Wei Cui

Wei Cui, Ph.D.

Extension Assistant Professor

Principal Investigator

Pronouns: he, him, his

Office phone: 413-545-0673

Email: wcui [at] umass [dot] edu

Office location: S521 LSL

Mailing address:

University of Massachusetts
240 Thatcher Road
Amherst, MA 01003

Director, Animal Models Core Facility

Ph.D.: Shandong Agricultural University, China, 2013
Postdoctoral Training
University of Kansas Medical Center, 2013-2014 
University of Massachusetts Amherst, 2014-2017
The Lalor Foundation Postdoctoral Fellowship, 2015

ANIMLSCI 521- Physiology of Reproduction Laboratory
ANIMLSCI 697J - Cells, Genes and Development
ANIMLSCI 795A - Journal Club in Cells, Genes and Development

Research in my laboratory aims at: 1) understanding the cellular and molecular mechanisms underlying mammalian oocyte meiosis, activation, and aging; 2) discovering novel genes, factors, and signaling pathways that are functionally required during mammalian preimplantation embryo development; 3) creating animal models of human genetic diseases using knock-out, knock-in, and transgenesis strategies.

Mammalian oocyte meiosis, activation, and aging

Mammalian oocytes enter meiosis during fetal development, and arrest at diplotene stage of meiotic prophase I - also called germinal vesicle (GV) stage, until puberty. During this prolonged arrest, oocytes grow, differentiate and stockpile maternal components. Following puberty, oocytes resume meiosis under the action of gonadotropin hormones. For most mammals, after going through germinal vesicle breakdown (GVBD), metaphase I (MI), as well as anaphase/telophase I, oocyte extrudes the first polar body and reaches metaphase II (MII). The matured MII oocyte is then ovulated and is ready for fertilization. In some cases, if fertilization or parthenogenetic activation cannot take place right away, oocyte will arrest at MII stage but postovulatory aging then occurs. However, in some species (rat, hamster, some mouse strains, and some patients), spontaneous exit from MII arrest - also named spontaneous activation, can occur quickly in vitro and/or in vivo. A tremendous investment and complicated network (cell-cell interactions, hormones, second messenger molecules, cell cycle regulators, organelle and cytoskeletal systems, transcription and translation factors, ion channels, etc.) has been generated by the body to ensure a high quality oocyte, however, this machinery is also being challenged by environmental exposures, diet, lifestyle, and age. Thus, only understanding the full developmental network, specifically under current challenging situations, can guide our management of human reproduction, including assisted reproductive technology (ART).  

Mammalian preimplantation embryo development

Preimplantation development refers to the period from fertilization to implantation, during which the fertilized oocyte progresses through a number of cleavage divisions and major transcriptional and morphogenetic events that lead to the first cell-fate decision (inner cell mass [ICM] and trophectoderm [TE]) and development into a blastocyst capable of implantation. During this brief but dynamic time window, several events occur, which include: 1) maternal-to-zygotic transition (MZT), namely, degradation of maternal mRNAs and replacement with zygotic transcripts; 2) embryo compaction and polarization, which initiate during the 8-cell stage in mouse embryos; 3) blastomere allocation and ICM/TE separation, which is the very first cell fate determination of our life. Previous microarray and current RNA-seq both confirmed more than 10,000 genes expressed during this period; however, for most of these genes, we do not know their function. More importantly, this time window is right clinically relevant: after in vitro fertilization (IVF) or intracytoplasmic sperm injection (ICSI), human preimplantation embryos need to be cultured in a dish and incubator for several days, then transferred into mother’s uterus. Thus, understanding the role of each expressed gene and what happens during the culture is an essential next step for elucidating developmental networks at play and improving human assisted reproduction.

