Effect of Substrate Reduction Therapy in Comparison to Enzyme Replacement Therapy on Immune Aspects and Bone Involvement in Gaucher Disease
Gaucher disease (GD) is caused by mutations in the <i>GBA</i> gene, leading to deficient activity of the lysosomal enzyme glucocerebrosidase. Among all the symptoms across various organ systems, bone disease is a major concern as it causes high morbidity and reduces quality of life. Enzy...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2020-03-01
|
| Series: | Biomolecules |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2218-273X/10/4/526 |
| _version_ | 1827719595790696448 |
|---|---|
| author | Renuka P. Limgala Ozlem Goker-Alpan |
| author_facet | Renuka P. Limgala Ozlem Goker-Alpan |
| author_sort | Renuka P. Limgala |
| collection | DOAJ |
| description | Gaucher disease (GD) is caused by mutations in the <i>GBA</i> gene, leading to deficient activity of the lysosomal enzyme glucocerebrosidase. Among all the symptoms across various organ systems, bone disease is a major concern as it causes high morbidity and reduces quality of life. Enzyme replacement therapy (ERT) is the most accepted treatment; however, there are still unmet needs. As an alternative, substrate reduction therapy (SRT) was developed using glucosylceramide synthase inhibitors. In the current study, the effects of ERT vs. SRT were compared, particularly the immunological and bone remodeling aspects. GD subjects were divided into three cohorts based on their treatment at initial visit: ERT, SRT, and untreated (UT). Immunophenotyping showed no significant immune cell alterations between the cohorts. Expression of RANK/RANKL/Osteoprotegerin pathway components on immune cells and the secreted markers of bone turnover were analyzed. In the ERT cohort, no significant changes were observed in RANK, RANKL or serum biomarkers. RANKL on T lymphocytes, Osteopontin and MIP-1β decreased with SRT treatment indicating probable reduction in osteoclast activity. Other secreted factors, Osteocalcin and RANKL/Osteoprotegerin did not change with the treatment status. Insights from the study highlight personalized differences between subjects and possible use of RANK pathway components as markers for bone disease progression. |
| first_indexed | 2024-03-10T20:47:17Z |
| format | Article |
| id | doaj.art-d87fdffe56ce4366955d863ec634eb7c |
| institution | Directory Open Access Journal |
| issn | 2218-273X |
| language | English |
| last_indexed | 2024-03-10T20:47:17Z |
| publishDate | 2020-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Biomolecules |
| spelling | doaj.art-d87fdffe56ce4366955d863ec634eb7c2023-11-19T20:13:06ZengMDPI AGBiomolecules2218-273X2020-03-0110452610.3390/biom10040526Effect of Substrate Reduction Therapy in Comparison to Enzyme Replacement Therapy on Immune Aspects and Bone Involvement in Gaucher DiseaseRenuka P. Limgala0Ozlem Goker-Alpan1Lysosomal and Rare Disorders Research and Treatment Center (LDRTC), Fairfax, VA 22030, USALysosomal and Rare Disorders Research and Treatment Center (LDRTC), Fairfax, VA 22030, USAGaucher disease (GD) is caused by mutations in the <i>GBA</i> gene, leading to deficient activity of the lysosomal enzyme glucocerebrosidase. Among all the symptoms across various organ systems, bone disease is a major concern as it causes high morbidity and reduces quality of life. Enzyme replacement therapy (ERT) is the most accepted treatment; however, there are still unmet needs. As an alternative, substrate reduction therapy (SRT) was developed using glucosylceramide synthase inhibitors. In the current study, the effects of ERT vs. SRT were compared, particularly the immunological and bone remodeling aspects. GD subjects were divided into three cohorts based on their treatment at initial visit: ERT, SRT, and untreated (UT). Immunophenotyping showed no significant immune cell alterations between the cohorts. Expression of RANK/RANKL/Osteoprotegerin pathway components on immune cells and the secreted markers of bone turnover were analyzed. In the ERT cohort, no significant changes were observed in RANK, RANKL or serum biomarkers. RANKL on T lymphocytes, Osteopontin and MIP-1β decreased with SRT treatment indicating probable reduction in osteoclast activity. Other secreted factors, Osteocalcin and RANKL/Osteoprotegerin did not change with the treatment status. Insights from the study highlight personalized differences between subjects and possible use of RANK pathway components as markers for bone disease progression.https://www.mdpi.com/2218-273X/10/4/526Gaucher diseasebone involvementenzyme replacement therapysubstrate reduction therapyOsteoimmunologyRANK/RANKL |
| spellingShingle | Renuka P. Limgala Ozlem Goker-Alpan Effect of Substrate Reduction Therapy in Comparison to Enzyme Replacement Therapy on Immune Aspects and Bone Involvement in Gaucher Disease Biomolecules Gaucher disease bone involvement enzyme replacement therapy substrate reduction therapy Osteoimmunology RANK/RANKL |
| title | Effect of Substrate Reduction Therapy in Comparison to Enzyme Replacement Therapy on Immune Aspects and Bone Involvement in Gaucher Disease |
| title_full | Effect of Substrate Reduction Therapy in Comparison to Enzyme Replacement Therapy on Immune Aspects and Bone Involvement in Gaucher Disease |
| title_fullStr | Effect of Substrate Reduction Therapy in Comparison to Enzyme Replacement Therapy on Immune Aspects and Bone Involvement in Gaucher Disease |
| title_full_unstemmed | Effect of Substrate Reduction Therapy in Comparison to Enzyme Replacement Therapy on Immune Aspects and Bone Involvement in Gaucher Disease |
| title_short | Effect of Substrate Reduction Therapy in Comparison to Enzyme Replacement Therapy on Immune Aspects and Bone Involvement in Gaucher Disease |
| title_sort | effect of substrate reduction therapy in comparison to enzyme replacement therapy on immune aspects and bone involvement in gaucher disease |
| topic | Gaucher disease bone involvement enzyme replacement therapy substrate reduction therapy Osteoimmunology RANK/RANKL |
| url | https://www.mdpi.com/2218-273X/10/4/526 |
| work_keys_str_mv | AT renukaplimgala effectofsubstratereductiontherapyincomparisontoenzymereplacementtherapyonimmuneaspectsandboneinvolvementingaucherdisease AT ozlemgokeralpan effectofsubstratereductiontherapyincomparisontoenzymereplacementtherapyonimmuneaspectsandboneinvolvementingaucherdisease |