5-Ethynyl-2'-deoxyuridine

5-Ethynyl-2'-deoxyuridine
Names
	IUPAC name 5-Ethynyl-1-[(2R,4S,5R)-4-hydroxy-5-(hydroxymethyl)oxolan-2-yl]pyrimidine-2,4-dione
	Other names 2'-Deoxy-5-ethynyluridine; 5-Ethynyl-2'-deoxyuridine
Identifiers
CAS Number	61135-33-9 ;
3D model (JSmol)	Interactive image;
Abbreviations	EdU
ChEMBL	ChEMBL222932 ;
ChemSpider	414657 ;
ECHA InfoCard	100.230.902
MeSH	5-ethynyl-2'-deoxyuridine
PubChem CID	472172;
UNII	G373S00W2J ;
CompTox Dashboard (EPA)	DTXSID20976652 ;
	InChI InChI=1S/C11H12N2O5/c1-2-6-4-13(11(17)12-10(6)16)9-3-7(15)8(5-14)18-9/h1,4,7-9,14-15H,3,5H2,(H,12,16,17)/t7-,8+,9+/m0/s1 Key: CDEURGJCGCHYFH-DJLDLDEBSA-N ; InChI=1/C11H12N2O5/c1-2-6-4-13(11(17)12-10(6)16)9-3-7(15)8(5-14)18-9/h1,4,7-9,14-15H,3,5H2,(H,12,16,17)/t7-,8+,9+/m0/s1 Key: CDEURGJCGCHYFH-DJLDLDEBBH;
	SMILES C#C\C1=C\N(C(=O)NC1=O)[C@H]2C[C@H](O)[C@@H](CO)O2;
Properties
Chemical formula	C11H12N2O5
Molar mass	252.226 g·mol−1
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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	Infobox references

5-Ethynyl-2´-deoxyuridine (EdU) is a thymidine analogue which is incorporated into the DNA of dividing cells. EdU is used to assay DNA synthesis in cell culture and detect cells in embryonic, neonatal and adult animals which have undergone DNA synthesis.[1] Whilst at high doses it can be cytotoxic, this molecule is now widely used to track proliferating cells in multiple biological systems.

EdU-labelling allows cells to be isolated without denaturing RNA, allowing researchers determine the transcriptional profile of cells.[2] This approach has been used to assess transcription in neuronal cells[3] and tissues[4] that have recently divided either in vitro or in vivo.

Detection

EdU is detected with a fluorescent azide which forms a covalent bond using click chemistry.[1][5] Unlike the commonly used bromodeoxyuridine, EdU detection requires no heat or acid treatment. EdU incorporated into DNA induces DNA damage, primarily during DNA replication, which is reflected by phosphorylation of histone H2AX, arrest in the cell cycle progression and apoptosis.[6]

