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Sökning: id:"swepub:oai:lup.lub.lu.se:673c0e70-382a-44b7-9230-c1380c51def0" > Functional malignan...

Functional malignant cell heterogeneity in pancreatic neuroendocrine tumors revealed by targeting of PDGF-DD.

Cortez, Eliane (författare)
Lund University,Lunds universitet,Avdelningen för translationell cancerforskning,Institutionen för laboratoriemedicin,Medicinska fakulteten,Experimentell onkologi,Forskargrupper vid Lunds universitet,Division of Translational Cancer Research,Department of Laboratory Medicine,Faculty of Medicine,Experimental oncology,Lund University Research Groups
Gladh, Hanna (författare)
Karolinska Institutet
Braun, Sebastian (författare)
Lund University,Lunds universitet,Avdelningen för translationell cancerforskning,Institutionen för laboratoriemedicin,Medicinska fakulteten,Experimentell onkologi,Forskargrupper vid Lunds universitet,Division of Translational Cancer Research,Department of Laboratory Medicine,Faculty of Medicine,Experimental oncology,Lund University Research Groups
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Bocci, Matteo (författare)
Lund University,Lunds universitet,Avdelningen för translationell cancerforskning,Institutionen för laboratoriemedicin,Medicinska fakulteten,Experimentell onkologi,Forskargrupper vid Lunds universitet,Division of Translational Cancer Research,Department of Laboratory Medicine,Faculty of Medicine,Experimental oncology,Lund University Research Groups
Cordero, Eugenia (författare)
Lund University,Lunds universitet,Avdelningen för translationell cancerforskning,Institutionen för laboratoriemedicin,Medicinska fakulteten,Experimentell onkologi,Forskargrupper vid Lunds universitet,Division of Translational Cancer Research,Department of Laboratory Medicine,Faculty of Medicine,Experimental oncology,Lund University Research Groups
Björkström, Niklas K (författare)
Karolinska Institutet
Miyazaki, Hideki (författare)
Lund University,Lunds universitet,Avdelningen för translationell cancerforskning,Institutionen för laboratoriemedicin,Medicinska fakulteten,Division of Translational Cancer Research,Department of Laboratory Medicine,Faculty of Medicine
Michael, Iacovos P (författare)
Swiss Federal Institute of Technology
Eriksson, Ulf (författare)
Karolinska Institutet
Folestad, Erika (författare)
Karolinska Institutet
Pietras, Kristian (författare)
Lund University,Lunds universitet,Avdelningen för translationell cancerforskning,Institutionen för laboratoriemedicin,Medicinska fakulteten,Experimentell onkologi,Forskargrupper vid Lunds universitet,Division of Translational Cancer Research,Department of Laboratory Medicine,Faculty of Medicine,Experimental oncology,Lund University Research Groups
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 (creator_code:org_t)
2016-02
2016
Engelska.
Ingår i: Proceedings of the National Academy of Sciences. - : Proceedings of the National Academy of Sciences. - 1091-6490 .- 0027-8424. ; 113:7, s. 864-873
Relaterad länk:
http://www.ncbi.nlm....
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http://dx.doi.org/10...
https://www.pnas.org...
https://lup.lub.lu.s...
https://doi.org/10.1...
http://kipublication...
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  • Tidskriftsartikel (refereegranskat)
Abstract Ämnesord
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  • Intratumoral heterogeneity is an inherent feature of most human cancers and has profound implications for cancer therapy. As a result, there is an emergent need to explore previously unmapped mechanisms regulating distinct subpopulations of tumor cells and to understand their contribution to tumor progression and treatment response. Aberrant platelet-derived growth factor receptor beta (PDGFRβ) signaling in cancer has motivated the development of several antagonists currently in clinical use, including imatinib, sunitinib, and sorafenib. The discovery of a novel ligand for PDGFRβ, platelet-derived growth factor (PDGF)-DD, opened the possibility of a previously unidentified signaling pathway involved in tumor development. However, the precise function of PDGF-DD in tumor growth and invasion remains elusive. Here, making use of a newly generated Pdgfd knockout mouse, we reveal a functionally important malignant cell heterogeneity modulated by PDGF-DD signaling in pancreatic neuroendocrine tumors (PanNET). Our analyses demonstrate that tumor growth was delayed in the absence of signaling by PDGF-DD. Surprisingly, ablation of PDGF-DD did not affect the vasculature or stroma of PanNET; instead, we found that PDGF-DD stimulated bulk tumor cell proliferation by induction of paracrine mitogenic signaling between heterogeneous malignant cell clones, some of which expressed PDGFRβ. The presence of a subclonal population of tumor cells characterized by PDGFRβ expression was further validated in a cohort of human PanNET. In conclusion, we demonstrate a previously unrecognized heterogeneity in PanNET characterized by signaling through the PDGF-DD/PDGFRβ axis.

Ämnesord

MEDICIN OCH HÄLSOVETENSKAP  -- Klinisk medicin -- Cancer och onkologi (hsv//swe)
MEDICAL AND HEALTH SCIENCES  -- Clinical Medicine -- Cancer and Oncology (hsv//eng)

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