1. Rot A, von Andrian UH. Chemokines in innate and adaptive host defense: basic chemokines grammar for immune cells. Annu Rev Immunol. 2004. 22:891–928.
2. Oda Y, Yamamoto H, Tamiya S, et al. CXCR4 and VEGF expression in the primary site and the metastatic site of human osteosarcoma: analysis within a group of patients, all of whom developed lung metastasis. Mod Pathol. 2006. 19:738–745.
3. Chinni SR, Yamamoto H, Dong Z, Sabbota A, Bonfil RD, Cher ML. CXCL12/CXCR4 transactivates HER2 in lipid rafts of prostate cancer cells and promotes growth of metastatic deposits in bone. Mol Cancer Res. 2008. 6:446–457.
4. Müller A, Homey B, Soto H, et al. Involvement of chemokine receptors in breast cancer metastasis. Nature. 2001. 410:50–56.
5. Spano JP, Andre F, Morat L, et al. Chemokine receptor CXCR4 and early-stage non-small cell lung cancer: pattern of expression and correlation with outcome. Ann Oncol. 2004. 15:613–617.
6. Scala S, Ottaiano A, Ascierto PA, et al. Expression of CXCR4 predicts poor prognosis in patients with malignant melanoma. Clin Cancer Res. 2005. 11:1835–1841.
7. Koishi K, Yoshikawa R, Tsujimura T, et al. Persistent CXCR4 expression after preoperative chemoradiotherapy predicts early recurrence and poor prognosis in esophageal cancer. World J Gastroenterol. 2006. 12:7585–7590.
8. Jiang YP, Wu XH, Shi B, Wu WX, Yin GR. Expression of chemokine CXCL12 and its receptor CXCR4 in human epithelial ovarian cancer: an independent prognostic factor for tumor progression. Gynecol Oncol. 2006. 103:226–233.
9. Azenshtein E, Luboshits G, Shina S, et al. The CC chemokine RANTES in breast carcinoma progression: regulation of expression and potential mechanisms of promalignant activity. Cancer Res. 2002. 62:1093–1102.
10. Fan TM, Barger AM, Fredrickson RL, Fitzsimmons D, Garrett LD. Investigating CXCR4 expression in canine appendicular osteosarcoma. J Vet Intern Med. 2008. 22:602–608.
11. Laverdiere C, Hoang BH, Yang R, et al. Messenger RNA expression levels of CXCR4 correlate with metastatic behavior and outcome in patients with osteosarcoma. Clin Cancer Res. 2005. 11:2561–2567.
12. Perissinotto E, Cavalloni G, Leone F, et al. Involvement of chemokine receptor 4/stromal cell-derived factor 1 system during osteosarcoma tumor progression. Clin Cancer Res. 2005. 11:490–497.
13. Unni KK, Dahlin DC. Grading of bone tumors. Semin Diagn Pathol. 1984. 1:165–172.
14. Paoletti S, Borzi RM, Mazzetti I, et al. Human osteosarcoma cells release matrix degrading enzymes in response to chemokine activation. Int J Oncol. 2001. 18:11–16.
15. Libura J, Drukala J, Majka M, et al. CXCR4-SDF-1 signaling is active in rhabdomyosarcoma cells and regulates locomotion, chemotaxis, and adhesion. Blood. 2002. 100:2597–2606.
16. Murakami T, Maki W, Cardones AR, et al. Expression of CXC chemokine receptor-4 enhances the pulmonary metastatic potential of murine B16 melanoma cells. Cancer Res. 2002. 62:7328–7334.
17. Smith MC, Luker KE, Garbow JR, et al. CXCR4 regulates growth of both primary and metastatic breast cancer. Cancer Res. 2004. 64:8604–8612.
18. Taichman RS, Cooper C, Keller ET, Pienta KJ, Taichman NS, McCauley LK. Use of the stromal cell-derived factor-1/CXCR4 pathway in prostate cancer metastasis to bone. Cancer Res. 2002. 62:1832–1837.
19. Bai S, Wang D, Klein MJ, Siegal GP. Characterization of CXCR4 expression in chondrosarcoma of bone. Arch Pathol Lab Med. 2011. 135:753–758.
20. de Nigris F, Rossiello R, Schiano C, et al. Deletion of Yin Yang 1 protein in osteosarcoma cells on cell invasion and CXCR4/angiogenesis and metastasis. Cancer Res. 2008. 68:1797–1808.
21. Bachelder RE, Wendt MA, Mercurio AM. Vascular endothelial growth factor promotes breast carcinoma invasion in an autocrine manner by regulating the chemokine receptor CXCR4. Cancer Res. 2002. 62:7203–7206.
22. Balkwill F. The significance of cancer cell expression of the chemokine receptor CXCR4. Semin Cancer Biol. 2004. 14:171–179.
23. Gobert M, Treilleux I, Bendriss-Vermare N, et al. Regulatory T cells recruited through CCL22/CCR4 are selectively activated in lymphoid infiltrates surrounding primary breast tumors and lead to an adverse clinical outcome. Cancer Res. 2009. 69:2000–2009.
24. von Luettichau I, Nathrath M, Burdach S, Huss R, Segerer S, Nelson PJ. Mononuclear infiltrates in osteosarcoma and chemokine receptor expression. Clin Cancer Res. 2006. 12:5253–5254.
25. Takenaga M, Tamamura H, Hiramatsu K, et al. A single treatment with microcapsules containing a CXCR4 antagonist suppresses pulmonary metastasis of murine melanoma. Biochem Biophys Res Commun. 2004. 320:226–232.
26. Kim SY, Lee CH, Midura BV, et al. Inhibition of the CXCR4/CXCL12 chemokine pathway reduces the development of murine pulmonary metastases. Clin Exp Metastasis. 2008. 25:201–211.