. Self-assembly of a 5-fluorouracil-dipeptide hydrogel. Chem Commun (Camb) 2016; 52:5254-7. [PMID: 26996124 DOI: 10.1039/c6cc01195k] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
The self-assembly of 5-fluorouracil dilysine conjugates into self-supporting hydrogels, comprised of entangled nanofibers or rigid nanotubes with diameters of 10 and 16 nm, respectively, is reported. The rate of release of 5-Fu from the conjugates was highly dependent on concentration in solution, whereas, release from the fully formed hydrogels was significantly slower. The 5-Fu conjugate also exhibited promising in vitro cytotoxicity against human tumor cell lines A549, H460 and H23.
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Affiliation(s)
- Yuan Sun
- Department of Chemistry and Biochemistry, The Ohio State University, 100 W. 18th Ave., Columbus, Ohio 43210, USA.
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47
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Li CW, Xia W, Lim SO, Hsu JL, Huo L, Wu Y, Li LY, Lai CC, Chang SS, Hsu YH, Sun HL, Kim J, Yamaguchi H, Lee DF, Wang H, Wang Y, Chou CK, Hsu JM, Lai YJ, LaBaff AM, Ding Q, Ko HW, Tsai FJ, Tsai CH, Hortobagyi GN, Hung MC. AKT1 Inhibits Epithelial-to-Mesenchymal Transition in Breast Cancer through Phosphorylation-Dependent Twist1 Degradation. Cancer Res 2016; 76:1451-62. [PMID: 26759241 DOI: 10.1158/0008-5472.can-15-1941] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [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] [Received: 07/15/2015] [Accepted: 11/18/2015] [Indexed: 12/16/2022]
Abstract
Epithelial-to-mesenchymal transition (EMT) is an essential physiologic process that promotes cancer cell migration, invasion, and metastasis. Several lines of evidence from both cellular and genetic studies suggest that AKT1/PKBα, but not AKT2 or AKT3, serves as a negative regulator of EMT and breast cancer metastasis. However, the underlying mechanism by which AKT1 suppresses EMT remains poorly defined. Here, we demonstrate that phosphorylation of Twist1 by AKT1 is required for β-TrCP-mediated Twist1 ubiquitination and degradation. The clinically used AKT inhibitor MK-2206, which possesses higher specificity toward AKT1, stabilized Twist1 and enhanced EMT in breast cancer cells. However, we discovered that resveratrol, a naturally occurring compound, induced β-TrCP-mediated Twist1 degradation to attenuate MK-2206-induced EMT in breast cancer cells. Taken together, our findings demonstrate that resveratrol counteracts the unexpected metastatic potential induced by anti-AKT therapy and therefore suggest that the addition of resveratrol to an anti-AKT therapeutic regimen may provide extra support for limiting EMT.
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Affiliation(s)
- Chia-Wei Li
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Weiya Xia
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Seung-Oe Lim
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Jennifer L Hsu
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas. Center for Molecular Medicine and Graduate Institute of Cancer Biology, China Medical University, Taichung, Taiwan. Department of Biotechnology, Asia University, Taichung, Taiwan
| | - Longfei Huo
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Yun Wu
- Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Long-Yuan Li
- Center for Molecular Medicine and Graduate Institute of Cancer Biology, China Medical University, Taichung, Taiwan. Department of Biotechnology, Asia University, Taichung, Taiwan
| | - Chien-Chen Lai
- Institute of Molecular Biology, National Chung Hsing University, Taichung, Taiwan
| | - Shih-Shin Chang
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Yi-Hsin Hsu
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Hui-Lung Sun
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Jongchan Kim
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Hirohito Yamaguchi
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Dung-Fang Lee
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Hongmei Wang
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Yan Wang
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Chao-Kai Chou
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas. Center for Molecular Medicine and Graduate Institute of Cancer Biology, China Medical University, Taichung, Taiwan. Department of Biotechnology, Asia University, Taichung, Taiwan
| | - Jung-Mao Hsu
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Yun-Ju Lai
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Adam M LaBaff
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas. Graduate School of Biomedical Sciences, The University of Texas Health Science Center, Houston, Texas
| | - Qingqing Ding
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - How-Wen Ko
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas. Graduate School of Biomedical Sciences, The University of Texas Health Science Center, Houston, Texas
| | - Fuu-Jen Tsai
- Department of Medical Research, China Medical University Hospital, Taichung, Taiwan
| | - Chang-Hai Tsai
- Department of Biotechnology, Asia University, Taichung, Taiwan. Department of Medical Research, China Medical University Hospital, Taichung, Taiwan
| | - Gabriel N Hortobagyi
- Department of Breast Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Mien-Chie Hung
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas. Center for Molecular Medicine and Graduate Institute of Cancer Biology, China Medical University, Taichung, Taiwan. Department of Biotechnology, Asia University, Taichung, Taiwan. Graduate School of Biomedical Sciences, The University of Texas Health Science Center, Houston, Texas.
