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Capítulo 38

Cancer

¿Qué es el cáncer?
¿Qué es el cáncer?
Cells and tissues must meticulously coordinate their activities for the normal functioning of the human body. Therefore, they exhibit socially ...
Los cánceres se originan a partir de mutaciones somáticas en una sola célula
Los cánceres se originan a partir de mutaciones somáticas en una sola célula
Cancer arises from mutations in the critical genes that allow healthy cells to escape cell cycle regulation and acquire the ability to proliferate ...
Progresión tumoral
Progresión tumoral
Tumor progression is a phenomenon where the pre-formed tumor acquires successive mutations to become clinically more aggressive and malignant. In the ...
Mecanismos adaptativos en células cancerosas
Mecanismos adaptativos en células cancerosas
Cancer cells accumulate genetic changes at an abnormally rapid rate due to the defects in the DNA repair mechanisms. From an evolutionary perspective, ...
El microambiente tumoral
El microambiente tumoral
Every normal cell or tissue is embedded in a complex local environment called stroma, consisting of different cell types, a basal membrane, and blood ...
Metástasis
Metástasis
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) ...
Genes Críticos para el Cáncer I: Proto-oncogenes
Genes Críticos para el Cáncer I: Proto-oncogenes
Genes usually encode proteins necessary for the proper functioning of a healthy cell. Mutations can often cause changes to the gene expression pattern, ...
Genes Críticos para el Cáncer II: Genes Supresores de Tumores
Genes Críticos para el Cáncer II: Genes Supresores de Tumores
Genes usually encode proteins necessary for the proper functioning of a healthy cell. Mutations can often cause changes to the gene expression pattern, ...
Pérdida de las funciones de los genes supresores de tumores
Pérdida de las funciones de los genes supresores de tumores
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 ...
El gen del retinoblastoma
El gen del retinoblastoma
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 ...
Mecanismos de los cánceres inducidos por retrovirus
Mecanismos de los cánceres inducidos por 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 ...
Virus del sarcoma de Rous (VRS) y cáncer
Virus del sarcoma de Rous (VRS) y cáncer
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 ...
El gen Ras
El gen Ras
The Ras-gene-encoded proteins are regulators of signaling pathways controlling cell proliferation, differentiation, or cell survival. The Ras-gene family ...
Señalización de mTOR y progresión del cáncer
Señalización de mTOR y progresión del cáncer
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 ...
Células madre cancerosas y mantenimiento de tumores
Células madre cancerosas y mantenimiento de tumores
Early diagnosis and treatment can often cure cancer. However, even with treatment, residual cells called cancer stem cells (CSC) might remain, often ...
Estudio de modelos de cáncer en ratones
Estudio de modelos de cáncer en ratones
Mice have long served as models for studying human biology and pathology because of their phylogenetic and physiological similarity with humans. They are ...
Prevención del cáncer
Prevención del cáncer
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 ...
Terapias contra el cáncer
Terapias contra el cáncer
Cancer therapies are various modes of treatment, such as surgery, radiation therapy, and chemotherapy that are administered to cancer patients. However, ...
Terapias dirigidas contra el cáncer
Terapias dirigidas contra el cáncer
The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between ...
Cánceres resistentes al tratamiento
Cánceres resistentes al tratamiento
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 ...
Terapias Combinadas y Medicina Personalizada
Terapias Combinadas y Medicina Personalizada
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 ...
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