Mannose 6-phosphate (M6P) has type-I integral membrane receptors. M6P-receptors bind and transport M6P-enzymes to lysosomes, but it can also modulate the activity of a variety of extracellular M6P-glycoproteins (i.e., latent TGFbeta precursor, urokinase-type plasminogen activator receptor, Granzyme B, growth factors, Herpes virus). M6P has been demonstrated to reduce active TGF-β1 expression on cultured tendon fibroblasts and improved range of movement in a rabbit flexor tendon injury model. Studies of M6P in relation to skin scarring demonstrate improvement in scar cosmesis and accelerated return of normal dermal architecture. Juvidex, a formulation of M6P, inhibits the activation of TGF-beta1 and TGF-beta2, which are present at high levels in adult wounds that scar. On the other hands, M6P in a 600 mM hypertonic solution (Adaprev) potentially acts via a physical, non-chemical, hyperosmotic effect.

Oxi0-4503 (now known as combretastatin A1 phosphate), a diphosphate prodrug of combretastatin A1, was developed by Mateon therapeutics as a second-generation, dual-mechanism vascular disrupting agent from the combretastatin family. On November 21, 2012, Oxi-4503 has been granted orphan designation by the US Food and Drug Administration for the treatment of acute myelogenous leukemia. It is known that the orphan drug designation qualifies a company for several benefits, including the potential for market exclusivity, development grants, and tax credits. Oxi0-4503 is currently participating in phase I/II clinical trial the treatment of patients with acute myelogenous leukemia or myelodysplastic syndrome. In addition, phase I clinical trial was successfully completed where was studied the safety of Oxi0-4503 in patients with advanced solid tumors.

Mannose 6-phosphate (M6P) has type-I integral membrane receptors. M6P-receptors bind and transport M6P-enzymes to lysosomes, but it can also modulate the activity of a variety of extracellular M6P-glycoproteins (i.e., latent TGFbeta precursor, urokinase-type plasminogen activator receptor, Granzyme B, growth factors, Herpes virus). M6P has been demonstrated to reduce active TGF-β1 expression on cultured tendon fibroblasts and improved range of movement in a rabbit flexor tendon injury model. Studies of M6P in relation to skin scarring demonstrate improvement in scar cosmesis and accelerated return of normal dermal architecture. Juvidex, a formulation of M6P, inhibits the activation of TGF-beta1 and TGF-beta2, which are present at high levels in adult wounds that scar. On the other hands, M6P in a 600 mM hypertonic solution (Adaprev) potentially acts via a physical, non-chemical, hyperosmotic effect.

Aminoquinol (XIB4035) is a nonpeptidyl small molecule agonist for GFRalpha-1. XIB4035 concentration-dependently inhibited [(125)I]GDNF binding in Neuro-2A cells with an IC(50) of 10.4 uM. GDNF induced autophosphorylation of Ret protein, and promoted neurite outgrowth in Neuro-2A cells. XIB4035, like GDNF, induced Ret autophosphorylation in the Neuro-2A cells. Moreover, XIB4035 promoted neurite outgrowth in a concentration-dependent manner. These results show that XIB4035 may act as an agonist at GFRalpha-1 receptor complex, and mimic neurotrophic effects of GDNF in Neuro-2A cells. It has been shown that topical application of XIB4035 is an effective treatment for small-fiber neuropathy (SFN). Topical application of GFRα/RET receptor signaling modulators may be a unique therapy for SFN, and XIB4035 is a candidate therapeutic agent. Aminoquinol has been also used in the therapy of cutaneous leishmaniasis and lambliasis.

Aminoquinol (XIB4035) is a nonpeptidyl small molecule agonist for GFRalpha-1. XIB4035 concentration-dependently inhibited [(125)I]GDNF binding in Neuro-2A cells with an IC(50) of 10.4 uM. GDNF induced autophosphorylation of Ret protein, and promoted neurite outgrowth in Neuro-2A cells. XIB4035, like GDNF, induced Ret autophosphorylation in the Neuro-2A cells. Moreover, XIB4035 promoted neurite outgrowth in a concentration-dependent manner. These results show that XIB4035 may act as an agonist at GFRalpha-1 receptor complex, and mimic neurotrophic effects of GDNF in Neuro-2A cells. It has been shown that topical application of XIB4035 is an effective treatment for small-fiber neuropathy (SFN). Topical application of GFRα/RET receptor signaling modulators may be a unique therapy for SFN, and XIB4035 is a candidate therapeutic agent. Aminoquinol has been also used in the therapy of cutaneous leishmaniasis and lambliasis.

Aminoquinol (XIB4035) is a nonpeptidyl small molecule agonist for GFRalpha-1. XIB4035 concentration-dependently inhibited [(125)I]GDNF binding in Neuro-2A cells with an IC(50) of 10.4 uM. GDNF induced autophosphorylation of Ret protein, and promoted neurite outgrowth in Neuro-2A cells. XIB4035, like GDNF, induced Ret autophosphorylation in the Neuro-2A cells. Moreover, XIB4035 promoted neurite outgrowth in a concentration-dependent manner. These results show that XIB4035 may act as an agonist at GFRalpha-1 receptor complex, and mimic neurotrophic effects of GDNF in Neuro-2A cells. It has been shown that topical application of XIB4035 is an effective treatment for small-fiber neuropathy (SFN). Topical application of GFRα/RET receptor signaling modulators may be a unique therapy for SFN, and XIB4035 is a candidate therapeutic agent. Aminoquinol has been also used in the therapy of cutaneous leishmaniasis and lambliasis.