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48
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Tai HC, Chang AC, Yu HJ, Huang CY, Tsai YC, Lai YW, Sun HL, Tang CH, Wang SW. Osteoblast-derived WNT-induced secreted protein 1 increases VCAM-1 expression and enhances prostate cancer metastasis by down-regulating miR-126. Oncotarget 2015; 5:7589-98. [PMID: 25277191 PMCID: PMC4202146 DOI: 10.18632/oncotarget.2280] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [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] [Indexed: 12/03/2022] Open
Abstract
Bone metastases of prostate cancer (PCa) may cause intractable pain. Wnt-induced secreted protein-1 (WISP-1) belongs to the CCN family (CTGF/CYR61/NOV) that plays a key role in bone formation. We found that osteoblast-conditioned medium (OBCM) stimulates migration and vascular cell adhesion molecule-1 (VCAM-1) expression in human PCa (PC3 and DU145) cells. Osteoblast transfection with WISP-1 shRNA reduced OBCM-mediated PCa migration and VCAM-1 expression. Stimulation of PCa with OBCM or WISP-1 elevated focal adhesion kinase (FAK) and p38 phosphorylation. Either FAK and p38 inhibitors or siRNA abolished osteoblast-derived WISP-1-induced migration and VCAM-1 expression. Osteoblast-derived WISP-1 inhibited miR-126 expression. Moreover, miR-216 mimic reversed the WISP-1-enhanced migration and VCAM-1 expression. This study suggests that osteoblast-derived WISP-1 promotes migration and VCAM-1 expression in human PCa cells by down-regulating miR-126 expression via αvβ1 integrin, FAK, and p38 signaling pathways. Thus, WISP-1 may be a new molecular therapeutic target in PCa bone metastasis.
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Affiliation(s)
- Huai-Ching Tai
- Department of Urology, National Taiwan University Hospital, Taipei, Taiwan
| | - An-Chen Chang
- Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan
| | - Hong-Jeng Yu
- Department of Urology, National Taiwan University Hospital, Taipei, Taiwan
| | - Chao-Yuan Huang
- Department of Urology, National Taiwan University Hospital, Taipei, Taiwan
| | - Yu-Chieh Tsai
- Department of Oncology, National Taiwan University Hospital, Taipei, Taiwan
| | - Yu-Wei Lai
- Division of Urology, Taipei City Hospital Renai Branch, Taipei, Taiwan
| | - Hui-Lung Sun
- Department of Molecular Virology, Immunology and Mediccal Genetics, Ohio state University, Columbus, OH, USA
| | - Chih-Hsin Tang
- Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan. Department of Pharmacology, School of Medicine, China Medical University, Taichung, Taiwan. Department of Biotechnology, College of Health Science, Asia University, Taichung, Taiwan
| | - Shih-Wei Wang
- Department of Medicine, Mackay Medical College, New Taipei City, Taiwan
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49
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Jeon YJ, Middleton J, Kim T, Laganà A, Piovan C, Secchiero P, Nuovo GJ, Cui R, Joshi P, Romano G, Di Leva G, Lee BK, Sun HL, Kim Y, Fadda P, Alder H, Garofalo M, Croce CM. A set of NF-κB-regulated microRNAs induces acquired TRAIL resistance in lung cancer. Proc Natl Acad Sci U S A 2015; 112:E3355-64. [PMID: 26080425 PMCID: PMC4491797 DOI: 10.1073/pnas.1504630112] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
