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In Vitro and in Vivo Pharmacokinetic Characterization of LMT-28 as a Novel Small Molecular interleukin-6 Inhibitor

In Vitro and in Vivo Pharmacokinetic Characterization of LMT-28 as a Novel Small Molecular interleukin-6 Inhibitor

Sung-Hoon Ahn, Tae-Hwe Heo, Hyun-Sik Jun, Yongseok Choi

Asian-Australas J Anim Sci. 2020 Apr;33(4):670-677.

PMID: 31480155

Abstract:

Objective:
Interleukin-6 (IL-6) is a T cell-derived B cell stimulating factor which plays an important role in inflammatory diseases. In this study, the pharmacokinetic properties of LMT-28 including physicochemical property, in vitro liver microsomal stability and an in vivo pharmacokinetic study using BALB/c mice were characterized.
Methods:
LMT-28 has been synthesized and is being developed as a novel therapeutic IL-6 inhibitor. The physicochemical properties and in vitro pharmacokinetic profiles such as liver microsomal stability and Madin-Darby canine kidney (MDCK) cell permeability assay were examined. For in vivo pharmacokinetic studies, pharmacokinetic parameters using BALB/c mice were calculated.
Results:
The logarithm of the partition coefficient value (LogP; 3.65) and the apparent permeability coefficient values (Papp; 9.7×10-6 cm/s) showed that LMT-28 possesses a moderate-high cell permeability property across MDCK cell monolayers. The plasma protein binding rate of LMT-28 was 92.4% and mostly bound to serum albumin. The metabolic half-life (t1/2) values of LMT-28 were 15.3 min for rat and 21.9 min for human at the concentration 1 μM. The area under the plasma drug concentration-time curve and Cmax after oral administration (5 mg/kg) of LMT-28 were 302±209 h∙ng/mL and 137±100 ng/mL, respectively.
Conclusion:
These data suggest that LMT-28 may have good physicochemical and pharmacokinetic properties and may be a novel oral drug candidate as the first synthetic IL-6 inhibitor to ameliorate mammalian inflammation.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP1239600180	LMT-28		1239600-18-0	Price

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