https://www.selleckchem.com/products/cytidine-5-triphosphate-disodium-salt.html To confirm the ocular tropism of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) by evaluating the expression of viral entry factors in human ocular tissues using immunohistochemistry. Fresh donor corneas and primary explant cultures of corneal, limbal, and conjunctival epithelial cells were evaluated for the expression of viral entry factors. Using immunohistochemistry, the samples were tested for the expression of angiotension-converting enzyme 2 (ACE2), dendritic cell-specific intracellular adhesion molecule 3-grabbing nonintegrin (DC-SIGN), DC-SIGN-related protein (DC-SIGNR), and transmembrane serine protease 2 (TMPRSS2). In total, 5 donor corneas were evaluated for the expression of viral entry factors. In all specimens, both ACE2 and TMPRSS2 were expressed throughout the surface epithelium (corneal, limbal, and conjunctival) and corneal endothelium. In corneal stromal cells, ACE2 was sporadically expressed, whereas TMPRSS2 was absent. DC-SIGN/DC-SIGNR expression varied between donor sal transplantation cannot be ruled out, given the presence of ACE2 in corneal epithelium and endothelium. Cultured corneal, limbal, and conjunctival epithelial cells mimic the expression of viral entry factors in fresh donor tissue and may be useful for future in vitro SARS-CoV-2 infection studies. A consecutive case series of patients with dupilumab-associated ocular surface disease (DAOSD) that describes common ocular symptoms and signs, proposes a symptom disease severity grading system, and describes treatment strategies of DAOSD patients was evaluated. A retrospective chart review of patients with concomitant dupilumab-treated atopic dermatitis and DAOSD with ophthalmic evaluation between January 2014 and May 2019 was conducted. Twenty-nine patients (mean age 46 years, M/F 12/17) with 57 ophthalmic exams were identified. The most common ocular symptoms included irritation/pain (n = 28