scholarly journals Effect of Chemokine (C-C Motif) Ligand 7 (CCL7) and Its Receptor (CCR2) Expression on Colorectal Cancer Behaviors

2019 ◽  
Vol 20 (3) ◽  
pp. 686 ◽  
Author(s):  
Ewa Kurzejamska ◽  
Mariusz Sacharczuk ◽  
Natalia Landázuri ◽  
Oksana Kovtonyuk ◽  
Marzena Łazarczyk ◽  
...  

Colorectal cancer is the source of one of the most common cancer-related deaths worldwide, where the main cause of patient mortality remains metastasis. The aim of this study was to determine the role of CCL7 (chemokine (C-C motif) ligand 7) in tumor progression and finding whether it could predict survival of colorectal cancer patients. Initially, our study focused on the crosstalk between mesenchymal stem cells (MSCs) and CT26 colon carcinoma cells and resulted in identifying CCL7 as a chemokine upregulated in CT26 colon cancer cells cocultured with MSCs, compared with CT26 in monoculture in vitro. Moreover, we showed that MSCs enhance CT26 tumor cell proliferation and migration. We analyzed the effect of CCL7 overexpression on tumor progression in a murine CT26 model, where cells overexpressing CCL7 accelerated the early phase of tumor growth and caused higher lung metastasis rates compared with control mice. Microarray analysis revealed that tumors overexpressing CCL7 had lower expression of immunoglobulins produced by B lymphocytes. Additionally, using Jh mutant mice, we confirmed that in the CT26 model, CCL7 has an immunoglobulin-, and thereby, B-cell-dependent effect on metastasis formation. Finally, higher expression of CCL7 receptor CCR2 (C-C chemokine receptor type 2) was associated with shorter overall survival of colorectal cancer patients. Altogether, we showed that CCL7 is essentially involved in the progression of colorectal cancer in a CT26 mouse model and that the expression of its receptor CCR2 could be related to a different outcome pattern of patients with colorectal carcinoma.

2014 ◽  
Vol 29 (1) ◽  
pp. e30-e39 ◽  
Author(s):  
Ariel Zwenger ◽  
Martin Rabassa ◽  
Sandra Demichelis ◽  
Gabriel Grossman ◽  
Amada Segal-Eiras ◽  
...  

Aim Colorectal cancer (CRC) is one of the most prevalent malignancies in Argentina with 11,043 new cases and 6,596 deaths estimated to have occurred in 2008. The present study was developed to clarify the differential expression of MUC1, MUC2, sLex, and sLea in colorectal cancer patients and their relationship with survival and clinical and histological features. Methods Ninety primary tumor samples and 43 metastatic lymph nodes from CRC patients were studied; follow-up was documented. Twenty-six adenoma and 68 histological normal mucosa specimens were analyzed. An immunohistochemical approach was applied and statistical analysis was performed. Results In tumor samples, MUC1, sLea, and sLex were highly expressed (94%, 67%, and 91%, respectively); also, we found a significantly increased expression of the 3 antigens in primary tumors and metastatic lymph nodes compared with normal mucosa and adenomas. MUC2 was expressed in 52% of both normal mucosa and CRC samples; this reactivity significantly decreased in metastatic lymph nodes (p<0.05). A multiple comparison analysis showed that MUC1 and sLex discriminated among 3 groups: normal, adenoma, and CRC tissues. The increase of sLex expression showed an association with recurrence, and survival analysis showed that a high sLex staining was significantly associated with a poor survival. By multivariate analysis MUC1 inmunoreactivity correlated positively and significantly with tumor size, while MUC2 expression showed the opposite correlation. Conclusions The correlation of sLex overexpression in primary tumors and metastatic lymph nodes, the discrimination among the normal, adenoma, and CRC groups based on sLex expression, as well as its association with recurrence and survival, all suggest a prognostic role of sLex in Argentinian CRC patients.


2015 ◽  
Vol 26 ◽  
pp. vi51
Author(s):  
R. Giampieri ◽  
M. Del Prete ◽  
L. Faloppi ◽  
M. Bianconi ◽  
K. Andrikou ◽  
...  

2018 ◽  
Vol 29 ◽  
pp. viii197
Author(s):  
C. Lisanti ◽  
D. Basile ◽  
S.K. Garattini ◽  
G. Pelizzari ◽  
A. Parnofiello ◽  
...  

2016 ◽  
Vol 22 (11) ◽  
pp. 2812-2824 ◽  
Author(s):  
Clara Lemos ◽  
Markus S. Hardt ◽  
Manisha Juneja ◽  
Cynthia Voss ◽  
Susann Förster ◽  
...  

2014 ◽  
Vol 35 (12) ◽  
pp. 2723-2730 ◽  
Author(s):  
Mulong Du ◽  
Sang Liu ◽  
Dongying Gu ◽  
Qiaoyan Wang ◽  
Lingjun Zhu ◽  
...  

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