{"id":128108,"date":"2025-08-15T20:05:00","date_gmt":"2025-08-15T18:05:00","guid":{"rendered":"https:\/\/ibecbarcelona.eu\/?p=128108"},"modified":"2025-08-15T20:22:20","modified_gmt":"2025-08-15T18:22:20","slug":"human-embryo-implantation-recorded-in-real-time-for-the-first-time","status":"publish","type":"post","link":"https:\/\/ibecbarcelona.eu\/ca\/graban-por-primera-vez-el-proceso-de-implantacion-de-un-embrion-humano","title":{"rendered":"Graven per primera vegada el proc\u00e9s d’implantaci\u00f3 d’un embri\u00f3 hum\u00e0 en temps real"},"content":{"rendered":"\n

Investigadors de l’Institut de Bioenginyeria de Catalunya (IBEC) graven per primera vegada la implantaci\u00f3 d’embrions humans en temps real, utilitzant un innovador sistema desenvolupat al laboratori que simula les capes externes de l’\u00fater en 3D.<\/strong> La decisi\u00f3 en el proc\u00e9s d’implantaci\u00f3 \u00e9s una de les principals causes d’infertilitat, essent responsable del 60% dels avortaments espontanis.<\/strong> El treball, publicat a la revista Science Advances<\/em>, pot ajudar a comprendre millor els mecanismes que subjauen el proc\u00e9s d’implantaci\u00f3, millorant les taxes de fertilitat i optimitzant els processos de reproducci\u00f3 assistida.<\/strong><\/p>\n\n\n\n

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D’esquerra a dreta: Samuel Ojosnegros, Anna Seriola i Am\u00e9lie Godeau als laboratoris de l’IBEC.<\/figcaption><\/figure>\n\n\n\n

Investigadors de l’Institut de Bioenginyeria de Catalunya (IBEC)<\/a> en col\u00b7laboraci\u00f3 amb el Servei de  Medicina de la Reproducci\u00f3 del centre Dexeus Dona – Hospital Universitari Dexeus han gravat imatges in\u00e8dites del proc\u00e9s d’implantaci\u00f3 d’un embri\u00f3 hum\u00e0. Es tracta de la primera vegada que s’aconsegueix gravar la implantaci\u00f3 en temps real i en 3D<\/strong>.<\/p>\n\n\n\n

La decisi\u00f3 en el proc\u00e9s d’implantaci\u00f3 de <\/strong>l’embri\u00f3 a l’\u00fater \u00e9s una de les principals causes d’infertilitat<\/strong>, sent responsable del 60% dels avortaments espontanis<\/strong>. Fins ara, no havia estat possible observar aquest proc\u00e9s en temps real en humans i la poca informaci\u00f3 de qu\u00e8 es disposava provenia d’imatges fixes, preses en moments concrets del proc\u00e9s.<\/p>\n\n\n\n

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Hem observat que els embrions humans s’enterren dins de la matriu exercint una for\u00e7a considerable durant el proc\u00e9s. Aquestes forces s\u00f3n necess\u00e0ries, ja que han de ser capaces d’envair el teixit uter\u00ed en el qual s’integren per complet. \u00c9s un proc\u00e9s sorprenentment invasiu. <\/em><\/p>\n\n\n\n

Samuel Ojosnegros<\/p>\n<\/blockquote>\n\n\n\n

“Hem observat que els embrions humans s’enterren dins de la matriu exercint una for\u00e7a considerable durant el proc\u00e9s. Aquestes forces s\u00f3n necess\u00e0ries, ja que han de ser capaces d’envair el teixit uter\u00ed en el qual s’integren per complet. \u00c9s un proc\u00e9s sorprenentment invasiu. De fet, tot i que se sap que moltes dones senten dolor abdominal i fins i tot lleus sagnats durant la implantaci\u00f3, mai s’havia vist com succe\u00efa el proc\u00e9s.”<\/em> Detalla Samuel Ojosnegros<\/strong>, investigador principal del grup de Bioenginyeria per a la Salut Reproductiva de<\/a> l’IBEC i l\u00edder de l’estudi.<\/p>\n\n\n\n

