Isis Innovation Limited

Other

Oxford Immunotec Limited

Mjo Innovation Limited

Mjo Innovations Limited

Isis Innovation Limtied

Lalvani, Kartar Singh

Lalvani, Ajit

Taylor, Robert Peter

Ajit Lalvani

Ansar Pathan

Graham Taylor

Katrina Mary Pollock

Hilary Sian Whitworth

Roger Brookes

Katie Ewer

Kartar Singh Lalvani

Robert Peter Taylor

Kerry Millington

Roger Hamilton Brookes

Alice Halliday

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-&#x3b1; without secreting IFN-&#x3b3;; or (b) secrete IFN-&#x3b3; without secreting TNF-&#x3b1;; (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.

Methods and kits for determining tuberculosis infection status

There is provided methods of determining(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-&#x3b1; without secreting IFN-&#x3b3;; or (b) secrete IFN-&#x3b3; without secreting TNF-&#x3b1;; (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.

A method of diagnosinginfection in a human, or of determining whether a human has been exposed to, comprising (i) contacting T-cells from said human with one or more of (a) a peptide having the sequence shown in SEQ ID NO 20, (b) a peptide having or comprising the sequence of at least 8 consecutive amino acids of the sequence shown in SEQ. ID NO 20; or (c) a peptide having or comprising a sequence which is capable of binding to a T-cell receptor which recognizes a peptide as defined in (a) or (b); and (ii) determining whether any of the said T-cells recognize said peptide, wherein steps (i) and (ii) are optionally carried out in vitro. The peptide is the product of the RV3615c gene.

Diagnostic mycobacterium tuberculosis test

A method of assaying for peptide-specific T-cells comprises adding peptide to a fluid sample of fresh peripheral blood mononuclear cells, and detecting a cytokine such as interferon-y produced by T-cells that have been pre-sensitized to the peptide. The assay method is quick and cheap and is expected to be useful for the study of various disease states including Hepatitis B, Hepatitis C, tuberculosis, malaria, HIV and influenza.

Assay method for peptide specific T-cells

A method of diagnosing in a host infection by or exposure to a mycobacterium which expresses ESAT-6 comprising (i) contacting a population of T cells from the host with one or more peptides or analogues selected from the peptides represented by SEQ ID NO:1 to 11 and analogues thereof which can bind a T cell receptor which recognises any of the said peptides, and (ii) determining whether the T cells of said T cell population recognise the peptide(s) and/or analogue(s). The method may performed in vivo. Peptides and a kit which enable the method to be carried out are provided.

Tuberculosis diagnostic test

A synergistic composition, or the use of that composition in the manufacture of a medicament, or a method of treatment including the use of that composition, for the treatment of hair loss and baldness, for combined, sequential or simultaneous administration, in any form, via any biological route. In its optimal embodiment the composition consists, in the form of a lotion: 1600-2400 IU/mL Vitamin A Palmitate, 0.64%-0.96% Thiamine Hydrochloride, 0.64%-0.96% Pyridoxine Hydrochloride, 4.8%-7.2% Niacinamide, 2.85%-5.2% D-Panthenol, 1.6%-2.4% L-Arginine, 3.6%-4.4% Methyl Sulphonyl Methane (MSM), 0.08%-0.12% Ginger Oil, 0.08%-0.12% Cinnamon Oil, 0.0996%-0.1494% Oleoresin Capsicum, 1.3%-1.95% Magnesium, 2.4%-3.6% Zinc, 0.192%-0.288% Manganese, 2.6%-3.9% Urea, 2.4%-3.6% Sodium Glycerophosphate, 4.8%-7.2% L-Lysine HCl, plus Preservatives, Co-solvent (Propylene Glycol), Fragrances, Anti-Oxidant, Cooling agent (Menthol), Emulsifier, and Vehicle (Purified water).

Composition for the treatment of hair loss and baldness

A method of assessing an intracellular pathogen infection and/or monitoring an intracellular pathogen infection in an individual comprises determining whether the individual has (a) T-cells that secrete IFN-&#x3b3; only, (b) T-cells that secrete IL-2 only or (c) T-cells that secrete both IFN-&#x3b3; and IL-2 in response to an intracellular pathogen antigen and optionally determining any change in this cytokine profile.

Clinical correlates

A method of assaying for peptide-specific T-cells comprises adding peptide to a fluid sample of fresh peripheral blood mononuclear cells, and detecting a cytokine such as interferon-&#x3b3; produced by T-cells that have been pre-sensitized to the peptide. The assay method is quick and cheap and is expected to be useful for the study of various disease states including Hepatitis B, Hepatitis C, tuberculosis, malaria, HIV and influenza.

A method of diagnosing in a host infection by or exposure to a mycobacterium which expresses ESAT-6 comprising (i) contacting a population of T cells from the host with one or more peptides or analogues selected from the peptides represented by SEQ ID NO:1 to 11 and analogues thereof which can bind a T cell receptor which recognizes any of the said peptides, and (ii) determining whether the T cells of said T cell population recognize the peptide(s) and/or analogue(s). The method may performed in vivo. Peptides and a kit which enable the method to be carried out are provided.

The invention provides a method of diagnosinginfection in a human, or of determining whether a human has been exposed to, comprising: (i) contacting T-cells from said human with one or more of (a) a peptide having the sequence shown in SEQ ID NO: 1; (b) a peptide having or comprising the sequence of at least 8 consecutive amino acids of the sequence shown in SEQ ID NO: 1; or (c) a peptide having or comprising a sequence which is capable of binding to a T-cell receptor which recognizes a peptide as defined in (a) or (b); and (ii) determining whether any of the said T-cells recognize said peptide, wherein steps (i) and (ii) are optionally carried out in vitro.

Diagnostic test

A method of diagnosing in a host infection by or exposure to a mycobacterium which expresses ESAT-6 comprising (i) contacting a population of T cells from the host with one or more peptides or analogues selected from the peptides represented by SEQ ID NO:1 to 11 and analogues thereof which can bind a T cell receptor which recognises any of the said peptides, and (ii) determining whether the T cells of said T cell population recognise the peptide(s) and/or analogue(s). The method may be performed in vivo. Peptides and a kit which enable the method to be carried out are provided.

Growing community of inventors

Oxford, United Kingdom

Ajit Lalvani