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Results for "

human polymorphonuclear leukocyte elastase

" in MedChemExpress (MCE) Product Catalog:

3

Inhibitors & Agonists

1

Recombinant Proteins

1

Antibodies

Targets Recommended:
Cat. No. Product Name Target Research Areas Chemical Structure
  • HY-120876
    L-680833

    		Beta-lactamase Elastase Inflammation/Immunology
    L-680833 is a monocyclic β-lactam inhibitor of human polymorphonuclear leukocyte elastase (PMNE) inhibitor. L-680833 can be used for the study of PMNE-damaged tissue diseases .
    L-680833
  • HY-118261
    L 659286

    		Elastase Inflammation/Immunology
    L 659286 is an inhibitor of human polymorphonuclear leukocyte elastase (PMN elastase) (Ki=0.4 μM). Intratracheal injection of L 659286 can induce lung injury in hamsters.
    L 659286
  • HY-117811
    (R,R)-MK 287

    L-680574

    		 Others Others
    (R,R)-MK 287 is a tetrahydrofuran derivative that effectively inhibits the binding of [3H]C18-PAF to human platelets, polymorphonuclear leukocytes (PMNs), and lung membranes with K1 values of 6.1 ± 1.5, 3.2 ± 0.7, and 5.49 ± 2.3 nM, respectively. The inhibition is stereospecific and competitive. Its racemate, L-668,750, is less potent, and its enantiomer, L-680574, is only 1/20 as potent as MK 287. MK 287 inhibits the binding of [3H]C18-PAF to human PMN membranes, reducing the affinity of the radioligand without changing the number of receptor sites. The binding of other radioligands (e.g., LTB4, LTC4, C5a, FMLP) to their specific receptors is unchanged at 1-10 microM MK 287. [3H]MK 287 binds to human platelet and PMN membranes with KD values of 2.1 ± 0.6 and 2.9 ± 1.2 nM. When tested on isolated human cells, MK 287 potently and selectively inhibits PAF-induced platelet aggregation (ED50 = 56 ± 38 nM or ED50 = 1.5 ± 0.5 nM for gel-filtered platelets) and elastase release from PMNs (ED50 = 4.4 ± 2.6 nM). In vivo studies, MK 287 inhibited PAF-induced lethality in mice (ED50 = 0.8 mg/kg oral) and PAF-induced bronchospasm in guinea pigs (ED50 = 0.18 mg/kg intraduodenally and 0.19 mg/kg intravenously). The inhibition of PAF-induced bronchospasm was accompanied by a rightward shift in the concentration-response curve for PAF-induced platelet aggregation measured in vitro.
    (R,R)-MK 287

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