Related Experiment Video
Updated: Oct 1, 2025
05:23
Author Spotlight: Decoding Metastasis-to-Metastasis Seeding Using a New In Vivo Technique for Tracking Breast Cancer Spread
Published on: July 7, 2023
1.3K
Mapping the long road to cancer
David M Cheek1, Kamila Naxerova1
1Center for Systems Biology, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.
Cell
|March 9, 2022
Summary
Cancer initiation involves accumulated mutations. A new study reveals key mutations can arise decades before diagnosis by analyzing single-cell genomes in blood cancer patients, detailing pre-cancerous evolution.
Area of Science:
- Oncology
- Genetics
- Molecular Biology
Background:
- Cellular mutations accumulate over a lifetime.
- Specific mutation combinations can initiate cancer development.
- Understanding the timeline of pre-cancerous mutations is crucial for early detection and intervention.
Purpose of the Study:
- To infer detailed timelines of pre-cancerous evolution.
- To investigate the timing of key mutations in blood malignancies.
- To understand the early stages of cancer development at a single-cell level.
Main Methods:
- Sequencing of single-cell genomes from patients with blood malignancies.
- Computational analysis to reconstruct evolutionary histories.
- Comparative analysis of mutation accumulation patterns.
Main Results:
- Key cancer-driving mutations can be acquired decades before clinical diagnosis.
- Detailed timelines of pre-cancerous genetic evolution were reconstructed.
- Significant heterogeneity in mutation acquisition timing was observed among cells.
Conclusions:
- Cancer development is a lengthy process, with critical mutations potentially occurring much earlier than previously thought.
- Single-cell genome sequencing provides unprecedented resolution for studying pre-cancerous evolution.
- These findings have implications for understanding cancer initiation and developing early diagnostic strategies.
More Related Videos
Related Concept Videos
02:07Tumor Progression
6.5K
Tumor progression is a phenomenon where the pre-formed tumor acquires successive mutations to become clinically more aggressive and malignant. In the 1950s, Foulds first described the stepwise progression of cancer cells through successive stages.
Colon cancer is one of the best-documented examples of tumor progression. Early mutation in the APC gene in colon cells causes a small growth on the colon wall called a polyp. With time, this polyp grows into a benign, pre-cancerous tumor. Further...
Colon cancer is one of the best-documented examples of tumor progression. Early mutation in the APC gene in colon cells causes a small growth on the colon wall called a polyp. With time, this polyp grows into a benign, pre-cancerous tumor. Further...
6.5K
02:12What is Cancer?
11.4K
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...
11.4K
01:21Cancer Survival Analysis
472
Cancer survival analysis focuses on quantifying and interpreting the time from a key starting point, such as diagnosis or the initiation of treatment, to a specific endpoint, such as remission or death. This analysis provides critical insights into treatment effectiveness and factors that influence patient outcomes, helping to shape clinical decisions and guide prognostic evaluations. A cornerstone of oncology research, survival analysis tackles the challenges of skewed, non-normally...
472
02:18Cancer
50.2K
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.
50.2K
02:53Adaptive Mechanisms in Cancer Cells
6.0K
Cancer cells accumulate genetic changes at an abnormally rapid rate due to the defects in the DNA repair mechanisms. From an evolutionary perspective, such genetic instability is advantageous for cancer development. Mutant cell lines accumulate a series of beneficial mutations that contribute to their progression into cancer.
Some of the advantages that cancer cells have on normal cells include - enhanced ability to divide without terminally differentiating, induce new blood vessel formation,...
Some of the advantages that cancer cells have on normal cells include - enhanced ability to divide without terminally differentiating, induce new blood vessel formation,...
6.0K
02:21Cancers Originate from Somatic Mutations in a Single Cell
13.2K
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...
13.2K