Outline · [ Standard ] · Linear+ Scientists discover how cancer spreads, Disease sends bone marrow cells ...

http://www.msnbc.msn.com/id/10366968/ Scientists discover how cancer spreads Disease sends bone marrow cells to prepare new tumor sites, study finds [...] Instead of a cell just breaking off from a tumor and traveling through the bloodstream to another organ where it forms a secondary tumour, or metastasis, researchers in the United States have shown that the cancer sends out envoys to prepare the new site. [...] "The authors show that tumor cells can mobilize normal bone marrow cells, causing them to migrate to particular regions and change the local environment so as to attract and support a developing metastasis," Patricia Steeg, of the National Cancer Institute in Bethesda, Maryland, said in a commentary. Cells at the site of the metastasis multiply and produce a protein called fibronectin, which acts like a glue to attract and trap the bone marrow cells to create a landing pad or nest for the cancer cells. "These nests provide attachment factors for the tumor cells to implant and nurture them. It causes them not only to bind but to proliferate. Once that all takes place we have a fully formed metastatic site or secondary tumor," said Lyden. [...] Deci treaba cu cancerul e exact ca o mica mafie, foarte organizata si la fel de criminala.

http://www.msnbc.msn.com/id/10366968/

Scientists discover how cancer spreads
Disease sends bone marrow cells to prepare new tumor sites, study finds

[...]

Instead of a cell just breaking off from a tumor and traveling through the bloodstream to another organ where it forms a secondary tumour, or metastasis, researchers in the United States have shown that the cancer sends out envoys to prepare the new site.

[...]

"The authors show that tumor cells can mobilize normal bone marrow cells, causing them to migrate to particular regions and change the local environment so as to attract and support a developing metastasis," Patricia Steeg, of the National Cancer Institute in Bethesda, Maryland, said in a commentary.

Cells at the site of the metastasis multiply and produce a protein called fibronectin, which acts like a glue to attract and trap the bone marrow cells to create a landing pad or nest for the cancer cells.

"These nests provide attachment factors for the tumor cells to implant and nurture them. It causes them not only to bind but to proliferate. Once that all takes place we have a fully formed metastatic site or secondary tumor," said Lyden.

[...]

Deci treaba cu cancerul e exact ca o mica mafie, foarte organizata si la fel de criminala.

Suna aproape inteligent.

Ceea ce ar fi de inteles daca boala ar fi cauzata de un organism, cu viata si scopurile lui precise (inmultire, raspandire, ...) Dar cancerul nu e un organism in sine, nu are viata si nu se raspandeste (de al om la om). E doar un tesut scapat din "planul" de dezvoltare al organismului, celule mutante care nu-si mai indeplinesc rolul, doar consuma energie.
Si atunci de ce se inmultesc, de ce se raspandesc prin corp?
Ciudat...

Interesant. Totusi: nu exista cancer - exista cancere: asta inseamna ca mai multe tipuri de celule dezvolta fiecare un tip particular de cancer... Dcei daca SIDA e o boala cancrul e mai multe. De urmarit...

'tu-i mama lui de cancer, ce perfid poate fi! Ambii parinti mi-au murit de cancer. Poate reusesc astia o data sa-l invinga!!!!!!!

Poate reusesc astia o data sa-l invinga!!!!!!!

Sa speram. Sunt multe studi care sunt in progres. Astea sunt doar doua dintre ele.
Lance Armstrong Foundation
Pink Ribbon Foundation

This post has been edited by My Berlina: 15 Dec 2005, 01:49