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Updated: Aug 10, 2026

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Quantitative Mass Spectrometric Profiling of Cancer-cell Proteomes Derived From Liquid and Solid Tumors
Published on: February 27, 2015
Cancer and protein metabolism
The Surgical Clinics of North America
|October 1, 1986
Summary
Protein depletion is a significant issue for cancer patients. Nutritional support and understanding micronutrient roles in cancer metabolism are crucial for effective patient care and treatment outcomes.
Area of Science:
- Oncology
- Nutritional Science
- Metabolism
Background:
- Protein depletion is a common and serious problem in cancer patients.
- Existing knowledge of the mechanisms underlying cancer-associated protein depletion is incomplete.
- Nutritional support strategies are being explored for cancer patients.
Purpose of the Study:
- To review current data on protein depletion in cancer patients.
- To explore advances in nutritional formulations for energy and nitrogen sources.
- To examine the role of micronutrients in nitrogen metabolism for cancer patients.
Main Methods:
- Literature review of studies on protein depletion in cancer.
- Analysis of nutritional support and formulation data.
- Review of research on micronutrients and nitrogen metabolism.
Main Results:
- Protein depletion is a significant concern in cancer.
- Nutritional support may offer benefits, with advances in energy and nitrogen sources.
- The impact of micronutrients on tumor metabolism and nitrogen balance is largely unknown.
- Current nutritional regimens may not meet the specific metabolic needs of cancer patients.
Conclusions:
- Further research is needed to understand micronutrient requirements in cancer patients.
- Clarifying micronutrient utilization by tumors is essential.
- Tailoring nutritional interventions to cancer-specific metabolic needs may improve outcomes.
Related Concept Videos
Cancer
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.
Adaptive Mechanisms in Cancer Cells
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,...
mTOR Signaling and Cancer Progression
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 yeast homolog called TOR. The mTOR protein complex in mammalian cells plays a major role in balancing anabolic processes such as the synthesis of proteins, lipids, and nucleotides and catabolic processes, such as autophagy in response to environmental cues, such as availability of nutrients and growth factors.
The mTOR pathway or the...
The mTOR pathway or the...
Adaptive Mechanisms in Cancer Cells
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,...
mTOR Signaling and Cancer Progression
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 yeast homolog called TOR. The mTOR protein complex in mammalian cells plays a major role in balancing anabolic processes such as the synthesis of proteins, lipids, and nucleotides and catabolic processes, such as autophagy in response to environmental cues, such as availability of nutrients and growth factors.
The mTOR pathway or the...
The mTOR pathway or the...
Overview of Protein Metabolism
Proteins are broken down into amino acids during digestion. Unlike fats and carbohydrates, which are stored for later use, proteins are not. Instead, amino acids are either used to produce ATP through oxidation or contribute to the creation of new proteins for the growth and repair of the body. Any surplus amino acids from the diet are converted into glucose or triglycerides rather than excreted.
Amino acids play various roles in the body once they are absorbed into cells. They are restructured...
Amino acids play various roles in the body once they are absorbed into cells. They are restructured...

