lat-1

JPH203 (KYT-0353) is a potent and specific inhibitor of L-type amino acid transporter protein 1 (LAT-1). JPH203 inhibits cellular uptake of leucine, inhibits cell proliferation, induces apoptosis, and possesses anti-inflammatory and anti-tumor activities.

LAT1-IN-1 (BCH) is a selective and competitive inhibitor of L-type amino acid transporter protein 1 (LAT1). LAT1-IN-1 has antitumor activity, inducing apoptosis in tumor cells and inhibiting cell proliferation.

1. Glaucocalyxin A (Leukamenin F)-SBE-β-CD could be useful with a better solubility and sustained function in drug delivery. 2. Glaucocalyxin A activates caspase-3, decreases BAD phosphorylation, and reduces the expression of X-linked inhibitor of apoptosis protein. 3. Glaucocalyxin A inhibits Akt phosphorylation, suppresses proliferation, and promotes apoptosis in a dose-dependent manner, but not in normal glial cells. 4. Glaucocalyxin A inhibits collagen-stimulated tyrosine phosphorylation of Syk, LAT, and phospholipase Cγ2, the signaling events in collagen receptor GPⅥ pathway. 5. Glaucocalyxin A could potentially be developed as an antiplatelet and antithrombotic agent, can inhibit platelet p-selectin secretion and integrin activation by convulxin, is a GPVI selective ligand.

Latanoprost ethyl amide (Lat-NEt) is a latanoprost analog in which the C-1 carboxyl group has been modified to an N-ethyl amide. Prostaglandin esters exhibit ocular hypotensive activity, and prostaglandin N-ethyl amides have recently been introduced as alternative ocular hypotensive prodrugs. Although it has been claimed that prostaglandin ethyl amides are not converted to free acids in vivo, studies in our laboratories show that bovine and human corneal tissue can convert the N-ethyl amides of various prostaglandins to free acids at a rate of about 2.5 μg g corneal tissue hr. Lat-NEt is expected to exhibit the typical intraocular effects of latanoprost free acid, but with much slower hydrolysis pharmacokinetics characteristic of prostaglandin N-amides.