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  • Ovid Technologies (Wolters Kluwer Health)  (16)
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  • Ovid Technologies (Wolters Kluwer Health)  (16)
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  • 1
    Online-Ressource
    Online-Ressource
    Ovid Technologies (Wolters Kluwer Health) ; 2023
    In:  Journal of Pancreatology Vol. 6, No. 1 ( 2023-03), p. 1-7
    In: Journal of Pancreatology, Ovid Technologies (Wolters Kluwer Health), Vol. 6, No. 1 ( 2023-03), p. 1-7
    Kurzfassung: The significance of exosomes has emerged in a variety of physiological processes and diseases. Pancreatic cancer remains one of the most lethal diseases at present. Recently, increasing evidence has suggested that exosomes are vital for mediating the elaborate interaction of highly heterogeneous cell clusters within the pancreatic tumor microenvironment, contributing to activating pancreatic stellate cells and cancer-associated fibroblasts, compromising immune cells, and enhancing angiogenesis. Besides their natural and intrinsic roles, exosomes may provide a novel potential way for pancreatic cancer management and therapy as well. Thus, exosomes not only mediate cellular communication during pancreatic cancer progression but also serve as a promising player in precise pancreatic cancer management and treatment. To comprehensively summarize the role of exosomes in pancreatic cancer, we searched the PubMed database and reviewed all relevant original studies.
    Materialart: Online-Ressource
    ISSN: 2096-5664
    Sprache: Englisch
    Verlag: Ovid Technologies (Wolters Kluwer Health)
    Publikationsdatum: 2023
    ZDB Id: 2964149-4
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 2
    In: Circulation Research, Ovid Technologies (Wolters Kluwer Health), Vol. 130, No. 5 ( 2022-03-04), p. 760-778
    Kurzfassung: The MSTs (mammalian Ste20-like kinases) 1/2 are members of the HIPPO pathway that act as growth suppressors in adult proliferative diseases. Pulmonary arterial hypertension (PAH) manifests by increased proliferation and survival of pulmonary vascular cells in small PAs, pulmonary vascular remodeling, and the rise of pulmonary arterial pressure. The role of MST1/2 in PAH is currently unknown. Objective: To investigate the roles and mechanisms of the action of MST1 and MST2 in PAH. Methods and Results: Using early-passage pulmonary vascular cells from PAH and nondiseased lungs and mice with smooth muscle-specific tamoxifen-inducible Mst1/2 knockdown, we found that, in contrast to canonical antiproliferative/proapoptotic roles, MST1/2 act as proproliferative/prosurvival molecules in human PAH pulmonary arterial vascular smooth muscle cells and pulmonary arterial adventitial fibroblasts and support established pulmonary vascular remodeling and pulmonary hypertension in mice with SU5416/hypoxia-induced pulmonary hypertension. By using unbiased proteomic analysis, gain- and loss-of function approaches, and pharmacological inhibition of MST1/2 kinase activity by XMU-MP-1, we next evaluated mechanisms of regulation and function of MST1/2 in PAH pulmonary vascular cells. We found that, in PAH pulmonary arterial adventitial fibroblasts, the proproliferative function of MST1/2 is caused by IL-6-dependent MST1/2 overexpression, which induces PSMC6-dependent downregulation of forkhead homeobox type O 3 and hyperproliferation. In PAH pulmonary arterial vascular smooth muscle cells, MST1/2 acted via forming a disease-specific interaction with BUB3 and supported ECM (extracellular matrix)- and USP10-dependent BUB3 accumulation, upregulation of Akt-mTORC1, cell proliferation, and survival. Supporting our in vitro observations, smooth muscle-specific Mst1/2 knockdown halted upregulation of Akt-mTORC1 in small muscular PAs of mice with SU5416/hypoxia-induced pulmonary hypertension. Conclusions: Together, this study describes a novel proproliferative/prosurvival role of MST1/2 in PAH pulmonary vasculature, provides a novel mechanistic link from MST1/2 via BUB3 and forkhead homeobox type O to the abnormal proliferation and survival of pulmonary arterial vascular smooth muscle cells and pulmonary arterial adventitial fibroblasts, remodeling and pulmonary hypertension, and suggests new target pathways for therapeutic intervention.
