CELLULAR-BASED METHOD FOR DETERMINING THE POTENCY OF DEFIBROTIDE

    公开(公告)号:US20230194502A1

    公开(公告)日:2023-06-22

    申请号:US18170644

    申请日:2023-02-17

    Applicant: GENTIUM S.R.L.

    CPC classification number: G01N33/5014 G01N33/5064

    Abstract: The present invention relates to cell-based methods for determining the biological activity of defibrotide. In particular, the invention provides a method for assessing the potency of defibrotide by assessing the viability of mammalian cells in the presence of at least one cytotoxic agent and one or more concentrations of defibrotide. Such methods are particularly useful for standardizing pharmaceutical compositions comprising defibrotide.

    COMPOSITIONS AND METHODS FOR REGULATING LEUKOCYTE ADHESION

    公开(公告)号:US20180207238A1

    公开(公告)日:2018-07-26

    申请号:US15746484

    申请日:2016-07-29

    Inventor: Brant E. Isakson

    Abstract: Inflammatory cell recruitment to local sites of tissue injury and/or infection is controlled by many signaling processes influencing cell-to-cell interactions between vascular endothelial cells (EC) in post-capillary venules and circulating leukocytes. Here we report that the ATP-release channel Pannexin1 (Panx1) opens downstream of EC activation by tumor necrosis factor α (TNF α). This process involves activation of Type 1 TNF receptors, recruitment of Src Family Kinases (SFK), and SFK-dependent phosphorylation of Panx1. We report a previously unidentified role for Panx1 channels in promoting leukocyte adhesion and emigration through the venous wall during acute systemic inflammation. The present application further discloses that Panx IL2 peptide consisting of amino acid sequence KYPIVEQYLKYGRKKQRR (SEQ ID NO: 3) or 10Panx1 peptide consisting of amino acid sequence WRQAAFVDSY (SEQ ID NO: 8) are inhibitors of leukocyte adhesion.

    MECHANICAL STRESS RESPONSE ANALYSIS OF CELLS AND TISSUES
    10.
    发明申请
    MECHANICAL STRESS RESPONSE ANALYSIS OF CELLS AND TISSUES 审中-公开
    机械应力响应分析细胞和组织

    公开(公告)号:US20170059557A1

    公开(公告)日:2017-03-02

    申请号:US15253650

    申请日:2016-08-31

    CPC classification number: G01N33/5032 C40B30/06 G01N33/5064 G01N33/54373

    Abstract: A method and device are disclosed for inducing mechanical stress in a cellular sample to evaluate mechanotransduction in the cellular sample. In one embodiment, the mechanical stress is induced by generating a microcavitation bubble in the cellular sample using a pulsed energy. The microcavitation bubble creates a microtsunami, which provides a transient, impulsive mechanical stress on the cellular sample, forming a gradient of effects at distances away from the microcavitation bubble.

    Abstract translation: 公开了用于在细胞样品中诱导机械应力以评估细胞样品中的机械转导的方法和装置。 在一个实施例中,通过使用脉冲能量在细胞样品中产生微气泡来诱导机械应力。 微气泡产生微孔,其在细胞样品上提供瞬时的脉冲机械应力,在远离微气泡的距离处形成效应的梯度。

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