Abstract
One new lathyrane-type diterpenoid, euphlathin A (1), and 11 known analogues (2–12), were isolated from the fruits of Euphorbia lathyris. Their structures were elucidated by spectroscopic data. The absolute configurations of 1 were established by single-crystal X-ray crystallography. All diterpenoids (1–12) were evaluated for antiproliferative activity against the human hypertrophic scar (HTS) cells. Compound 1 exhibited significantly against HTS cells growth with an IC50 value of 6.33 μM. Morphological features of apoptosis were evaluated in 1-treated HTS cells. Wound healing assays indicated that 1 significantly inhibited the migration of HTS at 24 h and 48 h. Compound 1 effectively induced apoptosis of HTS, which was associated with G2/M or S phase cell cycle arrest. Flow cytometric analysis showed that the treatment by 1 significantly induced HTS cell apoptosis in a dose-dependent manner. Overall, euphlathin A (1) has the potential to be a therapeutic agent for the treatment of hyperplastic scar therapy.
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