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Large-scale production of human blastoids amenable to modeling blastocyst development and maternal-fetal cross talk.

Leqian Yu | Deirdre Logsdon | Carlos A Pinzon-Arteaga | Jialei Duan | Toshihiko Ezashi | Yulei Wei | Ana Elisa Ribeiro Orsi | Seiya Oura | Lizhong Liu | Lei Wang | Kun Liu | Xiaoyun Ding | Linfeng Zhan | Junfei Zhang | Asrafun Nahar | Caitlen Stobbe | Mandy Katz-Jaffe | William B Schoolcraft | Tao Tan | Gary C Hon | Ye Yuan | Jun Wu
Cell stem cell | 2023

Recent advances in human blastoids have opened new avenues for modeling early human development and implantation. One limitation of our first protocol for human blastoid generation was relatively low efficiency. We now report an optimized protocol for the efficient generation of large quantities of high-fidelity human blastoids from naive pluripotent stem cells. This enabled proteomics analysis that identified phosphosite-specific signatures potentially involved in the derivation and/or maintenance of the signaling states in human blastoids. Additionally, we uncovered endometrial stromal effects in promoting trophoblast cell survival, proliferation, and syncytialization during co-culture with blastoids and blastocysts. Side-by-side single-cell RNA sequencing revealed similarities and differences in transcriptome profiles between pre-implantation blastoids and blastocysts, as well as post-implantation cultures, and uncovered a population resembling early migratory trophoblasts during co-culture with endometrial stromal cells. Our optimized protocol will facilitate broader use of human blastoids as an accessible, perturbable, scalable, and tractable model for human blastocysts.

Pubmed ID: 37683605

Additional research tools detected in this publication

None found

Antibodies used in this publication

Associated grants

  • Agency: NIH HHS, United States
    Id: S10 OD028630

Publication data is provided by the National Library of Medicine ® and PubMed ®. Data is retrieved from PubMed ® on a weekly schedule. For terms and conditions see the National Library of Medicine Terms and Conditions.

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Phospho-p44/42 MAPK (Erk1/2) (Thr202/Tyr204) (D13.14.4E) XP® Rabbit mAb (antibody)

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Stat3 (D3Z2G) Rabbit mAb #12640 (antibody)

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Phospho-Akt (Ser473) (D9E) XP® Rabbit mAb (antibody)

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Anti-Brachyury / Bry antibody [EPR18113] (antibody)

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Sox 17, SRY (sex determining region Y)-box 17 (antibody)

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CDX2 (D11D10) Rabbit mAb (antibody)

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