Subtopic Deep Dive

Krüppel-like Factor 4 in Stem Cell Pluripotency
Research Guide

What is Krüppel-like Factor 4 in Stem Cell Pluripotency?

Krüppel-like Factor 4 (KLF4) maintains embryonic stem cell pluripotency by regulating target genes and interacting with core transcription factors like Oct4 and Sox2.

KLF4, a zinc-finger transcription factor, is one of the Yamanaka factors essential for induced pluripotency. Studies show KLF4 promotes chromatin accessibility and epigenetic modifications in stem cells (Ghaleb and Yang, 2017; 511 citations). Over 20 papers detail its interactions with SWI/SNF complexes and telomerase regulation (Hsieh et al., 2017; 59 citations).

Curated Papers

Key Challenges

Why It Matters

KLF4 enables iPSC generation for regenerative medicine and disease modeling, as shown in endothelial reprogramming under shear stress (Moonen et al., 2022; 62 citations). It controls telomerase in ESCs and cancer cells, impacting genome stability (Hsieh et al., 2017). Liquid condensation of KLF4 with DNA organizes chromatin during reprogramming, advancing somatic cell conversion efficiency (Sharma et al., 2021; 81 citations).

Key Research Challenges

KLF4 target gene identification

Mapping precise KLF4 binding sites in pluripotent cells remains incomplete due to context-dependent regulation. Ghaleb and Yang (2017) review known targets but highlight gaps in dynamic binding. Bialkowska et al. (2017) note variability across cell types (145 citations).

Epigenetic modification mechanisms

KLF4 recruits SWI/SNF for chromatin accessibility, but interactions with PARP1 and histone modifiers need clarification. Moonen et al. (2022) demonstrate enhancer reprogramming, yet off-target effects persist. Hsieh et al. (2017) link PARP1 to telomerase control.

Reprogramming efficiency optimization

KLF4 liquid condensation aids chromatin organization, but low iPSC yields limit applications (Sharma et al., 2021; 81 citations). Factors like shear stress influence outcomes variably (Moonen et al., 2022). Balancing pluripotency with differentiation risks persists.

Essential Papers

Krüppel-like factor 4 (KLF4): What we currently know

Amr M. Ghaleb, Vincent W. Yang · 2017 · Gene · 511 citations

Krüppel-like factors in mammalian stem cells and development

Agnieszka B. Bialkowska, Vincent W. Yang, Sandeep K. Mallipattu · 2017 · Development · 145 citations

Krüppel-like factors (KLFs) are a family of zinc-finger transcription factors that are found in many species. Recent studies have shown that KLFs play a fundamental role in regulating diverse biolo...

KLF4 transcription factor in tumorigenesis

Zhihong He, Jie He, Keping Xie · 2023 · Cell Death Discovery · 126 citations

Abstract Krüppel-like transcriptional factor is important in maintaining cellular functions. Deletion of Krüppel-like transcriptional factor usually causes abnormal embryonic development and even e...

Liquid condensation of reprogramming factor KLF4 with DNA provides a mechanism for chromatin organization

Rajesh Sharma, Kyoung‐Jae Choi, My Diem Quan et al. · 2021 · Nature Communications · 81 citations

Krüppel-like factors in cancer progression: three fingers on the steering wheel

Ridha Limame, Ken Op de Beeck, Filip Lardon et al. · 2013 · Oncotarget · 70 citations

Krüppel-like factors (KLFs) comprise a highly conserved family of zinc finger transcription factors, that are involved in a plethora of cellular processes, ranging from proliferation and apoptosis ...

KLF4 recruits SWI/SNF to increase chromatin accessibility and reprogram the endothelial enhancer landscape under laminar shear stress

Jan-Renier Moonen, James Chappell, Minyi Shi et al. · 2022 · Nature Communications · 62 citations

The Role of KLF4 in Alzheimer’s Disease

Ziqian Cheng, Xiaohan Zou, Yang Jin et al. · 2018 · Frontiers in Cellular Neuroscience · 61 citations

Krüppel-like factor 4 (KLF<sub>4</sub>), a member of the family of zinc-finger transcription factors, is widely expressed in range of tissues that play multiple functions. Emerging evidence suggest...

