1. Cytoskeleton TGF-beta/Smad Stem Cell/Wnt
  2. Integrin TGF-beta/Smad
  3. MORF-627

MORF-627 is a highly selective, orally active integrin αvβ6 inhibitor. By blocking TGF-β1 activation and pSMAD2 signaling, MORF-627 significantly reduces collagen deposition, epithelial-mesenchymal transition markers, and structural changes in fibrotic cells. MORF-627 exhibits significant antifibrotic efficacy without genotoxicity in idiopathic pulmonary fibrosis models. However, MORF-627 induces bladder epithelial proliferation and early invasive urothelial carcinoma in cynomolgus monkeys and human cells, and this toxic effect can be reversed by exogenous TGF-β. MORF-627 can be used for studying the pathological mechanisms of pulmonary fibrosis and evaluating drug safety.

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MORF-627

MORF-627 Chemical Structure

CAS No. : 2412688-16-3

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Description

MORF-627 is a highly selective, orally active integrin αvβ6 inhibitor. By blocking TGF-β1 activation and pSMAD2 signaling, MORF-627 significantly reduces collagen deposition, epithelial-mesenchymal transition markers, and structural changes in fibrotic cells. MORF-627 exhibits significant antifibrotic efficacy without genotoxicity in idiopathic pulmonary fibrosis models. However, MORF-627 induces bladder epithelial proliferation and early invasive urothelial carcinoma in cynomolgus monkeys and human cells, and this toxic effect can be reversed by exogenous TGF-β. MORF-627 can be used for studying the pathological mechanisms of pulmonary fibrosis and evaluating drug safety[1][2][3].

IC50 & Target[1]

αvβ6

1.1 nM (IC50)

In Vitro

MORF-627 potently and selectively inhibits purified human integrin αvβ6 with an IC50 of 1.1 nM, exhibiting 450-fold and 300-fold selectivity over αvβ1 and αvβ8, respectively[1].
MORF-627 inhibits the binding of proTGF-β1 to HEK293 cells overexpressing human αvβ6, with an IC50 of 9.2 nM[1].
MORF-627 potently inhibits αvβ6-mediated TGF-β1 activation in a cell co-culture system, with an IC50 of 2.63 nM after 24 h of treatment[1].
MORF-627 inhibits the mRNA expression of ECM proteins in a co-culture system of primary fibroblasts and epithelial cells derived from human idiopathic pulmonary fibrosis (IPF)[1].
MORF-627 (0.01-3 μM; 3 d) induces dose-dependent proliferation of primary human bladder epithelial cells, while co-administration of 5 ng/mL exogenous TGF-β1 reverses this effect[3].
MORF-627 (0.01-3 μM; 3 d) induces dose-dependent proliferation of primary human alveolar epithelial cells within 3 days, and this effect is reversed by co-administration of 5 ng/mL exogenous TGF-β1[3].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Real Time qPCR[1]

Cell Line: coculture of human primary epithelial cells expressing αvβ6 and human IPF fibroblasts
Concentration: dose range
Incubation Time: 72 h
Result: Inhibited COL1A1 mRNA expression with an IC50 of 1.8 nM.
Inhibited COL3A1 mRNA expression with an IC50 of 12.8 nM.
Inhibited FN mRNA expression with an IC50 of 20.3 nM.
Parmacokinetics
Species Dose Route CL Vss T1/2 AUC0-inf Cmax Tmax F
Mice[1] 1 mg/kg i.v. 18.0 mL/min/kg 2.07 L/kg 1.9 h 0.94 μg·h/mL / / /
Rat[1] 1 mg/kg i.v. 27.6 mL/min/kg 3.08 L/kg 1.9 h 0.61 μg·h/mL / / /
Dog[1] 1 mg/kg i.v. 9.53 mL/min/kg 1.84 L/kg 4.9 h 2.97 μg·h/mL / / /
Cynomolgus Monkey[1] 1 mg/kg i.v. 10.5 mL/min/kg 2.45 L/kg 4.9 h 1.59 μg·h/mL / / /
Mice[1] 30 mg/kg p.o. / / 2.6 h 19 7.6 μg/mL 0.25 h 66 %
Rat[1] 30 mg/kg p.o. / / 1.8 h 14 14 μg/mL 0.25 h 74 %
Cynomolgus Monkey[1] 5 mg/kg p.o. / / 4.8 h 1.6 μg·h/mL 0.54 μg/mL 1.0 h 16 %
In Vivo