    Materialart: Online-Ressource
    ISSN: 0009-7330 , 1524-4571
    RVK:
    Sprache: Englisch
    Verlag: Ovid Technologies (Wolters Kluwer Health)
    Publikationsdatum: 2022
    ZDB Id: 1467838-X
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 3
    Online-Ressource
    Online-Ressource
    Ovid Technologies (Wolters Kluwer Health) ; 2023
    In:  Arteriosclerosis, Thrombosis, and Vascular Biology Vol. 43, No. 5 ( 2023-05), p. 674-683
    In: Arteriosclerosis, Thrombosis, and Vascular Biology, Ovid Technologies (Wolters Kluwer Health), Vol. 43, No. 5 ( 2023-05), p. 674-683
    Kurzfassung: NF-κB (nuclear factor kappa B) plays a pivotal role in endothelial cell (EC) inflammation. Protein ISGylation is regulated by E3 ISG15 (interferon-stimulated gene 15) ligases; however, ISGylation of NF-κBp65 and its role in EC functions have not been investigated. Here, we investigate whether p65 is ISGylated and the role of its ISGylation in endothelial functions. Methods: In vitro ISGylation assay and EC inflammation were performed. EC-specific transgenic mice were utilized in a murine model of acute lung injury. Results: We find that NF-κBp65 is ISGylated in resting ECs and that the posttranslational modification is reversible. TNFα (tumor necrosis factor alpha) and endotoxin stimulation of EC reduce p65 ISGylation, promoting its serine phosphorylation through reducing its association with a phosphatase WIP1 (wild-type p53-induced phosphatase 1). Mechanistically, an SCF (Skp1-Cul1-F-box) protein E3 ligase SCF FBXL19 is identified as a new ISG15 E3 ligase that targets and catalyzes ISGylation of p65. Depletion of FBXL19 (F-box and leucine-rich repeat protein 19) increases p65 phosphorylation and EC inflammation, suggesting a negative correlation between p65 ISGylation and phosphorylation. Moreover, EC-specific FBXL19 overexpressing humanized transgenic mice exhibit reduced lung inflammation and severity of experimental acute lung injury. Conclusions: Together, our data reveal a new posttranslational modification of p65 catalyzed by a previously unrecognized role of SCF FBXL19 as an ISG15 E3 ligase that modulates EC inflammation.
    Materialart: Online-Ressource
    ISSN: 1079-5642 , 1524-4636
    Sprache: Englisch
    Verlag: Ovid Technologies (Wolters Kluwer Health)
    Publikationsdatum: 2023
    ZDB Id: 1494427-3
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 4
    Online-Ressource
    Online-Ressource
    Ovid Technologies (Wolters Kluwer Health) ; 2019
    In:  Medicine Vol. 98, No. 46 ( 2019-11), p. e18017-
    In: Medicine, Ovid Technologies (Wolters Kluwer Health), Vol. 98, No. 46 ( 2019-11), p. e18017-
    Kurzfassung: Several studies have been conducted on the relationship between insulin-like growth factor 1 gene (IGF-1) rs35767 polymorphisms and cancer risk, but the results are conflicting. We performed a meta-analysis to investigate the relationship between IGF-1 rs35767 polymorphisms and cancer risk. Methods: Eight studies (5 for IGF-1 rs35767 C 〉 T and 3 for IGF-1 rs35767 A 〉 G) with a total of 11,257 cases and 16,213 controls were included. The studies were about the association between IGF-1 rs35767 polymorphisms and cancer risk and acquired by searching PubMed, Embase, and Web of Science databases for articles published before January 20, 2019. STATA software was used to analyze the data and identify the strength of the association by using pooled-odds ratios (ORs) with corresponding 95% confidence intervals (CIs). Results: No significant associations were observed between the IGF-1 rs35767 C 〉 T polymorphism and cancer risk in all genetic models. However, the IGF-1 rs35767 A 〉 G polymorphism was significantly associated with increased cancer risk for all genetic models (G vs A: OR = 1.087, 95% CI: 1.036–1.141, P h  = .338; GG vs AA: OR = 1.272, 95% CI: 1.121–1.442, P h  = .359; AG vs AA: OR = 1.187, 95% CI: 1.043–1.351, P h  = .695; AG+GG vs AA: OR = 1.187, 95% CI: 1.043–1.351, P h  = .695; GG vs AA+AG: OR = 1.086, 95% CI: 1.025–1.151, P h  = .275). Begg and Egger tests showed that no publication bias existed. Conclusion: Our findings indicated that the IGF-1 rs35767 A 〉 G polymorphism might be a risk factor for cancer development. However, additional well-designed studies with sample sizes larger than ours need to be conducted in the future to verify our findings.
