Proteomics of Aqueous Humor as a Source of Disease Biomarkers in Retinoblastoma.

Int J Mol Sci

Department of Pediatric Hematology/Oncology and Cell and Gene Therapy, IRCCS, Ospedale Pediatrico Bambino Gesù, Piazza di Sant' Onofrio 4, 00165 Rome, Italy.

Published: November 2022


Category Ranking

98%

Total Visits

921

Avg Visit Duration

2 minutes

Citations

20

Article Abstract

Aqueous humor (AH) can be easily and safely used to evaluate disease-specific biomarkers in ocular disease. The aim of this study was to identify specific proteins biomarkers in the AH of retinoblastoma (RB) patients at various stages of the disease. We analyzed the proteome of 53 AH samples using high-resolution mass spectrometry. We grouped the samples according to active vitreous seeding (Group 1), active aqueous seeding (Group 2), naive RB (group 3), inactive RB (group 4), and congenital cataracts as the control (Group 5). We found a total of 889 proteins in all samples. Comparative parametric analyses among the different groups revealed three additional proteins expressed in the RB groups that were not expressed in the control group. These were histone H2B type 2-E (HISTH2B2E), InaD-like protein (PATJ), and ubiquitin conjugating enzyme E2 V1 (UBE2V1). Upon processing the data of our study with the OpenTarget Tool software, we found that glyceraldehyde 3-phosphate dehydrogenase (GAPDH) and CD44 were more highly expressed in the RB groups. Our results provide a proteome database regarding AH related to RB disease that may be used as a source of biomarkers. Further prospective studies should validate our finding in a large cohort of RB patients.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9659039PMC
http://dx.doi.org/10.3390/ijms232113458DOI Listing

Publication Analysis

Top Keywords

aqueous humor
8
biomarkers retinoblastoma
8
seeding group
8
control group
8
expressed groups
8
group
6
proteomics aqueous
4
humor source
4
disease
4
source disease
4

Similar Publications

Candidate Cytokine Biomarkers for the Diagnosis of Ocular- and Neurosyphilis.

Ocul Immunol Inflamm

September 2025

Division of Ophthalmology, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa.

Purpose: To describe differences in the expression of selected host biomarkers, by analysing the aqueous humour (AH), cerebrospinal fluid (CSF) and serum of patients with ocular syphilis, both with and without neurosyphilis and HIV infection, to support the diagnosis of ocular syphilis.

Methods: A prospective observational descriptive study was conducted at Tygerberg Academic Hospital in Cape Town, South Africa, from February 1, 2018, to January 31, 2021. The study included all patients aged 18 years or older who presented to the eye clinic with ocular syphilis, provided they had a positive serum Treponema pallidum antibodies (TPA) test, an RPR titre of ≥ 8 and confirmed ocular inflammation.

View Article and Find Full Text PDF

Background: The bleb-forming surgical spectrum in open-angle glaucoma has recently been expanded by novel surgical approaches. Through a medical device implantation (Xen Gel Stent (XGI) or Preserflo Microshunt (PMI)), these procedures aim at more standardised aqueous humour shunting and an intra- and postoperative risk reduction. Postoperatively, however, XEN, PMI and trabeculectomy share their dependence on the proper function of the filtration bleb.

View Article and Find Full Text PDF

Unlabelled: Abnormal development of the intricate trabecular meshwork (TM) or Schlemm's canal (SC) structures in the eye can result in reduced aqueous humor fluid drainage and elevated intraocular pressure. If left untreated, these processes can lead to retinal ganglion cell loss, damage to the optic nerve, and infant-onset vision loss, termed congenital glaucoma. To identify gene expression important for development of these specialized aqueous humor outflow pathway (AHOP) structures, single-cell RNA sequencing was performed on rat AHOP tissues during three major periods of growth.

View Article and Find Full Text PDF

Purpose: To investigate the association between preoperative aqueous humor (AqH) cytokines and mid-term endothelial cell density (ECD) after Descemet stripping automated endothelial keratoplasty (DSAEK).

Methods: This prospective study included 80 eyes: 47 eyes undergoing DSAEK and 33 cataract surgery eyes as controls. AqH samples were collected at the beginning of surgery.

View Article and Find Full Text PDF

Complexation-based spectrofluorimetric method for besifloxacin determination: Combined experimental and computational insights.

Anal Chim Acta

October 2025

Analytical Chemistry Department, Faculty of Pharmacy, Minia University, Minia, 61511, Egypt; Analytical Chemistry Department, Faculty of Pharmacy, Minia National University, New Minia, 61511, Egypt. Electronic address:

Fluorescence-based analytical methods offer high sensitivity, cost-effectiveness, and simplicity for pharmaceutical analysis. Besifloxacin hydrochloride (Bfln.HCl), a fluoroquinolone antibiotic used to treat eye infections, exhibits native fluorescence that can be enhanced in acidic media.

View Article and Find Full Text PDF