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US4420558A Expired / Lapsed US ⏱️ 0.0 years remaining

Bright field light microscopic method of enumerating and characterizing subtypes of white blood cells and their precursors

Assignee: Janssen Pharmaceutica NV
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Filing: 1981-10-29
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Granted: 1983-12-13
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Expires: 2001-10-29
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Abstract

Abstract A bright field light microscopic method for enumerating and characterizing subtypes of white blood cells and their precursors. The cells are labelled either directly or indirectly with gold-labelled antibodies in the presence of an inhibitor of oxidative phosphorylation.

Inventors

  • 👤 Jan R. De Mey
  • 👤 Marc K. J. J. Moeremans

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 17:36
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/48; G01N33/50; G01N33/53; G01N33/531; G01N33/532; Y; Y10; Y10S; Y10S435/00; Y10S435/962

Claims Analysis

Total Claims: 28
Claim 1
Independent Claim 126 words
A bright field light microscopic ethod for the quantitative determination and characterization of white blood cells and precursors thereof, which comprises the steps of (i) labeling viable cells of the desired subtype by allowing them to react first with specific non-labeled antibodies and thereafter with appropriate gold-labeled secondary antibodies, whereby the cells are, until fixation, allowed to undergo extensive patching of the antigens, but are prevented from capping and all forms of internalization by keeping them in contact with an effective concentration of an appropriate inhibitor of oxidative phosphorylation; (ii) fixing the cells and staining the cells with endogenous peroxidase activity by contacting them with an appropriate peroxidase-indicator; and (iii) counting and identifying the gold-labeled cells in a given sample under the bright field light microscope.
Claim 2
Dependent Claim 126 words
A bright field light microscopic ethod for the quantitative determination and characterization of white blood cells and precursors thereof, which comprises the steps of (i) labeling viable cells of the desired subtype by allowing them to react first with specific non-labeled antibodies and thereafter with appropriate gold-labeled secondary antibodies, whereby the cells are, until fixation, allowed to undergo extensive patching of the antigens, but are prevented from capping and all forms of internalization by keeping them in contact with an effective concentration of an appropriate inhibitor of oxidative phosphorylation; (ii) fixing the cells and staining the cells with endogenous peroxidase activity by contacting them with an appropriate peroxidase-indicator; and (iii) counting and identifying the gold-labeled cells in a given sample under the bright field light microscope.
Claim 3
Dependent Claim 117 words
A bright field light microscopic method for the quantitative determination and characterization of white blood cells and their precursors, comprising the steps of (i) labeling viable cells of the desired subtype by allowing them to react with specific gold-labeled antibodies, whereby the cells are, until fixation, allowed to undergo extensive patching of the antigens, but are prevented from capping and all forms of internalization by keeping them in contact with an effective concentration of an appropriate inhibitor of oxidative phosphorylation; (ii) fixing the cells and staining the cells with endogenous peroxidase activity by contacting them with an appropriate peroxidase-indicator; and (iii) counting and identifying the gold-labeled cells in a given sample under the bright field light microscope.
Claim 4
Dependent Claim 117 words
A bright field light microscopic method for the quantitative determination and characterization of white blood cells and their precursors, comprising the steps of (i) labeling viable cells of the desired subtype by allowing them to react with specific gold-labeled antibodies, whereby the cells are, until fixation, allowed to undergo extensive patching of the antigens, but are prevented from capping and all forms of internalization by keeping them in contact with an effective concentration of an appropriate inhibitor of oxidative phosphorylation; (ii) fixing the cells and staining the cells with endogenous peroxidase activity by contacting them with an appropriate peroxidase-indicator; and (iii) counting and identifying the gold-labeled cells in a given sample under the bright field light microscope.
Claim 5
Dependent Claim 132 words
