The lacrimal gland (LG) is a tubuloacinar exocrine gland composed of acinar, ductal, and myoepithelial cells. Three-dimensional distribution of acinar lobules, ducts, and myoepithelial cells is necessary for the effective functioning of the organ. LG is the main organ of immune surveillance of the ocular surface system. The embryogenesis of the gland is regulated by the interaction of genetic mechanisms, internal epigenetic (enzyme systems, hormones) and exogenous factors. There is no doubt that there is a clear genetic program for the implementation of the complex process of embryonic development. The mechanisms regulating LG organogenesis initiate the work of a huge number of structural oncogenes, transcription and growth factors, etc. Studying the expression and selective activity of regulatory genes during organ development, their participation in the differentiation of different cell types is a current trend at the nexus of clinical genetics, molecular biology, embryology and immunocytochemistry. Due to its relatively simple structure and accessibility, human LG is a suitable object for potential application in regenerative medicine. Development of a universal protocol for obtaining functional differentiated secretory epithelium of LG capable of expressing tissue-specific markers is an urgent task. Determining the nature and origin of stem cells and progenitor cells will allow the isolation and multiplication of these cells in culture. After obtaining a functionally active culture of LG cells, it is possible to create a model of autoimmune diseases.
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http://dx.doi.org/10.17116/oftalma2024140022158 | DOI Listing |
Ophthalmic Plast Reconstr Surg
January 2025
Brighton and Sussex Medical School, University of Sussex, Brighton, United Kingdom.
Purpose: This study reviews all reported cases of lacrimal gland chronic lymphocytic leukemia (CLL) to identify patterns in clinical presentation, diagnosis, and management to aid in early recognition and treatment of this uncommon occurrence.
Methods: A comprehensive search of medical literature databases was performed to identify studies reporting lacrimal sac involvement in CLL from 1970 to 2024. Data were extracted regarding demographics, symptoms, diagnostic methods, treatment, and outcomes.
BMC Ophthalmol
January 2025
Department of Ophthalmology, Wuhu Eye Hospital, 378 Santan Road, Yijiang District, Anhui Province, Wuhu, 241002, China.
Background: Epiphora and secondary ocular surface damage are increasingly impairing the quality of life of people, particularly elderly women. We aimed to investigate the changes in tear cytokine and lactoferrin levels in postmenopausal women with primary acquired nasolacrimal duct obstruction (PANDO) complicated with obstructed meibomian gland dysfunction (OMGD) and preliminary explore the pathological mechanisms of OMGD in patients with PANDO.
Methods: The prospective study involved 43 and 41 postmenopausal women with and without PANDO, respectively.
Jpn J Ophthalmol
January 2025
Department of Ophthalmology, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, 565-0871, Osaka, Japan.
Purpose: To compare the postoperative outcomes of corticosteroid therapy following biopsy with those following debulking surgery in patients with immunoglobulin G4 (IgG4)-related ophthalmic disease (IgG4-ROD).
Study Design: Retrospective comparative study.
Methods: Fifteen patients diagnosed with IgG4-ROD (5 unilateral, 10 bilateral) were retrospectively analyzed.
Iran J Pharm Res
September 2024
Chemical Injuries Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran.
Background: Dry eye disease (DED) is a multifactorial condition characterized by ocular surface inflammation, tear film instability, and corneal epithelial damage. Current treatments often provide temporary relief without addressing the underlying inflammatory mechanisms.
Objectives: This study examined the therapeutic potential of crocin and nobiletin, two naturally derived compounds with well-known antioxidant and anti-inflammatory properties, in a mouse model of DED induced by lacrimal gland excision (LGE).
Surv Ophthalmol
January 2025
Centre for Ocular Regeneration (CORE), L V Prasad Eye Institute, Hyderabad, Telangana, India; Prof. Krothapalli Ravindranath Ophthalmic Research Biorepository, LV Prasad Eye Institute, Hyderabad, Telangana, India. Electronic address:
Extracellular vesicles (EVs), defined as membrane-bound vesicles released from all cells, are being explored for their diagnostic and therapeutic role in dry eye disease (DED). We systematically shortlisted 32 articles on the role of EVs in diagnosing and treating DED. We cover the progress in the last 2 decades on the classification and isolation of EVs and their role in DED.
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