Per avan\u00e7ar durant la implantaci\u00f3, l’embri\u00f3 allibera enzims que degraden el teixit que l’envolta, per\u00f2 se sap que tamb\u00e9 necessita exercir forces per poder penetrar a trav\u00e9s de les capes subjacents de l’\u00fater. Es tracta d’un teixit fibr\u00f3s que est\u00e0 ple de col\u00b7lagen, una prote\u00efna molt r\u00edgida que tamb\u00e9 forma tendons i cart\u00edlags. “L’embri\u00f3 obre un cam\u00ed a trav\u00e9s d’aquesta estructura i comen\u00e7a a formar teixits especialitzats que es connecten amb els vasos sanguinis de la mare per poder alimentar-se”,<\/em> afegeix Ojosnegros.<\/p>\n\n\n\n

Els resultats obtinguts per l’equip d’investigaci\u00f3 revelen que els embrions humans exerceixen forces de tracci\u00f3 sobre el seu entorn, remodelant-lo. “El que observem \u00e9s que l’embri\u00f3 estira la matriu de l’\u00fater, movent-la i reorganitzant-la. Tamb\u00e9 reacciona a senyals de for\u00e7a externes. La nostra hip\u00f2tesi \u00e9s que les contraccions que es produeixen in vivo poden influir en la implantaci\u00f3 de l’embri\u00f3”<\/em>, explica Am\u00e9lie Godeau<\/strong>, investigadora en el grup d’Ojosnegros i co-primera autora de l’estudi. Aix\u00ed, una invasi\u00f3 efectiva de l’embri\u00f3 est\u00e0 associada a un despla\u00e7ament \u00f2ptim de la matriu, la qual cosa destaca la import\u00e0ncia d’aquestes forces en el proc\u00e9s d’implantaci\u00f3.<\/p>\n\n\n\n

Comprendre millor els mecanismes que subjauen el proc\u00e9s d’implantaci\u00f3 \u00e9s clau i pot tenir un gran impacte en la millora de les taxes de fertilitat, a m\u00e9s d’optimitzar la qualitat embrion\u00e0ria i reduir el temps fins a l’embar\u00e0s en processos de reproducci\u00f3 assistida.<\/a><\/p>\n\n\n\n

Una plataforma per estudiar la implantaci\u00f3 al laboratori<\/strong><\/strong><\/h4>\n\n\n\n
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El que observem \u00e9s que l’embri\u00f3 estira la matriu de l’\u00fater, movent-la i reorganitzant-la. Tamb\u00e9 reacciona a senyals de for\u00e7a externes. La nostra hip\u00f2tesi \u00e9s que les contraccions que es produeixen in vivo poden influir en la implantaci\u00f3 de l’embri\u00f3<\/em><\/p>\n\n\n\n

Am\u00e9lie Godeau<\/p>\n<\/blockquote>\n\n\n\n

Per dur a terme l’estudi, l’equip d’investigaci\u00f3 de l’IBEC va desenvolupar una plataforma capa\u00e7 de permetre que els embrions s’implantin, fora de l’\u00fater matern i en condicions controlades, per poder prendre imatges de fluoresc\u00e8ncia en temps real i analitzar les interaccions mec\u00e0niques de l’embri\u00f3 amb l’entorn. La plataforma es basa en un gel compost per una matriu artificial formada per col\u00b7lagen, molt present en el teixit uter\u00ed, i diverses prote\u00efnes necess\u00e0ries per al desenvolupament dels embrions.<\/p>\n\n\n\n

Els experiments es van dur a terme tant amb embrions humans, com amb embrions de ratol\u00ed, podent comparar ambd\u00f3s processos d’implantaci\u00f3. Quan l’embri\u00f3 de ratol\u00ed entra en contacte amb l’\u00fater, exerceix forces per adherir-se a la seva superf\u00edcie, i a partir d’aqu\u00ed l’\u00fater s’adapta al seu voltant, de manera que l’embri\u00f3 queda embolicat en una cripta uterina. En canvi, l’embri\u00f3 hum\u00e0 exerceix forces per moure’s cap a l\u2019interior, de manera que penetra completament en els teixits uterins i un cop aqu\u00ed comen\u00e7a a cr\u00e9ixer de forma radial, de dins cap a fora.<\/p>\n\n\n\n

“La nostra plataforma ha perm\u00e8s quantificar la din\u00e0mica d’implantaci\u00f3 dels embrions i determinar, en temps real, l’empremta mec\u00e0nica de les forces utilitzades en aquest complex proc\u00e9s”<\/em>, conclou Anna Seriola<\/strong>, investigadora de l’IBEC i co-primera autora de l’estudi.<\/p>\n\n\n\n

