Classical cadherins can be further subdivided into the type I classical cadherins consisting of CDH1 (E-cad), CDH2 (N-cad), CDH3 (P-cad), CDH4 (R-cad), and CDH15 (M-cad); the type II classical cadherins include CDH5 (VE-cad), CDH6 (K-cad), CDH7, CDH8,
CDH9 (T1-cad), CDH10 (T2-cad), CDH11 (OB-cad), CDH12 (N-cad-2), CDH18, CDH19, CDH20, CDH22, and CDH24.
All CDH genes (n = 27) screened in this study include CDH1 (E-cadherin), CDH2 (N-cadherin), CDH3 (P-cadherin), CDH4 (R-cadherin), CDH5 (VE-cadherin), CDH6 (K-cadherin), CDH7 (cadherin 7), CDH8 (cadherin 8),
CDH9 (T1-cadherin), CDH10 (T2-cadherin), CDH11 (OB-cadherin), CDH12 (N-cadherin 2), CDH13 (H-cadherin), CDH15 (M-cadherin), CDH16 (KSP-cadherin), CDH17 (LI-cadherin), CDH18 (cadherin 18), CDH20 (cadherin 20), PCDHGA12 (CDH21), CDH22 CDH23 CDH24 DCHS1 (CDH19, or CDH25), CDH26 DCHS2 (CDH27), CDHR3 (CDH28), and CDHR4 (CDH29).
For adhesion, 580 methylated genes were identified, such as Sox-2, Shh, Lphn1, and Cdh9. 553 differentially methylated genes related to secretion including Lphn1, Pim3, and Plcd1 were found.
Biological Gene number Partial related methylated genes function Adhesion 580 Sox-2, Shh, Itpkb, Pkd1, Reln, Ptk2b, Nck2, Ass1 Lphn1, Cdh9, Epdr1, Myf5, Pdpn, Has2, Fgfrl1, Fer Secretion 553 Lphn1, Pim3, Fst, Pim3, Pcsk6, Lax1, Sct, Sytl3 Plcd1, Ykt6, Jak1, Stat2, Myc, Csf2, Lifr, Sos1 Proliferation 787 Dixdc1, Lrp6, Edn3, Nkx2, Cyr61, Src, Sox8, Stk4 Ephb1, Sstr3, Rrm2, Tcf3, Grn, Rhoa, Apc, Nox4, Strn Neuronal 473 Bhlhb9, Cckar, Fzd2, Thy1, Pbx3, regeneration Otx2, Lhx8, Btg2 Klhl1, Dlg2, Pak1, Wnt3, Mif, Tctn1, Evl, Ext1, Als2 Axonal 215 Ifrd1, c-Jun, Bcl2, Tnn, Mbp, Slit3, regeneration Ist1, Drgx, Thy1 Unc5c, Ntrk2, Isl1, Ptk2, Dscam, Atl1, Dnm2, Cxcl12 Figure 3: (a) The distribution of differentially methylated regions (DMRs) peaks in different components of genome.