Update on Neurological Manifestations of HTLV-1 Infection

Current Infectious Disease Reports
Abelardo Q C Araujo

Abstract

The human T cell lymphotropic virus type 1 (HTLV-1) is a retrovirus that infects 10-20 million persons around the world. Initially associated with the hematological malignancy adult T cell leukemia/lymphoma (ATLL), HTLV-1 is also the cause of a chronic progressive myelopathy named "HTLV-1-associated myelopathy/tropical spastic paraparesis" (HAM/TSP). HAM/TSP arises as the tip of the iceberg of an assortment of neurological syndromes triggered by the virus such as inflammatory myopathies, polyneuropathies, amyotrophic lateral sclerosis (ALS)-like syndromes, dysautonomia, and cognitive impairment. HAM/TSP typifies a chronic progressive spastic paraparesis with neurogenic bladder and minimal sensory signs. The neuropathology of HAM/TSP is concentrated in the thoracic spinal cord and is typically biphasic. Initially, there is a perivascular lymphocytic cuffing and mild parenchymal mononuclear infiltrates. Subsequently, this is replaced by gliosis and scarring. The neuropathogenesis of HTLV-1 is still partially understood. At present, the therapy of HAM/TSP remains basically symptomatic.

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Nov 18, 2017·Annual Review of Immunology·Charles R M Bangham
Jan 11, 2018·Journal of Neurovirology·Alberto R M MartinezMarcondes C França
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May 20, 2021·Revista Da Sociedade Brasileira De Medicina Tropical·Carolina RosadasRicardo Ishak

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