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#Embryonic Stem Cell

Nature.com

Neuronal mitochondrial dysfunction in sporadic amyotrophic lateral sclerosis is developmentally regulated

Amyotrophic lateral sclerosis is an adult-onset neurodegenerative disorder characterized by loss of motor neurons. Mitochondria are essential for neuronal survival but the developmental timing and mechanistic importance of mitochondrial dysfunction in sporadic ALS (sALS) neurons is not fully understood. We used human induced pluripotent stem cells and generated a developmental timeline by differentiating sALS iPSCs to neural progenitors and to motor neurons and comparing mitochondrial parameters with familial ALS (fALS) and control cells at each developmental stage. We report that sALS and fALS motor neurons have elevated reactive oxygen species levels, depolarized mitochondria, impaired oxidative phosphorylation, ATP loss and defective mitochondrial protein import compared with control motor neurons. This phenotype develops with differentiation into motor neurons, the affected cell type in ALS, and does not occur in the parental undifferentiated sALS cells or sALS neural progenitors. Our work demonstrates a developmentally regulated unifying mitochondrial phenotype between patient derived sALS and fALS motor neurons. The occurrence of a unifying mitochondrial phenotype suggests that mitochondrial etiology known to SOD1-fALS may applicable to sALS. Furthermore, our findings suggest that disease-modifying treatments focused on rescue of mitochondrial function may benefit both sALS and fALS patients.
HEALTH
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marijuanaparty.fun

With over 280 therapies under evaluation, the stem cell therapy

With multiple approved products, the field of stem cell therapies has gained substantial momentum over the last decade; several innovator companies are currently progressing their proprietary therapy candidates with cautious optimism. In fact, recent studies suggest that mesenchymal stem cells have the potential to end the Coronavirus (COVID-19) pandemic. Roots...
HEALTH
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TRENDING TOPICS
Medagadget.com

Cell Banking Outsourcing Market Overall Study in Choice of New Parents to Store such Cells for Future use

The method of reproducing and depositing neurons for potential use is known as cell banking. These cell samples can be kept indefinitely for use in research and surgical reconstruction of broken body structures. Cells are frozen in cryovials at -196 degrees Celsius using cryoprotection agents like DMSO (10%) solution. The most prevalent application of cell banking is in stem cell research and therapy. Master cell banks and working cell banks are two different types of cell banks. Working cell banks are formed by expanding master cell banks. Working cell banks include thawed cells that are duplicated in cultured cells, while master cell banks have pure cells from which cells are duplicated.
MARKETS
Nature.com

A CRISPR knockout screen reveals new regulators of canonical Wnt signaling

The Wnt signaling pathways play fundamental roles during both development and adult homeostasis. Aberrant activation of the canonical Wnt signal transduction pathway is involved in many diseases including cancer, and is especially implicated in the development and progression of colorectal cancer. Although extensively studied, new genes, mechanisms and regulatory modulators involved in Wnt signaling activation or silencing are still being discovered. Here we applied a genome-scale CRISPR-Cas9 knockout (KO) screen based on Wnt signaling induced cell survival to reveal new inhibitors of the oncogenic, canonical Wnt pathway. We have identified several potential Wnt signaling inhibitors and have characterized the effects of the initiation factor DExH-box protein 29 (DHX29) on the Wnt cascade. We show that KO of DHX29 activates the Wnt pathway leading to upregulation of the Wnt target gene cyclin-D1, while overexpression of DHX29 inhibits the pathway. Together, our data indicate that DHX29 may function as a new canonical Wnt signaling tumor suppressor and demonstrates that this screening approach can be used as a strategy for rapid identification of novel Wnt signaling modulators.
SCIENCE
articleted.com

What Should You Know About Osteoarthritis Stem Cell Treatment?

As a result, they've been dubbed "miracle treatments" for any disease requiring the replacement of dead or worn-out tissue. Furthermore, they produce signalling chemicals that urge mature cells to proliferate and repair wounds. There are a variety of stem cell sources, including:. • Embryonic stem cells generated from the early...
Nature.com

Generalized and scalable trajectory inference in single-cell omics data with VIA

Inferring cellular trajectories using a variety of omic data is a critical task in single-cell data science. However, accurate prediction of cell fates, and thereby biologically meaningful discovery, is challenged by the sheer size of single-cell data, the diversity of omic data types, and the complexity of their topologies. We present VIA, a scalable trajectory inference algorithm that overcomes these limitations by using lazy-teleporting random walks to accurately reconstruct complex cellular trajectories beyond tree-like pathways (e.g., cyclic or disconnected structures). We show that VIA robustly and efficiently unravels the fine-grained sub-trajectories in a 1.3-million-cell transcriptomic mouse atlas without losing the global connectivity at such a high cell count. We further apply VIA to discovering elusive lineages and less populous cell fates missed by other methods across a variety of data types, including single-cell proteomic, epigenomic, multi-omics datasets, and a new in-house single-cell morphological dataset.
SCIENCE
WebMD

What Is Stem Cell Research?