Reading Guide

Foundational Papers

Start with Limame et al. (2013; 70 citations) for KLF family pluripotency overview, then Čvoro et al. (2014; 58 citations) on KLF signaling in stem cells.

Recent Advances

Study Sharma et al. (2021; 81 citations) for KLF4 condensation mechanisms and Moonen et al. (2022; 62 citations) for chromatin dynamics.

Core Methods

Core techniques: ChIP-seq for binding, co-IP for protein interactions, phase separation assays for condensates, iPSC reprogramming efficiency metrics.

How PapersFlow Helps You Research Krüppel-like Factor 4 in Stem Cell Pluripotency

Discover & Search

Research Agent uses searchPapers and citationGraph on 'KLF4 pluripotency' to map 50+ papers from Ghaleb and Yang (2017), revealing clusters around Yamanaka factors; exaSearch uncovers niche studies like Sharma et al. (2021) on liquid condensation; findSimilarPapers expands from Bialkowska et al. (2017).

Analyze & Verify

Analysis Agent applies readPaperContent to extract KLF4-SWI/SNF interactions from Moonen et al. (2022), verifies claims with CoVe against Hsieh et al. (2017) telomerase data, and runs PythonAnalysis on ChIP-seq datasets for binding motif stats with GRADE scoring for evidence strength.

Synthesize & Write

Synthesis Agent detects gaps in KLF4 epigenetic targets via contradiction flagging across Ghaleb reviews; Writing Agent uses latexEditText and latexSyncCitations to draft methods sections citing 10+ papers, latexCompile for figures, and exportMermaid for KLF4-Oct4 interaction diagrams.

Use Cases

"Analyze KLF4 ChIP-seq data from pluripotency papers for common motifs"

Research Agent → searchPapers('KLF4 ChIP-seq stem cells') → Analysis Agent → runPythonAnalysis (pandas motif counting, matplotlib visualization) → researcher gets motif enrichment stats and plots.

"Write LaTeX review on KLF4 in iPSC reprogramming"

Synthesis Agent → gap detection on 20 papers → Writing Agent → latexEditText (intro/methods), latexSyncCitations (Ghaleb 2017 et al.), latexCompile → researcher gets compiled PDF with diagram.

"Find code for KLF4 liquid condensation simulations"

Research Agent → paperExtractUrls (Sharma 2021) → Code Discovery → paperFindGithubRepo → githubRepoInspect → researcher gets verified GitHub code for phase separation models.

Automated Workflows

Deep Research workflow scans 50+ KLF papers via searchPapers → citationGraph → structured report on KLF4 pluripotency evolution. DeepScan applies 7-step CoVe to verify Sharma et al. (2021) condensation claims against Ghaleb reviews. Theorizer generates hypotheses on KLF4-PARP1 synergies from Hsieh et al. (2017).

Try Doxa for Krüppel-like Factor 4 in Stem Cell Pluripotency Research

Frequently Asked Questions

What defines KLF4's role in stem cell pluripotency?

KLF4 maintains pluripotency by binding Oct4/Sox2 enhancers and promoting open chromatin (Ghaleb and Yang, 2017).

What methods study KLF4 in pluripotency?

ChIP-seq maps targets, liquid-liquid phase separation assays test condensation (Sharma et al., 2021), SWI/SNF co-IP verifies recruitment (Moonen et al., 2022).

What are key papers on KLF4 pluripotency?

Ghaleb and Yang (2017; 511 citations) reviews mechanisms; Bialkowska et al. (2017; 145 citations) covers stem cell roles; Sharma et al. (2021; 81 citations) details DNA condensation.