MORF-627 (0.1-100 mg/kg; p.o.; twice daily; for 3 consecutive days) dose-dependently inhibits the αvβ6-mediated TGF-β signaling pathway (detected by reduced pSMAD2 levels) in a bleomycin (HY-108345)-induced acute mouse pulmonary fibrosis model, with an in vivo IC50 of approximately 8.3 nM[1].
MORF-627 (1-10 mg/kg; p.o.; twice daily; for 14 consecutive days) reduces fibrosis severity and collagen deposition in a bleomycin-induced chronic mouse model of pulmonary fibrosis[1].
MORF-627 induces epithelial proliferative changes in the bladder of 33% of tested cynomolgus macaques 28 days after administration[2].
MORF-627 (administered via gavage; daily; for consecutive 28 days at 30-180-120 mg/kg/day) induces dose-related proliferation of bladder epithelial cells; 33% of treated cynomolgus monkeys develop early invasive urothelial carcinoma, and the Ki67 proliferation index of urothelial cells is significantly increased in all dose groups[3].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Animal Model: C57BL/6J (male, 7 weeks old, bleomycin-induced chronic model)[1]
Dosage: 1-10 mg/kg
Administration: p.o.; twice daily; 14 days
Result: Produced a statistically significant 33% reduction in the Modified Ashcroft Score compared to vehicle controls at 1 mg/kg, 3 mg/kg, and 10 mg/kg doses.
Significantly reduced total collagen deposition by 31%, decreased collagen fiber density, and reduced the collagen structure index compared to vehicle controls at 3 mg/kg dose.
Showed a trend toward reduced Picro Sirius Red positive area, which did not reach statistical significance.
Animal Model: Macaca fascicularis (2-5 years of age, 2.7-4.3 kg, both sexes, mainland Asia origin)[3]
Dosage: 30 mg/kg/day; 60 mg/kg/day; 180/120 mg/kg/day (initial 3 days at 180 mg/kg/day, then 25 days at 120 mg/kg/day)
Administration: oral gavage; daily; 28 days
Result: Induced early-stage invasive urothelial carcinoma in 2 of 6 monkeys at 180/120 mg/kg/day.
Showed significantly increased urothelial cell proliferation, with Ki67 scores of 48 and 49 positive nuclei per 1000 urothelial cells in monkeys with tumors at 180/120 mg/kg/day, and Ki67 scores of 55 and 17 positive nuclei per 1000 urothelial cells in one male and one female monkey at 30 mg/kg/day, respectively.
Reached mean steady-state plasma Cmax levels (total) of 2.6 μM on day 28 at 30 mg/kg/day and 7.8 μM on day 28 at 120 mg/kg/day, exceeding the integrin αvβ6 cellular IC50.
Caused no treatment-related clinical signs, body weight changes, or food consumption effects at 30, 60, or 120 mg/kg/day.
Molecular Weight

537.67

Formula

C31H40FN3O4

CAS No.
SMILES

OC([C@@H](N1C[C@@H](CC1)OCCCCC(N2)=CC=C3C2=NCCC3)C4=C(C=CC(F)=C4)[C@@H]5CCC6(CO5)CC6)=O

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Room temperature in continental US; may vary elsewhere.

Storage

Please store the product under the recommended conditions in the Certificate of Analysis.

Purity & Documentation
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  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

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MORF-627
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HY-149136
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