Inhibition of Period Gene Expression Causes Repression of Cell Cycle Progression and Cell Growth in the Bombyx mori Cells

In this study, an animal model with a single BmPer gene product was selected to investigate the effect of Per-KD on the cell cycle and avoid the interaction of multiple Per expression products. There have been no previous reports of cell cycle changes after simultaneous knockdown or knockout of all mPer genes. A slow growing developmental model expressing a single BmPer gene that was continually knocked down in BmN cells (Per-KD) was used in this study. The BmN cells were free of endocrine influences. We compared cell proliferation and programmed cell death (PCD) and investigated the regulatory mechanisms in mutant and wild-type BmN cells. Materials and Methods Cell Preparation A wild-type (WT) B. mori ovary cell line (BmN) and a mutant line with stable interference of the BmPer gene (Per-KD) (Tao et al., 2017), were maintained in our laboratory and cultured in Grace insect medium (11605094, GIBCO, United States) with 10% (v/v) fetal bovine serum (FBS) (04-121-1A; Biological Industries, United States) at 26°C in the dark. The medium for culture of Per-KD cells included 0.05 mg/mL Zeocin (R25001, Invitrogen, United States). As shown in Figure 1, cell lines were synchronized by 24 h culture in serum-free Grace insect medium. The medium was then replaced with Grace insect medium with 10% FBS (v/v). The cells were counted and adjusted to the desired concentration. The time at which the synchronization process ended was recorded as time 0 h after synchronization. FIGURE ...
Source: Frontiers in Physiology - Category: Physiology Source Type: research

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Re: Yang CJ, Kumar A, Gulack BC, Mulvihill MS, Hartwig MG, Wang X, et  al. Long-term outcomes after lobectomy for non–small cell lung cancer when unsuspected pN2 disease is found: A National Cancer Data Base analysis. J Thoracic Cardiovasc Surg. 2016;151:1380-8.
Source: The Journal of Thoracic and Cardiovascular Surgery - Category: Cardiovascular & Thoracic Surgery Tags: Notice of Correction Source Type: research
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Source: Public Policy Reports - Category: Biology Authors: Source Type: news
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Source: Public Policy Reports - Category: Biology Authors: Source Type: news
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Source: Public Policy Reports - Category: Biology Authors: Source Type: news
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Source: Public Policy Reports - Category: Biology Authors: Source Type: news
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Source: AllAfrica News: Health and Medicine - Category: African Health Source Type: news
Gliomas account for approximately 80% of primary malignant tumors in the central nervous system. Despite aggressive therapy, the prognosis of patients remains extremely poor. Glioma stem cells (GSCs), considered a potential target of therapy for their crucial role in therapeutic resistance and tumor recurrence, are believed to be key factors in the disappointing outcome. Here, we took advantage of GSCs as the cell model to perform high-throughput drug screening, and the old antibiotic clofoctol was identified as the most effective compound, showing reduction of colony formation and induction of apoptosis of GSCs. Moreover,...
Source: Journal of Clinical Investigation - Category: Biomedical Science Authors: Source Type: research
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Source: RSC - New J. Chem. latest articles - Category: Chemistry Authors: Source Type: research
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Source: RSC - Analyst latest articles - Category: Chemistry Authors: Source Type: research
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Source: Medicinal Chemistry Research - Category: Chemistry Source Type: research
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