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Chapter 20

Cancer

Co to jest rak?
Co to jest rak?
Cells and tissues must meticulously coordinate their activities for the normal functioning of the human body. Therefore, they exhibit socially ...
Nowotwory powstają w wyniku mutacji somatycznych w pojedynczej komórce
Nowotwory powstają w wyniku mutacji somatycznych w pojedynczej komórce
Cancer arises from mutations in the critical genes that allow healthy cells to escape cell cycle regulation and acquire the ability to proliferate ...
Progresja guza
Progresja guza
Tumor progression is a phenomenon where the pre-formed tumor acquires successive mutations to become clinically more aggressive and malignant. In the ...
Mechanizmy adaptacyjne w komórkach nowotworowych
Mechanizmy adaptacyjne w komórkach nowotworowych
Cancer cells accumulate genetic changes at an abnormally rapid rate due to the defects in the DNA repair mechanisms. From an evolutionary perspective, ...
Mikrośrodowisko guza
Mikrośrodowisko guza
Every normal cell or tissue is embedded in a complex local environment called stroma, consisting of different cell types, a basal membrane, and blood ...
Przerzutów
Przerzutów
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) ...
Geny krytyczne dla raka I: protoonkogeny
Geny krytyczne dla raka I: protoonkogeny
Genes usually encode proteins necessary for the proper functioning of a healthy cell. Mutations can often cause changes to the gene expression pattern, ...
Mechanizmy nowotworów wywołanych przez retrowirusy
Mechanizmy nowotworów wywołanych przez retrowirusy
Retroviruses are RNA viruses that have been shown to cause cancers in diverse species, including chickens, mice, cats, and monkeys. The RNA genomes of ...
Gen <em>Ras</em>
Gen Ras
The Ras-gene-encoded proteins are regulators of signaling pathways controlling cell proliferation, differentiation, or cell survival. The Ras-gene family ...
Utrata funkcji genu supresorowego nowotworu
Utrata funkcji genu supresorowego nowotworu
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 ...
Sygnalizacja mTOR i progresja raka
Sygnalizacja mTOR i progresja raka
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 ...
Rakowe komórki macierzyste i utrzymanie guza
Rakowe komórki macierzyste i utrzymanie guza
Early diagnosis and treatment can often cure cancer. However, even with treatment, residual cells called cancer stem cells (CSC) might remain, often ...
Badanie mysich modeli raka
Badanie mysich modeli raka
Mice have long served as models for studying human biology and pathology because of their phylogenetic and physiological similarity with humans. They are ...
Profilaktyka raka
Profilaktyka raka
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 onkologiczne
Terapie onkologiczne
Cancer therapies are various modes of treatment, such as surgery, radiation therapy, and chemotherapy that are administered to cancer patients. However, ...
Celowane terapie przeciwnowotworowe
Celowane terapie przeciwnowotworowe
The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between ...
Nowotwory oporne na leczenie
Nowotwory oporne na leczenie
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 ...
Terapie skojarzone i medycyna spersonalizowana
Terapie skojarzone i medycyna spersonalizowana
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 ...
Geny krytyczne dla raka II: Geny supresorowe guza
Geny krytyczne dla raka II: Geny supresorowe guza
Genes usually encode proteins necessary for the proper functioning of a healthy cell. Mutations can often cause changes to the gene expression pattern, ...
Gen siatkówczaka
Gen siatkówczaka
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 ...
Wirus mięsaka Rous (RSV) i rak
Wirus mięsaka Rous (RSV) i rak
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 ...
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