Animal model generation

There are multiple strategies to create genetically modified animal models. The earliest one is microinjection of foreign DNA into pronucleus to make transgenic animals. This method is straightforward (direct injection into 1-cell embryo); however, integration locus and copy numbers are random. When gene targeting technology is available, we can accurately modify specific locus of interest; but, due to the very low rate of homologous recombination, we have to rely on an excess of somatic cells or stem cells cultured in vitro, then, positive cells are selected to perform somatic cell nuclear transfer (SCNT) to get cloned animals, or through stem cell blastocoel injection to make chimera. In other words, these methods are effective but indirect and not straightforward, thus time consuming. When engineered nucleases (ZFN, TALEN, CRISPR/Cas9) are utilized, things become easier. These nucleases can accurately find precise locus of interest with high efficiency, so we can do direct microinjection into 1-cell embryos for directed gene editing. Compared with ZFN and TALEN, CRISPR/Cas9 system is easier to design, more flexible and cost effective. Currently, we are taking advantage of CRISPR/Cas9 system to perform genome editing.
Hawkins J, Miao X, Cui W, Sun Y.  2021.  Biophysical optimization of preimplantation embryo culture: what mechanics can offer ART. Molecular Human Reproduction. 27
Nayyab S, Gervasi MG, Tourzani DA, Caraballo DA, Jha KN, Teves ME, Cui W, Georg GI, Visconti PE, Salicioni AM.  2021.  TSSK3, a novel target for male contraception, is required for spermiogenesis. Molecular Reproduction and Development.
Cui W, Cheong A, Wang Y, Tsuchida Y, Liu Y, Tremblay KD, Mager J.  2020.  MCRS1 is essential for epiblast development during early mouse embryogenesis. Reproduction. 159:1–13.
Miao X, Sun T, Golan M, Mager J, Cui W.  2020.  Loss of POLR1D results in embryonic lethality prior to blastocyst formation in mice. Molecular Reproduction and Development.
Su J, Miao X, Archambault D, Mager J, Cui W.  2020.  ZC3H4, a novel CCCH-type zinc finger protein, is essential for early embryogenesis in mice. Biology of Reproduction.
Jiang Z, Cui W, Mager J, Thayumanavan S.  2019.  Postfunctionalization of Noncationic RNA–Polymer Complexes for RNA Delivery. Industrial & Engineering Chemistry Research. 58:6982–6991.
Cui W, Cheong A, Wang Y, Tsuchida Y, Liu Y, Tremblay KD, Mager J.  2019.  MCRS1 is essential for epiblast development during early mouse embryogenesis. Reproduction.
Zhang Y, Qu P, Ma X, Qiao F, Ma Y, Qing S, Zhang Y, Wang Y, Cui W.  2018.  Tauroursodeoxycholic acid (TUDCA) alleviates endoplasmic reticulum stress of nuclear donor cells under serum starvation. PLOS ONE. 13:e0196785.
Wang H, Cui W, Meng C, Zhang J, Li Y, Qian Y, Xing G, Zhao D, Cao S.  2018.  MC1568 Enhances Histone Acetylation During Oocyte Meiosis and Improves Development of Somatic Cell Nuclear Transfer Embryos in Pig. Cellular Reprogramming. 20:55–65.
Cui W, Mager J.  2018.  Transcriptional Regulation and Genes Involved in First Lineage Specification During Preimplantation Development. Chromatin Regulation of Early Embryonic Lineage Specification. :31–46.
Jiang Z, Cui W, Prasad P, Touve MA, Gianneschi NC, Mager J, Thayumanavan S.  2018.  Bait-and-Switch Supramolecular Strategy To Generate Noncationic RNA–Polymer Complexes for RNA Delivery. Biomacromolecules.
Cui W, Marcho C, Wang Y, Degani R, Golan M, Tremblay KD, Rivera-Pérez J, Mager J.  2018.  Med20 is essential for early embryogenesis and regulates Nanog expression. Reproduction.
Qu P, Qing S, Liu R, Qin H, Wang W, Qiao F, Ge H, Liu J, Zhang Y, Cui W et al..  2017.  Effects of embryo-derived exosomes on the development of bovine cloned embryos. PLoS ONE. 12:e0174535.
Cui W, Dai X, Marcho C, Han Z, Zhang K, Tremblay KD, Mager J.  2016.  Towards Functional Annotation of the Preimplantation Transcriptome: An RNAi Screen in Mammalian Embryos. Scientific Reports. 6
Chakraborty D, Cui W, Rosario GX, Scott RL, Dhakal P, Renaud SJ, Tachibana M, Rumi KMA, Mason CW, Krieg AJ et al..  2016.  HIF-KDM3A-MMP12 regulatory circuit ensures trophoblast plasticity and placental adaptations to hypoxia. Proceedings of the National Academy of Sciences. 113:E7212–E7221.
Kubota K, Cui W, Dhakal P, Wolfe MW, Rumi KMA, Vivian JL, Roby KF, Soares MJ.  2016.  Rethinking progesterone regulation of female reproductive cyclicity. Proceedings of the National Academy of Sciences. 113:4212–4217.
Wang Y, Yu S, Huang D, Cui M, Hu H, Zhang L, Wang W, Parameswaran N, Jackson M, Osborne B et al..  2016.  Cellular Prion Protein Mediates Pancreatic Cancer Cell Survival and Invasion through Association with and Enhanced Signaling of Notch1. The American Journal of Pathology. 186:2945–2956.
Cui W, Pizzollo J, Han Z, Marcho C, Zhang K, Mager J.  2015.  Nop2 is required for mammalian preimplantation development.. Mol Reprod Dev.
Prasad P, Molla MR, Cui W, Canakci M, Osborne B, Mager J, Thayumanavan S.  2015.  Polyamide Nanogels from Generally Recognized as Safe Components and Their Toxicity in Mouse Preimplantation Embryos.. Biomacromolecules. 16(11):3491-8.
Marcho C, Cui W, Mager J.  2015.  Epigenetic dynamics during preimplantation development. Reproduction. 150:R109–R120.
Zhang C-X, Cui W, Zhang M, Zhang J, Wang T-Y, Zhu J, Jiao G-Z, Tan J-H.  2014.  Role of Na+/Ca2+ Exchanger (NCX) in Modulating Postovulatory Aging of Mouse and Rat Oocytes. PLoS ONE. 9:e93446.
Cui W, Zhang J, Zhang C-X, Jiao G-Z, Zhang M, Wang T-Y, Luo M-J, Tan J-H.  2013.  Control of Spontaneous Activation of Rat Oocytes by Regulating Plasma Membrane Na+/Ca2+ Exchanger Activities. Biology of Reproduction. 88:160–160.
Cui W, Zhang J, Lian H-Y, Wang H-L, Miao D-Q, Zhang C-X, Luo M-J, Tan J-H.  2012.  Roles of MAPK and Spindle Assembly Checkpoint in Spontaneous Activation and MIII Arrest of Rat Oocytes. PLoS ONE. 7:e32044.
Name Phone Office
Williams , Andrea Graduate Student, ABBS Program 413-545-0673 LSL S560F
Miao , Xiaosu (Sue) Ph.D. candidate, ABBS 413-545-0673 LSL S560F
Houh , Angela Undergraduate Research Assistant 413-545-0673 LSL S560F
Lee , Catherine Undergraduate Research Assistant 413-545-0673 LSL S560F
Schmidt , Annabelle Undergraduate Research Assistant 413-545-0673 LSL S560F
Sun , Tieqi Undergraduate Research Assistant 413-545-0673 LSL S560F
Former Lab Personnel

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