(A) Whole-mount in situ hybridization of Lin28a in E9.5–11.5 embryos. (B) Lateral views of Wt (left panel) and Lin28a–/– mice (right panel) at E16.5. White arrow, the tip of the tail; white …
(A) Schematic diagram of the Lin28a gene-targeting construct. The small light-blue box indicates the 5’ and 3’ untranslated regions (UTRs), and the large light-blue box indicates the coding region. …
(A, B) Appearance of Wt and Lin28a–/– mice. Representative Wt (left) and Lin28a–/– (right) pups at P0 (A) and P7 (B) are shown. (C) Body weight of Wt and Lin28a–/– mice. Data are expressed as the …
(A) q-PCR analyses of all Hox genes. All data are expressed as the mean ± standard error of the mean (SEM) (n = 3). *p<0.05. (B) Whole-mount in situ hybridization of Hox genes in E11.5 embryos. …
Source data related to panel (A).
Figure 2B). Whole-mount in situ hybridization of Wt and Lin28a–/– mice embryos at E9.5 (using Hoxa3, Hoxd3, Hoxb8, Hoxc8, Hoxa11, Hoxd12 and Hoxa13 probes), at E10.5 (using Hoxc13 probe) and at …
(A) Dorsal views of thoracic vertebrae and ribs of RA-treated Lin28a–/– mice. R1–R12, 1st to 12th ribs. The asterisk indicates the ablation of the 13th rib. (B–F) Lateral view of cervical and upper …
(A) Comparison of microRNA expression in Wt and Lin28a–/– embryos at E9.5. (B, C) q-PCR analyses of let-7-family members (B) and Hox-embedded microRNAs (C). In (B), data are expressed as the mean (n …
Source data related to panel A-C, and F-H.
(A) Cbx2 targeting and the sequence of Cbx2 mutants. The start codon of Cbx2 is highlighted in red and the PAM sequence for hCas9 is highlighted in yellow. Targeting sequences are underlined. The …
Change in the expression of Cbx2 in Lin28a+/– and Lin28a–/– mice E9.5 embryos were detected by western blot analyses. β-actin is shown as a loading control. All data are expressed as the mean ± SEM …
(A) Schematic diagram of the experimental procedure for ChIP analysis. (B) ChIP and q-PCR analyses of H2K27me3 in Hox A cluster genes in Wt embryos. (C–G) ChIP and q-PCR analyses of H3K27me3 (C), …
Source data related to panel B-G.
(A) Morphology (top panels) and alkaline phosphatase activity (bottom panels) of Wt and Lin28a–/– ES-like cells. (B) Western blot analysis of Lin28a in ES-like cells. β-actin is shown as a loading …
Source data related to panel C-E, G-H, and K.
Anterior arch of the atlas* | Ribs† | Sternum attachment‡ | Lumbar§ | |||||
---|---|---|---|---|---|---|---|---|
13 | 12 | 7 | 61 | 6 | 5 | L6/S1* | ||
Wt(n = 16) | 0 | 16 (100%) | 0 | 16 (100%) | 0 | 7 (43.8%) | 8 (50%) | 1 (6.2%) |
Lin28a+/-(n = 19) | 4 (21.1%) | 19 (100%) | 0 | 19 (100%) | 0 | 0 | 18 (94.7%) | 1 (5.3%) |
Lin28a-/- (n = 14) | 9 (64.3%) | 0 | 14 (100%) | 0 | 14 (100%) | 0 | 9 (64.3%) | 5 (35.7%) |
The percentages of each phenotype are shown in parenthesis.
* The anterior arch of the atlas was formed from C2 or via fusion.
† Total number of pairs of ribs.
‡ Total number of pairs of true ribs that were attached to the sternum.
§ Total number of lumbar vertebrae. L6/S1* indicates an abnormal sacral vertebra that had morphological features of a lumbar vertebra on only one side.
