Exclusive: Two pigs engineered to have monkey cells born in China – New Scientist News

By Michael Le Page

Tang Hai

Pig-primate chimeras have been born live for the first time but died within a week. The two piglets, created by a team in China, looked normal although a small proportion of their cells were derived from cynomolgus monkeys.

This is the first report of full-term pig-monkey chimeras, says Tang Hai at the State Key Laboratory of Stem Cell and Reproductive Biology in Beijing.

The ultimate aim of the work is to grow human organs in animals for transplantation. But the results show there is still a long way to go to achieve this, the team says.

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Hai and his colleagues genetically modified cynomolgus monkey cells growing in culture so they produced a fluorescent protein called GFP. This enabled the researchers to track the cells and their descendents. They then derived embryonic stem cells from the modified cells and injected them into pig embryos five days after fertilisation.

More than 4000 embryos were implanted in sows. Ten piglets were born as a result, of which two were chimeras. All died within a week. In the chimeric piglets, multiple tissues including in the heart, liver, spleen, lung and skin partly consisted of monkey cells, but the proportion was low: between one in 1000 and one in 10,000.

It is unclear why the piglets died, says Hai, but because the non-chimeric pigs died as well, the team suspects it is to do with the IVF process rather than the chimerism. IVF doesnt work nearly as well in pigs as it does in humans and some other animals.

The team is now trying to create healthy animals with a higher proportion of monkey cells, says Hai. If that is successful, the next step would be to try to create pigs in which one organ is composed almost entirely of primate cells.

Something like this has already been achieved in rodents. In 2010, Hiromitsu Nakauchi, now at Stanford University in California, created mice with rat pancreases by genetically modifying the mice so their own cells couldnt develop into a pancreas.

In 2017, Juan Carlos Izpisua Belmontes team at the Salk Institute in California created pig-human chimeras, but only around one in 100,000 cells were human and, for ethical reasons, the embryos were only allowed to develop for a month. The concern is that a chimeras brain could be partly human.

This is why Hai and his team used monkey rather than human cells. But while the proportion of monkey cells in their chimeras is higher than the proportion of human cells in Belmontes chimeras, it is still very low.

Given the extremely low chimeric efficiency and the deaths of all the animals, I actually see this as fairly discouraging, says stem cell biologist Paul Knoepfler at the University of California, Davis.

He isnt convinced that it will ever be possible to grow organs suitable for transplantation by creating animal-human chimeras. However, it makes sense to continue researching this approach along with others such as tissue engineering, he says.

According to a July report in the Spanish newspaper El Pas, Belmontes team has now created human-monkey chimeras, in work carried out in China. The results have not yet been published.

While interspecies chimerism doesnt occur naturally, the bodies of animals including people can consist of a mix of cells. Mothers have cells from their children growing in many of their organs, for instance, a phenomenon called microchimerism.

Journal reference: Protein & Cell, DOI: 10.1007/s13238-019-00676-8

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Exclusive: Two pigs engineered to have monkey cells born in China - New Scientist News

BioRestorative Therapies Receives Patent in Israel For Its Metabolic Program – Yahoo Finance

MELVILLE, N.Y., Dec. 12, 2019 (GLOBE NEWSWIRE) -- BioRestorative Therapies, Inc. (BioRestorative or the Company) (BRTX), a life sciences company focused on stem cell-based therapies, today announced that the Israeli Patent Office has issued BioRestorative a Notice of Allowance on its patent application for a method of generating brown fat stem cells. This is the eighth patent issued, in the United States and other countries, for the Companys brown fat technology related to BioRestoratives metabolic program (ThermoStem Program).

Once issued in Israel, the final patent will allow for a method of isolating and differentiating a non-embryonic human brown adipose-derived stem cell into functional human brown adipocytes and a method of identifying compounds that modifies metabolic activity of human brown adipocytes. The technology is applicable for potential therapeutic uses for treating a wide range of degenerative and metabolic disorders, including but not limited to diabetes, obesity, hypertension and cardiac deficiency.

