Nick Di Girolamo

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Normal bronchoalveolar lavage fluid (BALF) contains mitogenic activity for fibroblasts and type 2 pneumocytes. A number of growth factors that might contribute to this activity have been identified in BALF. We found that a molecule or molecules able to bind to epidermal growth factor (EGF) receptors on mouse lung fibroblasts were present in normal mouse(More)
Pterygia are common ocular surface lesions thought to originate from limbal stem cells altered by chronic UV exposure. Traditionally regarded as a degenerative condition, pterygia also display tumor-like features, such as a propensity to invade normal tissue and high recurrence rates following resection, and may coexist with secondary premalignant lesions.(More)
The cornea, the most anterior segment of the eye, provides us with exquisite vision. Unlike other vital tissues, it is poorly protected from the environment and is thus reliant on a self-renewal program to preserve integrity. This function is reserved for corneal epithelial stem cells located in the basal layer of the limbus, a narrow transition zone that(More)
Biological effects of nerve growth factor (NGF) are mediated through receptors known as nerve growth factor receptors (NGFR), which include p75 and TrkA. This study was initiated after identifying NGFR as an up-regulated gene in the limbus by cDNA microarray analysis and we postulate that its expression may be indicative of a stem/progenitor cell phenotype.(More)
Scleritis is a severe and destructive inflammatory eye disease characterized by extensive extracellular matrix degradation. As in rheumatoid arthritis (RA), tissue destruction in scleritis may be mediated in part by matrix metalloproteinases such as collagenase (MMP-1) and stromelysin (MMP-3) which are normally kept in balance by endogenous inhibitors, such(More)
Ultraviolet radiation (UVR) can induce DNA damage and regulate the expression of factors important for tumour growth and metastasis, including matrix metalloproteinases (MMPs). Epidemiological studies suggest that chronic UVR exposure, especially during early adulthood, may be a risk factor in patients with choroidal melanoma. However, the effects of(More)
Aim: To determine the expression and distribution of matrix metalloproteinases (MMPs) and their inhibitors (TIMPs) in the normal human iris and ciliary body. Methods: Seven postmortem human eyes were fixed with formalin. The iris and ciliary body were dissected out and embedded in paraffin. The expression of MMPs -1, 2, 3, and 9, and TIMPs 1–4 in the iris(More)
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