Redox-Regulation in Cancer Stem Cells

Cancer stem cells (CSCs) represent a small subset of slowly dividing cells with tumor-initiating ability. They can self-renew and differentiate into all the distinct cell populations within a tumor. CSCs are naturally resistant to chemotherapy or radiotherapy. CSCs, thus, can repopulate a tumor afte...

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Main Authors: Uwe Lendeckel, Carmen Wolke
Format: Article
Language:English
Published: MDPI AG 2022-09-01
Series:Biomedicines
Subjects:
Online Access:https://www.mdpi.com/2227-9059/10/10/2413
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author Uwe Lendeckel
Carmen Wolke
author_facet Uwe Lendeckel
Carmen Wolke
author_sort Uwe Lendeckel
collection DOAJ
description Cancer stem cells (CSCs) represent a small subset of slowly dividing cells with tumor-initiating ability. They can self-renew and differentiate into all the distinct cell populations within a tumor. CSCs are naturally resistant to chemotherapy or radiotherapy. CSCs, thus, can repopulate a tumor after therapy and are responsible for recurrence of disease. Stemness manifests itself through, among other things, the expression of stem cell markers, the ability to induce sphere formation and tumor growth in vivo, and resistance to chemotherapeutics and irradiation. Stemness is maintained by keeping levels of reactive oxygen species (ROS) low, which is achieved by enhanced activity of antioxidant pathways. Here, cellular sources of ROS, antioxidant pathways employed by CSCs, and underlying mechanisms to overcome resistance are discussed.
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spelling doaj.art-b1924145b850429e979e51beb545cac42023-11-23T23:02:39ZengMDPI AGBiomedicines2227-90592022-09-011010241310.3390/biomedicines10102413Redox-Regulation in Cancer Stem CellsUwe Lendeckel0Carmen Wolke1Institute of Medical Biochemistry and Molecular Biology, University Medicine Greifswald, D-17475 Greifswald, GermanyInstitute of Medical Biochemistry and Molecular Biology, University Medicine Greifswald, D-17475 Greifswald, GermanyCancer stem cells (CSCs) represent a small subset of slowly dividing cells with tumor-initiating ability. They can self-renew and differentiate into all the distinct cell populations within a tumor. CSCs are naturally resistant to chemotherapy or radiotherapy. CSCs, thus, can repopulate a tumor after therapy and are responsible for recurrence of disease. Stemness manifests itself through, among other things, the expression of stem cell markers, the ability to induce sphere formation and tumor growth in vivo, and resistance to chemotherapeutics and irradiation. Stemness is maintained by keeping levels of reactive oxygen species (ROS) low, which is achieved by enhanced activity of antioxidant pathways. Here, cellular sources of ROS, antioxidant pathways employed by CSCs, and underlying mechanisms to overcome resistance are discussed.https://www.mdpi.com/2227-9059/10/10/2413antioxidant signaling pathwayscancer stem cellCD13drug resistanceSonic Hedgehog signalingNrf2-sinaling
spellingShingle Uwe Lendeckel
Carmen Wolke
Redox-Regulation in Cancer Stem Cells
Biomedicines
antioxidant signaling pathways
cancer stem cell
CD13
drug resistance
Sonic Hedgehog signaling
Nrf2-sinaling
title Redox-Regulation in Cancer Stem Cells
title_full Redox-Regulation in Cancer Stem Cells
title_fullStr Redox-Regulation in Cancer Stem Cells
title_full_unstemmed Redox-Regulation in Cancer Stem Cells
title_short Redox-Regulation in Cancer Stem Cells
title_sort redox regulation in cancer stem cells
topic antioxidant signaling pathways
cancer stem cell
CD13
drug resistance
Sonic Hedgehog signaling
Nrf2-sinaling
url https://www.mdpi.com/2227-9059/10/10/2413
work_keys_str_mv AT uwelendeckel redoxregulationincancerstemcells
AT carmenwolke redoxregulationincancerstemcells