We continue to drive innovative and novel technology focusing on transformative therapies for our brown fat program, said Mark Weinreb, CEO of BioRestorative Therapies. We are pleased to add to our intellectual property library this recently issued patent by the Israeli Patent Office for our metabolic program to help power disruptive ways to treat metabolic disorders.

About BioRestorative Therapies, Inc.

BioRestorative Therapies, Inc. (www.biorestorative.com) develops therapeutic products using cell and tissue protocols, primarily involving adult stem cells. Our two core programs, as described below, relate to the treatment of disc/spine disease and metabolic disorders:

Forward-Looking Statements

This press release contains "forward-looking statements" within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended, and such forward-looking statements are made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. You are cautioned that such statements are subject to a multitude of risks and uncertainties that could cause future circumstances, events or results to differ materially from those projected in the forward-looking statements as a result of various factors and other risks, including, without limitation, whether the Company will be able to consummate the private placement and the satisfaction of closing conditions related to the private placement and those set forth in the Company's Form 10-K filed with the Securities and Exchange Commission. You should consider these factors in evaluating the forward-looking statements included herein, and not place undue reliance on such statements. The forward-looking statements in this release are made as of the date hereof and the Company undertakes no obligation to update such statements.

CONTACT:Email: ir@biorestorative.com

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BioRestorative Therapies Receives Patent in Israel For Its Metabolic Program - Yahoo Finance

Aspen Neuroscience launches with $6.5M seed funding to develop personalized and autologous cell therapy for Parkinson’s disease – TechStartups.com

Parkinsons disease is characterized by the loss of specific brain cells that make the chemical dopamine. Without dopamine, nerve cells cannot communicate with muscles and people are left with debilitating motor problems. Aspen is focusing on human pluripotent stem cells, cultured cells that can become any cell type in the human body. Many health technology startups are on the raise to cure this disease. At the forefront is Aspen Neuroscience, a healthtech startup developing first-of-its-kind personalized cell therapy for Parkinsons disease.

Aspen Neuroscience is a development stage, private biotechnology company that uses innovative genomic approaches combined with stem cell biology to deliver patient-specific, restorative cell therapies that modify the course of Parkinsons disease.

Today,Aspen Neuroscience announced its official launch with $6.5 million seed financingto develop the first autologous cell therapies for Parkinsons disease.The round was led by Domain Associates and Axon Ventures and including Alexandria Venture Investments, Arch Venture Partners, OrbiMed and others.

Aspens proprietary approach was developed by the companys co-founders, Jeanne F. Loring, Ph.D., Professor Emeritus and founding director of the Center for Regenerative Medicine at The Scripps Research Institute, and Andres Bratt-Leal, Ph.D., a former post-doctoral researcher in Dr. Lorings lab. The company was initially supported by Summit for Stem Cell, a founding partner and non-profit organization which provides a variety of services for people with Parkinsons disease. Aspen is led by industry veteran Howard J. Federoff, M.D., Ph.D., as Chief Executive Officer.

The companys research is specific to induced pluripotent stem cells (iPSCs), which it develops by taking a skin biopsy from a person with Parkinsons disease and turning the tissue into pluripotent stem cells using genetic engineering. Aspen then differentiates the pluripotent stem cells into dopamine-releasing neurons that can be transplanted into that same person (autologous), thereby restoring the types of neurons lost in Parkinsons disease.

As an autologous cell therapy for Parkinsons disease, Aspens treatment would eliminate the need for immunosuppression because the neurons are transplanted back into the same patient from which they were generated. The use of immunosuppression is necessary with currently available cell therapies for Parkinsons disease and when transplanting cells from one patient to another (allogeneic) to prevent rejection but can pre-dispose the patient to life-threatening complications including infection and add cost to the patient and health system. Aspen is the only company in the world offering an autologous neuron replacement therapy for Parkinsons disease.

