Description of Cartalax
Cartalax (Ala-Glu-Asp, AED) is a synthetic tripeptide belonging to the group of short peptide bioregulators investigated primarily in relation to cartilage biology, connective tissue, and cellular aging. Experimental research has focused on its potential influence on chondrocytes and mesenchymal stem cells, particularly on molecular processes involved in chondrogenesis, cellular proliferation, differentiation, and age-associated changes in cartilage tissue.
In cellular research models, AED has been observed to influence the expression and synthesis of several proteins involved in cartilage formation and maintenance, including SOX9, aggrecan, type II collagen, and cartilage oligomeric matrix protein (COMP). Additional studies have investigated its effects on molecular markers associated with cellular senescence and the senescence-associated secretory phenotype (SASP), suggesting that Cartalax may represent an interesting research compound for studying age-related changes in cartilage and connective tissue. However, the available evidence remains predominantly preclinical, and further independent research is required to establish the biological relevance of these findings.
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Overview of Published Research
1. Cartalax and Chondrogenic Differentiation
One of the principal areas of Cartalax research concerns chondrogenesis—the process by which mesenchymal stem cells differentiate toward cartilage-producing chondrocytes. This process is regulated by several transcription factors and extracellular matrix proteins, including SOX9, aggrecan, type II collagen, and COMP, which are widely used as molecular markers of chondrogenic differentiation.
In a study using human mesenchymal stem cells undergoing replicative aging, the AED peptide was investigated for its influence on gene expression and protein synthesis of these chondrogenic markers. At a concentration of 200 ng/ml, AED increased the expression and synthesis of SOX9, aggrecan, type II collagen, and COMP in the experimental cell model. These proteins are involved in chondrocyte differentiation and formation of the cartilage extracellular matrix, making their regulation an important subject of cartilage biology research.
These observations suggest that AED may influence molecular pathways associated with chondrogenic differentiation in aging mesenchymal stem cells. The findings provide a basis for further investigation of Cartalax in experimental models of cartilage aging and osteoarthritis, although they do not establish a therapeutic effect in humans.
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2. Cartalax and Age-Related Changes in Chondrocytes
Cellular senescence is an important area of cartilage research because aging chondrocytes can develop a senescence-associated secretory phenotype (SASP). This phenotype is characterized by alterations in proteins associated with cell-cycle regulation, apoptosis, and inflammatory signaling and may contribute to age-related changes in cartilage tissue.
Experimental research examining AED in aging chondrocytes reported changes in several SASP-associated markers. Senescent chondrocytes demonstrated increased synthesis of p16, p21, and p53, as well as the pro-inflammatory cytokines TNF-α and IL-1α, together with reduced Sirt1 synthesis. Exposure to AED was associated with normalization of the synthesis of molecules involved in this senescence-associated phenotype.
These findings have generated interest in AED as an experimental compound for investigating mechanisms of cartilage aging and cellular senescence. Nevertheless, the results originate from cellular research models and require further confirmation in independent preclinical and clinical studies.
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3. Cartalax and Regulation of Gene Expression During Cellular Aging
The biological activity of short peptides such as AED has also been investigated in the broader context of gene regulation and cellular aging. Research using human bone marrow mesenchymal stem cells evaluated the effects of AED and other short peptides on genes involved in cellular growth, differentiation, metabolism, inflammatory signaling, and aging-related processes.
In these experimental models, AED was associated with modulation of genes including IGF1, TNKS2, and NF-κB. IGF1 participates in cellular growth and differentiation pathways, while TNKS2 is involved in processes including Wnt signaling, telomere regulation, metabolism, and cell-cycle control. NF-κB represents an important transcriptional regulator involved in cellular stress and inflammatory signaling. The observed modulation of these pathways suggests that AED may influence several molecular processes relevant to the biology of aging cells.
Taken together, current experimental findings position Cartalax as a research peptide of interest for studying chondrogenesis, cartilage aging, cellular senescence, and gene-regulatory mechanisms. However, published evidence remains largely limited to cellular and preclinical research, and robust controlled human clinical studies are required before any conclusions regarding clinical efficacy or safety can be established.
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References
- Myakisheva SN, Linkova NS, Diatlova AS, Polyakova VO, Ryzhak GA. The influence of peptides on the chondrogenic differentiation of human mesenchymal stem cells during replicative aging. Advances in Gerontology. 2023;36(3):383–390. doi: 10.34922/ae.2023.36.3.013.
- Myakisheva SN, Linkova NS, Kozhevnikova EO, Polyakova VO, Ryzhak GA. Peptides prevent the forming of secretory phenotype of chondrocytes associated with the aging. Advances in Gerontology. 2023;36(2):234–238. PMID: 37356100.
- Ashapkin V, Khavinson V, Shilovsky G, Linkova N, Vanyushin B. Gene expression in human mesenchymal stem cell aging cultures: modulation by short peptides. Molecular Biology Reports. 2020;47(6):4323–4329. doi: 10.1007/s11033-020-05506-3.
- Khavinson V, Diomede F, Mironova E, et al. Peptide Regulation of Gene Expression: A Systematic Review. Molecules. 2021;26(22):7053.
