Publications by authors named "Qing-Feng Luo"

Context: Poziotinib and vonoprazan are two drugs mainly metabolized by CYP3A4. However, the drug-drug interaction between them is unknown.

Objective: To study the interaction mechanism and pharmacokinetics of poziotinib on vonoprazan.

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Article Synopsis
  • - Cytochrome 2C9 (CYP2C9) is a key enzyme in drug metabolism, affecting 15% of clinical drugs, and shows high genetic variability across different populations.
  • - In a study involving 931 individuals from the Chinese Han population, researchers identified 7 synonymous and 14 non-synonymous gene variations, including 4 new alleles leading to specific amino acid substitutions.
  • - The new variants exhibited similar protein expression to the wild-type CYP2C9 but had significantly lower enzyme activity with specific probe drugs, suggesting a need for further research into their clinical implications.
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Purpose: To study the potential drug-drug interactions between simvastatin and vonoprazan and to provide the scientific basis for rational use of them in clinical practice.

Methods: An incubation system was established with rat liver microsomes, and the main metabolite of vonoprazan M-I was detected by UPLC-MS/MS. The IC value of simvastatin was then calculated and its inhibitory mechanism against vonoprazan was also analyzed.

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Background: Biomarkers are important in the study of tumor processes for early detection and precise treatment. The biomarkers that have been previously detected are not useful for clinical application for primary colorectal carcinoma (PCRC). The aim of this study was to explore clinically valuable biomarkers of PCRC based on integrated bioinformatic analysis.

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Previous studies have suggested that Aurora-B may be involved in cancer metastasis. However, its role has been poorly evaluated in osteosarcoma (OS). The aim of this study was to investigate the correlation between Aurora-B expression and metastasis in human OS.

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The activation of PI3K/Akt and the overexpression of fatty acid synthase (FASN) are frequently observed in human osteosarcoma (OS). In the present study, in order to investigate the possible association between the phosphorylation of Akt and FASN expression, immunohistochemical staining was conducted on 24 OS specimens from patients with pulmonary metastasis, which revealed a significant positive correlation between phosphorylated Akt (p-Akt) and the expression of FASN (R=0.469, P=0.

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Lapatinib, an inhibitor of human epidermal growth factor receptor 2 (HER2) phosphorylation, has been reported to inhibit several types of tumors such as HER2-overexpressing breast cancer. However, the effect of lapatinib on the malignant phenotype of human osteosarcoma (OS) cells and the potential molecular mechanisms remain unclear. To elucidate the effect of lapatinib on OS, two OS cell lines, U2-OS and MG-63, were utilized in the present study.

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Background And Aim: The strategies of targeting valosin-containing protein (VCP) may have therapeutic potential for treating cancer metastasis. In this study, we aim to investigate the correlation of VCP protein expression in osteosarcoma (OS) tissues with pulmonary metastasis and its possible molecular mechanism.

Materials And Methods: Expression of VCP in 60 OS specimens was detected by immunohistochemistry (IHC) and the relationship with metastasis was analyzed.

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Aim: To investigate expression of stem cell marker Musashi-1 (Msi-1) in relationship to tumorigenesis and progression of intestinal-type gastric cancer (GC).

Methods: Endoscopic biopsy specimens and surgical specimens were obtained, including 54 cases of intestinal-type GC, 41 high-grade intraepithelial neoplasia, 57 low-grade intraepithelial neoplasia, 31 intestinal metaplasia, and 36 normal gastric mucosa. Specimens were fixed in 10% paraformaldehyde, conventionally dehydrated, embedded in paraffin, and sliced in 4-μm-thick serial sections.

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FASN plays an important role in the malignant phenotype of various tumors. Our previous studies show that inhibition FASN could induce apoptosis and inhibit proliferation in human osteosarcoma (OS) cell in vivo and vitro. The aim in this study was to investigate the effect of inhibition FASN on the activity of HER2/PI3K/AKT axis and invasion and migration of OS cell.

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Previous experimental evidence has suggested that fatty acid synthase (FASN) may be involved in cancer metastasis. However, its role has been poorly evaluated in osteosarcoma. The aim of this study was to investigate the correlation of FASN expression with pulmonary metastasis and the correlation of FASN expression with the Ki-67 antigen, a proliferation marker, in patients with osteosarcoma of the extremities.

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Background: Hedgehog (Hh) signaling plays an important role in both embryonic development and postnatal tissue homeostasis. Aberrant Hh activation results in a large variety of cancers. This study was designed to discover novel modulators in Hh signaling pathway.

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Background: Fatty acid synthase (FASN) is overexpressed in a variety of human cancers, and may be involved in cancer metastasis. Hence, the strategies targeted on FASN may have therapeutic potential for treating cancer metastasis.

Objectives: The aim of this study is to investigate the correlation of FASN expression with metastasis in human osteosarcoma.

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Cajanus cajan L. is a natural plant, which contains a lot of potential active components. In the present study, we identified the effects of the stilbene extract from Cajanus cajan L.

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Cajanus cajan (L) is a natural plant which contains a lot of potential active components. In the present study, we identified the effects of the stilbenes containing extract-fraction from Cajanus cajan L (sECC) on diet-induced (for 4 weeks) hypercholesterolemia in Kunming mice. All experimental mice were divided into 5 groups: control group, model group, sECC-treated with 200 or 100 mg/kg/day, and simvastatin group.

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