Carregant...
Fitxers
Tipus de document
ArticleVersió
Versió publicadaData de publicació
Tots els drets reservats
Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/170073
Planarian Cell Number Depends on blitzschnell, a Novel Gene Family That Balances Cell Proliferation and Cell Death
Títol de la revista
Director/Tutor
ISSN de la revista
Títol del volum
Recurs relacionat
Resum
Control of cell number is crucial to define body size during animal development and to restrict tumoral transformation. The cell number is determined by the balance between cell proliferation and cell death. Although many genes are known to regulate those processes, the molecular mechanisms underlying the relationship between cell number and body size remain poorly understood. This relationship can be better understood by studying planarians, flatworms that continuously change their body size according to nutrient availability. We identified a novel gene family, blitzschnell (bls), that consists of de novo and taxonomically restricted genes that control cell proliferation:cell death ratio. Their silencing promotes faster regeneration and increases cell number during homeostasis. Importantly, this increase in cell number leads to an increase in body size only in a nutrient-rich environment; in starved planarians, silencing results in a decrease in cell size and cell accumulation that ultimately produces overgrowths. bls expression is downregulated after feeding and is related to activity of the insulin/Akt/mTOR network, suggesting that the bls family evolved in planarians as an additional mechanism for restricting cell number in nutrient-fluctuating environments.
Matèries (anglès)
Citació
Citació
PASCUAL CARRERAS, Eudald, MARIN BARBA, Marta, HERRERA ÚBEDA, Carlos, FONT MARTÍN, Daniel, ECKELT, Kay, SOUSA, Nidia de, GARCIA FERNÁNDEZ, Jordi, SALÓ I BOIX, Emili, ADELL I CREIXELL, Teresa. Planarian Cell Number Depends on blitzschnell, a Novel Gene Family That Balances Cell Proliferation and Cell Death. _Development_. 2020. Vol. 147, núm. 7, pàgs. 184044. [consulta: 25 de febrer de 2026]. ISSN: 0950-1991. [Disponible a: https://hdl.handle.net/2445/170073]