The onset of embryo-specific gene transcription, also known as embryonic genome activation (EGA), is a crucial step in the developmental journey of an organism. Although EGA has been studied to some extent in mice, human ...
Biotechnology
10 hours ago
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A research team headed by Prof. Jacob Hanna at the Weizmann Institute of Science has created complete models of human embryos from stem cells cultured in the lab—and managed to grow them outside the womb up to day 14. As ...
Cell & Microbiology
Sep 6, 2023
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In-vitro culture of biological cells plays an important role in advancing biological research. However, currently available cell culture materials have significant drawbacks. Many of them are derived from animal sources, ...
Bio & Medicine
Aug 15, 2023
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There are several parallel projects running across the world to save the northern white rhinoceros (Ceratotherium simum simum), one of Africa's captivating and iconic wildlife species. With the death of last male in 2018 ...
Plants & Animals
Aug 14, 2023
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Gastrulation, the process where an embryo reorganizes itself from a hollow sphere into a multilayered structure, is considered a "black box" of human development. This is because human embryos are typically not cultured for ...
Cell & Microbiology
Jul 20, 2023
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As a human embryo grows, a set of molecules directs cells as they multiply and take on specific identities and spatial positions within the embryo. In one crucial step known as gastrulation, these signaling molecules guide ...
Cell & Microbiology
Jul 17, 2023
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In a groundbreaking study, researchers have unlocked a new frontier in the fight against aging and age-related diseases. The study, conducted by a team of scientists at Harvard Medical School, has published the first chemical ...
Cell & Microbiology
Jul 13, 2023
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In humans, pregnancy lasts around nine months. In mice, only 20 days, and in rhinoceroses, as long as 17 months. Although many mammalian species go through the same stages during embryo development, the speed of development ...
Plants & Animals
Jun 20, 2023
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Researchers at Sana Biotechnology, Inc., in California, have made a significant breakthrough in realizing the promise of stem cell therapy: stem cells that do not trigger an immune response from an immunologically incompatible ...
Cedars-Sinai investigators, in collaboration with Axiom Space of Houston, are sending stem cells to space in early May to explore whether microgravity can make it easier and more efficient to produce large batches of stem ...
Cell & Microbiology
Apr 18, 2023
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Pluripotency in the broad sense refers to "having more than one potential outcome." In biological systems, this can refer either to cells or to biological compounds. From the Latin pluri=many, potent=power, capacity. A pluripotent cell can create all cell types except for extra embryonic tissue, unlike a totipotent cell, (tot=all), which can produce every cell type including extra embryonic tissue.
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