TRAIL (TNF-related apoptosis-inducing ligand) is a promising anticancer agent that can be potentially used as an alternative or complementary therapy because of its specific antitumor activity. However, TRAIL can also stimulate the proliferation of cancer cells through the activation of NF-κB, but the exact mechanism is still poorly understood. In this study, we show that chronic exposure to subtoxic concentrations of TRAIL results in acquired resistance. This resistance is associated with the increase in miR-21, miR-30c, and miR-100 expression, which target tumor-suppressor genes fundamental in the response to TRAIL. Importantly, down-regulation of caspase-8 by miR-21 blocks receptor interacting protein-1 cleavage and induces the activation of NF-κB, which regulates these miRNAs. Thus, TRAIL activates a positive feedback loop that sustains the acquired resistance and causes an aggressive phenotype. Finally, we prove that combinatory treatment of NF-κB inhibitors and TRAIL is able to revert resistance and reduce tumor growth, with important consequences for the clinical practice.
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Affiliation(s)
- Young-Jun Jeon
- Department of Molecular Virology, Immunology, and Medical Genetics, The Ohio State University, Columbus, OH 43210
| | - Justin Middleton
- Department of Molecular Virology, Immunology, and Medical Genetics, The Ohio State University, Columbus, OH 43210
| | - Taewan Kim
- Department of Molecular Virology, Immunology, and Medical Genetics, The Ohio State University, Columbus, OH 43210; Department of Molecular and Cellular Oncology, University of Texas MD Anderson Cancer Center, Houston, TX 77030
| | - Alessandro Laganà
- Department of Molecular Virology, Immunology, and Medical Genetics, The Ohio State University, Columbus, OH 43210
| | - Claudia Piovan
- Department of Molecular Virology, Immunology, and Medical Genetics, The Ohio State University, Columbus, OH 43210; Department of Experimental Oncology and Molecular Medicine, Start Up Unit, Fondazione Istituto Di Ricovero e Cura a Carattere Scientifico, Istituto Nazionale per lo Studio e la Cura dei Tumori, 20133 Milan, Italy
| | - Paola Secchiero
- Department of Morphology and Embryology, Human Anatomy Section, University of Ferrara, 44100 Ferrara, Italy
| | - Gerard J Nuovo
- Department of Molecular Virology, Immunology, and Medical Genetics, The Ohio State University, Columbus, OH 43210
| | - Ri Cui
- Department of Molecular Virology, Immunology, and Medical Genetics, The Ohio State University, Columbus, OH 43210
| | - Pooja Joshi
- Department of Molecular Virology, Immunology, and Medical Genetics, The Ohio State University, Columbus, OH 43210
| | - Giulia Romano
- Department of Molecular Virology, Immunology, and Medical Genetics, The Ohio State University, Columbus, OH 43210
| | - Gianpiero Di Leva
- Department of Molecular Virology, Immunology, and Medical Genetics, The Ohio State University, Columbus, OH 43210
| | - Bum-Kyu Lee
- Department of Molecular Biosciences, University of Texas at Austin, Austin, TX 78712
| | - Hui-Lung Sun
- Department of Molecular Virology, Immunology, and Medical Genetics, The Ohio State University, Columbus, OH 43210
| | - Yonghwan Kim
- Department of Life Systems, Sookmyung Women's University, Seoul 140-742, Republic of Korea
| | - Paolo Fadda
- Department of Molecular Virology, Immunology, and Medical Genetics, The Ohio State University, Columbus, OH 43210
| | - Hansjuerg Alder
- Department of Molecular Virology, Immunology, and Medical Genetics, The Ohio State University, Columbus, OH 43210
| | - Michela Garofalo
- Transcriptional Networks in Lung Cancer Group, Cancer Research United Kingdom Manchester Institute, University of Manchester, Manchester M20 4BX, United Kingdom
| | - Carlo M Croce
- Department of Molecular Virology, Immunology, and Medical Genetics, The Ohio State University, Columbus, OH 43210;
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50
