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  • Title: Ambroxol Chaperone Therapy for Gaucher Disease Type I-Associated Liver Cirrhosis and Portal Hypertension: A Case Report.
    Author: Zhang P, Zheng MF, Cui SY, Zhang W, Gao RP.
    Journal: Endocr Metab Immune Disord Drug Targets; 2022; 22(6):658-662. PubMed ID: 34802413.
    Abstract:
    BACKGROUND: Gaucher Disease (GD) is a rare autosomal recessive inherited disease caused by the deficiency of glucocerebrosidase and characterized by a broad spectrum of clinical manifestations, including hepatosplenomegaly, bone infiltration, and cytopenia. Moreover, it is even involved in the central nervous system. GD is classified into three phenotypes on the ground of neurologic involvement: type 1 (GD1), the commonly adult-onset, non-neuropathic variant; type 2 (GD2), the acute neuropathic form; and type 3 (GD3), the severe chronic neuro-visceral form. Recently, several studies have shown a promising outcome of ambroxol chaperone therapy for the treatment of GD, but its therapeutic role in GD1-associated liver cirrhosis and portal hypertension was not verified. CASE PRESENTATION: A 36-year-old male patient was admitted for esophageal varices lasting for one year with a 34-year history of liver and spleen enlargement. The patient was diagnosed with GD1 with cirrhosis and portal hypertension based on the identification of Gaucher cells and advanced fibrosis in the liver biopsy tissue and two known pathogenic mutations on the glucocerebrosidase (GBA) gene. The patient received 660 mg/d of ambroxol for up to two years. At his six-month follow- up, the patient exhibited a remarkable increase in GBA activity (+35.5%) and decrease in liver stiffness (-19.5%) and portal vein diameter (-41.2%) as examined by ultrasound elastography and computer tomography, respectively. At two-year follow-up, the liver stiffness was further reduced (-55.5%) in comparison with untreated patients. CONCLUSION: This case report suggests that long-term treatment with high dose ambroxol may play a role in the reduction of hepatic fibrosis in GD1.
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