Krüppel-Like Factor Dynamics in Cancer Biology

Krüppel-Like Factors (KLFs) constitute a family of zinc-finger transcription factors that regulate cell fate by binding to GC-rich regions of gene promoters. In cancer biology, individual KLF family members exhibit context-dependent functions, acting as tumour suppressors or oncogenes according to tissue type and microenvironmental cues. KLFs modulate proliferation, differentiation, apoptosis, metabolic reprogramming and epithelial–mesenchymal transition. For instance, KLF4 can arrest the cell cycle via induction of cell-cycle inhibitors, yet in other contexts enhance inflammatory pathways in macrophages. KLF5 often promotes proliferation and invasiveness, while KLF3 and KLF13 exert complex roles in metabolic and immune regulation. Dysregulation of KLF expression or function contributes to tumour initiation, progression and metastasis. Moreover, KLFs interact with key signalling networks—such as p53, mTORC2 and NF-κB—to coordinate gene-expression programmes shaping tumour cell behaviour and stromal interactions. Given their dualistic nature and central regulatory capacity, KLFs offer promising prospects as biomarkers for disease prognosis and as therapeutic targets across a range of malignancies.

Research from Nature Portfolio

Recent studies have elucidated the oncogenic role of KLF5 in cervical squamous cell carcinoma. This work demonstrates that KLF5 drives tumour cell proliferation, migration and invasion partly through transcriptional activation of TNFRSF11a. Activation of the p38 signalling pathway by pro-inflammatory cytokines enhances KLF5 expression, establishing a feed-forward loop that correlates with increased metastatic potential and reduced patient survival. Functional experiments in vitro and in vivo confirm that disruption of the KLF5–TNFRSF11a axis suppresses tumour growth and metastasis, highlighting its potential as a therapeutic target in inflammation-linked malignancies.

Krüppel-Like Factor Dynamics in Cancer Biology publication trend

The graph below shows the total number of articles in krüppel-like factor dynamics in cancer biology across all publications each year (not limited to Nature Index journals).

Technical terms

Transcription factor: A protein that binds DNA to regulate gene expression.

Tumour suppressor: A gene or protein that restrains cell division or survival to prevent tumour development.

Oncogene: A gene or protein that promotes cell proliferation and survival, contributing to cancer.

Epithelial–mesenchymal transition (EMT): A process by which epithelial cells acquire migratory and invasive properties.

Tumour microenvironment: The cellular and molecular milieu surrounding cancer cells, including stroma and immune cells.

Chromatin immunoprecipitation (ChIP): A method to identify DNA regions bound by specific proteins in living cells.

References

1. KLF4 transcription factor in tumorigenesis. Cell Death Discovery (2023).
2. Pan-cancer analysis of Krüppel-like factor 3 and its carcinogenesis in pancreatic cancer. Frontiers in Immunology (2023).
3. KLF4 Suppresses the Progression of Hepatocellular Carcinoma by Reducing Tumor ATP Synthesis through Targeting the Mir-206/RICTOR Axis. International Journal of Molecular Sciences (2024).
4. KLF5 promotes cervical cancer proliferation, migration and invasion in a manner partly dependent on TNFRSF11a expression. Scientific Reports (2017).
5. Kruppel-like Factor 4 Is a Mediator of Proinflammatory Signaling in Macrophages*. Journal of Biological Chemistry (2005).
6. Krüppel-like Factor 4 Is Acetylated by p300 and Regulates Gene Transcription via Modulation of Histone Acetylation. Journal of Biological Chemistry (2007).
7. The Gut-enriched Krüppel-like Factor (Krüppel-like Factor 4) Mediates the Transactivating Effect of p53 on the p21 WAF1/Cip1 Promoter*. Journal of Biological Chemistry (2000).