Search Results for: embryo models

Monkey human embryo chimera Cell paper: exciting, ethically complex direction

human embryo chimera

A new Cell paper from an international team led by Juan Carlos Izpisua Belmonte pushes human embryo chimera embryo research further than ever before. It is both exciting work and raises many complex bioethics questions at the same time. What is a human embryo chimera? By way of background, chimeric human embryos contain a mixture […]

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Weekly reads: embryo pubs stir things up, organoids crying, & more

organoids tear glands sm

This was an unusual week in that three papers in a sense collided together related to embryo production and growth, raising new research possibilities but also serious ethical questions. New research: what is an embryo & what is not? The first two Nature papers reported generating the most realistic models of human embryos from scratch

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New lab-grown blastoids are strikingly similar to human embryos

blastoids nature paper figure 2

A new word has been added to the lexicon of human stem cell research – blastoids, aka “blastocyst-like structures.” Unlike the familiar three-layered embryo that emerges during the third week of prenatal development, the earlier blastocyst resembles a fluid-filled soccer ball, with a smear of cells on the interior face destined to develop into the

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Do human Very Small Embryonic-Like Stem Cells (VSEL) exist as a normal population of actual stem cells?

Supposedly there is a type of normal adult stem cell that intrinsically possesses many of the same properties as embryonic stem cells (ESCs). No reprogramming needed. No blastocysts needed. These reportedly amazing cells, called Very Small Embryonic-Like Stem Cells (VSELs), can in theory be isolated from umbilical cord blood (UCB) or even bone marrow. Yet

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Weekly reads: stem cell therapy for vision loss, cancer self-experimentation, Slovenia, 14-day rule

limbal stem cell deficiency LSCD, stem cell therapy for vision loss

Is there a proven stem cell therapy for vision loss? When I started The Niche back in early 2010, one major area of hope was that there might one day be a stem cell therapy for vision loss or even blindness. Maybe even a cure for blindness. While we’re not there yet as a field,

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Weekly reads: hit pause on human life, CIRM pause, 23andMe data, blast from the past

Remember cryonics, the idea that you could hit pause on human life? This relies on the super-cold power of liquid nitrogen or some other ultra-freezing method. Apparently cryonics is still a thing and there are people with even just their heads frozen. A new story claims a different way to hit the pause button on

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Recommended reads: MSC analysis points to challenges, IPSC NKs kill liver cancer, turning white fat into brown

MSC single cell transcriptome, MSC

Mesenchymal stromal/stem cells or MSCs are widely used by unproven clinics, but MSC research also suggests real promise in specific areas. Clinics mainly use adipose MSCs (often called SVF) or bone marrow MSCs. However, umbilical cord MSC preparations are getting more popular too. Many questions swirl around the use of MSCs including what exactly are

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Recommended reads: CAR-T for Lupus, CRISPR vision, journal closures

CAR-T for Lupus

Can researchers use CAR-T for lupus? It’s always exciting when one’s home institution has an interesting new therapy in development.  Here at UC Davis Health, there has been an increasing stream of such encouraging trials in the pipeline. I’ve written before about the promising trial of stem cells for spina bifida. Now there’s news related

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20 stem cell & regenerative medicine predictions for 2024

Stem cell, crystal ball, predictions

Each year I make predictions for the stem cell and regenerative medicine field for the following year. Today’s prediction post is focused on what to expect in 2024. You can also see my stem cell predictions for 2023 and my grades on how I did. I also have made a video version of these predictions so please

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2023 stem cell predictions grades reflect wild year for regenerative medicine

stem cell predictions

Every year I make stem cell and regenerative medicine predictions. Looking at my predictions for 2023, they reflect a wild year but in many ways a good one overall. Below I have graded my 2023 predictions. Overall, my crystal ball gave solid results. Some of the predictions have been condensed to keep things concise, but you

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