Abstract: There is provided methods of determining tuberculosis (TB) infection status in an individual comprising: (i) providing a sample comprising T-cells; (ii) exposing the sample of (i) to one or more TB antigens; (iii) identifying T-cells in the sample that are CD4 positive and (a) secrete TNF-? without secreting IFN-?; or (b) secrete IFN-? without secreting TNF-?; (iv) identifying those cells of (iii) which are also CCR7 and, CD127 negative; and optionally (v) calculating the cells identified in (iv) as a percentage of those identified in (iii); wherein the identification of cells in (iv) and/or the percentage of T-cells calculated in (v) correlates to TB infection status of the individual, and wherein steps (iii) and (iv) can be carried out either sequentially or simultaneously. There are also provided compositions and kits for use in such methods.
Type:
Grant
Filed:
November 30, 2020
Date of Patent:
December 21, 2021
Assignee:
MJO Innovations Limited
Inventors:
Ajit Lalvani, Katrina Mary Pollock, Graham Taylor, Hilary Sian Whitworth
Abstract: There is provided methods of determining tuberculosis (TB) infection status in an individual comprising: (i) providing a sample comprising T-cells; (ii) exposing the sample of (i) to one or more TB antigens; (iii) identifying T-cells in the sample that are CD4 positive and (a) secrete TNF-? without secreting IFN-?; or (b) secrete IFN-? without secreting TNF-?; (iv) identifying those cells of (iii) which are also CCR7 and, CD127 negative; and optionally (v) calculating the cells identified in (iv) as a percentage of those identified in (iii); wherein the identification of cells in (iv) and/or the percentage of T-cells calculated in (v) correlates to TB infection status of the individual, and wherein steps (iii) and (iv) can be carried out either sequentially or simultaneously. There are also provided compositions and kits for use in such methods.
Type:
Grant
Filed:
July 3, 2018
Date of Patent:
January 5, 2021
Assignee:
MJO INNOVATION LIMITED
Inventors:
Ajit Lalvani, Katrina Mary Pollock, Graham Taylor, Hilary Sian Whitworth
Abstract: There is provided methods of determining tuberculosis (TB) infection status in an individual comprising: (i) providing a sample comprising T-cells; (ii) exposing the sample of (i) to one or more TB antigens; (iii) identifying T-cells in the sample that are CD4 positive and (a) secrete TNF-? without secreting IFN-?; or (b) secrete IFN-? without secreting TNF-?; (iv) identifying those cells of (iii) which are also CCR7 and, CD127 negative; and optionally (v) calculating the cells identified in (iv) as a percentage of those identified in (iii); wherein the identification of cells in (iv) and/or the percentage of T-cells calculated in (v) correlates to TB infection status of the individual, and wherein steps (iii) and (iv) can be carried out either sequentially or simultaneously. There are also provided compositions and kits for use in such methods.
Type:
Grant
Filed:
September 4, 2014
Date of Patent:
August 7, 2018
Assignee:
MJO Innovation Limited
Inventors:
Ajit Lalvani, Katrina Mary Pollock, Graham Taylor, Hilary Sian Whitworth