Stem cells can multiply or make more of themselves. They can also turn into specialized cells that make up your blood, brain, muscles, bones, and more. Researchers study them to learn if these basic building blocks of life can help unlock new medical treatments. They can also shed light on why certain health conditions and diseases happen.
CANCER
nysenasdaqlive.com

Global Stem Cell Banking Market 2020 – CCBC, CBR, ViaCord, Esperite, Vcanbio

The Stem Cell Banking Market reached xx USD million in 2019 and is anticipated grow at a CAGR of xx% over the forecast period 2019 to 2026. The business intelligence study of the Stem Cell Banking Market covers the estimation size of the market both in terms of value (million/billion USD) and volume (x units). In a bid to recognize the growth prospects in the Stem Cell Banking Market, the market study has been geographically fragmented into important regions that are progressing faster than the overall market.
MARKETS
cell.com

Statistically derived geometrical landscapes capture principles of decision-making dynamics during cell fate transitions

Quantified effect of signaling on fate decisions in an in vitro differentiation system. Constructed a Waddingtonian-like dynamical landscape model from the quantitative data. Identified two fundamentally distinct types of binary cell fate decisions. •. Landscape recapitulated experimental data and predicted new experimental outcomes. Summary. Fate decisions in developing tissues involve...
SCIENCE
Nature.com

Synthetic essentiality between PTEN and core dependency factor PAX7 dictates rhabdomyosarcoma identity

PTEN promoter hypermethylation is nearly universal and PTEN copy number loss occurs in ~25% of fusion-negative rhabdomyosarcoma (FN-RMS). Here we show Pten deletion in a mouse model of FN-RMS results in less differentiated tumors more closely resembling human embryonal RMS. PTEN loss activated the PI3K pathway but did not increase mTOR activity. In wild-type tumors, PTEN was expressed in the nucleus suggesting loss of nuclear PTEN functions could account for these phenotypes. Pten deleted tumors had increased expression of transcription factors important in neural and skeletal muscle development including Dbx1 and Pax7. Pax7 deletion completely rescued the effects of Pten loss. Strikingly, these Pten;Pax7 deleted tumors were no longer FN-RMS but displayed smooth muscle differentiation similar to leiomyosarcoma. These data highlight how Pten loss in FN-RMS is connected to a PAX7 lineage-specific transcriptional output that creates a dependency or synthetic essentiality on the transcription factor PAX7 to maintain tumor identity.
HEALTH
analystratings.com

Noble Financial Keeps a Buy Rating on Lineage Cell Therapeutics (LCTX)

Noble Financial analyst Robert LeBoyer reiterated a Buy rating on Lineage Cell Therapeutics (LCTX – Research Report) today and set a price target of $8.00. The company’s shares closed last Wednesday at $2.48. According to TipRanks.com, LeBoyer is a 5-star analyst with an average return of 46.3% and a 51.9%...
STOCKS
frontlinegenomics.com

Evolution of cloning: A Dolly good show!

My first real memories of cloning came from a film by one of my favourite childhood bands S Club 7. In the film, Seeing Double, the band – as you can guess – are cloned by an ‘evil’ scientist (the classic scenario) who aims to take over the world with his army of famous clones. My fondness of the film is mostly due to the catchy songs and dance breaks – but in its simplistic nature it demonstrated the concept of cloning. In more recent years, I actually bumped into one of the members of the band in a club – to this day, I am not sure if it was the real person or their clone…
MOVIES
newsrnd.com

Eternal life: Jeff Bezos invests in a startup investigating how to stop aging

Amazon founder Jeff Bezos and Yuri Milner, a billionaire who spends his earnings on investing in high-tech projects, joined forces to fund research at. discover a way to reverse aging. and achieve eternal life. . The startup would focus on studying cell reprogramming, which consists of. incorporating special proteins into...
SCIENCE
Medagadget.com

Global Stem Cell Market Size To Grow USD 29028 Million By 2026

Global Stem Cell Market Size & CAGR (2021 to 2026) The global stem cell market was valued at USD 16 166 million in 2021 and is expected to reach USD 29,028 million by the end of 2026, increasing at a CAGR of 12.42% during the projected period. Impact of COVID-19...
MARKETS
ideahuntr.com

Unity of Physical and Biochemical Cues Creates Healthy Organisms

New TU Dresden research group aims to uncover how stem cells respond to mechanical forces and electrical cues during the development and maintenance of the nervous and cardiovascular system. Dr. Adele Doyle, Assistant Professor at the University of California, Santa Barbara, USA, joined the Cluster of Excellence Physics of Life...
SCIENCE
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