公开(公告)号：US20170269062A1

公开(公告)日：2017-09-21

申请号：US15612688

申请日：2017-06-02

Applicant: ACEA Biosciences, Inc.

Inventor： Yama A. Abassi ,  Li Zhao ,  Ning Ke ,  Xiaobo Wang ,  Xiao Xu

IPC: G01N33/50 ,  G01N33/543 ,  C12Q1/00

CPC classification number: G01N33/5014 ,  C12Q1/002 ,  C40B30/04 ,  G01N33/5011 ,  G01N33/5041 ,  G01N33/5438 ,  G01N2333/4716

Abstract: Methods of identifying whether a biologically active agent affects an oncogene addicted pathway within a cancer cell, by introducing a biologically active agent suspected of affecting an oncogene addicted pathway to a first well and a negative control to a second well, and introducing a stimulating agent that stimulates the oncogene addicted pathway to both wells; monitoring cell-substrate impedance of the two wells and optionally determining cell indices from impedance values; generating an impedance based curve for each of the two wells from the impedance values or from the cell indices; comparing the impedance-based curves to determine a degree of similarity; and if significantly different concluding the biologically active agent affects the oncogene addicted pathway within the cancer cells.

公开(公告)号：US09399787B2

公开(公告)日：2016-07-26

申请号：US13720124

申请日：2012-12-19

Applicant: ACEA BIOSCIENCES, INC

Inventor： Yama A. Abassi ,  Xiaobo Wang ,  Xiao Xu

IPC: G01R27/08 ,  C12Q1/00 ,  C12Q1/70 ,  C12Q1/02 ,  G01N27/02 ,  G01N33/50 ,  G01N33/543 ,  G01N33/483

CPC classification number: C12Q1/025 ,  C12Q1/002 ,  G01N27/02 ,  G01N33/4836 ,  G01N33/5014 ,  G01N33/5438

Abstract: A method of performing an assay of a response of two or more cell types to a test compound, including: providing a device for monitoring cell-substrate impedance, adding at least two different cell types to the device; adding at least one test compound to form at least two test compound wells; providing at least two control wells; monitoring impedance of the at least two test compound wells and of the at least two control wells at three or more time points after adding the at least one test compound; and analyzing measured impedance from the at least two test compound wells and from the at least two control wells at the three or more time points to obtain information on the response of the different cell types to the at least one test compound.

Abstract translation: 一种对测试化合物进行两种或多种细胞类型的反应测定的方法，包括：提供用于监测细胞 - 基底阻抗的装置，向装置添加至少两种不同的细胞类型; 加入至少一种测试化合物以形成至少两个测试化合物孔; 提供至少两个对照孔; 在加入至少一种测试化合物之后，在三个或更多个时间点监测所述至少两个测试化合物孔和所述至少两个对照孔的阻抗; 以及在所述三个或更多个时间点分析来自所述至少两个测试化合物孔和所述至少两个对照孔的测量阻抗，以获得关于所述不同细胞类型对所述至少一种测试化合物的响应的信息。

公开(公告)号：US20150185206A1

公开(公告)日：2015-07-02

申请号：US14541024

申请日：2014-11-13

Applicant: ACEA Biosciences, Inc.

Inventor： Yama A. Abassi ,  Naichen Yu ,  Josephine Atienza ,  Xiao Xu ,  Xiaobo Wang

IPC: G01N33/50 ,  G01N27/02

CPC classification number: G01N33/5041 ,  C12Q1/002 ,  G01N27/021 ,  G01N33/5014 ,  G01N33/5438 ,  G01N2333/4716 ,  G01N2333/705 ,  G01N2333/91205 ,  G01N2500/04 ,  G01N2500/10

Abstract: Use of cell-substrate impedance based methods for screening for agonists of G-Protein Coupled Receptors (GPCRs) or inhibitors of a Receptor Tyrosine Kinases (RTKs), identifying compounds that affect GPCR or RTK pathways, validating molecular targets involved in a GPCR or RTK signaling pathways, monitoring dose-dependent functional activation of GPCR or RTK; determining desensitization of a GPCR and identifying a compound capable of affecting RTK activity in cancer cell proliferation.

