PMID- 23132797 OWN - NLM STAT- MEDLINE DCOM- 20130214 LR - 20121204 IS - 1552-5783 (Electronic) IS - 0146-0404 (Linking) VI - 53 IP - 13 DP - 2012 Dec 3 TI - Elevated levels of monocyte chemoattractant protein-1 in the aqueous humor after phacoemulsification. PG - 7951-60 LID - 10.1167/iovs.12-10231 [doi] AB - PURPOSE: To elucidate the impact of phacoemulsification on aqueous monocyte chemoattractant protein-1 (MCP-1) levels, and identify its cell origin. METHODS: For clinical study, aqueous humor samples were collected before and after surgery (17.0 +/- 4.0 months postoperatively) from 21 cataract cases that underwent phacoemulsification and intraocular lens (IOL) implantation. Aqueous MCP-1 levels were determined using a multiplex immunoassay. For animal experiments, rabbits underwent phacoemulsification (+/- IOL). Aqueous humor samples were collected from nonoperated eyes and operated eyes, and immunoassays were performed. Eyes were analyzed by reverse transcription-polymerase chain reaction and immunohistochemical studies. RESULTS: In the clinical study, mean (+/- SD) aqueous MCP-1 levels were higher postoperatively (1773.5 +/- 321.2 pg/mL) than preoperatively (796.9 +/- 211.3 pg/mL; P < 0.0001). In animal experiments, mean aqueous MCP-1 levels (pg/mL) were higher in postoperative eyes on day 30 (207.1 +/- 62.9) than in nonoperated eyes (31.2 +/- 12.5; P = 0.018). IOL implantation did not affect the changes in MCP-1 levels. After phacoemulsification, MCP-1 mRNA expression was increased in the cornea, iris, ciliary body, and capsular bag. Expression of MCP-1 mRNA in the capsular bag, but not the other tissues, increased from day 30 to 90. Immunohistochemical studies showed positive immunoreactivity for MCP-1 in cells of the posterior capsule after phacoemulsification. CONCLUSIONS: aqueous MCP-1 levels were elevated in both human and animal eyes after phacoemulsification. Proliferated Lens epithelial cells on the capsule might be the major cell origin for prolonged MCP-1 production after phacoemulsification. (http://www.umin.ac.jp/ number, UMIN000005788.). FAU - Kawai, Motofumi AU - Kawai M AD - Department of Ophthalmology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan. FAU - Inoue, Toshihiro AU - Inoue T FAU - Inatani, Masaru AU - Inatani M FAU - Tsuboi, Naoko AU - Tsuboi N FAU - Shobayashi, Kohei AU - Shobayashi K FAU - Matsukawa, Akihiro AU - Matsukawa A FAU - Yoshida, Akitoshi AU - Yoshida A FAU - Tanihara, Hidenobu AU - Tanihara H LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20121203 PL - United States TA - Invest Ophthalmol Vis Sci JT - Investigative ophthalmology & visual science JID - 7703701 RN - 0 (Chemokine CCL2) RN - 0 (Interleukin-8) RN - 0 (Platelet-Derived Growth Factor) RN - 0 (RNA, Messenger) RN - 0 (Tumor Necrosis Factor-alpha) RN - 0 (VEGFA protein, human) RN - 0 (Vascular Endothelial Growth Factor A) RN - 0 (platelet-derived growth factor A) SB - IM MH - Aged MH - Aged, 80 and over MH - Animals MH - Aqueous Humor/*metabolism MH - Cells, Cultured MH - Chemokine CCL2/genetics/*metabolism MH - Ciliary Body/metabolism MH - Cornea/metabolism MH - Enzyme-Linked Immunosorbent Assay MH - Epithelial Cells/metabolism MH - Female MH - Humans MH - Interleukin-8/metabolism MH - Iris/metabolism MH - Lens Capsule, Crystalline/metabolism MH - *Lens Implantation, Intraocular MH - Lens, Crystalline/cytology MH - Male MH - Middle Aged MH - *Phacoemulsification MH - Platelet-Derived Growth Factor/metabolism MH - Postoperative Period MH - RNA, Messenger/metabolism MH - Rabbits MH - Reverse Transcriptase Polymerase Chain Reaction MH - Tumor Necrosis Factor-alpha/metabolism MH - Vascular Endothelial Growth Factor A/metabolism EDAT- 2012/11/08 06:00 MHDA- 2013/02/15 06:00 CRDT- 2012/11/08 06:00 PHST- 2012/11/08 06:00 [entrez] PHST- 2012/11/08 06:00 [pubmed] PHST- 2013/02/15 06:00 [medline] AID - iovs.12-10231 [pii] AID - 10.1167/iovs.12-10231 [doi] PST - epublish SO - Invest Ophthalmol Vis Sci. 2012 Dec 3;53(13):7951-60. doi: 10.1167/iovs.12-10231.