A bright field light microscopic method for the quantitative determination and characterization of subtypes of white blood cells and their precursors, comprising the steps of (i) allowing viable cells of the desired subtype to react with specific non-labeled antibodies; (ii) labeling the thus formed complexes by allowing them to react with appropriate gold-labeled secondary antibodies, whereby the cells are, until fixation, allowed to undergo extensive patching of the antigens, but are prevented from capping and all forms of internalization by keeping them in contact with an effective concentration of an appropriate inhibitor of oxidative phosphorylation; (iii) fixing the cells and staining the cells with endogenous peroxidase activity by contacting them with an appropriate peroxidase-indicator; and (iv) counting and identifying the gold-labeled cells in a given sample under the bright field light microscope.
Claim 6
Dependent Claim 132 words
A bright field light microscopic method for the quantitative determination and characterization of subtypes of white blood cells and their precursors, comprising the steps of (i) allowing viable cells of the desired subtype to react with specific non-labeled antibodies; (ii) labeling the thus formed complexes by allowing them to react with appropriate gold-labeled secondary antibodies, whereby the cells are, until fixation, allowed to undergo extensive patching of the antigens, but are prevented from capping and all forms of internalization by keeping them in contact with an effective concentration of an appropriate inhibitor of oxidative phosphorylation; (iii) fixing the cells and staining the cells with endogenous peroxidase activity by contacting them with an appropriate peroxidase-indicator; and (iv) counting and identifying the gold-labeled cells in a given sample under the bright field light microscope.
Claim 7
Dependent Claim 114 words
A bright field light microscopic method for the quantitative determination and characterization of human T-lymphocytes which comprises the steps of (i) labeling said human T-lymphocytes by allowing them to react, in a viable state, with gold-labeled antibodies to human T-lymphocytes, whereby the cells are, until fixation, allowed to undergo extensive patching of the antigens, but are prevented from capping and all forms of internalization by keeping them in contact with an effective concentration of an appropriate inhibitor of oxidative phosphorylation; (ii) fixing the cells and staining the cells with endogenous peroxidase activity by contacting them with an appropriate peroxidase-indicator; and (iii) counting the peroxidase-negative gold-labeled cells in a given sample under the light microscope.
Claim 8
Dependent Claim 114 words
A bright field light microscopic method for the quantitative determination and characterization of human T-lymphocytes which comprises the steps of (i) labeling said human T-lymphocytes by allowing them to react, in a viable state, with gold-labeled antibodies to human T-lymphocytes, whereby the cells are, until fixation, allowed to undergo extensive patching of the antigens, but are prevented from capping and all forms of internalization by keeping them in contact with an effective concentration of an appropriate inhibitor of oxidative phosphorylation; (ii) fixing the cells and staining the cells with endogenous peroxidase activity by contacting them with an appropriate peroxidase-indicator; and (iii) counting the peroxidase-negative gold-labeled cells in a given sample under the light microscope.
Claim 9
Dependent Claim 128 words
A bright field light microscopic method for the quantitative determination and characterization of human T-lymphocytes which comprises the steps of (i) allowing said human T-lymphocytes to react, in a viable state, with non-labeled antibodies to human T-lymphocytes; (ii) labeling the thus formed complexes by allowing them to react with appropriate gold-labeled secondary antibodies, whereby the cells are, until fixation, allowed to undergo extensive patching of the antigens, but are prevented from capping and all forms of internalization by keeping them in contact with an effective concentration of an appropriate inhibitor of oxidative phosphorylation; (iii) fixing the cells and staining the cells with endogenous peroxidase activity by contacting them with an appropriate peroxidase indicator; and (iv) counting the peroxidase-negative gold-labeled cells in a given sample under the light microscope.
Claim 10
Dependent Claim 128 words
