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  • 1
    Online Resource
    Online Resource
    SAGE Publications ; 2021
    In:  Integrative Cancer Therapies Vol. 20 ( 2021-01), p. 153473542199682-
    In: Integrative Cancer Therapies, SAGE Publications, Vol. 20 ( 2021-01), p. 153473542199682-
    Abstract: Tamoxifen is one of the medicines for adjuvant endocrine therapy of hormone-dependent breast cancer. However, development of resistance to tamoxifen occurs inevitably during treatment. This study aimed to determine whether sensitivity of tamoxifen-resistant breast cancer cells (TAM-R) could be reinstated by tetrandrine (Tet). Methods: All experiments were conducted in TAM-R cells derived from the MCF-7 breast cancer cell line by long-term tamoxifen exposure. Cell growth, apoptosis, and autophagy were end-points that evaluated the effect of Tet (0.9 μg/ml, 1.8 μg/ml, and 3.75 μg/ml) alone or in combination with TAM (1 μM). Cell apoptosis was determined by an ELISA assay and autophagy was determined by fluorescent staining using the Enzo autophagy detection kit. Immunoblotting was used to evaluate markers for apoptosis, autophagy, and related signal pathway molecules. Results: Growth of TAM-R cells was significantly inhibited by Tet. Combination of Tet with tamoxifen induced a greater inhibition on cell growth than tamoxifen alone, which was predominantly due to enhancement of pro-apoptotic effect of TAM by Tet. Autophagy was significantly inhibited in TAM-R cells treated with Tet plus TAM as shown by increased autophagosomes and the levels of LC3-II and p62. At 0.9 μg/ml, Tet increased the levels of both apoptosis and autophagy markers. Among them increase in p53 levels was more dramatic. Conclusions: Tet as a monotherapy inhibits TAM-R cells. Tet potentiates the pro-apoptotic effect of TAM via inhibition of autophagy.
    Type of Medium: Online Resource
    ISSN: 1534-7354 , 1552-695X
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2021
    detail.hit.zdb_id: 2101248-9
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  • 2
    In: DIGITAL HEALTH, SAGE Publications, Vol. 8 ( 2022-01), p. 205520762211027-
    Abstract: To evaluate the effects of intervention by “whole seamless connection of nursing from WeChat interactive platform” on stigma and quality of life of the patients with urinary system cancer. Methods Overall, 80 patients with urinary cancer were randomly divided (40 cases per group) into control and observation groups. Routine nursing was provided to the control group, whereas positive psychological intervention was provided to the intervention group through a “whole seamless connection of nursing from the WeChat interactive platform” in addition to routine nursing. The Chinese version of social impact and cancer patients’ quality of life scales were used to evaluate the effects before and after the intervention. Results After the intervention, the total score for stigma was significantly lower ( p  〈  0.01), while that of quality of life was higher ( p  〈  0.05) in the observation group relative to the control group. Conclusions The whole seamless connection of nursing from the WeChat interactive platform could reduce stigma and improve the quality of life of patients with urinary cancer.
    Type of Medium: Online Resource
    ISSN: 2055-2076 , 2055-2076
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2022
    detail.hit.zdb_id: 2819396-9
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  • 3
    In: Technology in Cancer Research & Treatment, SAGE Publications, Vol. 17 ( 2018-01), p. 153303381878140-
    Type of Medium: Online Resource
    ISSN: 1533-0346 , 1533-0338
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2018
    detail.hit.zdb_id: 2146365-7
    detail.hit.zdb_id: 2220436-2
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  • 4
    Online Resource
    Online Resource
    SAGE Publications ; 2020
    In:  Experimental Biology and Medicine Vol. 245, No. 1 ( 2020-01), p. 21-33
    In: Experimental Biology and Medicine, SAGE Publications, Vol. 245, No. 1 ( 2020-01), p. 21-33
    Abstract: Hemodynamic forces have an important role in venous intimal hyperplasia, which is the main cause of arteriovenous fistula dysfunction. Endothelial cells (ECs) constantly exposed to the shear stress of blood flow, converted the mechanical stimuli into intracellular signals, and interacted with the underlying vascular smooth muscle cells (VSMCs). Caveolin-1 is one of the important mechanoreceptors on cytomembrane, which is related to vascular abnormalities. Extracellular signal-regulated kinase1/2 (ERK1/2) pathway is involved in the process of VSMCs proliferation and migration. In the present study, we explore the effects of Caveolin-1-ERK1/2 pathway and uremia toxins on the endothelial cells and VSMCs following shear stress application. Different shear stress was simulated with a ECs/VSMCs cocultured parallel-plate flow chamber system. Low shear stress and oscillating shear stress up-regulated the expression of fibroblast growth factor-4, platelet-derived growth factor-BB, vascular endothelial growth factor-A, ERK1/2 phosphorylation in endothelial cells, and proliferation and migration of VSMCs but down-regulated the Caveolin-1 expression in endothelial cells. Uremia toxin induces the proliferation and migration of VSMCs but not in a Caveolin-1-dependent manner in the static environment. Low shear stress-induced proliferation and migration of VSMCs is inhibited by Caveolin-1 overexpression and ERK1/2 suppression. Shear stress-regulated VSMC proliferation and migration is an endothelial cells-dependent process. Low shear stress and oscillating shear stress exert atherosclerotic influences on endothelial cells and VSMCs. Low shear stress modulated proliferation and migration of VSMCs through Caveolin-1-ERK1/2 pathway, which suggested that Caveolin-1 and ERK1/2 can be used as a new therapeutic target for the treatment of arteriovenous fistula dysfunction. Impact statement Venous intimal hyperplasia is the leading cause of arteriovenous fistula (AVF) dysfunction. This article reports that shear stress-regulated vascular smooth muscle cells (VSMCs) proliferation and migration is an endothelial cell (EC)-dependent process. Low shear stress (LSS) and oscillating shear stress (OSS) exert atherosclerotic influences on the ECs and VSMCs. LSS-induced proliferation and migration of VSMCs is inhibited by Caveolin-1 overexpression and extracellular signal-regulated kinase1/2 (ERK1/2) suppression, which suggested that Caveolin-1 and ERK1/2 can be used as a new therapeutic target for the treatment of AVF dysfunction.