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Sun HL, Li CD, Zhu JL, Yi XD, Liu H, Lu HL, Li H, Yu ZR, Wang Y. [Clinical research of percutaneous vertebroplasty or percutaneous kyphoplasty for treating osteoporotic vertebral compression fractures induced by glucocorticosteroid]. Beijing Da Xue Xue Bao Yi Xue Ban 2015; 47:242-7. [PMID: 25882937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 09/28/2022]
Abstract
OBJECTIVE To investigate the clinical characteristics of vertebral compression fracture (VCF) in glucocorticosteroid-induced osteoporosis (GIOP) and risk of vertebral refracture after percutaneous vertebroplasty (PVP) or percutaneous kyphoplasty (PKP). METHODS In the study, 570 cases who received PVP or PKP as treatments of VCF from January 2010 to December 2013 were retrospective reviewed, of which 42 were GIOP and 21 were followed up as GIOP group, and the other 528 were primary osteoporosis and 391 were followed up, of which 84 were selected as Control group based on age and gender. The fracture location, ratio of single segment fracture and multiple segments fracture in the two groups were compared. In the final follow up, the reoperation rates for vertebral refractures by the Kaplan-Meier method in the two groups were compared. RESULTS The follow up periods were (24.0± 13.1) months in GIOP group and (25.8±14.4) months in control group(P>0.05). In GIOP group, there were 11 cases with one-segment fracture, 2 with two-segments fracture, 3 with three-segments fracture, 2 with four-segments fracture, 2 with five-segments fracture and 1 with eight-segments fracture. In Control group, there were 67 cases with one-segment fracture, 12 with two-segments fracture, 3 with three-segment fracture, and 2 with four-segments fracture. The ratio of single segment fracture in GIOP group was significantly lower than that in Control group(52.4% vs. 79.8%,P=0.01). There were 50 fracture segments in GIOP group and 109 fracture segments in Control group. The ratios of fracture segments located in thoracic segments(T1-T10), thoracolumbar segments(T11-L1)and lumbar segments(L2-L5)were 18%, 46% and 36% in GIOP group and 11.9%, 58.7% and 29.4% in Control group (P>0.05). The refracture rate in GIOP group was higher than that in control group (23.8% vs. 6.0%). The survival rate was lower in GIOP group than that in control group (P<0.01). CONCLUSION The predilection site of VCF was similar in GIOP and primary osteoporosis (thoracolumbar segments> thoracic segments> lumbar segments). The risk of multiple segments VCF was higher in GIOP than in primary osteoporosis. The risk of vertebral refractures after PVP or PKP was higher in GIOP than in primary osteoporosis.
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Affiliation(s)
- H L Sun
- Department of Orthopedics, Peking University First Hospital, Beijing 100034, China
| | - C D Li
- Department of Orthopedics, Peking University First Hospital, Beijing 100034, China
| | - J L Zhu
- Peking University First Clinical College, Beijing 100034, China
| | - X D Yi
- Department of Orthopedics, Peking University First Hospital, Beijing 100034, China
| | - H Liu
- Department of Orthopedics, Peking University First Hospital, Beijing 100034, China
| | - H L Lu
- Department of Orthopedics, Peking University First Hospital, Beijing 100034, China
| | - H Li
- Department of Orthopedics, Peking University First Hospital, Beijing 100034, China
| | - Z R Yu
- Department of Orthopedics, Peking University First Hospital, Beijing 100034, China
| | - Y Wang
- Department of Orthopedics, Peking University First Hospital, Beijing 100034, China
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