Searching for Innovative Functional Foods: Correlation Between Chemopreventive Potential and Bioactive Compounds...

Area of Science:

• Oncology
• Plant Science
• Space Biology

Background:

• Brassica sprouts possess known chemopreventive properties.
• Investigating the impact of extreme environments on bioactive compounds is crucial for novel therapeutic development.

Purpose of the Study:

• To assess the influence of a space-like environment (microgravity and darkness) on the chemopreventive potential of Brassica sprouts against thyroid cancer cells.
• To evaluate the cytotoxic and antiproliferative effects of Brassica sprout extracts on both cancerous and normal thyroid cells in vitro.

Main Methods:

• Cultivation of broccoli, kale, kohlrabi, and Brussels sprouts under simulated microgravity and darkness for 5-7 days.
• Preparation of sprout extracts and assessment of their cytotoxic and antiproliferative activities using in vitro assays against thyroid cancer and normal thyroid cell lines.

Main Results:

• Microgravity stimulated kohlrabi sprout extract to reduce thyroid cancer cell viability by ~50% while sparing normal cells.
• Broccoli sprout extracts exhibited potent antiproliferative effects on normal thyroid cells, particularly under darkness, suggesting a role in preventing thyroid hyperplasia.
• Kale sprout extracts showed significantly enhanced antiproliferative activity under microgravity and darkness, with 7-day-old sprouts achieving ~90% inhibition.
• Kohlrabi sprout extracts also demonstrated increased antiproliferative activity, whereas Brussels sprout extracts showed unfavorable effects.

Conclusions:

• Microgravity and darkness conditions can significantly modulate the chemopreventive efficacy of Brassica sprouts against thyroid cancer cells in vitro.
• Broccoli and kohlrabi sprouts show particular promise for developing space-derived cancer chemoprevention strategies.
• Further research into optimizing cultivation conditions in space could unlock new avenues for cancer therapeutics.