Nucléosides

Polycytidylic acid is a single stranded RNA analog which is combined with Polyinosinic acid to form a stable duplex structure known as Polyinosinic acid-polycytidylic acid (Poly I:C). PolyI:C stimulates the secretion of pro-inflammatory cytokines and type I interferon through its interaction with endosomal Toll-like receptor 3 (TLR-3) and the cytoplasmic receptors melanoma differentiation-associated gene 5 (MDA-5) and retinoic acid-inducible gene I (RIG-I). This immunostimulant activity makes Poly I:C a useful vaccine adjuvant and is used in vaccine formulations.  Poly I:C and its stabilized analogs (e.g., poly-ICLC) are also being actively researched for their dual role in oncology: directly targeting tumors and acting as immune potentiators. For example Poly I:C can induce apoptosis in tumor cells and stimulate immunogenic cell death and is therefore being explored alongside chemotherapy, radiotherapy, and checkpoint inhibitors, helping to overcome resistance mechanisms and strengthen treatment outcomes. We can supply PolyI:C to all stages of your project - from R&D and preclinical phases right up to GMP commercial manufacture. Contact our team for custom Poly I:C products.
For more on poly I:C read out blog 'Poly I:C: A Vaccine Adjuvant With Oncological Potential.'

2'-Deoxy-L-uridine is a nucleoside that is found in the human body. It phosphorylates l-thymidine, which is a natural substrate, and this reaction prevents the formation of diphosphate from d-ribose 5'-monophosphate. 2'-Deoxy-L-uridine is an exogenous substance that inhibits cell growth by affecting protein synthesis and DNA replication. 2'-Deoxy-L-uridine has been shown to be more efficient than wild type uridine in inhibiting cell growth in vitro at concentrations of 1 mM or greater. The enantiomers of 2'-deoxy-L-uridine affect cell growth differently, with the (R)-enantiomer being more potent than the (S)-enantiomer.

Adenosine 5'-diphosphate disodium salt is a sodium salt of adenosine 5'-diphosphate. It is found in the extract of plants such as salvianolic acid and rhizoma gastrodiae, as well as in dinucleotide phosphate. This product has been shown to have cardioprotective effects against ischemia reperfusion injury in animal models. It also has congestive heart failure activity, which may be due to its ability to relax vascular smooth muscle and increase the diameter of lymphatic vessels. Adenosine 5'-diphosphate disodium salt has been shown to inhibit the binding of serotonin (5-hydroxytryptamine) to 5-HT2 receptors, which are present in heart tissue.

Sapacitabine is an oral prodrug that is converted to its active form, the cytotoxic agent 9-β-D-arabinofuranosyladenine (araA), by cellular enzymes. It has potent antitumor activity against solid tumours and has been shown to be effective in a variety of human cancer cell lines. Sapacitabine targets intracellular targets, including DNA methyltransferases and other enzymes involved in the synthesis of RNA and DNA. The drug has been shown to have synergistic effects when used with other cytotoxic agents such as 5-fluorouracil and gemcitabine, which are also inhibitors of DNA methyltransferase.

9-(b-D-Arabinofuranosyl)hypoxanthine is a glycosylated analogue of the incretin hormone glucagon-like peptide-1 (GLP-1). It has been shown to inhibit Streptococcus pyogenes and other bacteria. 9-(b-D-Arabinofuranosyl)hypoxanthine has also been shown to have inhibitory properties against zirconium oxide, pulmonary vasodilation, squamous cell carcinoma, and rate constant. This drug has not been studied in clinical trials for antiviral prophylaxis or arabinoside. The only known side effects are drug interactions with cyclin D2 and nitrate reductase.

2'-Deoxy-2-fluoroadenosine is an adenosine member and an organofluorine compound