A bright field light microscopic method for the quantitative determination and characterization of human T-lymphocytes which comprises the steps of (i) allowing said human T-lymphocytes to react, in a viable state, with non-labeled antibodies to human T-lymphocytes; (ii) labeling the thus formed complexes by allowing them to react with appropriate gold-labeled secondary antibodies, whereby the cells are, until fixation, allowed to undergo extensive patching of the antigens, but are prevented from capping and all forms of internalization by keeping them in contact with an effective concentration of an appropriate inhibitor of oxidative phosphorylation; (iii) fixing the cells and staining the cells with endogenous peroxidase activity by contacting them with an appropriate peroxidase indicator; and (iv) counting the peroxidase-negative gold-labeled cells in a given sample under the light microscope.
Claim 11
Dependent Claim 118 words
A bright field light microscopic method for the quantitative determination of a subpopulation of human T-lymphocytes which comprises the steps of (i) labeling the cells of said subpopulation by allowing them to react, in a viable state, with gold-labeled antibodies to said subpopulation, whereby the cells are, until fixation, allowed to undergo extensive patching of the antigens, but are prevented from capping and all forms of internalization by keeping them in contact with an effective concentration of an appropriate inhibitor of oxidative phosphorylation; (ii) fixing the cells and staining the cells with endogenous peroxidase activity by contacting them with an appropriate peroxidase indicator; and (iii) counting the peroxidase-negative gold-labeled cells in a given sample under the light microscope.
Claim 12
Dependent Claim 118 words
A bright field light microscopic method for the quantitative determination of a subpopulation of human T-lymphocytes which comprises the steps of (i) labeling the cells of said subpopulation by allowing them to react, in a viable state, with gold-labeled antibodies to said subpopulation, whereby the cells are, until fixation, allowed to undergo extensive patching of the antigens, but are prevented from capping and all forms of internalization by keeping them in contact with an effective concentration of an appropriate inhibitor of oxidative phosphorylation; (ii) fixing the cells and staining the cells with endogenous peroxidase activity by contacting them with an appropriate peroxidase indicator; and (iii) counting the peroxidase-negative gold-labeled cells in a given sample under the light microscope.
Claim 13
Dependent Claim 131 words
A bright field light microscopic method for the quantitative determination of a subpopulation of human T-lymphocytes which comprises the steps of (i) allowing the cells of said subpopulation to react, in a viable state, with non-labeled antibodies to said subpopulation; (ii) labeling the thus formed complexes by allowing them to react with appropriate gold-labeled secondary antibodies, whereby the cells are, until fixation, allowed to undergo extensive patching of the antigens, but are prevented from capping and all forms of internalization by keeping them in contact with an effective concentration of an appropriate inhibitor of oxidative phosphorylation; (iii) fixing the cells and staining the cells with endogenous peroxidase activity by contacting them with an appropriate peroxidase indicator; and (iv) counting the peroxidase-negative gold-labeled cells in a given sample under the light microscope.
Claim 14
Dependent Claim 131 words
A bright field light microscopic method for the quantitative determination of a subpopulation of human T-lymphocytes which comprises the steps of (i) allowing the cells of said subpopulation to react, in a viable state, with non-labeled antibodies to said subpopulation; (ii) labeling the thus formed complexes by allowing them to react with appropriate gold-labeled secondary antibodies, whereby the cells are, until fixation, allowed to undergo extensive patching of the antigens, but are prevented from capping and all forms of internalization by keeping them in contact with an effective concentration of an appropriate inhibitor of oxidative phosphorylation; (iii) fixing the cells and staining the cells with endogenous peroxidase activity by contacting them with an appropriate peroxidase indicator; and (iv) counting the peroxidase-negative gold-labeled cells in a given sample under the light microscope.
Claim 15
Dependent Claim 15 words
The method of claim 6 wherein said subpopulation of human T-lymphocytes is the helper/inducer subpopulation.
Claim 16
Dependent Claim 15 words
The method of claim 6 wherein said subpopulation of human T-lymphocytes is the suppressor/cytotoxic subpopulation.
Claim 17
Dependent Claim 15 words
The method of claim 7 wherein said subpopulation of human T-lymphocytes is the helper/inducer subpopulation.
Claim 18
Dependent Claim 15 words
The method of claim 7 wherein said subpopulation of human T-lymphocytes is the suppressor/cytotoxic subpopulation.
