Investigation of the effects of drugs effective on PI3K-AKT signaling pathway in colorectal cancer alone and in combination

Volume: 36 Number: 2 May 19, 2014
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Investigation of the effects of drugs effective on PI3K-AKT signaling pathway in colorectal cancer alone and in combination

Abstract

Abstract

Aim. This study was designed to determine the agent and/or possible agent combinations that may be effective in the treatment of colorectal cancer. For this reason the single and combined antiproliferative effects of NVPBEZ-235, API-1, LY 294002 and PP242 which target PI3K/AKT pathway well known to have an important role in pathophysiological mechanisms of colorectal cancer were investigated. We investigated whether NVPBEZ-235, API-1 and PP242 have antiproliferative effects which have not been studied on this cancer type and also compared the effects with LY294002 known to have antiproliferative effect on colorectal cancer. Method. DLD-1 cell line was used as colorectal cells. Real time cell analysis (xCELLigence system) was used to determine the effects of the agents in colorectal cell proliferation. Results. When the agents were applied alone, PI3K/mTOR dual inhibitor NVP-BEZ had the strongest cytotoxic effect and PI3K inhibitor LY294002 had the lowest cytotoxic effect. None of the combinations were not superior compared to alone applications. Conclusion. This study indicates that when PI3K/AKT pathway is targeted, instead of combined treatment, targeted specific treatment with a single agent having higher affinity and effectiveness would be more appropriate. Also among the agents effecting PI3K/AKT pathway especially, NVP-BEZ for targeted therapy can be alternative to conventional treatments.

Keywords: Colorectal cancer, PI3K/AKT pathway, NVPBEZ-235, API-1, LY 294002, PP242

 

Özet

Amaç. Bu çalışma kolorektal kanser tedavisinde etkili madde ve/veya olası madde kombinasyonlarını belirlemek için tasarlanmıştır. Bu nedenle kolorektal kanserin patofizyolojik mekanizmalarında önemli bir rol oynadığı bilinen PI3K/Akt yolağını hedef alan NVPBEZ-235, API-1, LY 294002 ve PP242’nin tek ve kombinasyon halinde anti-proliferatif etkileri araştırıldı. Daha önce bu kanser tipinde çalışılmayan NVPBEZ-235, API-1 ve PP242’nin anti-proliferatif etkilerinin olup olmadığı araştırıldı. Ayrıca bu etkileri kolorektal kanser üzerinde anti-proliferatif bir etkiye sahip olduğu bilinen LY 294002 ile karşılaştırıldı. Yöntem. DLD-1 hücre hattı kolorektal hücre olarak kullanıldı. Gerçek zamanlı hücre analizi (XCELLigence sistemi) kolorektal hücre çoğalmasında ajanların etkilerini belirlemek için kullanıldı. Bulgular. Maddeler tek başına uygulandığı zaman NVPBEZ-235, dual PI3K/mTOR inhibitörü NVP-BEZ en güçlü sitotoksik etkiye ve PI3K inhibitörü LY294002 en düşük sitotoksisiteye sahipti. Kombinasyonların hiçbiri, tek başına uygulamaları ile karşılaştırıldığında daha üstün değildi. Sonuç. Bu çalışma PI3K/Akt yolağı hedef alındığında, kombine tedavi yerine daha yüksek afinitesi ve etkinliği olan tek bir madde ile hedefe yönelik spesifik tedavinin daha uygun olacağını göstermektedir. Ayrıca özellikle PI3K/Akt yolağını etkileyen maddeler arasında NVP-BEZ hedefe yönelik tedavide geleneksel tedaviler için bir alternatif olabilir.

Anahtar sözcükler: Kolorektal kanser, PI3K/AKT yolağı, NVPBEZ-235, API-1, LY 294002, PP242

Keywords

References

  1. Siegel R, Ward E, Brawley O, Jemal A. Cancer statistics, 2011: The impact of eliminating socioeconomic and racial disparities on premature cancer deaths. CA Cancer J Clin 2011; 61: 212-36.
  2. Kinzler KW, Vogelstein B. Lessons from hereditary colorectal cancer. Cell 1996; 87: 159-70.
  3. Bachman KE, Argani P, Samuels Y. The PIK3CA gene is mutated with high frequency in human breast cancers. Cancer Biol Ther 2004; 3: 772-5.
  4. Hahn WC, Weinberg RA. Rules for making human tumor cells. New Engl J Med 2002; 347: 1593-603.
  5. Garcia-Echeverria C, Sellers WR. Drug discovery approaches targeting the PI3K/Akt pathway in cancer. Oncogene 2008; 27: 5511-26.
  6. Huang XF, Chen JZ. Obesity, the PI3K/Akt signal pathway and colon cancer. Obes Rev 2009; 10: 610-6.
  7. Zhao L, Class I. PI3K in oncogenic cellular transformation. Oncogene 2008; 27: 5486Cantley LC. The phosphoinositide 3-kinase pathway. Science 2002; 296:1655-7. Itoh N, Semba S, Ito M. Phosphorylation of Akt/PKB is required for suppression of cancer cell apoptosis and tumor progression in human colorectal carcinoma. Cancer 2002; 94(12): 3127-34.
  8. Khaleghpour K, Li Y, Banville D, Yu Z, Shen SH. Involvement of the PI 3kinase signaling pathway in progression of colon adenocarcinoma. Carcinogenesis 2004; 25: 241-8.

Details

Primary Language

English

Subjects

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Journal Section

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Publication Date

May 19, 2014

Submission Date

May 19, 2014

Acceptance Date

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Published in Issue

Year 2014 Volume: 36 Number: 2

AMA
1.Kaya Temiz T, Altun A, Turgut N, Balcı E. Investigation of the effects of drugs effective on PI3K-AKT signaling pathway in colorectal cancer alone and in combination. CMJ. 2014;36(2):167-177. doi:10.7197/cmj.v36i2.5000033144

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