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Remission Phase in Paediatric Type 1 Diabetes: New Understanding and Emerging Biomarkers
Mireia Fonolleda1, Marta Murillo2, Federico Vázquez3
1Immunology Section, Germans Trias i Pujol Research Institute and University Hospital, Badalona, Spain.
Insights
Type 1 diabetes (T1D) remission, or the "honeymoon phase," offers a window into potential immune regulation and islet regeneration. Identifying biomarkers during this period may improve T1D prognosis and guide future immunotherapies.
Area of Science:
- Immunology
- Endocrinology
- Metabolic Diseases
Background:
- Type 1 diabetes (T1D) is an autoimmune disease causing beta-cell destruction, leading to hyperglycemia.
- Onset is common in children and young adults, often when significant beta-cell loss has already occurred.
- Current treatment involves lifelong insulin therapy, which cannot prevent long-term complications.
Purpose of the Study:
- To review the remission phase, or "honeymoon phase," in childhood Type 1 diabetes.
- To explore the potential for immune tolerance recovery and islet regeneration during this period.
- To identify peripheral biomarkers indicative of immunoregulation or regeneration for improved T1D management.
Main Methods:
- Literature review focusing on the remission phase in childhood T1D.
- Analysis of studies investigating immunological changes and beta-cell function during remission.
- Exploration of potential biomarkers for immunoregulation and islet regeneration.
Main Results:
- The honeymoon phase involves partial remission with reduced exogenous insulin needs.
- This phase may be linked to a recovery of immune tolerance to beta-cell autoantigens.
- Remaining beta-cells show some capacity for insulin production during remission.
Conclusions:
- The remission phase in childhood T1D is a critical period for understanding disease dynamics.
- Identifying biomarkers of immune regulation and islet regeneration could predict glycaemic prognosis.
- This phase presents a potential window for administering future immunotherapies to modify disease progression.
Abstract:
Type 1 diabetes (T1D) is a metabolic disease of unknown aetiology that results from the autoimmune destruction of the β-cells. Clinical onset with classic hyperglycaemic symptoms occurs much more frequently in children and young adults, when less than 30% of β-cells remain. Exogenous insulin administration is the only treatment for patients. However, due to glucose dysregulation, severe complications develop gradually. Recently, an increase in T1D incidence has been reported worldwide, especially in children. Shortly after diagnosis, T1D patients often experience partial remission called "honeymoon phase," which lasts a few months, with minor requirements of exogenous insulin. In this stage, the remaining β-cells are still able to produce enough insulin to reduce the administration of exogenous insulin. A recovery of immunological tolerance to β-cell autoantigens could explain the regeneration attempt in this remission phase. This mini-review focuses on the remission phase in childhood T1D. Understanding this period and finding those peripheral biomarkers that are signs of immunoregulation or islet regeneration could contribute to the identification of patients with a better glycaemic prognosis and a lower risk of secondary complications. This remission phase could be a good checkpoint for the administration of future immunotherapies.
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