Related Experiment Video
Updated: Mar 6, 2026
09:03
Establishment of Hepatocarcinoma in BALB/c-nu Mice and Investigation of the Therapeutic Effect of the Sanleng Jiashen Formula
Published on: January 26, 2024
740
Cancer: Bad Luck or Punishment?
1Blokhin Cancer Research Center, Institute of Carcinogenesis, Moscow, 115478, Russia. alicht@mail.ru.
Biochemistry. Biokhimiia
|March 22, 2017
Summary
The "bad luck" hypothesis suggests random DNA replication errors in stem cells cause most cancer. This study analyzes epidemiological and genetic data, finding evidence supporting this internal factor hypothesis over external influences.
Area of Science:
- Oncology
- Genetics
- Epidemiology
Background:
- Cancer etiology is debated, with focus on intrinsic (internal) vs. extrinsic (external) factors.
- The "bad luck" hypothesis posits random DNA errors during cell division as a primary driver of cancer.
- This hypothesis has faced criticism, with counterarguments emphasizing extrinsic factors.
Purpose of the Study:
- To evaluate the validity of the "bad luck" hypothesis.
- To analyze epidemiological and genetic data in the context of cancer risk factors.
- To contribute to the ongoing debate on cancer development.
Main Methods:
- Analysis of epidemiological data correlating cancer risk with cell division rates.
- Examination of genetic data related to cancer development.
- Comparative analysis of intrinsic versus extrinsic factor contributions to cancer etiology.
Main Results:
- A correlation was observed between lifetime cancer risk and the total number of normal stem cell divisions.
- The study's findings support the "bad luck" hypothesis, attributing significant cancer variability to internal factors.
- Evidence presented favors random errors in DNA replication as a major cause of cancer.
Conclusions:
- The "bad luck" hypothesis, emphasizing random errors in normal stem cell division, is supported by the analyzed data.
- Intrinsic factors, specifically errors during DNA replication, play a substantial role in cancer development.
- Further research should consider the significant impact of internal, random events in cancer etiology.
More Related Videos
Related Concept Videos
02:12What is Cancer?
15.2K
Cells and tissues must meticulously coordinate their activities for the normal functioning of the human body. Therefore, they exhibit socially responsible behavior - resting, growing, dividing, differentiating, or dying - for the organism’s benefit. Cancer arises when cells divide uncontrollably and invade other tissues or organs.
Although people have known about cancer for centuries, it was only in 1761 that Giovanni Morgagni of Padua performed a detailed autopsy of...
Although people have known about cancer for centuries, it was only in 1761 that Giovanni Morgagni of Padua performed a detailed autopsy of...
15.2K
02:59Cancer Prevention
8.5K
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 exercise, eating healthy, and following a modest cancer prevention diet. Epidemiological studies have consistently shown that populations with vegetable and fruit-rich diets have reduced the incidence of cancer. On the other hand, populations who have a diet rich in animal fat, red meat, junk food, or high calories are predisposed to cancer.
Some...
Some...
8.5K
02:18Cancer
55.2K
Cancers arise due to mutations in genes involved in the regulation of cell division, which leads to unrestricted cell proliferation. Modern science and medicine have made great strides in the understanding and treatment of cancer, including eradicating cancer in some patients. However, there is still no cure for cancer. This is largely due to the fact that cancer is a large group of many diseases.
55.2K
02:21Cancers Originate from Somatic Mutations in a Single Cell
15.2K
Cancer arises from mutations in the critical genes that allow healthy cells to escape cell cycle regulation and acquire the ability to proliferate indefinitely. Though originating from a single mutation event in one of the originator cells, cancer progresses when the mutant cell lines continue to gain more and more mutations, and finally, become malignant. For example, chronic myelogenous leukemia (CML) develops initially as a non-lethal increase in white blood cells, which progressively...
15.2K
01:19Psychoneuroimmunology: Diabetes and Cancer
562
Chronic stress has been linked to both the onset and progression of serious health conditions, including Type 2 diabetes and cancer. Type 2 diabetes, a widespread chronic illness, is closely associated with obesity and insulin resistance, both of which often worsen under stress. Studies indicate that men experiencing high levels of chronic stress face a 45% higher risk of developing diabetes compared to those with minimal stress. Stress triggers physiological responses that elevate blood...
562
01:33Cancer-Critical Genes I: Proto-oncogenes
11.7K
Genes usually encode proteins necessary for the proper functioning of a healthy cell. Mutations can often cause changes to the gene expression pattern, thereby altering the phenotype.
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
11.7K