neurilemmoma/hypoxie

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13 Ergebnisse

Tanshinone IIA exerts antitumor activity against vestibular schwannoma cells by inhibiting the expression of hypoxia-inducible factor-1α.

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The aim of the present study was to evaluate the effect of the herbal medicine, tanshinone IIA (Tan IIA), on vestibular schwannoma (VS) cells and assess the functional targets of Tan IIA. HEI‑193 cells and Nf2‑/‑mouse Schwann (SC4) cells were used to investigate the inhibitory effects of Tan IIA on

Hypoxia-induced miR-210 promoter demethylation enhances proliferation, autophagy and angiogenesis of schwannoma cells.

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Hypoxia, a dominant feature in cancer occurrence and evolution, exists throughout the progression of most malignant tumors. This study focused on the mechanism of hypoxia-induced miR-210 upregulation, and the miR-210 functions in schwannoma. We detected microvascular density, vascular endothelial

Combination chemotherapy of metastatic malignant schwannoma with vincristine, adriamycin, cyclophosphamide, and imidazole carboxamide: a case report.

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This report describes a patient with a 15-year history of schwannoma (peripheral nerve sheath sarcoma) who developed extensive pulmonary metastases associated with hypoxemia. Treatment with chemotherapy consisting of cyclophosphamide, vincristine, Adriamycin, and imidazole carboxamide resulted in a

Erythropoietin and erythropoietin receptor expression in vestibular schwannoma: potential role in tumor progression.

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OBJECTIVE Hypoxia-inducible factor (HIF)-1alpha, erythropoietin (Epo), Epo receptor (EpoR), and bcl-2 are expressed in both sporadic unilateral vestibular schwannomas (VSs) and those associated with neurofibromatosis Type 2, and the expression data correlate with clinicopathological tumor features

Tumor Biology of Vestibular Schwannoma: A Review of Experimental Data on the Determinants of Tumor Genesis and Growth Characteristics.

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OBJECTIVE Provide an overview of the literature on vestibular schwannoma biology with special attention to tumor behavior and targeted therapy. BACKGROUND Vestibular schwannomas are benign tumors originating from the eighth cranial nerve and arise due to inactivation of the NF2 gene and its product

Gene expression profiles between cystic and solid vestibular schwannoma indicate susceptible molecules and pathways in the cystic formation of vestibular schwannoma.

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Previous research has shown that although NF2 gene mutation is the major cause of vestibular schwannoma (VS), it may not directly participate in cystic VS (CVS). To elucidate the underlying potential genetic mechanisms in the cystic formation of VS, we compared differences in gene expression between

Difference in the hypoxic immunosuppressive microenvironment of patients with neurofibromatosis type 2 schwannomas and sporadic schwannomas.

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Neurofibromatosis type 2 (NF2) patients uniformly develop multiple schwannomas. The tumor-microenvironment (TME) is associated with hypoxia and consists of immunosuppressive cells, including regulatory T cells (Tregs) and tumor-associated macrophages (TAMs). The hypoxic TME of NF2

[Diagnosis and treatment for postoperative lobar torsion].

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OBJECTIVE To analyze retrospectively 8 cases of postoperative lobar torsion after thoracotomy. METHODS 8 cases of postoperative lobar torsion were collected (5 men and 3 women; median age, 55.0 +/- 7.7 years), including lobectomy 4 (left upper lobe of lung 2, right upper lobe of lung 2), esophageal

18F-FDG uptake on PET in primary mediastinal non-thymic neoplasm: a clinicopathological study.

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BACKGROUND The usefulness of 2-[(18)F]-fluoro-2-deoxy-D-glucose ((18)F-FDG) positron emission tomography (PET) has been investigated in thymic epithelial tumors. However, little is known about PET imaging of (18)F-FDG in primary non-thymic mediastinal neoplasms. The aim of this study is to explore

[Pulmonary thromboembolism after videothoracoscopic excision of a mediastinal tumor; report of a case].

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We experienced a case of pulmonary thromboembolism after videothoracoscopic excision of a mediastinal tumor. A 57-year-old woman underwent videothoracoscopic excision of an upper mediastinal tumor, which was pathologically diagnosed as neurilemmoma. On the first postoperative day, she suddenly

Quantifying Long-Term Retention of Excised Fat Grafts: A Longitudinal, Retrospective Cohort Study of 108 Patients Followed for Up to 8.4 Years.

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BACKGROUND Predicting the degree of fat graft retention is essential when planning reconstruction or augmentation with free fat grafting. Most surgeons observe volume loss over time after fat grafting; however, the portion lost to resorption after surgery is still poorly defined, and the time to

The prognostic value of the Na⁺/ H⁺ exchanger regulatory factor 1 (NHERF1) protein in cancer.

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NHERF1 (Na⁺/H⁺ exchanger regulatory factor) is a scaffolding protein, consists of two tandem PDZ domains linked to a carboxyl-terminal ezrin-binding region. NHERF1 recruits macromolecular complexes at the apical membrane of epithelial cells in many epithelial tissues. It is involved in trafficking

Jugular foramen tumors: diagnosis and treatment.

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OBJECTIVE Jugular foramen tumors are rare skull base lesions that present diagnostic and complex management problems. The purpose of this study was to evaluate a series of patients with jugular foramen tumors who were surgically treated in the past 16 years, and to analyze the surgical technique,

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