Helpful, albeit hazardous! Esophageal stem-cell injection in systemic sclerosis

Area of Science:

• Gastroenterology
• Regenerative Medicine
• Rheumatology

Background:

• Systemic sclerosis frequently causes gastroesophageal reflux, impacting patient quality of life and potentially worsening interstitial lung disease.
• Current treatments for gastroesophageal reflux in systemic sclerosis have limitations.
• This study explored esophageal stem cell injection as a novel therapeutic approach.

Observation:

• A pilot study involved eight systemic sclerosis patients with symptomatic gastroesophageal reflux.
• Adipose-derived stem cells were injected into the distal esophagus.
• Patients were assessed using the GERD HRQL questionnaire and high-resolution manometry pre- and post-procedure.

Findings:

• All patients reported improved GERD HRQL scores and reduced proton-pump inhibitor use post-injection.
• Esophageal motility function, assessed by manometry, showed no significant changes.
• One patient experienced a serious adverse event: multiple cerebellar embolic infarcts.

Implications:

• Esophageal stem cell injection demonstrates potential for improving acid reflux symptoms in systemic sclerosis.
• The positive outcomes necessitate the development of a safer esophageal fat injection technique.
• Further investigation is warranted to optimize delivery and mitigate risks for this regenerative therapy.