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Article Open Access

SOCS3 blocks HIF-1α expression to inhibit proliferation and angiogenesis of human small cell lung cancer by downregulating activation of Akt, but not STAT3

  • Authors:
    • Jun Wan
    • Yun Che
    • Ningning Kang
    • Wei Wu
  • View Affiliations / Copyright

    Affiliations: Department of Thoracic Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, P.R. China, Department of Hematology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, P.R. China
    Copyright: © Wan et al. This is an open access article distributed under the terms of Creative Commons Attribution License [CC BY_NC 3.0].
  • Pages: 83-92
    |
    Published online on: February 17, 2015
       https://doi.org/10.3892/mmr.2015.3368
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Abstract

Suppressor of cytokine signaling 3 (SOCS3) is a major negative regulator of signal transducer and activator of transcription 3 (STAT3) during tumorigenesis. Previous studies have indicated that SOCS3 also regulates other signaling pathways, such as PI3K/Akt. However, little is known about the specific molecular mechanisms by which SOCS3 regulates the proliferation and angiogenesis of small cell lung cancer (SCLC) cells. The present study investigated the effect of SOCS3 upregulation on the expression of hypoxia‑inducible factor‑1α (HIF‑1α) and how this affects the proliferation and angiogenesis of SCLC cells. It was investigated whether this interaction is associated with STAT3 or the Akt signaling pathway. The results of the present study revealed that SOCS3 negatively regulates proliferation and angiogenesis of NCI‑H446 cells and that HIF‑1α is required in this process. The results also suggested a suppressive role of SOCS3 in Akt signaling, but not STAT3 signaling to block HIF‑1α expression and a previously unidentified regulatory mechanism for Akt function. In conclusion, the present study suggested that SOCS3 targets the Akt signaling pathway to inhibit HIF‑1α expression and affect the growth and angiogenesis of SCLC cells, and may therefore be considered as a potential novel therapeutic for the treatment of SCLC.
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Copy and paste a formatted citation
Spandidos Publications style
Wan J, Che Y, Kang N and Wu W: SOCS3 blocks HIF-1α expression to inhibit proliferation and angiogenesis of human small cell lung cancer by downregulating activation of Akt, but not STAT3. Mol Med Rep 12: 83-92, 2015.
APA
Wan, J., Che, Y., Kang, N., & Wu, W. (2015). SOCS3 blocks HIF-1α expression to inhibit proliferation and angiogenesis of human small cell lung cancer by downregulating activation of Akt, but not STAT3. Molecular Medicine Reports, 12, 83-92. https://doi.org/10.3892/mmr.2015.3368
MLA
Wan, J., Che, Y., Kang, N., Wu, W."SOCS3 blocks HIF-1α expression to inhibit proliferation and angiogenesis of human small cell lung cancer by downregulating activation of Akt, but not STAT3". Molecular Medicine Reports 12.1 (2015): 83-92.
Chicago
Wan, J., Che, Y., Kang, N., Wu, W."SOCS3 blocks HIF-1α expression to inhibit proliferation and angiogenesis of human small cell lung cancer by downregulating activation of Akt, but not STAT3". Molecular Medicine Reports 12, no. 1 (2015): 83-92. https://doi.org/10.3892/mmr.2015.3368
Copy and paste a formatted citation
x
Spandidos Publications style
Wan J, Che Y, Kang N and Wu W: SOCS3 blocks HIF-1α expression to inhibit proliferation and angiogenesis of human small cell lung cancer by downregulating activation of Akt, but not STAT3. Mol Med Rep 12: 83-92, 2015.
APA
Wan, J., Che, Y., Kang, N., & Wu, W. (2015). SOCS3 blocks HIF-1α expression to inhibit proliferation and angiogenesis of human small cell lung cancer by downregulating activation of Akt, but not STAT3. Molecular Medicine Reports, 12, 83-92. https://doi.org/10.3892/mmr.2015.3368
MLA
Wan, J., Che, Y., Kang, N., Wu, W."SOCS3 blocks HIF-1α expression to inhibit proliferation and angiogenesis of human small cell lung cancer by downregulating activation of Akt, but not STAT3". Molecular Medicine Reports 12.1 (2015): 83-92.
Chicago
Wan, J., Che, Y., Kang, N., Wu, W."SOCS3 blocks HIF-1α expression to inhibit proliferation and angiogenesis of human small cell lung cancer by downregulating activation of Akt, but not STAT3". Molecular Medicine Reports 12, no. 1 (2015): 83-92. https://doi.org/10.3892/mmr.2015.3368
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