Proliferation Assessment
Proliferation Assessment - Related Videos
02:23
Abnormal Proliferation
0 Views •
2021
Under normal conditions, most adult cells remain in a non-proliferative state unless stimulated by internal or external factors to replace lost cells. Abnormal cell proliferation is a condition in which the cell's growth exceeds and is uncoordinated with normal cells. In such situations, cell division persists in the same excessive manner even after cessation of the stimuli, leading to persistent tumors. The tumor arises from the damaged cells that replicate to pass the damage to the daughter...
02:23
Abnormal Proliferation
0 Views •
2023
Under normal conditions, most adult cells remain in a non-proliferative state unless stimulated by internal or external factors to replace lost cells. Abnormal cell proliferation is a condition in which the cell's growth exceeds and is uncoordinated with normal cells. In such situations, cell division persists in the same excessive manner even after cessation of the stimuli, leading to persistent tumors. The tumor arises from the damaged cells that replicate to pass the damage to the daughter...
10:57
Cell Cycle Analysis: Assessing CD4 and CD8 T Cell Proliferation After Stimulation Using CFSE Staining and Flow Cytometry
0 Views •
2023
Source: Perchet Thibaut1,2,3, Meunier Sylvain1,2,3, Sophie Novault4, Rachel Golub1,2,3 1 Unit for Lymphpoiesis, Department of Immunology, Pasteur Institute, Paris, France 2 INSERM U1223, Paris, France 3 Université Paris Diderot, Sorbonne Paris Cité, Cellule Pasteur, Paris, France 4 Flow Cytometry Platfrom, Cytometry and Biomarkers UtechS, Center for Translational Science, Pasteur Institute, Paris, France The cell cycle is a universal process of life. During the cell cycle, a cell undergoes...
05:38
Generation of Apical-Out Intestinal Organoids and Assessment of Organoid Proliferation Rate Using EdU-Labeling
0 Views •
Cited by 1 •
2025
Here, we describe a protocol for generating apical-out intestinal organoids from standard matrix-embedded organoid cultures. It also outlines the subsequent incorporation of EdU into actively proliferating cells and the semiautomatic quantification of EdU-positive cells.
02:54
DNA Synthesis Assay: A Technique to Assess DNA Synthesis in Proliferating Cells Using Radioactive Tritiated Thymidine Incorporation
0 Views •
2023
In this video, we determine the proliferative capacity of neuronal progenitor cells by measuring the incorporation of radioactive tracer tritiated thymidine into the DNA of cells. This technique can be used to study cell proliferation after treatment with certain drugs and growth factors.
FAQs
DNA synthesis readouts capture a cell’s commitment to produce genetic material before or during division. In this approach, a nucleotide analog can be incorporated into newly synthesized DNA, allowing researchers to quantify the fraction or activity of cells engaged in this process. The resulting signal links cellular growth behavior to activation or responses triggered by experimental stimuli.
Fluorescent dye dilution provides a division-linked readout: the measured signal decreases as labeled cells undergo successive divisions. This differs from assessing DNA synthesis or proliferation-associated marker expression, because it reflects dilution associated with cell division. The pattern can therefore indicate how extensively a stimulated cell population has divided.
Proliferation-associated markers report molecular features linked to a proliferative state, whereas nucleotide incorporation and dye dilution provide process-oriented evidence of DNA synthesis or repeated division. Comparing these readouts can give a broader picture of an immune-cell response, because activation may be examined through both cellular behavior and associated molecular expression. This distinction helps interpret what a measured signal represents.
The measured outcome depends on the stimulus applied to the cells, including antigens, pathogens, or treatments. These inputs may produce increased growth or reduced growth, making proliferation assessment useful for examining cellular responses rather than recording cell number alone. In immunology, the direction and extent of the change can help characterize activation and the effect of experimental conditions.
A basic workflow begins by selecting a cell population and an appropriate proliferation readout, then exposing the cells to an antigen, pathogen, or treatment of interest. Researchers subsequently assess DNA synthesis, proliferation-associated markers, or fluorescent dye dilution and compare the resulting pattern across experimental conditions. The selected measurement should match whether the study emphasizes activation, division, or altered host-cell growth.
In infection research, the assay can be used to examine how an infectious agent changes host-cell growth or immune-cell responses. Measurements may show whether exposure is associated with altered division or activation, while the choice of DNA synthesis, marker, or dye-based readout determines which aspect is emphasized. This makes the approach relevant to characterizing host-pathogen interactions.
Vaccine research can use proliferation measurements to evaluate immune responses to antigens. An antigen-associated increase in lymphocyte activity or division provides a cellular outcome that can be compared across experimental conditions. Because the method can quantify responses rather than merely describe them, it supports investigation of how candidate vaccines stimulate immunity and how those responses vary.
Therapeutic studies can apply proliferation assessment to determine whether a treatment changes immune-cell activity or host-cell growth. The result is not limited to a single readout: DNA synthesis, marker expression, and dye dilution offer different ways to document the response. Such measurements can help connect treatment exposure with cellular mechanisms relevant to infection or disease.