Target Cells
Target Cells - Related Videos
09:24
Molecular Imaging to Target Transplanted Muscle Progenitor Cells
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Cited by 3 •
2013
A non-invasive means to evaluate the success of myoblast transplantation is described. The method takes advantage of a unified fusion reporter gene composed of genes whose expression can be imaged with different imaging modalities. Here, we make use of a fluc reporter gene sequence to target cells via bioluminescence imaging.
09:51
Establishment of Genome-edited Human Pluripotent Stem Cell Lines: From Targeting to Isolation
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Cited by 18 •
2016
Genome editing of human pluripotent stem cells (hPSCs) can be done quickly and efficiently. Presented here is a robust experimental procedure to genetically engineer hPSCs as exemplified by editing the AAVS1 safe harbor locus to express EGFP and introduce antibiotic resistance.
08:26
Cell Labeling and Targeting with Superparamagnetic Iron Oxide Nanoparticles
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Cited by 20 •
2015
Targeted cell delivery is useful in a variety of biomedical applications. The goal of this protocol is to use superparamagnetic iron oxide nanoparticles (SPION) to label cells and thereby enable magnetic cell targeting approaches for a high degree of control over cell delivery and localization.
12:09
The Use of Fluorescent Target Arrays for Assessment of T Cell Responses In vivo
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Cited by 12 •
2014
The ability to monitor T cell responses in detail in vivo is important for the development of our understanding of the immune response. Here we describe the use of fluorescent target arrays (FTAs) in an in vivo T cell assay that assesses >250 parameters simultaneously by flow cytometry.
01:22
Target Cell Response to Hormones
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2024
Hormones intricately bind to receptors on the surface or within target cells, initiating a cascade of cellular responses. Notably, the cellular response can be regulated by altering the number of receptors expressed in the cell. For example, prolonged exposure to elevated hormone levels results in a gradual decline or down-regulation in the number of receptors for that specific hormone on the cell surface. Conversely, in response to low hormone levels, cells may use up-regulation, producing an...
FAQs
Target-cell specificity depends on molecular recognition rather than simple exposure to a signal. A cell must possess the receptor or intracellular machinery needed to recognize a particular ligand. This requirement filters signals such as hormones, neurotransmitters, and cytokines, allowing only cells with the appropriate molecular components to initiate a response across tissues.
Receptors and intracellular machinery connect ligand recognition with cellular activity. Once the relevant interaction occurs, signaling pathways can modify gene expression, enzyme activity, membrane transport, or cell behavior. Examining these components therefore links the presence of a signal to the particular functional change observed in a target cell.
Different tissues may respond differently because their cells do not necessarily possess the same molecular equipment. Even when a hormone, neurotransmitter, or cytokine reaches several tissues, only cells with the matching receptor or intracellular machinery can translate that signal into a response. This arrangement coordinates organism-wide processes while preserving tissue-specific outcomes.
Biologists can identify target cells by connecting a cellular response with the presence of the relevant receptor or intracellular machinery. They examine whether candidate cells show changes in gene expression, enzyme activity, membrane transport, or behavior after ligand recognition. This approach distinguishes a genuine signaling response from simple contact with a widely distributed signal.
Identifying target cells connects molecular communication with disease mechanisms and therapeutic design. Knowing which cells can respond to a signal helps researchers examine how disrupted signaling affects tissues and evaluate drugs or targeted biological interventions. The approach is relevant to processes including growth, metabolism, immune defense, and reproduction, where selective cellular responses shape biological outcomes.
Target-cell analysis can clarify how organisms coordinate growth, metabolism, immune defense, and reproduction. Researchers can ask which cells respond to a hormone, neurotransmitter, cytokine, or other ligand and determine whether the outcome involves gene expression, enzyme activity, membrane transport, or cell behavior. These observations connect signaling events with broader physiological functions.