Ссылка
click to show
click to show
We need to translate Russian news post into natural English, format per rules.
First line: short headline under 90 chars, no markdown. Then blank line, then body split into short paragraphs (2-3 sentences each), separated by blank lines.
Wrap few genuinely important facts — key numbers, percentages, drug/company/gene names, dates — in double asterisks . At most 4-5 per post, never a whole sentence.
Wrap study/journal citations and publication references in single underscores _ (e.g., Nature Aging, July 2026).
We need to preserve all facts, numbers, names, citations exactly.
Let's extract facts:
- João Pedro de Magalhães (note spelling: "Жуан Педру де Магальяйнш" -> "João Pedro de Magalhães").
- He hypothesized that cancer protection may limit regeneration.
- On August 27 he hypothesized: developmental transitions could limit tissue restoration to reduce cancer risk.
- On August 22 Michael West asked whether a short reprogramming signal would suffice to restore large damaged tissue.
- Magalhães added safety condition: returning regenerative ability could weaken tumor protection.
- Partial reprogramming temporarily returns adult cell to a younger gene expression mode while preserving specialization.
- To repair damaged tissue, cells need to divide and build new structure.
- This growth simultaneously requires control: uncontrolled division forms tumor.
- In the post, which references an article in Nature Reviews Cancer, Magalhães formulated hypothesis: "One of the reasons why developmental transitions limit regenerative capacity is, as I suppose, to reduce cancer risk."
- By this evolutionary hypothesis, natural selection could have preserved mechanisms that reduced cancer risk in young organism.
- These same mechanisms stop dangerous cell division and after tissue damage may restrain its regeneration.
- Two animal experiments show such conflict in specific systems.
- In a 2010 study on mice, the MRL line, which has good ear-hole regeneration, ear connective tissue cells lacked p21 — a protein involved in division arrest.
- Mice lacking p21 closed ear holes similarly to MRL.
- In a 2015 study on zebrafish, scientists introduced human ARF gene into genome, which helps suppress tumor growth.
- After fin amputation, ARF activated in blastema — a mass of dividing cells from which the fin regrows.
- In a separate experiment, temporary activation of ARF inhibited regeneration via p53, the cell division control system.
- With partial reprogramming, one must simultaneously check whether the intervention restores tissue's regenerative ability and whether cell division control is preserved.
We need to wrap key numbers, percentages, drug/company/gene names, dates in .
Key facts: dates: August 27, August 22, 2010, 2015. Gene names: p21, ARF, p53. Possibly also MRL line (mouse strain). Also "Nature Reviews Cancer". Also maybe "Michael West". Also "João Pedro de Magalhães". But we need at most 4-5 double asterisks. So we need to be selective: maybe only the most important: dates (2010, 2015) and gene names (p21, ARF, p53) maybe also August dates? But we can only have 4-5. Let's decide: we can include 2010, 2015, p21, ARF, p53. That's 5. Or we could include August dates but they are less critical. We'll go with those.…
🔗 Read original →
3 ·