Heterologous Ivf
Heterologous Ivf - Related Videos
11:42
Bottlenose Dolphin (Tursiops truncatus) Spermatozoa: Collection, Cryopreservation, and Heterologous In Vitro Fertilization
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Cited by 8 •
2017
Here, we present protocols that have been successfully used for dolphin spermatozoa collection, cryopreservation, and heterologous IVF performance using bovine oocytes.
04:55
Assaying Surface Expression of Chemosensory Receptors in Heterologous Cells
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Cited by 6 •
2011
Here we demonstrate a protocol to carry out live cell staining that can be used to detect odorant receptors on the surface of HEK293T cells conveniently. In addition, it may also be used to assay for surface expression of other chemosensory receptors or GPCRs.
10:41
The Logic, Experimental Steps, and Potential of Heterologous Natural Product Biosynthesis Featuring the Complex Antibiotic Erythromycin A Produced Through E. coli
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Cited by 4 •
2013
The heterologous biosynthesis of erythromycin A through E. coli includes the following experimental steps: 1) genetic transfer; 2) heterologous reconstitution; and 3) product analysis. Each step will be explained in the context of the motivation, potential, and challenges in producing therapeutic natural products using E. coli as a surrogate host.
06:24
Generic Protocol for Optimization of Heterologous Protein Production Using Automated Microbioreactor Technology
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Cited by 9 •
2017
This manuscript describes a generic approach for tailor-made design of microbial cultivation media. This is enabled by an iterative workflow combining Kriging-based experimental design and microbioreactor technology for sufficient cultivation throughput, which is supported by lab robotics to increase reliability and speed in liquid handling media preparation.
04:47
Measuring Transcellular Interactions through Protein Aggregation in a Heterologous Cell System
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Cited by 1 •
2020
Here, we present an optimized protocol to rapidly and semiquantitatively measure ligand-receptor interactions in trans in a heterologous cell system using fluorescence microscopy.
FAQs
Compatibility is first tested at the zona pellucida, the protective layer surrounding the oocyte. Sperm must recognize and bind to this layer before penetrating it, and the acrosome reaction supports that penetration. If cross-species molecular matching is insufficient, sperm may fail before reaching the oocyte membrane, revealing an early reproductive barrier.
Membrane fusion is a later compatibility checkpoint after sperm interaction with the zona pellucida and the acrosome reaction. Successful fusion brings the gamete membranes together so the oocyte can respond to sperm entry. Comparing whether fusion occurs across different pairings helps identify reproductive barriers that act after zona penetration rather than at initial sperm binding.
Oocyte activation indicates that sperm entry has triggered the developmental response required for further progression. In heterologous IVF, failure to activate can show that compatibility breaks down even after binding, penetration, or membrane fusion. Observing this stage therefore helps separate early gamete-recognition barriers from later limitations affecting the start of embryonic development.
Researchers can follow a sequence of observable events: sperm binding to the zona pellucida, penetration associated with the acrosome reaction, membrane fusion, and oocyte activation. Evaluating these stages separately shows where compatibility is lost. The resulting pattern provides more precise evidence than recording fertilization as only a successful or unsuccessful endpoint.
Heterologous IVF is useful when researchers need experimental evidence about why reproduction remains limited between biological groups. Different sperm and oocyte pairings can reveal whether isolation arises during gamete recognition, zona penetration, membrane fusion, or oocyte activation. These comparisons connect cellular fertilization events with the broader mechanisms that maintain reproductive boundaries.
In developmental biology, the approach links molecular gamete interactions with the earliest steps of embryonic development. Its results can identify factors that determine whether an oocyte begins development after cross-source fertilization. The same evidence may inform conservation strategies by clarifying reproductive compatibility and showing which biological boundaries could constrain assisted reproduction efforts.