Author(s): Cargnoni A, Ressel L, Rossi D, Poli A, Arienti D, et al.
Background and aims: We have demonstrated recently that transplantation of placental membrane-derived cells reduces bleomycin-induced lung fibrosis in mice, despite a limited presence of transplanted cells in host lungs. Because placenta-derived cells are known to release factors with potential immunomodulatory and trophic activities, we hypothesized that transplanted cells may promote lung tissue repair via paracrine-acting molecules. To test this hypothesis, we examined whether administration of conditioned medium (CM) generated from human amniotic mesenchymal tissue cells (AMTC) was able to reduce lung fibrosis in this same animal model.
Methods: Bleomycin-challenged mice were either treated with AMTC-CM or control medium, or were left untreated (Bleo group). After 9 and 14 days, the distribution and severity of lung fibrosis were assessed histologically with a scoring system. Collagen deposition was also evaluated by quantitative image analysis.
Results: At day 14, lung fibrosis scores in AMTC-CM-treated mice were significantly lower (P < 0.05) compared with mice of the Bleo group, in terms of fibrosis distribution [1.0 (interquartile range, IQR 0.9) versus 3.0 (IQR 1.8)], fibroblast proliferation [0.8 (IQR 0.4) versus 1.6 (IQR 1.0)], collagen deposition [1.4 (IQR 0.5) versus 2.0 (IQR 1.2)] and alveolar obliteration [2.3 (IQR 0.8) versus 3.2 (IQR 0.5)]. No differences were observed between mice of the Bleo group and mice treated with control medium. Quantitative analysis of collagen deposition confirmed these findings. Importantly, AMTC-CM treatment significantly reduced the fibrosis progression between the two observation time-points.
Conclusions: This pilot study supports the notion that AMTC exert anti-fibrotic effects through release of yet unknown soluble factors.
Referred From: https://www.ncbi.nlm.nih.gov/pubmed/21954836
Author(s): Wynn TA, Ramalingam TR
Author(s): Sabry MM, Elkalawy SAE, Abo-Elnour RKE, Abd-El-Maksod DF
Author(s): Leung VYL, Aladin DMK, Lv F, Tam V, Sun Y, et al.
Author(s): Qi Y, Jiang D, Sindrilaru A, Stegemann A, Schatz S, et al.
Author(s): Kishore R, Verma SK, Mackie AR, Vaughan EE, Abramova TV, et al.
Author(s): Mias C, Lairez O, Trouche E, Roncalli J, Calise D, et al.
Author(s): Hemphill C, Stavoe K, Khalpey Z
Author(s): Zagoura DS, Roubelakis MG, Bitsika V, Trohatou O, Pappa KI, et al.
Author(s): Zhang DG, Jiang MY, Miao DS
Author(s): Fujimoto KL, Miki T, Liu LJ, Hashizume R, Strom SC, et al.
Author(s): Sedrakyan S, Da Sacco S, Milanesi A, Shiri L, Petrosyan A, et al.
Author(s): Garcia O, Carraro G, Turcatel G, Hall M, Sedrakyan S, et al.
Author(s): Sun D, Bu L, Liu C, Yin Z, Zhou X, et al.
Author(s): Wen ST, Chen W, Chen HL, Lai CW, Yen CC, et al.
Author(s): Baulier E, Favreau F, Le Corf A, Jayle C, Schneider F, et al.
Author(s): Lee WY, Wei HJ, Lin WW, Yeh YC, Hwang SM, et al.
Author(s): Grisafi D, Pozzobon M, Dedja A, Vanzo V, Tomanin R, et al.
Author(s): Moodley Y, Atienza D, Manuelpillai U, Samuel CS, Tchongue J, et al.
Author(s): Cargnoni A, Piccinelli EC, Ressel L, Rossi D, Magatti M, et al.
Author(s): Wynn TA
Author(s): Klingberg F, Hinz B, White ES
Author(s): Yoon BS, Moon JH, Jun EK, Kim J, Maeng I, et al.
Author(s): Vosdoganes P, Wallace EM, Chan ST, Acharya R, Moss TJM, et al.
Author(s): Hodge A, Lourensz D, Vaghjiani V, Nguyen H, Tchongue J, et al.
Author(s): Jun EK, Zhang Q, Yoon BS, Moon JH, Lee G, et al.
Author(s): Fong CY, Tam K, Cheyyatraivendran S, Gan SU, Gauthaman K, et al.
Author(s): Arno AI, Amini-Nik S, Blit PH, Al-Shebab M, Belo C, et al.
Author(s): Jeon YK, Jang YH, Yoo DR, Kim SN, Lee SK, et al.
Author(s): Kim WS, Park BS, Sung JH, Yang JM, Park SB, et al.
Author(s): Jung H, Kim HH, Lee DH, Hwang YS, Yang HC, et al.
Author(s): Ding J, Ma Z, Shankowsky HA, Medina A, Tredget EE
Author(s): Lee SH, Jin SY, Song JS, Seo KK, Cho KH
Author(s): Onishi S, Sumiyoshi H, Kitamura S, Nagaya N
Author(s): Salazar KD, Lankford SM, Brody AR
Author(s): Cho JW, Kang MC, Lee KS
Author(s): Leung A, Crombleholme TM, Keswani SG
Author(s): Hu MS, Rennert RC, McArdle A, Chung MT, Walmsley GG, et al.
Author(s): Hosper NA, Bank RA, van den Berg PP
Author(s): Przybyt E,Krenning G, Brinker MGL, Harmsen MC
Author(s): Masum MM, Boersema M, Bank RA
Author(s): Skardal A, Mack D, Kapetanovic E, Atala A, Jackson JD, et al.
Author(s): Shi HX, Lin C, Lin BB, Wang ZG, Zhang HY, et al.
Author(s): Kinoshita T, Ishikawa Y, Arita M, Akishima-Fukasawa Y, Fujita K, et al.
Author(s): Desai VD, Hsia HC, Schwatzbauer JE
Author(s): Murad S, Grove D, Lindberg KA, Reynolds G, Sivarajah A, et al.
Author(s): Pinnell SR
Author(s): Tsutsumi K, Fujikawa H, Kaijkawa T, Takedachi M, Yamamoto T, et al.
Author(s): Myllyharju J
Author(s): Ananthanarayanan VS
Author(s): Li Y, Schellhorn HE
Author(s): van der Slot AJ, Zuurmond A, Bardoel AFJ, Wijmenga C, Pruijs HEH, et al.
Author(s): Pornprasertsuk S, Duarte WR, Mochida Y, Yamauchi M
Author(s): van der Slot AJ, van Dura EA, Attema J, Blauw B, DeGroot J, et al.
Author(s): Mast BA, Diegelmann RF, Krummel TM, Cohen IK
Author(s): Longaker MT, Whitby DJ, Ferguson MWJ, Lorenz HP, Harrison MR, et al.