Accedi

Chapter 20

Cancer

Cosa sono i tumori?
Cosa sono i tumori?
Cells and tissues must meticulously coordinate their activities for the normal functioning of the human body. Therefore, they exhibit socially ...
I tumori hanno origine da mutazioni somatiche in una singola cellula
I tumori hanno origine da mutazioni somatiche in una singola cellula
Cancer arises from mutations in the critical genes that allow healthy cells to escape cell cycle regulation and acquire the ability to proliferate ...
Progressione del tumore
Progressione del tumore
Tumor progression is a phenomenon where the pre-formed tumor acquires successive mutations to become clinically more aggressive and malignant. In the ...
Meccanismi adattativi nelle cellule tumorali
Meccanismi adattativi nelle cellule tumorali
Cancer cells accumulate genetic changes at an abnormally rapid rate due to the defects in the DNA repair mechanisms. From an evolutionary perspective, ...
Il microambiente tumorale
Il microambiente tumorale
Every normal cell or tissue is embedded in a complex local environment called stroma, consisting of different cell types, a basal membrane, and blood ...
Metastasi
Metastasi
Metastasis is the spread of cancer cells from the original site to distant locations in the body. Cancer cells can spread via blood vessels (hematogenous) ...
Carcinogenesi I: proto-oncogeni
Carcinogenesi I: proto-oncogeni
Genes usually encode proteins necessary for the proper functioning of a healthy cell. Mutations can often cause changes to the gene expression pattern, ...
Meccanismi dei tumori indotti da retrovirus
Meccanismi dei tumori indotti da retrovirus
Retroviruses are RNA viruses that have been shown to cause cancers in diverse species, including chickens, mice, cats, and monkeys. The RNA genomes of ...
Il gene Ras
Il gene Ras
The Ras-gene-encoded proteins are regulators of signaling pathways controlling cell proliferation, differentiation, or cell survival. The Ras-gene family ...
Perdita di funzione dei geni oncosoppressori
Perdita di funzione dei geni oncosoppressori
Tumor suppressor genes are normal genes that can slow down cell division, repair DNA mistakes, or program the cells for apoptosis in case of irreparable ...
Via di segnalazione di mTOR e progressione del tumore
Via di segnalazione di mTOR e progressione del tumore
The mammalian target of rapamycin or mTOR protein was discovered in 1994 due to its direct interaction with rapamycin. The protein gets its name from a ...
Cellule staminali cancerose e mantenimento del tumore
Cellule staminali cancerose e mantenimento del tumore
Early diagnosis and treatment can often cure cancer. However, even with treatment, residual cells called cancer stem cells (CSC) might remain, often ...
Modelli murini per lo studio del tumore
Modelli murini per lo studio del tumore
Mice have long served as models for studying human biology and pathology because of their phylogenetic and physiological similarity with humans. They are ...
Prevenzione del cancro
Prevenzione del cancro
Several factors can increase the risk of cancer in an individual. About 50% of cancer cases can be prevented by adopting a healthy lifestyle, regular ...
Terapie tumorali
Terapie tumorali
Cancer therapies are various modes of treatment, such as surgery, radiation therapy, and chemotherapy that are administered to cancer patients. However, ...
Terapie tumorali mirate
Terapie tumorali mirate
The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between ...
Tumori resistenti al trattamento
Tumori resistenti al trattamento
Cancer is the second leading cause of death in the United States. A cancer cell is genetically unstable and hence can mutate faster. They can also modify ...
Medicina personalizzata e terapie combinate
Medicina personalizzata e terapie combinate
Combining two or more treatment methods increases the life span of cancer patients while reducing damage to vital organs or tissue from the overuse of a ...
Carcinogenesi II: oncosoppressori
Carcinogenesi II: oncosoppressori
Genes usually encode proteins necessary for the proper functioning of a healthy cell. Mutations can often cause changes to the gene expression pattern, ...
Il gene del retinoblastoma (Rb)
Il gene del retinoblastoma (Rb)
Tumor suppressor genes are normal genes that can slow down cell division, repair DNA mistakes, or program the cells for apoptosis in case of irreparable ...
Virus del sarcoma di Rous (RSV) e cancro
Virus del sarcoma di Rous (RSV) e cancro
Rous Sarcoma virus or RSV was discovered by F. Peyton Rous in the year 1911 as a filterable transmissible agent that could cause tumors in chickens. He ...
JoVE Logo

Riservatezza

Condizioni di utilizzo

Politiche

Ricerca

Didattica

CHI SIAMO

Copyright © 2025 MyJoVE Corporation. Tutti i diritti riservati