CircRNA FAT1 Regulates Osteoblastic Differentiation of Periodontal Ligament Stem Cells via miR-4781-3p/SMAD5 Pathway

<div>Silence of circFAT1 inhibits the osteogenic differentiation ability of PDLSCs in vivo. (a) The skull defect model of SD rats was constructed. (b) 3D reconstruction image of the rat skull showed that bone regeneration in si-FAT1 group was inhibited. (c) H&amp;E staining and Masson staining results both indicated that the new bone mass in the si-FAT1 group was significantly reduced. (Scale bar: 50 <i>μ</i>m) (d) The bone volume fraction (BV/TV) was decreased in the si-FAT1 group. (e) Experimental mechanism diagram: circFAT1 may regulate PDLSC bone regeneration by targeting SMAD5 through acting as a sponge for miR-4781-3p. <span class="nowrap"><svg height="10.7395pt" id="M37" style="vertical-align:-0.6370001pt" version="1.1" viewbox="-0.0498162 -10.1025 50.9184 10.7395" width="50.9184pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.0091,0,0,-0.0091,0,-5.741)"><path d="M486 158C486 177 478 202 466 220C413 228 386 236 336 262C386 288 413 297 466 304C478 323 486 347 485 366C470 376 444 381 422 380C389 338 368 319 321 288C323 345 329 372 349 422C339 442 322 461 305 470C289 461 271 442 262 422C281 372 287 345 290 288C243 319 222 338 189 380C167 381 142 376 125 366C125 347 133 322 145 304C198 296 225 288 275 262C225 236 198 227 145 220C133 201 125 177 126 158C141 148 167 143 189 144C222 186 243 205 290 236C288 179 282 152 262 102C272 82 289 63 306 54C322 63 340 82 350 102C330 152 324 179 321 236C368 205 390 186 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Stem Cells International

fig8

Figure 8

Figure 8: CircRNA FAT1 Regulates Osteoblastic Differentiation of Periodontal Ligament Stem Cells via miR-4781-3p/SMAD5 Pathway 