    Materialart: Online-Ressource
    ISSN: 0025-7974 , 1536-5964
    Sprache: Englisch
    Verlag: Ovid Technologies (Wolters Kluwer Health)
    Publikationsdatum: 2019
    ZDB Id: 2049818-4
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 5
    Online-Ressource
    Online-Ressource
    Ovid Technologies (Wolters Kluwer Health) ; 2019
    In:  Medicine Vol. 98, No. 2 ( 2019-01), p. e14055-
    In: Medicine, Ovid Technologies (Wolters Kluwer Health), Vol. 98, No. 2 ( 2019-01), p. e14055-
    Kurzfassung: Chronic uncomplicated neck pain, back pain, and lower back pain, with incidences of 18%, 17.7% and 36%, respectively. Although these three conditions occur in different parts of the body, we can summarize them as chronic uncomplicated musculoskeletal pain associated with the spine (CMPS) in accordance with the pathogenesis. Acupuncture is often used to treat them. We aim to conduct a systematic review to evaluate the efficacy of acupuncture for patients experiencing CMPS. Methods: The following electronic databases will be searched from inception to Mar 2019: Cochrane Central Register of Controlled Trials, Web of Science, ScienceDirect, PubMed, MEDLINE, EMBASE, Springer, WHO International Clinical Trials Registry Platform, China National Knowledge Infrastructure, Chinese Biomedical Literature Database, VIP Chinese Science and Technology Periodical Database, and Wanfang Database. All randomized controlled trials published in English or Chinese related to acupuncture for CMPS will be included. The primary outcome will be the visual analog scale. Adverse events will be evaluated as secondary outcomes for safety evaluation. Study selection, data extraction, and assessment of study quality will be performed independently by two reviewers. RevMan V.5.3.5 software will be used for the assessment of risk of bias and data synthesis. Results: This study will provide a high-quality synthesis of current evidence of acupuncture for CMPS from visual analog scale. Conclusion: The conclusion of our study will provide an evidence to judge whether acupuncture is an effective intervention for patients suffered from CMPS. Ethics and dissemination: Formal ethical approval is not required, as the data are not individualized. The findings of this systematic review will be disseminated in a peer-reviewed publication and/or presented at relevant conferences. PROSPERO registration number: CRD42018114806.
    Materialart: Online-Ressource
    ISSN: 0025-7974 , 1536-5964
    Sprache: Englisch
    Verlag: Ovid Technologies (Wolters Kluwer Health)
    Publikationsdatum: 2019
    ZDB Id: 2049818-4
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 6
    Online-Ressource
    Online-Ressource
    Ovid Technologies (Wolters Kluwer Health) ; 2023
    In:  Neurology Vol. 101, No. 7 ( 2023-08-15), p. e699-e709
    In: Neurology, Ovid Technologies (Wolters Kluwer Health), Vol. 101, No. 7 ( 2023-08-15), p. e699-e709
    Kurzfassung: The objective of this study was to propose a clustering approach to identify migraine subgroups and test the clinical usefulness of the approach by providing prognostic information for electroacupuncture treatment selection. Methods Participants with migraine without aura (MWoA) were asked to complete a daily headache diary, self-rating depression and anxiety, and quality-of-life questionnaires. Whole-brain functional connectivities (FCs) were assessed on resting-state functional MRI (fMRI). By integrating clinical measurements and fMRI data, partial least squares correlation and hierarchical clustering analysis were used to cluster participants with MWoA. Multivariate pattern analysis was applied to validate the proposed subgrouping strategy. Some participants had an 8-week electroacupuncture treatment, and the response rate was compared between different MWoA subgroups. Results In study 1, a total of 97 participants (age of 28.2 ± 1.0 years, 70 female participants) with MWoA and 77 healthy controls (HCs) (age of 26.8 ± 0.1 years, 61 female participants) were enrolled (dataset 1), and 2 MWoA subgroups were defined. The participants in subgroup 1 had a significantly lower headache frequency (times/month of 4.4 ± 1.1) and significantly higher self-ratings of depression (depression score of 49.5 ± 2.3) when compared with participants in subgroup 2 (times/month of 7.0 ± 0.6 and depression score of 43.4 ± 1.2). The between-group differences of FCs were predominantly related to the amygdala, thalamus, hippocampus, and parahippocampal area. In study 2, 33 participants with MWoA (age of 30.9 ± 2.0 years, 28 female participants) and 23 HCs (age of 29.8 ± 1.1 years, 13 female participants) were enrolled as an independent dataset (dataset 2). The classification analysis validated the effectiveness of the 2-cluster solution of participants with MWoA in datasets 1 and 2. In study 3, 58 participants with MWoA were willing to receive electroacupuncture treatment and were assigned to different subgroups. Participants in different subgroups exhibited different response rates ( p = 0.03, OR CI 0.086–0.93) to electroacupuncture treatment (18% and 44% for subgroups 1 and 2, respectively). Discussion Our study proposed a novel clustering approach to define distinct MWoA subgroups, which could be useful for refining the diagnosis of participants with MWoA and guiding individualized strategies for pain prophylaxis and analgesia.
