NDLI: Manipulation Therapy Prior to Diagnosis Induced Primary Osteosarcoma Metastasis

Content Provider	PubMed Central
Author	Wang, Jir-you Wu, Po-kuei Chen, Paul Chih-hsueh Yen, Chuen-chuan Hung, Giun-yi Chen, Cheng-fong Hung, Shih-chieh Tsai, Shih-fen Liu, Chien-lin Chen, Tain-hsiung Chen, Wei-ming
Editor	Tang, Chih-hsin
Copyright Year	2014
Abstract	Osteosarcoma (OS) patients who suffer manipulation therapy (MT) prior to diagnosis resulted in poor prognosis with increasing metastasis or recurrence rate. The aim of the study is to establish an in vivo model to identify the effects of MT on OS. The enrolled 235 OS patients were followed up in this study. In vivo nude mice model with tibia injection of GFP-labeled human OS cells were randomly allocated into MT(+) that with repeated massage on tumor site twice a week and no treatment as MT(−) group. The five-year survival, metastasis and recurrence rates were recorded in clinical subjects. X-ray plainfilm, micro-PET/CT scan, histopathology, serum metalloproteinase 2 (MMP2), metalloproteinase 9 (MMP9) level and human kinase domain insert receptor (KDR) pattern were assayed in mice model. The results showed that patient with MT decreased 5-year survival and higher recurrence or metastasis rate. Compatible with clinical findings, the decreased body weight (30.5±0.65 g) and an increased tumor volume (8.3±1.18 mm3) in MT(+) mice were observed. The increasing signal intensity over lymph node region of hind limb by micro-PET/CT and the tumor cells were detected in lung and bilateral lymph nodes only in MT(+) group. MMP2 (214±9.8 ng/ml) and MMP9 (25.5±1.81 ng/ml) were higher in MT(+) group than in MT(−) group (165±7.8 ng/ml and 16.9±1.40 ng/ml, individually) as well as KDR expression. Taking clinical observations and in vivo evidence together, MT treatment leads to poor prognosis of primary osteosarcoma; physicians should pay more attention on patients who seek MT before diagnosis.
Related Links	http://dx.doi.org/10.1371/journal.pone.0096571
Starting Page	96571
File Format	PDF
ISSN	19326203
e-ISSN	19326203
Journal	PLoS ONE
Issue Number	5
Volume Number	9
Language	English
Publisher	Public Library of Science
Publisher Date	2014-05-01
Access Restriction	Open
Rights Holder	Public Library of Science
Subject Keyword	Biochemistry, Genetics and Molecular Biology(all) Agricultural and Biological Sciences(all) Medicine(all) Research in Higher Education
Content Type	Text
Resource Type	Article
Subject	Multidisciplinary

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