Somatic Cell Nuclear Transfer
Somatic Cell Nuclear Transfer - Related Videos
04:36
A Simple Microaspiration Technique for Isolating Somatic Cells from Cryopreserved Equine Semen as Nuclear Donors for Cloning
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2025
This protocol presents a simple microaspiration technique to isolate viable somatic cells (SCs) from cryopreserved equine semen. Unlike traditional approaches, this technique avoids long in vitro cultures and overcomes sperm contamination, enabling immediate use in somatic cell cloning.
14:17
Nuclear Transfer into Mouse Oocytes
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Cited by 7 •
2006
This movie and the protocol are intended to help learning nuclear transfer.
09:52
Combinational Treatment of Trichostatin A and Vitamin C Improves the Efficiency of Cloning Mice by Somatic Cell Nuclear Transfer
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Cited by 20 •
2018
We describe a dramatically improved method for mouse cloning using trichostatin A, vitamin C, and deionized bovine serum albumin. We show a simplified, reproducible protocol that supports efficient development of cloned embryos. Hence, this method could become a standardized procedure for mouse cloning.
07:06
Tissue Regeneration with Somatic Stem Cells
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2023
Somatic or adult stem cells, like embryonic stem cells, are capable of self-renewal but demonstrate a restricted differentiation potential. Nonetheless, these cells are crucial to homeostatic processes and play an important role in tissue repair. By studying and manipulating this cell population, scientist may be able to develop new regenerative therapies for injuries and diseases. This video first defines somatic stem cells, and then explores the role these cells play in tissue regeneration.
08:12
Assessing Somatic Hypermutation in Ramos B Cells after Overexpression or Knockdown of Specific Genes
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Cited by 5 •
2011
We describe how to perform retroviral or lentiviral infections of overexpression or shRNA-containing constructs in the human Ramos B-cell line and how to measure somatic hypermutation in these cells.
FAQs
After transfer into an enucleated egg, cellular factors from the egg reprogram the differentiated nucleus toward a pluripotent state. This change restores the nucleus’s ability to support embryonic development rather than restricting it to the specialized function of the original somatic cell. The reprogramming step is therefore central to whether SCNT can produce a developing embryo.
Enucleation removes the egg’s original nucleus so the transferred somatic nucleus supplies the nuclear genetic material. Activation then initiates the cellular processes needed for development and allows egg-associated factors to act on the transferred nucleus. If either step is unsuccessful, the reconstructed cell may not undergo the reprogramming and developmental progression required for embryo formation.
A differentiated somatic nucleus is associated with a specialized cellular state, while embryonic development requires broader developmental potential. SCNT must therefore reset that state sufficiently for pluripotency and subsequent development. The technique’s limited efficiency indicates that successful nuclear reprogramming does not occur reliably in every reconstructed embryo, constraining both research use and potential applications.
A typical workflow begins by removing the nucleus from an egg cell, introducing a nucleus from a differentiated somatic cell, and activating the reconstructed egg. The resulting embryo can then be assessed for development and, in some cases, considered for implantation. These stages connect nuclear replacement with reprogramming, embryonic development, and possible organismal development.
SCNT can produce genetically matched animal models for examining immune responses, host–pathogen interactions, and disease susceptibility. Such models provide a controlled context for relating genetic background to immune or infectious outcomes. Their value lies in supporting investigations of how an organism responds to infection and how susceptibility to disease may vary across experimental conditions.
Patient-matched cells may support investigations of immune disorders by providing cells linked to a particular patient’s genetic background. This can help researchers study disease-related cellular behavior without relying only on unrelated biological material. The approach remains constrained by the efficiency of SCNT and by ethical considerations surrounding nuclear transfer, embryo development, and related applications.