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Central Neurotoxicity of Chemotherapy

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Handbook of Cancer and Immunology

Abstract

It is undeniable that the introduction of chemotherapeutic drugs has significantly increased the survival of cancer patients. In recent years, new drugs are being developed for cancer treatment, but the use of classical chemotherapeutic agents is still essential. Unfortunately, most treatments, including current antitumor drugs and newer treatments, come with important adverse effects. Therefore, characterization and treatment of the adverse effects and sequelae associated with chemotherapy is an urgent clinical need.

Drugs used to combat cancer inhibit the proliferation of tumor cells and induce apoptosis or other forms of cell death. But these mechanisms are also responsible for the development of undesirable side effects as other types of cells may be affected, including neurons, which are not fast-dividing cells. Thus, chemotherapy may induce neurotoxicity.

The blood-brain barrier is responsible for the protection of the central nervous system, but it is still vulnerable to antitumoral drugs. Central side effects of chemotherapy are diverse and include encephalopathy, headache, seizures, cerebellar syndromes, visual loss, myelopathy, cerebrovascular complications, and confusional states. In addition, chemotherapy has been correlated with mild deficits of memory and cognition, known as chemotherapy-induced cognitive impairment, “chemobrain,” or “chemofog.” These central toxicities could be the result from direct damage to neural tissues as well as from systemic causes.

This chapter will review and compile the main symptoms of central neurotoxicity described in patients treated with conventional chemotherapy. To facilitate understanding, the main antitumoral drug classes have been summarized according to their mechanism of action.

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Abbreviations

5-FU:

5-Fluorouracil

Ara-C:

Cytarabine

BBB:

Blood-brain barrier

BDNF:

Brain-derived neurotrophic factor

CICI:

Chemotherapy-induced cognitive impairment

CNS:

Central nervous system

CT:

Computed tomography

DNA:

Deoxyribonucleic acid

GFAP:

Glial fibrillar acid protein

IA:

Intra-arterial

IT:

Intrathecal

IV:

Intravenous

mPTP:

Mitochondrial permeability transition pore

MRI:

Magnetic resonance imaging

RNA:

Ribonucleic acid

ROS:

Reactive oxygen species

SIADH:

Syndrome of inappropriate antidiuretic hormone secretion

TNF-α:

Tumor necrosis factor alpha

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Correspondence to Raquel Abalo .

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López-Gómez, L., Abalo, R., Vera, G. (2023). Central Neurotoxicity of Chemotherapy. In: Rezaei, N. (eds) Handbook of Cancer and Immunology. Springer, Cham. https://doi.org/10.1007/978-3-030-80962-1_345-2

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  • DOI: https://doi.org/10.1007/978-3-030-80962-1_345-2

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-030-80962-1

  • Online ISBN: 978-3-030-80962-1

  • eBook Packages: Springer Reference Biomedicine and Life SciencesReference Module Biomedical and Life Sciences

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Chapter history

  1. Latest

    Central Neurotoxicity of Chemotherapy
    Published:
    23 March 2023

    DOI: https://doi.org/10.1007/978-3-030-80962-1_345-2

  2. Original

    Central Neurotoxicity of Chemotherapy
    Published:
    30 December 2022

    DOI: https://doi.org/10.1007/978-3-030-80962-1_345-1