Review Article | Published:

Therapy Insight: cancer anorexia–cachexia syndrome—when all you can eat is yourself

Nature Clinical Practice Oncology volume 2, pages 158165 (2005) | Download Citation

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Abstract

Tumor growth is associated with profound metabolic and neurochemical alterations, which can lead to the onset of anorexia–cachexia syndrome. Anorexia is defined as the loss of the desire to eat, while cachexia results from progressive wasting of skeletal muscle mass—and to a lesser extent adipose tissue—occurring even before weight loss becomes apparent. Cancer anorexia–cachexia syndrome is highly prevalent among cancer patients, has a large impact on morbidity and mortality, and impinges on patient quality of life. However, its clinical relevance is frequently overlooked, and treatments are usually only attempted during advanced stages of the disease. The pathogenic mechanisms of cachexia and anorexia are multifactorial, but cytokines and tumor-derived factors have a significant role, thereby representing a suitable therapeutic target. Energy expenditure in anorexia is frequently increased while energy intake is decreased, which further exacerbates the progressive deterioration of nutritional status. The optimal therapeutic approach to anorectic–cachectic cancer patients should be based on both changes in dietary habits, achieved via nutritional counseling; and drug therapy, aimed at interfering with cytokine expression or activity. Our improved understanding of the influence a tumor has on the host's metabolism is advancing new therapeutic approaches, which are likely to result in better preservation of nutritional status if started concurrently with specific antineoplastic treatment.

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Author information

Affiliations

  1. A Laviano is Assistant Professor of Medicine, Department of Clinical Medicine, University La Sapienza, Rome, Italy.

    • Alessandro Laviano
  2. MM Meguid is Professor of Surgery, Department of Surgery, Neuroscience Program, University Hospital, SUNY Upstate Medical University, Syracuse, New York, USA.

    • Michael M Meguid
  3. A Inui is Professor of Internal Medicine, Department of Behavioral Medicine, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan.

    • Akio Inui
  4. M Muscaritoli is Associate Professor of Medicine, Department of Clinical Medicine, University La Sapienza, Rome, Italy.

    • Maurizio Muscaritoli
  5. F Rossi-Fanelli is Professor of Medicine and Chairman, Department of Clinical Medicine, University La Sapienza, Rome, Italy.

    • Filippo Rossi-Fanelli

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Competing interests

F Rossi-Fanelli received a research grant from the Ross Products Division of Abbott Laboratories, Columbus, Ohio, USA. Abbott Laboratories produces a caloric supplement enriched with fish oil.

Corresponding author

Correspondence to Alessandro Laviano.

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DOI

https://doi.org/10.1038/ncponc0112

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