V\u00eddeo d’un embri\u00f3 hum\u00e0. En la primera meitat s’observa el proc\u00e9s de compactaci\u00f3 de les c\u00e8l\u00b7lules de l’embri\u00f3. En la segona meitat s’observa com el mateix embri\u00f3 envaeix (s’implanta en) la matriu.<\/figcaption><\/figure>\n\n\n\n

\u201cLa nostra tasca ha consistit a facilitar assessorament t\u00e8cnic i dur a terme una selecci\u00f3 rigorosa dels embrions humans donats a la investigaci\u00f3, amb l\u2019objectiu que reunissin les condicions id\u00f2nies per a l\u2019execuci\u00f3 del projecte\u201d<\/em>, explica Miquel Sol\u00e9<\/strong>, director del Laboratori de Criopreservaci\u00f3 de Dexeus Dona. <\/p>\n\n\n\n

L’estudi ha comptat amb la col\u00b7laboraci\u00f3 L\u2019estudi ha comptat amb la col\u00b7laboraci\u00f3 de l\u2019equip del Servei de Medicina de la Reproducci\u00f3 de Dexeus Dona- Hospital Universitari Dexeus, que ha realitzat la selecci\u00f3 d\u2019embrions humans -donats per a la recerca- que han estat cedits per aquest projecte, el grup de Sistemes Biomim\u00e8tics per a Enginyeria Cel\u00b7lular<\/a>, tamb\u00e9 de l’IBEC i dirigit per Elena Mart\u00ednez, i amb altres institucions, com el Banc de C\u00e8l\u00b7lules Mare de Barcelona (IDIBELL), la Universitat de Barcelona (UB), la Universitat de Tel Aviv, el Centre de Recerca Biom\u00e8dica en Xarxa (CIBER) i l’Institut de Recerca Biom\u00e8dica de Barcelona (IRB Barcelona).<\/p>\n\n\n\n

\n\n\n\n

Article de refer\u00e8ncia<\/strong><\/p>\n\n\n\n

Am\u00e9lie Luise Godeau, Anna Seriola, Oren Tchaicheeyan, Marc Casals, Denitza Denkova, Ester Aroca, Ot Massafret, Albert Parra, Maria Demestre, Anna Ferrer-Vaquer, Shahar Goren, Anna Veiga, Miquel Sol\u00e9, Montse Boada, Jordi Comelles, Elena Mart\u00ednez, Julien Colombelli, Ayelet Lesman, Samuel Ojosnegros. Traction force and mechanosensitivity mediate species-specific implantation patterns in human and mouse embryos<\/strong>. Science Advances<\/em> (2025). DOI: 10.1126\/sciadv.adr5199<\/a><\/p>\n\n\n\n

\n","protected":false},"excerpt":{"rendered":"

Investigadors de l’Institut de Bioenginyeria de Catalunya (IBEC) graven per primera vegada la implantaci\u00f3 d’embrions humans en temps real, utilitzant un innovador sistema desenvolupat al laboratori que simula les capes externes de l’\u00fater en 3D. La decisi\u00f3 en el proc\u00e9s d’implantaci\u00f3 \u00e9s una de les principals causes d’infertilitat, essent responsable del 60% dels avortaments espontanis. El treball, publicat a la revista Science Advances, pot ajudar a comprendre millor els mecanismes que subjauen el proc\u00e9s d’implantaci\u00f3, millorant les taxes de fertilitat i optimitzant els processos de reproducci\u00f3 assistida.<\/p>\n","protected":false},"author":37,"featured_media":128091,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[96],"tags":[1783,1071],"post_formats":[],"class_list":["post-128108","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-noticies-de-recerca","tag-bioengineering-in-reproductive-health-ca","tag-samuel-ojosnegros-ca"],"yoast_head":"\nGraven per primera vegada la implantaci\u00f3 d'un embri\u00f3 hum\u00e0 - Institute for Bioengineering of Catalonia<\/title>\n<meta name=\"description\" content=\"Investigadors de l'Institut de Bioenginyeria de Catalunya (IBEC) graven per primera vegada la implantaci\u00f3 d'embrions 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