    Materialart: Online-Ressource
    ISSN: 0028-3878 , 1526-632X
    RVK:
    Sprache: Englisch
    Verlag: Ovid Technologies (Wolters Kluwer Health)
    Publikationsdatum: 2023
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 7
    In: Chinese Medical Journal, Ovid Technologies (Wolters Kluwer Health), Vol. 136, No. 3 ( 2023-02-27), p. 331-340
    Kurzfassung: Rheumatoid arthritis (RA), a chronic systemic autoimmune disease, is characterized by synovitis and progressive damage to the bone and cartilage of the joints, leading to disability and reduced quality of life. This study was a randomized clinical trial comparing the outcomes between withdrawal and dose reduction of tofacitinib in patients with RA who achieved sustained disease control. Methods: The study was designed as a multicenter, open-label, randomized controlled trial. Eligible patients who were taking tofacitinib (5 mg twice daily) and had achieved sustained RA remission or low disease activity (disease activity score in 28 joints [DAS28] ≤3.2) for at least 3 months were enrolled at six centers in Shanghai, China. Patients were randomly assigned (1:1:1) to one of three treatment groups: continuation of tofacitinib (5 mg twice daily); reduction in tofacitinib dose (5 mg daily); and withdrawal of tofacitinib. Efficacy and safety were assessed up to 6 months. Results: Overall, 122 eligible patients were enrolled, with 41 in the continuation group, 42 in the dose-reduction group, and 39 in the withdrawal group. After 6 months, the percentage of patients with a DAS28-erythrocyte sedimentation rate (ESR) of 〈 3.2 was significantly lower in the withdrawal group than that in the reduction and continuation groups (20.5%, 64.3%, and 95.1%, respectively; P   〈  0.0001 for both comparisons). The average flare-free time was 5.8 months for the continuation group, 4.7 months for the dose reduction group, and 2.4 months for the withdrawal group. Conclusion: Withdrawal of tofacitinib in patients with RA with stable disease control resulted in a rapid and significant loss of efficacy, while standard or reduced doses of tofacitinib maintained a favorable state. Trial Registration: Chictr.org, ChiCTR2000039799.
    Materialart: Online-Ressource
    ISSN: 0366-6999 , 2542-5641
    Sprache: Englisch
    Verlag: Ovid Technologies (Wolters Kluwer Health)
    Publikationsdatum: 2023
    ZDB Id: 2108782-9
    SSG: 6,25
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 8
    In: Hypertension, Ovid Technologies (Wolters Kluwer Health)
    Kurzfassung: Rare genetic variants and genetic variation at loci in an enhancer in SOX17 (SRY-box transcription factor 17) are identified in patients with idiopathic pulmonary arterial hypertension (PAH) and PAH with congenital heart disease. However, the exact role of genetic variants or mutations in SOX17 in PAH pathogenesis has not been reported. Methods: SOX17 expression was evaluated in the lungs and pulmonary endothelial cells (ECs) of patients with idiopathic PAH. Mice with Tie2Cre-mediated Sox17 knockdown and EC-specific Sox17 deletion were generated to determine the role of SOX17 deficiency in the pathogenesis of PAH. Human pulmonary ECs were cultured to understand the role of SOX17 deficiency. Single-cell RNA sequencing, RNA-sequencing analysis, and luciferase assay were performed to understand the underlying molecular mechanisms of SOX17 deficiency–induced PAH. E2F1 (E2F transcription factor 1) inhibitor HLM006474 was used in EC-specific Sox17 mice. Results: SOX17 expression was downregulated in the lung and pulmonary ECs from patients with idiopathic PAH. Mice with Tie2Cre-mediated Sox17 knockdown and EC-specific Sox17 deletion induced spontaneously mild pulmonary hypertension. Loss of endothelial Sox17 in EC exacerbated hypoxia-induced pulmonary hypertension in mice. Loss of SOX17 in lung ECs induced endothelial dysfunctions including upregulation of cell cycle programming, proliferative and antiapoptotic phenotypes, augmentation of paracrine effect on pulmonary arterial smooth muscle cells, impaired cellular junction, and BMP (bone morphogenetic protein) signaling. E2F1 signaling was shown to mediate the SOX17 deficiency–induced EC dysfunction. Pharmacological inhibition of E2F1 in Sox17 EC-deficient mice attenuated pulmonary hypertension development. Conclusions: Our study demonstrated that endothelial SOX17 deficiency induces pulmonary hypertension through E2F1. Thus, targeting E2F1 signaling represents a promising approach in patients with PAH.