Reagent type (species) or resource | Designation | Source or reference | Identifiers | Additional information |
---|---|---|---|---|
Antibody | anti-Arl4d | Santa Cruz | SC-271274 | mouse monoclonal antibody, for western blot, at 1:500 |
Antibody | anti-b-actin | Sigma | A5316 | mouse monoclonal antibody, for western blot, at 1:2000 |
Antibody | anti-Cbx2 | Abcam | ab80044 | Rabbit polyclonal antibody, for western blot, at 1:500 |
Antibody | anti-CBX2 | Bethyl Laboratories | A302-524A | Rabbit polyclonal antibody, for ChIP |
Antibody | anti-Cbx5 | Cell Signaling Technology | #2616S | Rabbit polyclonal antibody, for western blot, at 1:1000 |
Antibody | anti-DIG-AP Fab fragment antibody | Roche | 1-093-274 | sheep polyclonal antibody, for in situ hybridization |
Antibody | anti-Dusp4 (MKP-2) | Santa Cruz | SC-1200 | Rabbit polyclonal antibody, for western blot, at 1:250 |
Antibody | anti-E2f6 | Santa Cruz | SC-8366 | goat polyclonal antibody, for western blot, at 1:500 |
Antibody | anti-Lin28a | Cell Signaling Technology | #3978S | Rabbit polyclonal antibody, for western blot, at 1:1000 |
Antibody | anti-mouse IgG HRP-conjugated | Sigma | A2304 | goat affinity isolated antibody, for western blot, at 1:2000 |
Antibody | anti-rabbit IgG HRP-conjugated | Sigma | A6154 | goat affinity isolated antibody, for western blot, at 1:2000 |
Antibody | anti-trimethyl-histone H3 (Lys27) | Millipore | #07–449 | Rabbit Polyclonal Antibody, for ChIP |
Antibody | anti-trimethyl-histone H3 (Lys4) | Millipore | #07–473 | Rabbit Polyclonal Antibody,for ChIP |
Antibody | normal rabbit IgG | Santa Cruz | SC-2027 | Rabbit Polyclonal Antibody, for ChIP |
Antibody | RING1B (D22F2) XP rabbit monoclonal antibody (mAb) | Cell Signaling Technology | #5694S | rabbit monoclonal antibody, for ChiP |
Cell Lines | HEK293T cells | ATCC | RRID:CVCL_0063 | |
Cell Lines | Wt or Lin28a-/-ES like cells | Materials and methods section | N/A | |
Chemical compound, drug | 2-mercaptoethanol | Gibco | #21985023 | |
Chemical compound, drug | acetic anhydride | Wako | #011–00276 | |
Chemical compound, drug | Alcian Blue | Sigma | A5268-10G | |
Chemical compound, drug | Alizarin Red S | Sigma | A5533-25G | |
Chemical compound, drug | Chaps | Dojindo Molecular Technologies | 349–04722 | |
Chemical compound, drug | CHIR 99021 | Wako | 034–23103 | |
Chemical compound, drug | Fast Green FCF | Sigma | F7258-25G | |
Chemical compound, drug | Fast Red Violet LB Salt | Sigma | F3381-5G | |
Chemical compound, drug | formamide | Sigma | SIGF5786 | |
Chemical compound, drug | G-418 Sulfate | Wako | 074–05963 | |
Chemical compound, drug | glycine | Wako | #077–00735 | |
Chemical compound, drug | heparin | Nacalai Tesque | 17513–96 | |
Chemical compound, drug | NBT/BCIP | Roche | #1697471 | |
Chemical compound, drug | PD0325901 | Wako | 162–25291 | |
Chemical compound, drug | PFA | Wako | #162–16065 | |
Chemical compound, drug | Retinoic acid (all-trans) | Wako | 182–01111 | |
Chemical compound, drug | sodium pyruvate | Gibco | #11360070 | |
Chemical compound, drug | triethanolamine | Wako | 142–05625 | |
Commercial assay, kit | Chemi-Lumi One | Nacalai Tesque | #07880 | |
Commercial assay, kit | DirectPCR Lysis reagent | Viagen Biotech | #102 T | |
Commercial assay, kit | ExoSAP-IT Express PCR Cleanup Reagents | ThermoFisher scientific | #75001 | |
Commercial assay, kit | FugeneHD | Promega | E2312 | |
Commercial assay, kit | GoTaq Flexi DNA Polymerase | Promega | M8298 | |
Commercial assay, kit | Lipofectamine 2000 | Invitrogen | #11668019 | |
Commercial assay, kit | MegaClear Transcription Clean-Up Kit | Invitrogen | AM1908 | |
Commercial assay, kit | mMESSAGE mMACHINE T7 Kit | Invitrogen | AM1344 | |
Commercial assay, kit | SuperSignal West Femto Maximum Sensitivity Substrate | Thermo Fisher Scientific | #34095 | |
Commercial assay, kit | SYBR Green PCR Master Mix | Applied Biosystems | #4309155 | |
Commercial assay, kit | TaqMan MicroRNA Assays | Applied Biosystems | let-7a (#000377), let-7b (#002619), let-7c (#000379), let-7d (#002283), let-7e (#002406), let-7f (#000382), let-7g (#002282), let-7i (#002221), mir-98 (#000577), mir-10a (#000387), mir-10b (#002218), mir-196a (#241070), mir-196b (#002215), RNU6B (#001093) | |
Commercial assay, kit | TaqMan Rodent MicroRNA Array A and B | Applied Biosystems | #4398979 | |
Commercial assay, kit | TaqMan Rodent MicroRNA Array B | Applied Biosystems | #4398980 | |
Commercial assay, kit | TaqMan Universal Master Mix II, no UNG | Applied Biosystems | #4440040 | |
Commercial assay, kit | the TaqMan MicroRNA Reverse Transcription kit | Applied Biosystems | #4366597 | |
Peptide, recombinant protein | ESGRO Recombinant Mouse LIF Protein | Merck Millipore | ESG1107 | |
Peptide, recombinant protein | Proteinase K recombinant PCR Grade | Roche | 03-115-887-001 | |
Strains | Cbx2 deficient mice | Materials and methods section | N/A | |
Strains | Lin28a deficient mice | Materials and methods section | N/A | |
Strains | Meox2 Cre | The Jackson Laboratory | N/A | |
Other | Dulbecco’s Modified Eagle’s medium (DMEM) | Sigma | D5796 | |
Other | Glutamax | Gibco | #35050061 | |
Other | Immobilon | Millipore | WBKLS0100 | |
Other | nonessential amino acids (NEAAs) | Gibco | #11140050 | |
Other | sheep serum | Thermo Fisher Scientific | 535–81301 | |
Other | skim milk | Wako | #190–12865 | |
Other | tRNA | Roche | 109–495 |
Survival rate of Lin28a mutant mice at various stages.