Genetic status of KRAS modulates the role of Neuropilin-1 in tumorigenesis

Abstract Neuropilin-1 (NRP1), a non–tyrosine kinase receptor, is overexpressed in many cancers including pancreatic and lung cancers. Inhibition of NRP1 expression, however, has differing pro-tumor vs. anti-tumor effects, depending on the cancer types. To understand the differential role of NRP1 in...

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Autores principales: Sneha Vivekanandhan, Lijuan Yang, Ying Cao, Engfeng Wang, Shamit K. Dutta, Anil K. Sharma, Debabrata Mukhopadhyay
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Publicado: Nature Portfolio 2017
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Acceso en línea:https://doaj.org/article/ee25eeec42b64df0ac2ab2c256fdf135
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spelling oai:doaj.org-article:ee25eeec42b64df0ac2ab2c256fdf1352021-12-02T15:04:57ZGenetic status of KRAS modulates the role of Neuropilin-1 in tumorigenesis10.1038/s41598-017-12992-22045-2322https://doaj.org/article/ee25eeec42b64df0ac2ab2c256fdf1352017-10-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-12992-2https://doaj.org/toc/2045-2322Abstract Neuropilin-1 (NRP1), a non–tyrosine kinase receptor, is overexpressed in many cancers including pancreatic and lung cancers. Inhibition of NRP1 expression, however, has differing pro-tumor vs. anti-tumor effects, depending on the cancer types. To understand the differential role of NRP1 in tumorigenesis process, we utilized cells from two different cancer types, pancreatic and lung, each containing either wild type KRAS (KRAS wt) or mutant KRAS (KRAS mt). Inhibition of NRP1 expression by shRNA in both pancreatic and lung cancer cells containing dominant active KRAS mt caused increased cell viability and tumor growth. On the contrary, inhibition of NRP1, in the tumor cells containing KRAS wt showed decreased tumor growth. Importantly, concurrent inhibition of KRAS mt and NRP1 in the tumor cells reverses the increased viability and leads to tumor inhibition. We found that NRP1 shRNA expressing KRAS mt tumor cells caused increased cell viability by decreasing SMAD2 phosphorylation. Our findings demonstrate that the effects of NRP1 knockdown in cancer cells are dependent on the genetic status of KRAS.Sneha VivekanandhanLijuan YangYing CaoEngfeng WangShamit K. DuttaAnil K. SharmaDebabrata MukhopadhyayNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-11 (2017)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Sneha Vivekanandhan
Lijuan Yang
Ying Cao
Engfeng Wang
Shamit K. Dutta
Anil K. Sharma
Debabrata Mukhopadhyay
Genetic status of KRAS modulates the role of Neuropilin-1 in tumorigenesis
description Abstract Neuropilin-1 (NRP1), a non–tyrosine kinase receptor, is overexpressed in many cancers including pancreatic and lung cancers. Inhibition of NRP1 expression, however, has differing pro-tumor vs. anti-tumor effects, depending on the cancer types. To understand the differential role of NRP1 in tumorigenesis process, we utilized cells from two different cancer types, pancreatic and lung, each containing either wild type KRAS (KRAS wt) or mutant KRAS (KRAS mt). Inhibition of NRP1 expression by shRNA in both pancreatic and lung cancer cells containing dominant active KRAS mt caused increased cell viability and tumor growth. On the contrary, inhibition of NRP1, in the tumor cells containing KRAS wt showed decreased tumor growth. Importantly, concurrent inhibition of KRAS mt and NRP1 in the tumor cells reverses the increased viability and leads to tumor inhibition. We found that NRP1 shRNA expressing KRAS mt tumor cells caused increased cell viability by decreasing SMAD2 phosphorylation. Our findings demonstrate that the effects of NRP1 knockdown in cancer cells are dependent on the genetic status of KRAS.
format article
author Sneha Vivekanandhan
Lijuan Yang
Ying Cao
Engfeng Wang
Shamit K. Dutta
Anil K. Sharma
Debabrata Mukhopadhyay
author_facet Sneha Vivekanandhan
Lijuan Yang
Ying Cao
Engfeng Wang
Shamit K. Dutta
Anil K. Sharma
Debabrata Mukhopadhyay
author_sort Sneha Vivekanandhan
title Genetic status of KRAS modulates the role of Neuropilin-1 in tumorigenesis
title_short Genetic status of KRAS modulates the role of Neuropilin-1 in tumorigenesis
title_full Genetic status of KRAS modulates the role of Neuropilin-1 in tumorigenesis
title_fullStr Genetic status of KRAS modulates the role of Neuropilin-1 in tumorigenesis
title_full_unstemmed Genetic status of KRAS modulates the role of Neuropilin-1 in tumorigenesis
title_sort genetic status of kras modulates the role of neuropilin-1 in tumorigenesis
publisher Nature Portfolio
publishDate 2017
url https://doaj.org/article/ee25eeec42b64df0ac2ab2c256fdf135
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