Corneal Immune Cells Are Increased in Patients With Multiple Sclerosis

Adnan Khan1, Yi Li2, Georgios Ponirakis1

  • 1Weill Cornell Medicine-Qatar, Research Division, Doha, Qatar.

Insights

Corneal confocal microscopy revealed increased immature immune cells in multiple sclerosis (MS) patients. This technique may serve as a biomarker for MS neuroimmune changes.

Area of Science:

  • Ophthalmology
  • Neurology
  • Immunology

Background:

  • Multiple sclerosis (MS) is an immune-mediated neurodegenerative disease.
  • Corneal confocal microscopy (CCM) detects immune cells in the cornea.
  • Previous studies linked increased corneal immune cells (IC) to peripheral neuropathies.

Purpose of the Study:

  • To compare corneal immune cell density and nerve distance in MS subtypes versus controls.
  • To investigate CCM's potential as a biomarker for MS.

Main Methods:

  • A cross-sectional study involving patients with clinically isolated syndrome (CIS), relapsing-remitting MS (RRMS), secondary progressive MS (SPMS), and controls.
  • Corneal confocal microscopy (CCM) was used to quantify total, mature, and immature corneal IC density and nearest nerve distance.
  • Data analysis compared these metrics between patient groups and controls.

Main Results:

  • Total IC density was higher in MS, RRMS, and SPMS patients compared to controls.
  • Immature IC density was elevated in MS and RRMS patients.
  • Immature IC near-nerve distance was significantly greater in all MS subtypes compared to controls.
  • Immature IC density correlated with cognitive function (Symbol Digit Modalities Test).
  • Near-nerve distance correlated with disability (Expanded Disability Status Scale).

Conclusions:

  • In vivo CCM shows increased immature IC density and near-nerve distance in MS patients.
  • These findings suggest CCM may be a useful tool for assessing neuroimmune alterations in MS.
  • Further research is warranted to validate CCM as an imaging biomarker for MS disease status.
Abstract

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