    Type of Medium: Online Resource
    ISSN: 1535-3702 , 1535-3699
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2020
    detail.hit.zdb_id: 2020856-X
    SSG: 12
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  • 5
    Online Resource
    Online Resource
    SAGE Publications ; 2021
    In:  Journal of International Medical Research Vol. 49, No. 9 ( 2021-09), p. 030006052110470-
    In: Journal of International Medical Research, SAGE Publications, Vol. 49, No. 9 ( 2021-09), p. 030006052110470-
    Abstract: Squamous cell carcinoma (SCC) is a malignant epithelial tumor originating from the bronchial epithelium that shows keratosis and/or intercellular bridges. Papillary squamous cell carcinoma (PSCC) is an extremely rare subtype of SCC that manifests with a unique intrabronchial papillary growth pattern. Surgical resection is still the first recommendation for localized noninvasive SCC. However, some patients are not candidates for surgical resection. With the development of interventional pulmonology, bronchoscopic interventional therapy has played a key role in the treatment of central airway tumors. Here, we report a case of noninvasive PSCC in the airway treated with an electric snare, argon plasma coagulation (APC), and cryotherapy. After removing the tumor by electrotomy, cryotherapy, and APC, the tumor was injected with Endostar 15 mg (3 ml) and cisplatin 20 mg (diluted to 3 ml with 0.9% normal saline) in six separate sites, once every 21 days. The tumor was eliminated, and the treatment was stopped after four treatment cycles. During the 1-year follow-up, there was no recurrence of PSCC in the airway. In this case, submucosal injections of Endostar combined with cisplatin was a feasible and effective endoscopic method for treating a low-grade intratracheal malignant tumor.
    Type of Medium: Online Resource
    ISSN: 0300-0605 , 1473-2300
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2021
    detail.hit.zdb_id: 2082422-1
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  • 6
    In: Cell Transplantation, SAGE Publications, Vol. 31 ( 2022-01), p. 096368972211029-
    Abstract: Genomic loss of mismatched human leukocyte antigen (HLA loss) is one of the most vital immune escape mechanisms of leukemic cells after allogeneic hematopoietic stem cell transplantation (allo-HSCT). However, the methods currently used for HLA loss analysis have some shortcomings. Limited literature has been published, especially in lymphoid malignancies. This study aims to evaluate the incidences, risk factors of HLA loss, and clinical outcomes of HLA loss patients. In all, 160 patients undergoing partially mismatched related donor (MMRD) transplantation from 18 centers in China were selected for HLA loss analysis with the next-generation sequencing (NGS)-based method, which was validated by HLA-KMR. Variables of the prognostic risk factors for HLA loss or HLA loss–related relapse were identified with the logistic regression or the Fine and Gray regression model. An HLA loss detection system, HLA-CLN [HLA chimerism for loss of heterozygosity (LOH) analysis by NGS], was successfully developed. Forty (25.0%) patients with HLA loss were reported, including 27 with myeloid and 13 with lymphoid malignancies. Surprisingly, 6 of those 40 patients did not relapse. The 2-year cumulative incidences of HLA loss (22.7% vs 22.0%, P = 0.731) and HLA loss–related relapse (18.4% vs 20.0%, P = 0.616) were similar between patients with myeloid and lymphoid malignancies. The number of HLA mismatches (5/10 vs 〈 5/10) was significantly associated with HLA loss in the whole cohort [odds ratio (OR): 3.15, P = 0.021] and patients with myeloid malignancies (OR: 3.94, P = 0.021). A higher refined-disease risk index (OR: 6.91, P = 0.033) and donor–recipient ABO incompatibility (OR: 4.58, P = 0.057) contributed to HLA loss in lymphoid malignancies. To sum up, HLA-CLN could overcome the limitations of HLA-KMR and achieve a better HLA coverage for more patients. The clinical characteristics and outcomes were similar in patients with HLA loss between myeloid and lymphoid malignancies. In addition, the results suggested that a patient with HLA loss might not always relapse.
