CRISPR/Cas9-mediated knockout of c-REL in HeLa cells results in profound defects of the cell cycle
Cervical cancer is the fourth common cancer in women resulting worldwide in 266,000 deaths per year. Belonging to the carcinomas, new insights into cervical cancer biology may also have great implications for finding new treatment strategies for other kinds of epithelial cancers. Although the transcription factor NF-κB is known as a key player in tumor formation, the relevance of its particular subunits is still underestimated. Here, we applied CRISPR/Cas9n-mediated genome editing to successfully knockout the NF-κB subunit c-REL in HeLa Kyoto cells as a model system for cervical cancers. We successfully generated a homozygous deletion in the c-REL gene, which we validated using sequencing, qPCR, immunocytochemistry, western blot analysis, EMSA and analysis of off-target effects. On the functional level, we observed the deletion of c-REL to result in a significantly decreased cell proliferation in comparison to wildtype (wt) without affecting apoptosis. The impaired proliferative behavior of c-REL-/- cells was accompanied by a strongly decreased amount of the H2B protein as well as a significant delay in the prometaphase of mitosis compared to c-REL+/+ HeLa Kyoto cells. c-REL-/- cells further showed significantly decreased expression levels of c-REL target genes in comparison to wt. In accordance to our proliferation data, we observed the c-REL knockout to result in a significantly increased resistance against the chemotherapeutic agents 5-Fluoro-2'-deoxyuridine (5-FUDR) and cisplatin. In summary, our findings emphasize the importance of c-REL signaling in a cellular model of cervical cancer with direct clinical implications for the development of new treatment strategies.
| Medienart: |
E-Artikel |
|---|
| Erscheinungsjahr: |
2017 |
|---|---|
| Erschienen: |
2017 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:12 |
|---|---|
| Enthalten in: |
PloS one - 12(2017), 8 vom: 31., Seite e0182373 |
| Sprache: |
Englisch |
|---|
| Beteiligte Personen: |
Slotta, Carsten [VerfasserIn] |
|---|
| Links: |
|---|
| Themen: |
Histones |
|---|
| Anmerkungen: |
Date Completed 29.09.2017 Date Revised 13.11.2018 published: Electronic-eCollection Citation Status MEDLINE |
|---|
| doi: |
10.1371/journal.pone.0182373 |
|---|
| funding: |
|
|---|---|
| Förderinstitution / Projekttitel: |
|
| PPN (Katalog-ID): |
NLM274417723 |
|---|
| LEADER | 01000naa a22002652 4500 | ||
|---|---|---|---|
| 001 | NLM274417723 | ||
| 003 | DE-627 | ||
| 005 | 20231225003438.0 | ||
| 007 | cr uuu---uuuuu | ||
| 008 | 231225s2017 xx |||||o 00| ||eng c | ||
| 024 | 7 | |a 10.1371/journal.pone.0182373 |2 doi | |
| 028 | 5 | 2 | |a pubmed24n0914.xml |
| 035 | |a (DE-627)NLM274417723 | ||
| 035 | |a (NLM)28767691 | ||
| 040 | |a DE-627 |b ger |c DE-627 |e rakwb | ||
| 041 | |a eng | ||
| 100 | 1 | |a Slotta, Carsten |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a CRISPR/Cas9-mediated knockout of c-REL in HeLa cells results in profound defects of the cell cycle |
| 264 | 1 | |c 2017 | |
| 336 | |a Text |b txt |2 rdacontent | ||
| 337 | |a ƒaComputermedien |b c |2 rdamedia | ||
| 338 | |a ƒa Online-Ressource |b cr |2 rdacarrier | ||
| 500 | |a Date Completed 29.09.2017 | ||
| 500 | |a Date Revised 13.11.2018 | ||
| 500 | |a published: Electronic-eCollection | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a Cervical cancer is the fourth common cancer in women resulting worldwide in 266,000 deaths per year. Belonging to the carcinomas, new insights into cervical cancer biology may also have great implications for finding new treatment strategies for other kinds of epithelial cancers. Although the transcription factor NF-κB is known as a key player in tumor formation, the relevance of its particular subunits is still underestimated. Here, we applied CRISPR/Cas9n-mediated genome editing to successfully knockout the NF-κB subunit c-REL in HeLa Kyoto cells as a model system for cervical cancers. We successfully generated a homozygous deletion in the c-REL gene, which we validated using sequencing, qPCR, immunocytochemistry, western blot analysis, EMSA and analysis of off-target effects. On the functional level, we observed the deletion of c-REL to result in a significantly decreased cell proliferation in comparison to wildtype (wt) without affecting apoptosis. The impaired proliferative behavior of c-REL-/- cells was accompanied by a strongly decreased amount of the H2B protein as well as a significant delay in the prometaphase of mitosis compared to c-REL+/+ HeLa Kyoto cells. c-REL-/- cells further showed significantly decreased expression levels of c-REL target genes in comparison to wt. In accordance to our proliferation data, we observed the c-REL knockout to result in a significantly increased resistance against the chemotherapeutic agents 5-Fluoro-2'-deoxyuridine (5-FUDR) and cisplatin. In summary, our findings emphasize the importance of c-REL signaling in a cellular model of cervical cancer with direct clinical implications for the development of new treatment strategies | ||
| 650 | 4 | |a Journal Article | |
| 650 | 7 | |a Histones |2 NLM | |
| 650 | 7 | |a RELA protein, human |2 NLM | |
| 650 | 7 | |a Transcription Factor RelA |2 NLM | |
| 700 | 1 | |a Schlüter, Thomas |e verfasserin |4 aut | |
| 700 | 1 | |a Ruiz-Perera, Lucia M |e verfasserin |4 aut | |
| 700 | 1 | |a Kadhim, Hussamadin M |e verfasserin |4 aut | |
| 700 | 1 | |a Tertel, Tobias |e verfasserin |4 aut | |
| 700 | 1 | |a Henkel, Elena |e verfasserin |4 aut | |
| 700 | 1 | |a Hübner, Wolfgang |e verfasserin |4 aut | |
| 700 | 1 | |a Greiner, Johannes F W |e verfasserin |4 aut | |
| 700 | 1 | |a Huser, Thomas |e verfasserin |4 aut | |
| 700 | 1 | |a Kaltschmidt, Barbara |e verfasserin |4 aut | |
| 700 | 1 | |a Kaltschmidt, Christian |e verfasserin |4 aut | |
| 773 | 0 | 8 | |i Enthalten in |t PloS one |d 2006 |g 12(2017), 8 vom: 31., Seite e0182373 |w (DE-627)NLM167327399 |x 1932-6203 |7 nnns |
| 773 | 1 | 8 | |g volume:12 |g year:2017 |g number:8 |g day:31 |g pages:e0182373 |
| 856 | 4 | 0 | |u http://dx.doi.org/10.1371/journal.pone.0182373 |3 Volltext |
| 912 | |a GBV_USEFLAG_A | ||
| 912 | |a GBV_NLM | ||
| 951 | |a AR | ||
| 952 | |d 12 |j 2017 |e 8 |b 31 |h e0182373 | ||