Abstract translation: 使用基于细胞底物阻抗的方法筛选G-蛋白偶联受体（GPCR）的激动剂或受体酪氨酸激酶（RTK）的抑制剂，鉴定影响GPCR或RTK途径的化合物，验证参与GPCR或RTK的分子靶标 信号通路，监测GPCR或RTK的剂量依赖性功能活化; 测定GPCR的脱敏作用并鉴定能够影响癌细胞增殖中的RTK活性的化合物。

公开(公告)号：US20130123136A1

公开(公告)日：2013-05-16

申请号：US13720124

申请日：2012-12-19

Applicant: ACEA BIOSCIENCES, INC

Inventor： Yama A. Abassi ,  Xiaobo Wang ,  Xiao Xu

IPC: C12Q1/02

CPC classification number: C12Q1/025 ,  C12Q1/002 ,  G01N27/02 ,  G01N33/4836 ,  G01N33/5014 ,  G01N33/5438

Abstract: A method of performing an assay of a response of two or more cell types to a test compound, including: providing a device for monitoring cell-substrate impedance, adding at least two different cell types to the device; adding at least one test compound to form at least two test compound wells; providing at least two control wells; monitoring impedance of the at least two test compound wells and of the at least two control wells at three or more time points after adding the at least one test compound; and analyzing measured impedance from the at least two test compound wells and from the at least two control wells at the three or more time points to obtain information on the response of the different cell types to the at least one test compound.

Abstract translation: 一种对测试化合物进行两种或多种细胞类型的反应测定的方法，包括：提供用于监测细胞 - 基底阻抗的装置，向装置添加至少两种不同的细胞类型; 加入至少一种测试化合物以形成至少两个测试化合物孔; 提供至少两个对照孔; 在加入至少一种测试化合物之后，在三个或更多个时间点监测所述至少两个测试化合物孔和所述至少两个对照孔的阻抗; 以及在所述三个或更多个时间点分析来自所述至少两个测试化合物孔和所述至少两个对照孔的测量阻抗，以获得关于所述不同细胞类型对所述至少一种测试化合物的响应的信息。

公开(公告)号：US20200348312A1

公开(公告)日：2020-11-05

申请号：US16833180

申请日：2020-03-27

Applicant: ACEA Biosciences, Inc.

Inventor： Xiao Xu ,  Yama A. Abassi ,  Xiaobo Wang ,  Jiangbo Gan

IPC: G01N33/68 ,  C12M1/12 ,  C12M1/34 ,  G01N33/50 ,  G01N33/483

Abstract: Methods for identifying compounds that modulate cellular responses stimulated by IgE, which include providing an impedance-based system that monitors cell-substrate impedance of cells on a substrate; introducing cells to the substrate of the system; adding at least one test compound and IgE to the cells, wherein the at least one test compound is suspected of modulating cell responses stimulated by the IgE; adding an antigen to the cells; monitoring the cell-substrate impedance of cells on the substrate; and analyzing the cell-substrate impedance to evaluate whether the at least one test compound alters a cellular response to stimulation with the IgE.

公开(公告)号：US10690677B2

公开(公告)日：2020-06-23

申请号：US15487349

申请日：2017-04-13

Applicant: ACEA Biosciences, Inc.

Inventor： Xiao Xu ,  Yama A. Abassi ,  Xiaobo Wang ,  Jiangbo Gan

IPC: G01N33/68 ,  C12M1/34 ,  C12M1/12 ,  G01N33/50 ,  G01N33/483

Abstract: Methods for identifying compounds that modulate cellular responses stimulated by IgE, which include providing an impedance-based system that monitors cell-substrate impedance of cells on a substrate; introducing cells to the substrate of the system; adding at least one test compound and IgE to the cells, wherein the at least one test compound is suspected of modulating cell responses stimulated by the IgE; adding an antigen to the cells; monitoring the cell-substrate impedance of cells on the substrate; and analyzing the cell-substrate impedance to evaluate whether the at least one test compound alters a cellular response to stimulation with the IgE.

公开(公告)号：US10539523B2

公开(公告)日：2020-01-21

申请号：US14092927

申请日：2013-11-28

Applicant: ACEA Biosciences, Inc.

