Ccr7-negative T Cells
Ccr7-negative T Cells - Related Videos
06:56
Isolation of Double Negative αβ T Cells from the Kidney
0 Views •
Cited by 26 •
2014
DNabT cells are rare among peripheral T cells; however, they are abundant in certain non-lymphoid tissues. Difficulty of isolating DN T cells from non-lymphoid tissue hinders their functional analysis despite increasing recognized pathophysiologic significance. We describe a novel protocol for isolation of highly purified DN T cells from murine kidney.
03:06
Negative Immunomagnetic Selection: A Method to Purify B-cells from Peripheral Blood Mononuclear Cells
0 Views •
2023
The video explains a way to purify B-cells by immunomagnetic targeting and separation from peripheral blood mononuclear cells suspension. The method involve labeling unwanted cell types with specific antibodies or ligands (linked to magnetic particles) targeting specific cell surface proteins, to be depleted from the heterogenous cell suspension by magnetic separation.
07:35
A Non-invasive Way to Isolate and Phenotype Cells from the Conjunctiva
0 Views •
Cited by 5 •
2017
The exposed normal ocular surface consists of cornea and conjunctiva. Epithelial cells, goblet cells and immune cells are present in the conjunctiva. Here, a non-invasive, technique of impression cytology is described using an impression cytology device and flow cytometry to analyze immune cells in the conjunctiva.
01:23
Negative Regulator Molecules
0 Views •
2019
Positive regulators allow a cell to advance through cell cycle checkpoints. Negative regulators have an equally important role as they terminate a cell’s progression through the cell cycle—or pause it—until the cell meets specific criteria. Three of the best-understood negative regulators are p53, p21, and retinoblastoma protein (Rb). The regulatory roles of each of these proteins were discovered after faulty copies were found in cells with uncontrolled replication (i.e., cancer). These...
16:55
Isolation & Characterization of Hoechstlow CD45negative Mouse Lung Mesenchymal Stem Cells
0 Views •
Cited by 13 •
2011
In this article we demonstrate the isolation of murine resident lung mesenchymal stem cells (lung MSC), their expansion, characterization and analysis of immunomodulatory properties.
FAQs
CCR7 status provides a functional clue about where a T-cell subset is likely to participate. Cells lacking detectable CCR7 are less responsive to the lymphoid-tissue guidance signals CCL19 and CCL21, so they are less associated with lymph-node homing and more associated with peripheral-tissue migration. This distinction helps connect receptor expression with immune-cell distribution.
Their CCR7-negative phenotype commonly accompanies an effector-memory pattern, linking reduced lymphoid homing with immune activity outside lymphoid tissues. This association helps researchers interpret Ccr7-negative cells as a differentiated subset rather than simply as T cells defined by receptor absence. Studying the subset can therefore clarify relationships between T-cell differentiation, migration, and tissue-focused immune responses.
The main distinction concerns migration and tissue distribution. CCR7-expressing T cells can respond to CCL19 and CCL21, signals involved in movement into lymphoid tissues, whereas Ccr7-negative cells show reduced responsiveness to those cues. Comparing the two populations allows investigators to relate receptor status to lymph-node homing, peripheral-tissue localization, and differing immune-response patterns.
Flow cytometry can separate T-cell populations according to whether CCR7 is detectably expressed, creating a basis for comparing CCR7-negative and CCR7-positive subsets. These measurements support immunophenotyping, the characterization of cells by detectable features, and can help researchers examine how subset proportions relate to activation, differentiation, or an ongoing immune response.
Researchers use CCR7-based immunophenotyping to distinguish this subset from other T-cell populations and then follow its presence in an experimental or biological context. Because the phenotype is associated with effector-memory responses, tracking it can provide information about changes in T-cell differentiation and the distribution of immune cells during an investigated response.
This subset is studied in infection, cancer, autoimmunity, and tissue inflammation. In each setting, identifying Ccr7-negative cells can help researchers examine immune-cell localization and distinguish T-cell populations associated with peripheral tissues. The approach also supports comparisons of activation and differentiation patterns across disease-related or inflammatory immune responses.