Potassium Ascorbate with Ribose: Promising Therapeutic Approach for Melanoma Treatment

Area of Science:

• Oncology
• Cell Biology
• Biochemistry

Background:

• Advanced melanoma lacks effective long-term treatments and impacts patient survival.
• Novel therapeutic strategies are needed to potentiate existing melanoma therapies.
• Research is exploring adjuvant treatments to improve outcomes for melanoma patients.

Purpose of the Study:

• To evaluate the effects of potassium ascorbate with ribose (PAR) on human melanoma cells.
• To investigate PAR's impact on melanoma cell proliferation, viability, and intercellular communication.
• To assess PAR's efficacy in both 2D and 3D melanoma cell culture models.

Main Methods:

• Human melanoma cell line (A375) cultured in 2D and 3D models.
• Pharmacological treatment with potassium ascorbate with ribose (PAR).
• Assessment of cell proliferation, viability, Connexin 43 expression (mRNA and protein), gap junction function, and spheroid characteristics.

Main Results:

• PAR treatment decreased melanoma cell proliferation and viability in 2D cultures.
• PAR increased Connexin 43 mRNA and protein levels, indicating enhanced cell communication.
• In 3D models, PAR increased functional gap junctions, spheroid compactness, and significantly reduced spheroid size and volume.

Conclusions:

• Potassium ascorbate with ribose (PAR) demonstrates anti-proliferative and cell-communication-enhancing effects in melanoma models.
• PAR treatment led to reduced tumor size and volume in 3D melanoma spheroids.
• PAR shows potential as a safe adjuvant therapy to complement conventional treatments for advanced melanoma.