Pain & Inflammation

Nociception (pain perception) and inflammation are two responses of an organisms defence system towards external noxious stimuli. Although different in nature, pain and inflammation are strongly associated with each other. An important sign of inflammation - besides local redness, swelling, heat, and loss of function -  is in fact pain. The events of inflammation that underlie these symptoms are induced and regulated by a large number of chemical mediators that are also found to mediate the mechanisms of pain perception. These mediators include eicosanoids, kinins, complement proteins, neurotransmitters (e.g. histamine), protons, NO, prostaglandins, leukotrienes, neurotrophins, and monokines[1].
Inflammation is a major protective response of the immune system to tissue damage and infection, and ranges from the acute inflammation associated with infection of the skin, through to chronic inflammatory processes in atherosclerosis, asthma and chronic bronchitis, and rheumatoid arthritis, among many others. Acute inflammation is knows for its rapid onset and short duration. It is mediated by tissue-resident macrophages and mast cells, and characterized by the exudation of fluids and plasma proteins, and the migration of leukocytes (mainly neutrophils) into the injured area. In contrast, chronic inflammation is of a more prolonged duration and manifests histologically by the presence of lymphocytes and macrophages, resulting in fibrosis and tissue necrosis[2].
Similar to Inflammation, pain may also be divided into two main categories: acute and chronic pain. Acute or nociceptive pain is part of a rapid warning relay instructing the motor neurons of the central nervous system to minimize detected physical harm. It is mediated by nocicepters: free nerve endings that terminate just below the skin, in tendons, joints, and in body organs.  Nociceptors are extremely heterogeneous, differing in the neurotransmitters they contain, the receptors and ion channels they express, their speed of conduction, their response properties to noxious stimuli, and their capacity to be sensitized during inflammation, injury, and disease. Nociception can be associated with nerve damage caused by trauma, diseases such as diabetes, shingles, irritable bowel syndrome, late-stage cancer or the toxic effects of chemotherapy. It typically responds well to treatment with opioids and NSAIDs. Chronic pain, however, serves no biologic function as it is not a symptom of a disease process but is a disease process itself[3],[4].


[1] R. Medzhitov. Origin and physiological roles of inflammation. Nature 2008, 454, 428-435.
[2] E.O. Iwalewa et al. Inflammation: the foundation of diseases and disorders. A review of phytomedicines of South African origin used to treat pain and inflammatory conditions. Afr. J. Biotech. 2007, 6, 2868-2885.
[3] M. Percival. Understanding The Natural Management of Pain and Inflammation. Clin. Nutr. Insights 1999, 4, 1-5.
[4] C.L. Stucky et al. Mechanisms of pain. PNAS October 9, 2001, 98, 11845-11846.

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Axon ID Name Description From price
1572 AR 231453 Cannabinoid GPR119 agonist €85.00
2794 AR 420626 GPR41 receptor agonist (FFA3) €95.00
2167 AR-A 014418 ATP-competitive GSK-3 inhibitor €85.00
2307 ARM1 hydrobromide Novel type of LTA4H inhibitor that selectively blocks the conversion of LTA4 into LTB4 €92.00
2941 ARN 272 Selective inhibitor of FAAH-like anandamide transporter (FLAT) €90.00
2002 AS 602801 JNK inhibitor, which inhibited JNK1, JNK2 and JNK3 €120.00
2578 ASB14780 Potent, orally available inhibitor of cPLA2α; antiinflammatory drug €120.00
2401 AT 1001 High affinity and selective α3β4 nAChR ligand with partial agonistic and antagonistic effects €95.00
2219 AT 9283 Multitargeted kinase inhibitor (Aurora A/B, JAK2/3, and BCR-Abl) €85.00
2288 ATB 346 Orally active hydrogen sulfide-releasing cyclooxygenase inhibitor €110.00
1371 Atipamezole hydrochloride α2 adrenoceptor antagonist €95.00
2243 AVE 0118 hydrochloride Potassium channel blocker (Kv1.5 (IKur), Kv4.3 (Ito), Kir3.4 (IKAch), and IKr currents) €120.00
2099 Avridine Lipoidal amine; interferon-inducing and adjuvant properties €80.00
2692 AX-024 hydrochloride T cell receptor inhibitor €125.00
5051 Axon Ligands™ Cell signaling and Oncology compound library Axon Ligands™ Cell signaling and Oncology compound library Inquire

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