Description

Product Overview

ARA-290 (Cibinetide) Peptide represents a specialized research peptide designed to investigate non-erythropoietic biological signaling associated with erythropoietin-derived molecular fragments. Developed from the three-dimensional structure of erythropoietin’s helix-B domain, this peptide preserves receptor-selective activity while avoiding activation of classical erythropoietic pathways.

Its relatively short amino acid sequence and favorable physicochemical characteristics make ARA-290 a valuable molecular tool for receptor binding studies, cellular signaling experiments, inflammation-related pathway research, and investigations into mechanisms governing tissue homeostasis. Numerous laboratory studies have explored its interaction with the innate repair receptor complex, providing insight into downstream intracellular signaling events including JAK/STAT, PI3K/Akt, and NF-κB modulation.

Because it lacks stimulation of red blood cell production observed with native erythropoietin, ARA-290 enables researchers to isolate receptor-specific biological responses without introducing erythropoietic variables into experimental designs. This makes it particularly useful for mechanistic investigations requiring precise evaluation of receptor selectivity and intracellular signaling.

For research use only. Not intended for human consumption or clinical use.

Key Research Highlights

• Synthetic 11-amino-acid erythropoietin-derived peptide
• Designed for selective innate repair receptor (IRR) research
• Non-erythropoietic molecular profile
• Frequently utilized in receptor signaling investigations
• Suitable for cellular pathway and molecular biology studies
• Commonly evaluated in inflammatory signaling research
• Valuable for apoptosis and cell survival pathway investigations
• Lyophilized for enhanced laboratory stability
• Manufactured to high research-grade purity standards
• Certificate of Analysis (COA) available
• Compatible with in vitro and preclinical laboratory protocols

Why Researchers Choose This Product

• High-purity research-grade peptide
• Sequence verified using analytical characterization
• Designed for reproducible laboratory investigations
• Excellent batch-to-batch consistency
• Suitable for advanced receptor biology studies
• Manufactured under strict quality-controlled conditions
• Ideal for molecular pharmacology research
• Compatible with numerous biochemical assay platforms
• COA available for laboratory documentation
• Intended exclusively for scientific research applications

Research Applications

### Innate Repair Receptor (IRR) Research

ARA-290 is widely investigated for selective activation of the innate repair receptor complex, enabling researchers to study receptor biology independently of classical erythropoietin-mediated hematopoietic signaling.

### Cellular Signaling Studies

Researchers employ ARA-290 to evaluate intracellular signaling cascades including JAK/STAT, PI3K/Akt, MAPK, and NF-κB pathways under controlled laboratory conditions.

### Molecular Pharmacology

The peptide serves as a valuable experimental compound for investigating ligand-receptor interactions, receptor selectivity, downstream signal transduction, and peptide pharmacodynamics.

### Inflammation Pathway Research

ARA-290 is commonly incorporated into laboratory models examining cytokine regulation, inflammatory mediator expression, and intracellular communication mechanisms.

### Cell Survival and Stress Response Research

Experimental studies frequently utilize ARA-290 to investigate mechanisms associated with apoptosis regulation, oxidative stress responses, mitochondrial signaling, and cellular adaptation pathways.

### Translational Peptide Research

The peptide provides researchers with a molecular model for studying selective EPO-derived peptide engineering and receptor-specific biological activity.

Product Specifications

*Values may vary slightly depending on salt form and manufacturer specifications.

Mechanism of Action

ARA-290 (Cibinetide) Peptide is an engineered peptide derived from the helix-B surface of erythropoietin (EPO), a structural region responsible for tissue-protective signaling rather than erythropoiesis. Unlike full-length erythropoietin, which activates the homodimeric erythropoietin receptor responsible for red blood cell production, ARA-290 was specifically designed to preferentially interact with the heteromeric innate repair receptor (IRR), consisting of the erythropoietin receptor (EPOR) and the β-common receptor (CD131).

Laboratory investigations demonstrate that receptor engagement initiates multiple intracellular signaling pathways involved in cellular communication and adaptive responses. Activation of Janus kinase (JAK) proteins promotes phosphorylation of STAT transcription factors, particularly STAT3 and STAT5, leading to alterations in gene transcription associated with cellular signaling networks. Parallel activation of phosphoinositide 3-kinase (PI3K) and Akt signaling contributes to regulation of intracellular protein phosphorylation events, cellular metabolism, and survival-related molecular processes.

Experimental models have also demonstrated modulation of mitogen-activated protein kinase (MAPK) signaling, including extracellular signal-regulated kinase (ERK1/2), providing researchers with opportunities to investigate peptide-mediated regulation of proliferation, differentiation, and stress-response pathways. Additional studies suggest that ARA-290 influences nuclear factor-kappa B (NF-κB) activity, a central regulator of inflammatory gene expression and cytokine signaling. These observations have made the peptide valuable for examining molecular interactions governing immune signaling under controlled laboratory conditions.

Unlike native erythropoietin, ARA-290 exhibits minimal affinity for the homodimeric erythropoietin receptor responsible for hematopoietic activity. This receptor selectivity enables researchers to investigate non-erythropoietic signaling mechanisms without introducing erythropoiesis-related variables into experimental systems. Such specificity has increased its utility in mechanistic studies focused on receptor pharmacology, peptide engineering, and intracellular signal transduction.

Beyond receptor activation, laboratory investigations continue to explore ARA-290’s influence on mitochondrial signaling, oxidative stress responses, apoptosis-associated protein regulation, and intercellular communication pathways. Its compact peptide structure, receptor selectivity, and well-characterized molecular profile have established ARA-290 as an important research tool for studying peptide-receptor interactions, signal transduction networks, and cellular biology in both in vitro and preclinical laboratory environments.

For research use only. Not intended for human consumption or clinical use.