Inventor： Xiaobo Wang ,  Wei Ouyang ,  Nan Li ,  Tianxing Wang ,  Xiaoyu Zhang ,  Xiao Xu ,  Yama A. Abassi

IPC: G01N27/02

Abstract: Devices, systems and methods for monitoring excitable cells, such as cardiomyocytes, on microelectrode arrays that couple the electro-stimulation of excitable cells to induce or regulate cardiomyocyte beating and the simultaneous measurement of impedance and extracellular recording to assess changes in cardiomyocyte beating, viability, morphology or electrophysical properties in response to a plurality of treatments.

公开(公告)号：US10533985B2

公开(公告)日：2020-01-14

申请号：US16020679

申请日：2018-06-27

Applicant: ACEA Biosciences, Inc.

Inventor： Xiaobo Wang ,  Yama A. Abassi ,  Biao Xi ,  Wen Fu Zhang ,  Xiao Xu

IPC: G01N33/483 ,  G01N33/487

Abstract: A system for monitoring cell-substrate impedance of excitable cells and monitoring the beating cycle of cardiomyocytes, the system including: a device for monitoring cell-substrate impedance at 20 millisecond time resolution, the device having one or more wells on a nonconductive substrate, wherein at least one well of the one or more wells comprises an electrode array fabricated on the substrate for measurement of cell-substrate impedance at 20 millisecond time resolution; an impedance analyzer that measures cell-substrate impedance from the at least one well at 20 millisecond time resolution; electronic circuitry that electrically connects the electrode array from the at least one well to the impedance analyzer; and a software program that analyzes the measured cell-substrate impedance.

公开(公告)号：US20190195861A1

公开(公告)日：2019-06-27

申请号：US16237382

申请日：2018-12-31

Applicant: ACEA Biosciences, Inc.

Inventor： Yama A. Abassi ,  Naichen Yu ,  Josephine Atienza ,  Xiao Xu ,  Xiaobo Wang

IPC: G01N33/50 ,  G01N27/02 ,  G01N33/543 ,  C12Q1/00

CPC classification number: G01N33/5041 ,  C12Q1/002 ,  G01N27/021 ,  G01N33/5014 ,  G01N33/5438 ,  G01N2333/4716 ,  G01N2333/705 ,  G01N2333/91205 ,  G01N2500/04 ,  G01N2500/10

Abstract: A method of identifying a therapeutic compound for treating cancer in a human subject, the method including: providing a device that measures cell-substrate impedance; culturing cancer cells in the at least two wells, wherein the cancer cells are obtained from a human subject and have a receptor tyrosine kinase (RTK) pathway; adding to a first well a proposed therapeutic compound that affects an RTK pathway and an RTK stimulating factor for the RTK pathway to form a test well, and adding to another well the RTK stimulating factor to form a control well; continuously monitoring cell-substrate impedance of the at least two wells; and determining a difference in impedance or optionally in cell index between the test well and control well; and if significantly different, concluding the proposed therapeutic compound is therapeutically active in the RTK pathway within the cancer cells of the human subject.

公开(公告)号：US20170205391A1

公开(公告)日：2017-07-20

申请号：US15478041

申请日：2017-04-03

Applicant: ACEA Biosciences, Inc.

Inventor： Nan Li ,  Xiaobo Wang ,  Yama A. Abassi ,  Biao Xi ,  Wen Fu Zhang ,  Xiao Xu

IPC: G01N33/487 ,  G01N33/50

CPC classification number: G01N33/48728 ,  G01N33/4836 ,  G01N33/5008 ,  G01N33/5014 ,  G01N33/5061 ,  G01N33/5073 ,  G01N2800/326 ,  G01N2800/52

Abstract: A method of determining a beating parameter of cells that undergo excitation contraction coupling, the method including providing a cell analysis device having a substrate and a sensor that measures cell adhesion or attachment to the substrate in millisecond time resolution; adding excitable cells capable of undergoing excitation contraction coupling to the substrate; monitoring cell adhesion or attachment of the excitable cells to the substrate in millisecond time resolution; and calculating one or more beating parameters from the monitored adhesion.