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Updated: Jan 16, 2026

Generation of a RIP1 Knockout U937 Cell Line Using the CRISPR-Cas9 System
Published on: April 11, 2025
RIPK1 signaling pathways: implications for autoimmune and neuroinflammatory diseases
Abigail Pajulas1, Jonathan T Sims2, Eric P Hanson2
1Immunology Research, Eli Lilly and Company, San Diego, CA, United States.
Abstract:
Receptor-interacting protein kinase 1 (RIPK1), which regulates cell death and survival pathways, is a promising therapeutic target for the treatment of several autoimmune, inflammatory, and neurodegenerative diseases, having important roles in inflammation, apoptosis, and necroptosis. In this review, we describe recent insights that help elucidate the molecular mechanisms of signaling pathways reliant on RIPK1, focusing on its scaffolding function and kinase activity. We emphasize the cell type-specific effects of RIPK1, characterizing its role in necroptosis, immune cell regulation, and tissue-specific responses. Lastly, we present the relevance of RIPK1 in autoimmune and inflammatory diseases, while highlighting the clinical landscape for RIPK1-targeting therapies. All together, this review aims to present recent findings pertaining to RIPK1 signaling and discuss its potential as a therapeutic target in diseases.
Insights
Receptor-interacting protein kinase 1 (RIPK1) regulates cell death and survival. This review details RIPK1
Area of Science:
- Molecular biology and immunology
- Cellular signaling and disease mechanisms
Background:
- Receptor-interacting protein kinase 1 (RIPK1) is crucial in regulating cell death and survival pathways.
- Dysregulation of RIPK1 signaling is implicated in autoimmune, inflammatory, and neurodegenerative diseases.
Purpose of the Study:
- To elucidate the molecular mechanisms of RIPK1 signaling pathways, including its scaffolding and kinase functions.
- To review the cell type-specific roles of RIPK1 in necroptosis, immune regulation, and tissue responses.
- To discuss the therapeutic potential of targeting RIPK1 in various diseases.
Main Methods:
- Literature review of recent findings on RIPK1 signaling.
- Analysis of RIPK1's molecular mechanisms, including scaffolding and kinase activities.
- Characterization of RIPK1's role in different cell types and disease contexts.
Main Results:
- Recent insights into RIPK1's molecular mechanisms, emphasizing its scaffolding and kinase functions.
- Identification of cell type-specific effects of RIPK1 in necroptosis, immune cell regulation, and tissue responses.
- Established relevance of RIPK1 in autoimmune and inflammatory diseases.
Conclusions:
- RIPK1 is a key regulator of cell death and survival with significant roles in inflammation and immunity.
- Understanding RIPK1's complex signaling is vital for developing targeted therapies.
- RIPK1 represents a promising therapeutic target for autoimmune, inflammatory, and neurodegenerative diseases.
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