PMID- 16251299 OWN - NLM STAT- MEDLINE DCOM- 20060118 LR - 20201209 IS - 0066-4804 (Print) IS - 1098-6596 (Electronic) IS - 0066-4804 (Linking) VI - 49 IP - 11 DP - 2005 Nov TI - TAK-652 inhibits CCR5-mediated human immunodeficiency virus type 1 infection in vitro and has favorable pharmacokinetics in humans. PG - 4584-91 AB - The first small-molecule CCR5 antagonist, TAK-779, could not be developed as an anti-human immunodeficiency virus type (anti-HIV-1) agent because of its poor oral bioavailability. TAK-652 is an orally bioavailable TAK-779 derivative with potent anti-HIV-1 activity. TAK-652 inhibited the binding of RANTES (regulated on activation, normal T-cell expressed and secreted), macrophage inflammatory protein 1alpha (MIP-1alpha), and MIP-1beta to CCR5-expressing cells at nanomolar concentrations. TAK-652 could also suppress the binding of monocyte chemotactic protein 1 (MCP-1) to CCR2b-expressing cells. However, its inhibitory effect on ligand binding to other chemokine receptors was limited. TAK-652 was active against CCR5-using (R5) HIV-1 but totally inactive against CXCR4-using (X4) HIV-1. The compound was active against R5 HIV-1 clinical isolates containing reverse transcriptase and protease inhibitor-resistant mutations, with a mean 50% effective concentration (EC50) and EC90 of 0.061 and 0.25 nM, respectively. In addition, recombinant R5 viruses carrying different subtype (A to G) envelope proteins were equally susceptible to TAK-652. A single oral administration of TAK-652 up to 100 mg was safe and well tolerated in humans. The compound displayed favorable pharmacokinetics, and its plasma concentration was 7.2 ng/ml (9.1 nM) even 24 h after the administration of 25 mg. Thus, TAK-652 is a promising candidate as a novel entry inhibitor of HIV-1. FAU - Baba, Masanori AU - Baba M AD - Division of Antiviral Chemotherapy, Center for Chronic Viral Diseases, Graduate School of Medical and Dental Sciences, Kagoshima University, 8-35-1, Sakuragaoka, Kagoshima 890-8544, Japan. baba@m.kufm.kagoshima-u.ac.jp FAU - Takashima, Katsunori AU - Takashima K FAU - Miyake, Hiroshi AU - Miyake H FAU - Kanzaki, Naoyuki AU - Kanzaki N FAU - Teshima, Koichiro AU - Teshima K FAU - Wang, Xin AU - Wang X FAU - Shiraishi, Mitsuru AU - Shiraishi M FAU - Iizawa, Yuji AU - Iizawa Y LA - eng PT - Clinical Trial, Phase I PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Antimicrob Agents Chemother JT - Antimicrobial agents and chemotherapy JID - 0315061 RN - 0 (Anti-HIV Agents) RN - 0 (CCR5 Receptor Antagonists) RN - 0 (Chemokine CCL3) RN - 0 (Chemokine CCL4) RN - 0 (Chemokine CCL5) RN - 0 (Imidazoles) RN - 0 (Macrophage Inflammatory Proteins) RN - 0 (Receptors, CCR5) RN - 0 (Sulfoxides) RN - 15C116UA4Y (cenicriviroc) SB - IM MH - Animals MH - Anti-HIV Agents/adverse effects/pharmacokinetics/*pharmacology MH - *CCR5 Receptor Antagonists MH - CHO Cells MH - Chemokine CCL3 MH - Chemokine CCL4 MH - Chemokine CCL5/metabolism MH - Cricetinae MH - Double-Blind Method MH - HIV-1/*drug effects MH - HeLa Cells MH - Humans MH - Imidazoles/adverse effects/pharmacokinetics/*pharmacology MH - Leukocytes, Mononuclear/virology MH - Macrophage Inflammatory Proteins/metabolism MH - Membrane Fusion/drug effects MH - Receptors, CCR5/physiology MH - Sulfoxides PMC - PMC1280155 EDAT- 2005/10/28 09:00 MHDA- 2006/01/19 09:00 PMCR- 2005/11/01 CRDT- 2005/10/28 09:00 PHST- 2005/10/28 09:00 [pubmed] PHST- 2006/01/19 09:00 [medline] PHST- 2005/10/28 09:00 [entrez] PHST- 2005/11/01 00:00 [pmc-release] AID - 49/11/4584 [pii] AID - 0733-05 [pii] AID - 10.1128/AAC.49.11.4584-4591.2005 [doi] PST - ppublish SO - Antimicrob Agents Chemother. 2005 Nov;49(11):4584-91. doi: 10.1128/AAC.49.11.4584-4591.2005.