Klf4 Klf5 Smad1
Klf4 Klf5 Smad1 - Related Videos
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Cited by 41 •
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Induced pluripotent stem cells (iPSCs) are somatic cells that have been genetically reprogrammed to form undifferentiated stem cells. Like embryonic stem cells, iPSCs can be grown in culture conditions that promote differentiation into different cell types. Thus, iPSCs may provide a potentially unlimited source of any human cell type, which is a major breakthrough in the field of regenerative medicine. However, more research into the derivation and differentiation of iPSCs is still needed to...
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Cited by 17 •
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This protocol describes a detailed method for efficient generation of integration-free iPSCs from human adult peripheral blood cells. With the use of four oriP/EBNA-based episomal vectors to express the reprogramming factors, KLF4, MYC, BCL-XL, or OCT4 and SOX2, thousands of iPSC colonies can be obtained from 1 mL of peripheral blood.
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Cited by 16 •
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We propose a protocol for reprogramming peripheral blood mononuclear cells (PBMCs) into induced pluripotent stem cells (iPSCs). By plating the transduced blood cells onto matrix-coated plates with centrifugation, iPSCs are successfully induced from floating cells. This technique suggests a simple and effective reprogramming protocol for cells such as PBMCs and CBMCs.
FAQs
Their roles can be viewed as complementary regulatory inputs. KLF4 and KLF5 recognize particular DNA sequences through zinc-finger domains, whereas SMAD1 responds to bone morphogenetic protein signaling and works with other factors at target genes. Examining these activities together helps connect extracellular signaling with transcriptional changes that influence cell identity, proliferation, and differentiation.
Zinc-finger domains enable KLF4 and KLF5 to bind specific DNA sequences rather than acting as nonspecific regulators. This sequence recognition helps determine which genomic regulatory regions are positioned to respond to their activity. Consequently, studying these domains provides a way to relate factor binding with changes in gene expression and downstream cellular behavior.
Bone morphogenetic protein signaling provides the upstream context for SMAD1 activation. Once activated downstream of this pathway, SMAD1 partners with other factors to control transcription of target genes. This connection is important because it illustrates how a signaling pathway can influence developmental decisions, including changes associated with lineage commitment and tissue development.
A coordinated analysis considers DNA-directed regulation by KLF4 and KLF5 alongside signaling-responsive regulation involving SMAD1. Comparing their activity with changes in gene expression can help explain how cells maintain an identity, begin a new lineage program, or alter proliferation and differentiation. This integrated perspective is especially relevant when cellular behavior changes during development or regeneration.
These factors are particularly relevant to developmental biology, regenerative research, and studies of diseases involving abnormal growth or differentiation. In developmental settings, they help frame questions about tissue formation and lineage decisions. In regenerative and disease research, their coordinated activity offers context for examining how altered gene regulation may accompany changes in cellular identity or growth.
Investigations can relate regulatory activity to several observable biological outcomes, including maintenance of stem-cell states, lineage commitment, tissue development, proliferation, and differentiation. The value lies in connecting molecular regulation with cell-level behavior rather than examining gene expression in isolation. Such comparisons can clarify how signaling and transcriptional control contribute to normal or abnormal biological processes.