Claim 19
Dependent Claim 112 words
A bright field light microscopic method for the quantitative determination of human monocytes which comprises the steps of (i) labeling said monocytes by allowing them to react, in a viable state, with gold-labeled antibodies to human monocytes, whereby the cells are, until fixation, allowed to undergo extensive patching of the antigens, but are prevented from capping and all forms of internalization by keeping them in contact with an effective concentration of an appropriate inhibitor of oxidative phosphorylation; (ii) fixing the cells and staining the cells with endogenous peroxidase activity by contacting them with an appropriate peroxidase indicator; and (iii) counting the peroxidase-positive gold-labeled cells in a given sample under the light microscope.
Claim 20
Dependent Claim 112 words
A bright field light microscopic method for the quantitative determination of human monocytes which comprises the steps of (i) labeling said monocytes by allowing them to react, in a viable state, with gold-labeled antibodies to human monocytes, whereby the cells are, until fixation, allowed to undergo extensive patching of the antigens, but are prevented from capping and all forms of internalization by keeping them in contact with an effective concentration of an appropriate inhibitor of oxidative phosphorylation; (ii) fixing the cells and staining the cells with endogenous peroxidase activity by contacting them with an appropriate peroxidase indicator; and (iii) counting the peroxidase-positive gold-labeled cells in a given sample under the light microscope.
Claim 21
Dependent Claim 125 words
A bright field light microscopic method for the quantitative determination of human monocytes which comprises the steps of (i) allowing said monocytes to react, in a viable state, with non-labeled antibodies to human monocytes; (ii) labeling the thus formed complexes by allowing them to react with appropriate gold-labeled secondary antibodies, whereby the cells are, until fixation, allowed to undergo extensive patching of the antigens, but are prevented from capping and all forms of internalization by keeping them in contact with an effective concentration of an appropriate inhibitor of oxidative phosphorylation; (iii) fixing the cells and staining the cells with endogenous peroxidase activity by contacting them with an appropriate peroxidase indicator; and (iv) counting the peroxidase-positive gold-labeled cells in a given sample under the light microscope.
Claim 22
Dependent Claim 125 words
A bright field light microscopic method for the quantitative determination of human monocytes which comprises the steps of (i) allowing said monocytes to react, in a viable state, with non-labeled antibodies to human monocytes; (ii) labeling the thus formed complexes by allowing them to react with appropriate gold-labeled secondary antibodies, whereby the cells are, until fixation, allowed to undergo extensive patching of the antigens, but are prevented from capping and all forms of internalization by keeping them in contact with an effective concentration of an appropriate inhibitor of oxidative phosphorylation; (iii) fixing the cells and staining the cells with endogenous peroxidase activity by contacting them with an appropriate peroxidase indicator; and (iv) counting the peroxidase-positive gold-labeled cells in a given sample under the light microscope.
Claim 23
Dependent Claim 14 words
The method of claim 6 wherein said inhibitor of oxidative phosphorylation is sodium azide.
Claim 24
Dependent Claim 14 words
The method of claim 7 wherein said inhibitor of oxidative phosphorylation is sodium azide.
Claim 25
Dependent Claim 14 words
The method of claim 8 wherein said inhibitor of oxidative phosphorylation is sodium azide.
Claim 26
Dependent Claim 14 words
The method of claim 9 wherein said inhibitor of oxidative phosphorylation is sodium azide.
Claim 27
Dependent Claim 14 words
The method of claim 10 wherein said inhibitor of oxidative phosphorylation is sodium azide.
Claim 28
Dependent Claim 14 words
The method of claim 11 wherein said inhibitor of oxidative phosphorylation is sodium azide.

References Cited (Backward Citations)

US3916205A Cited
US4146604A Cited
US4148870A Cited
US3988115A Cited
US4313734A Cited
US4225783A Cited
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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1986-12-12 1987-06-13 1987-12-13 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1990-12-12 1991-06-13 1991-12-13 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1994-12-12 1995-06-13 1995-12-13 $7700.00 Window Closed / Lapsed

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