Heterozygous Cell Lines
Heterozygous Cell Lines - Related Videos
12:04
Engineering Oncogenic Heterozygous Gain-of-Function Mutations in Human Hematopoietic Stem and Progenitor Cells
0 Views •
Cited by 5 •
2023
Novel strategies to faithfully model somatic mutations in hematopoietic stem and progenitor cells (HSPCs) are necessary to better study hematopoietic stem cell biology and hematological malignancies. Here, a protocol to model heterozygous gain-of-function mutations in HSPCs by combining the use of CRISPR/Cas9 and dual rAAV donor transduction is described.
10:41
Generation of Dispersed Presomitic Mesoderm Cell Cultures for Imaging of the Zebrafish Segmentation Clock in Single Cells
0 Views •
Cited by 8 •
2014
Somitogenesis is a rhythmic developmental process that spatially patterns the body axis of vertebrate embryos. Previously, we developed transgenic zebrafish lines that use fluorescent reporters to observe the cyclic genes that drive this process. Here, we culture dispersed cells from these lines and image their oscillations over time in vitro.
09:33
The Tomato/GFP-FLP/FRT Method for Live Imaging of Mosaic Adult Drosophila Photoreceptor Cells
0 Views •
Cited by 24 •
2013
The Tomato/GFP-FLP/FRT method involves visualizing mosaic photoreceptor cells in living Drosophila. It can be used to follow individual photoreceptor cell fates in the retina for days or weeks. This method is ideal for studies of retinal degeneration and neurodegenerative diseases or photoreceptor cell development.
09:51
Establishment of Genome-edited Human Pluripotent Stem Cell Lines: From Targeting to Isolation
0 Views •
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.
11:31
Generating CRISPR/Cas9 Mediated Monoallelic Deletions to Study Enhancer Function in Mouse Embryonic Stem Cells
0 Views •
Cited by 23 •
2016
Experimental validation of enhancer activity is best approached by loss-of-function analysis. Presented here is an efficient protocol that uses CRISPR/Cas9 mediated deletion to study allele-specific regulation of gene transcription in F1 ES cells which contain a hybrid genome (Mus musculus129 x Mus castaneus).
FAQs
The two alleles can contribute differently to gene expression, allowing their interaction to shape cellular behavior. This makes the model useful for examining how a normal allele and a mutated allele function within the same cultured cell population. Observed effects may therefore reflect allele interplay rather than the isolated activity of only one genetic variant.
They allow researchers to observe whether a mutation produces a cellular effect when a different allele remains present at the same locus. If the altered allele influences the phenotype despite the other allele, the result can support investigation of dominant behavior. If effects emerge only under particular genetic or experimental conditions, the model can also inform studies of recessive traits.
Heterozygous lines preserve differences between the two homologous allele copies, whereas homozygous models do not represent that same allelic contrast. This distinction can make heterozygous systems more representative of genetic states found in many human disorders. Comparisons between the two model types help researchers determine how allele dosage or interaction affects gene function and cellular responses.
Exposing heterozygous cells to environmental or pharmacological conditions can show whether the two alleles contribute differently to the resulting cellular response. A condition may alter the visibility or significance of a disease-associated mutation, making the line useful for connecting genetic variation with treatment or environmental effects. Such observations support functional studies under controlled experimental conditions.
These lines support functional genomics by helping researchers examine the consequences of specific genetic variants in cells. They also provide models for disease-associated mutations, drug testing, and precision medicine research. Because both alleles remain represented, experimental findings can better reflect how genetic variation influences cellular behavior and may help distinguish responses associated with different genetic states.
A heterozygous genetic state can provide a cellular context for evaluating how a disease-associated mutation affects responses to pharmacological conditions. Researchers can use that context to connect allele-related cellular behavior with drug-testing results. The resulting information may help support precision medicine studies focused on how genetic variation influences the relevance or effectiveness of particular experimental treatments.