References

Chehrehasa, F; Meedeniya, AC; Dwyer, P; Abrahamsen, G; Mackay-Sim, A (February 2009). "EdU, a new thymidine analogue for labelling proliferating cells in the nervous system". J. Neurosci. Methods. 177 (1): 122–30. doi:10.1016/j.jneumeth.2008.10.006. hdl:10072/25744. PMID 18996411. S2CID 21427874.
Endaya, Berwini; Cavanagh, Brenton; Alowaidi, Faisal; Walker, Tom; Pennington, Nicholas de; Ng, Jin-Ming A.; Lam, Paula Y.P.; Mackay-Sim, Alan; Neuzil, Jiri (2016). "Isolating dividing neural and brain tumour cells for gene expression profiling". Journal of Neuroscience Methods. 257: 121–133. doi:10.1016/j.jneumeth.2015.09.020. PMID 26432933. S2CID 44969376.
Endaya, Berwini B.; Lam, Paula Y.P.; Meedeniya, Adrian C.B.; Neuzil, Jiri (2016-01-01). "Transcriptional profiling of dividing tumor cells detects intratumor heterogeneity linked to cell proliferation in a brain tumor model". Molecular Oncology. 10 (1): 126–137. doi:10.1016/j.molonc.2015.09.001. ISSN 1878-0261. PMC 5528932. PMID 26388584.
Ng, Hui Xuan; Lee, Ean Phing; Cavanagh, Brenton L.; Britto, Joanne M.; Tan, Seong-Seng (2017). "A method for isolating cortical interneurons sharing the same birthdays for gene expression studies". Experimental Neurology. 295: 36–45. doi:10.1016/j.expneurol.2017.05.006. PMID 28511841. S2CID 3377296.
Cavanagh, Brenton; Walker, T; Norazit, A; Meedeniya, A. C. (15 September 2011). "Thymidine analogues for tracking DNA synthesis". Molecules. 16 (9): 7980–93. doi:10.3390/molecules16097980. PMC 6264245. PMID 21921870.
Zhao, H; Halicka, HD; Li, J; Biela, E; Berniak, K; Dobrucki, J; Darzynkiewicz, Z (November 2013). "DNA Damage Signaling, Impairment of Cell Cycle Progression, and Apoptosis Triggered by 5-Ethynyl-2'-deoxyuridine Incorporated into DNA". Cytometry A. 83 (11): 979–88. doi:10.1002/cyto.a.22396. PMC 3846616. PMID 24115313.

External links

Media related to EdU at Wikimedia Commons

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[:0-1] Chehrehasa, F; Meedeniya, AC; Dwyer, P; Abrahamsen, G; Mackay-Sim, A (February 2009). "EdU, a new thymidine analogue for labelling proliferating cells in the nervous system". J. Neurosci. Methods. 177 (1): 122–30. doi:10.1016/j.jneumeth.2008.10.006. hdl:10072/25744. PMID 18996411. S2CID 21427874.

[2] Endaya, Berwini; Cavanagh, Brenton; Alowaidi, Faisal; Walker, Tom; Pennington, Nicholas de; Ng, Jin-Ming A.; Lam, Paula Y.P.; Mackay-Sim, Alan; Neuzil, Jiri (2016). "Isolating dividing neural and brain tumour cells for gene expression profiling". Journal of Neuroscience Methods. 257: 121–133. doi:10.1016/j.jneumeth.2015.09.020. PMID 26432933. S2CID 44969376.

[3] Endaya, Berwini B.; Lam, Paula Y.P.; Meedeniya, Adrian C.B.; Neuzil, Jiri (2016-01-01). "Transcriptional profiling of dividing tumor cells detects intratumor heterogeneity linked to cell proliferation in a brain tumor model". Molecular Oncology. 10 (1): 126–137. doi:10.1016/j.molonc.2015.09.001. ISSN 1878-0261. PMC 5528932. PMID 26388584.

[4] Ng, Hui Xuan; Lee, Ean Phing; Cavanagh, Brenton L.; Britto, Joanne M.; Tan, Seong-Seng (2017). "A method for isolating cortical interneurons sharing the same birthdays for gene expression studies". Experimental Neurology. 295: 36–45. doi:10.1016/j.expneurol.2017.05.006. PMID 28511841. S2CID 3377296.

[5] Cavanagh, Brenton; Walker, T; Norazit, A; Meedeniya, A. C. (15 September 2011). "Thymidine analogues for tracking DNA synthesis". Molecules. 16 (9): 7980–93. doi:10.3390/molecules16097980. PMC 6264245. PMID 21921870.

[6] Zhao, H; Halicka, HD; Li, J; Biela, E; Berniak, K; Dobrucki, J; Darzynkiewicz, Z (November 2013). "DNA Damage Signaling, Impairment of Cell Cycle Progression, and Apoptosis Triggered by 5-Ethynyl-2'-deoxyuridine Incorporated into DNA". Cytometry A. 83 (11): 979–88. doi:10.1002/cyto.a.22396. PMC 3846616. PMID 24115313.