S M Petrovic, B Simovic Markovic, I Jovanovic, A Jevtovic, J Pantic, G D Radosavljevic
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引用次数: 0
Abstract
Background and study aims: Leptin, Galectin-1 and Galectin-3 are essential players in tumorigenesis, angiogenesis, and metastasis, but their lymphangiogenic role is unclear. Here, the associations of leptin, Galectin-1 and Galectin-3 with markers of lymphangiogenesis were evaluated in colorectal cancer (CRC).
Patients and methods: A total of 120 patients with CRC were included in the study. The expressions of leptin, Galectin-1, Galectin-3, and vascular endothelial growth factor- C (VEGF-C) were analyzed in CRC tissue and compared with lymphatic vessel density (LVD). Also, the concentrations of Galectin-1 and Galectin-3 were determined in the sera of CRC patients (n=38).
Results: LVD positively correlated with the intensity of leptin or Galectin-1 expression (as defined by intensity score, IS) in tissues. Although there was no significant association between tissue expression of Galectin-3 and LVD, serum Galectin-3 concentrations were markedly decreased in patients with high LVD. The positive correlation was observed between intensity of VEGF-C and leptin expressions. No significant relationship was found between VEGF-C and Galectin-1 expression, while the intensity of VEGF-C expression positively correlated with Galectin-3 expression in tumor tissue. Further, high leptin expression, determined by a total score (sum of percentage score (PS) and IS) > 4, was related to regional lymph node metastasis and TNM stages, indicating a more aggressive CRC phenotype.
Conclusions: The results suggest that leptin and Galectin-1 are involved in the formation of new lymphatic vessels in tumor, either dependently or independently of VEGF-C. It seems that high leptin expression reflects regional metastases and progression of CRC.
期刊介绍:
The Journal Acta Gastro-Enterologica Belgica principally publishes peer-reviewed original manuscripts, reviews, letters to editors, book reviews and guidelines in the field of clinical Gastroenterology and Hepatology, including digestive oncology, digestive pathology, as well as nutrition. Pure animal or in vitro work will not be considered for publication in the Journal. Translational research papers (including sections of animal or in vitro work) are considered by the Journal if they have a clear relationship to or relevance for clinical hepato-gastroenterology (screening, disease mechanisms and/or new therapies). Case reports and clinical images will be accepted if they represent an important contribution to the description, the pathogenesis or the treatment of a specific gastroenterology or liver problem. The language of the Journal is English. Papers from any country will be considered for publication. Manuscripts submitted to the Journal should not have been published previously (in English or any other language), nor should they be under consideration for publication elsewhere. Unsolicited papers are peer-reviewed before it is decided whether they should be accepted, rejected, or returned for revision. Manuscripts that do not meet the presentation criteria (as indicated below) will be returned to the authors. Papers that go too far beyond the scope of the journal will be also returned to the authors by the editorial board generally within 2 weeks. The Journal reserves the right to edit the language of papers accepted for publication for clarity and correctness, and to make formal changes to ensure compliance with AGEB’s style. Authors have the opportunity to review such changes in the proofs.