Analysis of DNA Fragmentation Using the JAM Assay. By Shailaja Kasibhatla et al., The JAM assay is based on labeling nuclear DNA of cycling cells with [3H]thymidine and harvesting samples on glass fiber filters. Apoptosis will generate DNA fragments small enough to pass through the glass fiber filter, resulting in decreased radioactivity of the particular sample. Cell-mediated cytotoxicity or cell killing mediated by cytotoxic T lymphocytes (CTL) can also be measured by this technique. - [Read Analysis Of DNA Fragmentation Using The JAM Assay (Subscription Required)]
Protocol allows you to measure the content of cyclic adenosine 3',5'-monophosphate (cyclic AMP or cAMP) in splenic B lymphocytes (B cells) in an enzyme-linked immunoassay. This protocol utilizes acetylation of cAMP to improve sensitivity and reduce interference. Protocol includes information on: how to determine cAMP, calculations and reagents and materials. - [Read Assay of Cyclic AMP in Lysates of Cells]
Protocol for estimating the number of CD38 molecules on the CD8+ T lymphocytes of HIV-infected individuals. Includes: RECOMMENDATION OF VENDOR FOR PE-CD38 AND PE-CD4; VALIDATION OF LOGARITHMIC AMPLIFIER LINEARITY AND SENSITIVITY; CONSERVATION OF THE LEVEL OF CD4 ANTIGEN EXPRESSION ON CD4+
LYMPHOCYTES AND ITS USE AS A BIOLOGIC STANDARD FOR FLOW CYTOMETER INSTRUMENT CHARACTERIZATION; DETERMINATION OF THE NUMBER OF CD38 MOLECULES PER CD8+ CELL; etc.. - [Read Estimating the Number of CD38 Molecules on the CD8+ T Lymphocytes of HIV-Infected Individuals]
Protocol for fluorescence in situ hybridization of a repetitive DNA probe to human chromosomes in suspension. Hybridization technique which does not need formamide and dextran sulfate. As a model system, we used the repetitive
specific human DNA probe pUC 1.77, labeled it with digoxigenin-11-dUTP by nick-translation, and hybridized it to
metaphase chromosomes in suspension. These chromosomes were isolated by standard techniques from human lymphocytes. - [Read Fluorescence In Situ Hybridization of a Repetitive DNA Probe to Human Chromosomes in Suspension]
This method measures the leakage of DNA and lactate dehydrogenase from lymphocytes into the surrounding medium as an indicator of cytotoxicity. This method also includes an assay of intracellular (mitochondrial) diaphorase as a measure of cellular activity (MTT assay). - [Read Human Lymphocyte Cytotoxicity Assay Protocol]
Describes methods for labeling high or low numbers of lymphocytes with CSFE. Protocols are provided to use CSFE-labeled cells in cell transfer studies or as cells to be cultured in vitro. Detailed guidelines for positioning of CSFE-labeled lymphocytes in lymphoid organs or other tissues are included for those wishing to use this approach to study lymphocyte migration. - [Read Intracellular Fluorescent Dye CFSE to Monitor Lymphocyte Migration and Proliferation]
Provides two protocols that may be used to isolate IHL. One can be used to isolate IHL from multiple livers in parallel, whereas the more elaborate alternate protocol yields more cells per liver but is more appropriately used to recover the IHL from a single liver. - [Read Isolation of Mouse Intrahepatic Lymphocytes Protocol]
Peyer’s Patch, and Lamina Propria Cells lymphocyte populations should be analyzed when studying the immunological status of the intestine, for example in oral immunization or in intestinal disease (including infectious disease and tumors). This protocol details techniques for isolation of IEL, PP cells, and LP cells from the small intestine of the mouse. - [Read Isolation of Mouse Small Intestinal Intraepithelial Lymphocytes Protocol]
Describes the isolation of resting B lymphocytes (B cells) from mouse spleens by using negative selection with anti-CD43 and anti-Mac-1/CD11b monoclonal antibodies coupled to magnetic microbeads. This strategy depletes non-B cells from a mixed population of splenocytes and relies on the fact that most mature leukocytes, with the exception of resting splenic B cells, express CD43. - [Read Isolation of Resting B Lymphocytes from One or More Groups of Four Mouse Spleens Protocol]
Protocol describes the isolation of resting B lymphocytes (B cells) from mouse spleens by using negative selection with anti-CD43 and anti-Mac-1/CD11b monoclonal antibodies coupled to magnetic microbeads. This strategy depletes non-B cells from a mixed population of splenocytes and relies on the fact that most mature leukocytes, with the exception of resting splenic B cells, express CD43. - [Read Isolation of Resting B Lymphocytes from Sixteen Mouse Spleens Protocol]
Describes the isolation of resting B lymphocytes (B cells) from mouse spleens by using negative selection with anti-CD43 and anti-Mac-1/CD11b monoclonal antibodies coupled to magnetic microbeads. This strategy depletes non-B cells from a mixed population of splenocytes and relies on the fact that most mature leukocytes, with the exception of resting splenic B cells, express CD43. - [Read Isolation of Resting B Lymphocytes from Sixteen Mouse Spleens Protocol]
This procedure describes the isolation of resting B lymphocytes (B cells) from mouse spleens by using negative selection with anti-CD43 and anti-Mac-1/CD11b monoclonal antibodies coupled to magnetic microbeads. This strategy depletes non-B cells from a mixed population of splenocytes and relies on the fact that most mature leukocytes, with the exception of resting splenic B cells, express CD43. - [Read Isolation of Resting B Lymphocytes Protocol]
Protocol describes a method for isolation and stimulation of lymphocytes. Leukocyte-rich plasma is collected from whole blood and then centrifuged through Ficoll-Hypaque. The collected cells are resuspended in growth medium containing various mitogens to stimulate growth. - [Read Lymphocyte Isolation and Culture Protocol]
MN in Human Lymphocytes (method and protocol description) Nina T. Holland, Division of Environmental Health Sciences, Berkeley - [Read Micronucleus assay Human Lymphocytes]
Molecular and genetic toxicology studies for in vitro cytogenetics with CHO or human lymphocytes. Includes: G401 Chromosomal Aberrations in Chinese Hamster Ovary (CHO) Cells, G401-2, G401-R, G401-R2, G401-R2H, G402 Chromosomal Aberrations in Human Lymphocytes, G402-2, G402-R, G402-R2, G402-R2H, G403 Sister Chromatid Exchanges in Chinese Hamster Ovary (CHO) Cells. - [Read Molecular and Genetic Toxicology Studies for In Vitro Cytogenetics with CHO or human lymphocytes]
This protocol provides a sufficient sample for several determinations of cAMP using the acetylation protocol. The method chosen for measuring the content of cyclic adenosine 3',5'-monophosphate (cyclic AMP or cAMP) in splenic B lymphocytes (B cells) is an enzyme linked immunoassay system. Protocol includes information on: Treatment of Cells and Preparation of Extracts; Reagents and Materials. - [Read Preparation of B-Lymphocyte Lysates for Cyclic AMP Determination]
Procedure permits the isolation of at least 5 µg of total RNA from a sample of purified mouse splenic B lymphocytes. The quality of the RNA is assessed by separation of an aliquot through 1% agarose and staining with ethidium bromide as described in AfCS protocol Visualization of RNA
Preparations on 1% Agarose Gels. The isolated RNA is used for analysis of gene expression by microarray technology.
analysis of gene expression by microarray technology. - [Read Preparation of B-Lymphocyte RNA for Microarray Analysis Protocol]