    Materialart: Online-Ressource
    ISSN: 0194-911X , 1524-4563
    Sprache: Englisch
    Verlag: Ovid Technologies (Wolters Kluwer Health)
    Publikationsdatum: 2023
    ZDB Id: 2094210-2
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 9
    Online-Ressource
    Online-Ressource
    Ovid Technologies (Wolters Kluwer Health) ; 2019
    In:  Medicine Vol. 98, No. 45 ( 2019-11), p. e17844-
    In: Medicine, Ovid Technologies (Wolters Kluwer Health), Vol. 98, No. 45 ( 2019-11), p. e17844-
    Kurzfassung: Several treatments are beneficial for patients with cancer-related pain (CRP), and there are numbers of systematic reviews evaluating the effectiveness and safety of these treatments. However, the overall quality of the evidence has not been quantitatively assessed. The aim of this study is to overcome the inconclusive evidence about the interventions of CRP. Methods: We will perform an umbrella systematic review to identify eligible randomised controlled trials (RCTs). A comprehensive literature search will be conducted in MEDLINE, EMBASE, and the Cochrane library for systematic reviews, meta-analyses and RCTs. We will describe the general information of the RCTs for participants, interventions, outcome measurements, comparisons, and results. Network meta-analysis will be developed to determine the comparative effectiveness of the treatments. Results: The result of this network meta-analysis will provide direct and indirect evidence of treatments for CRP. Conclusion: The conclusion of our study will help clinicians and CRP patients to choose suitable treatment options. Ethics and dissemination: Formal ethical approval is not required, as the data are not individualized. The findings of this systematic review will be disseminated in a peer-reviewed publication and/or presented at relevant conferences. PROSPERO registration number: CRD42019131721.
    Materialart: Online-Ressource
    ISSN: 0025-7974 , 1536-5964
    Sprache: Englisch
    Verlag: Ovid Technologies (Wolters Kluwer Health)
    Publikationsdatum: 2019
    ZDB Id: 2049818-4
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 10
    Online-Ressource
    Online-Ressource
    Ovid Technologies (Wolters Kluwer Health) ; 2022
    In:  NeuroReport Vol. 33, No. 12 ( 2022-08-02), p. 518-525
    In: NeuroReport, Ovid Technologies (Wolters Kluwer Health), Vol. 33, No. 12 ( 2022-08-02), p. 518-525
    Kurzfassung: In-vitro differentiation of human embryonic stem cells into spinal cord neural stem cells (NSCs) can help researchers better understand the cellular processes associated with spinal cord development and regeneration, and provide therapeutic strategies for spinal cord disorders. However, effective and consistent methods for the generation of human spinal cord NSCs are rare. Objective of the study is to establish methods for the in-vitro induction and long-term maintenance of human spinal cord NSCs. H9 cells were treated with neural induction medium for 10 days under single-cell seeding condition, followed by treatment with neural maintenance medium and replacement with NSC medium after five passages. The identity of the generated cells was determined by immunofluorescence, immunoblotting, and cleavage under targets and tagmentation (CUT & Tag) assays. After the neural induction, OCT4, an embryonic stem cell marker, was significantly reduced, whereas NESTIN and PAX6, two NSC markers, were clearly increased. After the neural maintenance, most of the H9-derived cells consistently expressed NESTIN and PAX6 together with SOX1 and HOXC9, two spinal cord markers. The Homer known motif enrichment results of the CUT & Tag assay confirmed the expression of HOXC9 in the H9-derived spinal cord NSCs, which can be maintained for more than 40 days under an in vitro culture system. This study sheds new light on effective induction and maintenance of human spinal cord NSCs.
    Materialart: Online-Ressource
    ISSN: 0959-4965
    Sprache: Englisch
    Verlag: Ovid Technologies (Wolters Kluwer Health)
    Publikationsdatum: 2022
    ZDB Id: 2031485-1
    Standort Signatur Einschränkungen Verfügbarkeit
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