    Type of Medium: Online Resource
    ISSN: 0963-6897 , 1555-3892
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2022
    detail.hit.zdb_id: 2020466-8
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  • 7
    Online Resource
    Online Resource
    SAGE Publications ; 2021
    In:  International Journal of Damage Mechanics Vol. 30, No. 10 ( 2021-11), p. 1524-1541
    In: International Journal of Damage Mechanics, SAGE Publications, Vol. 30, No. 10 ( 2021-11), p. 1524-1541
    Abstract: In the engineering application of high strength steel and surface strengthening steel, fisheye failure is often happened in high cycle fatigue. To explore the effect of fisheye failure on high cycle fatigue properties of materials, a high cycle fatigue life model was established based on the Murakami and Tanaka’s fatigue strength models. The model introduces the error circle to evaluate fisheye size, and discusses the influencing factors of fatigue strength. The results show that the size and depth of fisheye failure will affect performance of materials. The proposed model considering the size and depth of defect quantitatively shows the influence of fisheye details on material performance, and effectively predicts the high/ultra-high cycle fatigue life.
    Type of Medium: Online Resource
    ISSN: 1056-7895 , 1530-7921
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2021
    detail.hit.zdb_id: 2052623-4
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  • 8
    In: Technology in Cancer Research & Treatment, SAGE Publications, Vol. 17 ( 2018-01), p. 153303381878527-
    Type of Medium: Online Resource
    ISSN: 1533-0346 , 1533-0338
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2018
    detail.hit.zdb_id: 2146365-7
    detail.hit.zdb_id: 2220436-2
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  • 9
    Online Resource
    Online Resource
    SAGE Publications ; 2020
    In:  Journal of Biomaterials Applications Vol. 35, No. 1 ( 2020-07), p. 39-48
    In: Journal of Biomaterials Applications, SAGE Publications, Vol. 35, No. 1 ( 2020-07), p. 39-48
    Abstract: Currently, implantable fibrous medical devices still suffer from invisibility under current clinical imaging techniques. To address this problem, 2, 3, 5-triiodobenzoic acid (TIBA) was recruited as a contrast agent, and then a set of iodinated poly( p-dioxanone) (PPDO) fibers was fabricated via melt-spinning hybrid blends of PPDO with TIBA (PPDO/TIBA). The impact of TIBA content on the rheological behavior of blends was evaluated firstly. The physical, chemical, and thermal properties of PPDO/TIBA fibers were investigated accordingly by SEM, FTIR, DSC, and TGA. Moreover, the radiopaque property of PPDO/TIBA hybrid fibers as a potential radio-opacifying platform for medical devices was verified in vitro and in vivo. Finally, the accumulated release results of the hybrid fibers during in vitro degradation indicate the continual X-ray visibility of the hybrid fibers maintains for 22 days. This intriguing iodinated platform may pave the way for constructing fibrous materials with in-situ X-ray tracking property.
    Type of Medium: Online Resource
    ISSN: 0885-3282 , 1530-8022
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2020
    detail.hit.zdb_id: 2072559-0
    SSG: 12
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  • 10
    In: Experimental Biology and Medicine, SAGE Publications, Vol. 246, No. 15 ( 2021-08), p. 1750-1759
    Abstract: Alternative splicing (AS) is a critical regulatory process of gene expression. In bone marrow microenvironment, AS plays a critical role in mesenchymal stem cells fate determination by forming distinct isoforms of important regulators. As a spliceosome factor, U2AF1 is essential for the catalysis of pre-mRNA splicing, and its mutation can cause differential AS events. In the present study, by forced expression of mutant U2AF1 (U2AF1S34F) in the mouse bone marrow stroma OP9 cells, we determine AS changes in U2AF1S34F transduced OP9 cells and investigate their role in stroma cell biological functions. We find that abundant differential RNA splicing events are induced by U2AF1S34F in OP9 cells. U2AF1S34F causes increased generation of hydrogen peroxide, promotes production of cytokines and chemokines. U2AF1S34F transduced OP9 cells also exhibit dysfunction of mitochondria. RNA-seq data, gene ontology (GO), and gene set enrichment analysis reveal that differentially expressed genes downregulated in response to U2AF1S34F are enriched in peroxisome component and function. U2AF1S34F can also cause release of hydrogen peroxide from OP9 cells. Furthermore, we investigate the influence of U2AF1S34F-induced oxidative stress in stromal cells on hematopoietic cells. When co-culturing mouse bone marrow mononuclear cells with OP9 cells, the U2AF1S34F expressing OP9 cells induce phosphorylation of histone H2AX in hematopoietic cells. Collectively, our results reveal that mutant U2AF1-induced differential AS events cause oxidative stress in bone marrow stromal cells and can further lead to DNA damage and genomic instability in hematopoietic cells.
    Type of Medium: Online Resource
    ISSN: 1535-3702 , 1535-3699
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2021
    detail.hit.zdb_id: 2020856-X
    SSG: 12
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