Aspen encompasses a powerful executive leadership team including Dr. Federoff who, in addition to his leadership roles at the UC Irvine Health System, was the Executive Vice President for Health Sciences and the Executive Dean of Medicine at Georgetown University. Dr. Federoff also has significant biotech industry experience including co-founding MedGenesis Therapeutix and Brain Neurotherapy Bio, as well as leading the U.S. Parkinsons Disease Gene Therapy Study Group. The company is also proud to announce the addition of several experienced and well-known members to its leadership team including Edward Wirth, M.D., Ph.D., as Chief Medical Officer.

Dr. Wirth currently serves as the Chief Medical Ofcer for Lineage Cell Therapeutics where he oversees clinical development of its two therapeutic programs for spinal cord injuries and lung cancer. He received his M.D. and Ph.D. from the University of Florida in 1994 and remained to conduct postdoctoral research including leading the University of Florida team that performed the rst human embryonic spinal cord transplant in the U.S. Dr. Wirth went on to serve as the Medical Director for Regenerative Medicine at Geron Corporation where the worlds rst clinical trial of human embryonic stem cell (hESC)-derived product occurred which demonstrated initial clinical safety.

Drs. Federoff and Wirth are joined by Dr. Loring, as Chief Scientific Officer; Jay Sial, as Chief Financial Officer; Andres Bratt-Leal, Ph.D., as Vice President of Research and Development; Thorsten Gorba, Ph.D., as Senior Director of Manufacturing and Naveen M. Krishnan, M.D., M.Phil., as Senior Director of Corporate Development.

Aspen is developing a restorative, disease modifying autologous neuron therapy for people suffering from Parkinsons disease, said Dr. Federoff. We are fortunate to have such a high-caliber scientific and medical leadership team to make our treatments a reality. Our cell replacement therapy, which originated in the laboratory of Dr. Jeanne Loring and was later supported by Summit for Stem Cell and its President, Ms. Jenifer Raub, has the potential to release dopamine and reconstruct neural networks where no disease-modifying therapies exist.

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Aspen Neuroscience launches with $6.5M seed funding to develop personalized and autologous cell therapy for Parkinson's disease - TechStartups.com

Pig-Monkey Hybrid Chimeras Made By Scientists in China Dies! What is Chimera? Are There Human Chimeras? – LatestLY

Monkey Pig (Photo Credits: New Scientist)

Chinese scientists recently developed monkey-pig hybrids called chimera as a part of their research into the growth of human organs for transplantation in animals. Although they died within a week of being born, the piglets carried DNA from macaque monkeys in their heart, liver, spleen, lung and skin. The monkey-pigs were bred from more than 4,000 embryos that were implanted into a sow using IVF. Chimera is a single organism which carries cells with distinct genotypes. Animal chimeras are produced by merging multiple fertilised eggs. In this case, they contained DNA from individuals, a pig and a monkey. Human Chimeras also exist but are quite rare. They contain the cells of two or more individuals. Their bodies contain two different sets of DNA. Around 100 cases of chimerism have been recorded in the modern medical literature.First Monkey-Pig Chimeras Created by Chinese Scientists, Die Within a Week (See Picture)

While chimera is today used to refer to a hybrid variety of animals or to about an impossible thing, the word has a reference in Greek mythology. According to which, chimera is a fantastical beast made from different animals. It is named after a fire-breathing monster which had the head of a lion, the body of a goat and serpent's tail. Chimera is also the Greek term for a female goat.

To create pig-primate chimeras, Tang Hai, a researcher at the State Key Laboratory of Stem Cell and Reproductive Biology in Beijing and his co-authors first grew cells from cynomolgus monkeys (Macaca fascicularis) in lab dishes. The altered the cell's DNA by inserting instructions to build a fluorescent protein that made the cells bright green in colour. These luminescent cells gave rise to radiant embryonic stem cells which were then injected into pig embryos. These glowing spotshelped researchers to track the monkey cells as the embryos grew into piglets in due time.

In total, 4,000 embryos received an injection of monkey cells. The pigs bore 10 piglets but only two of them grew into both pig and monkey cells. The team found monkey cells scattered throughout multiple organs, including the heart, liver, spleen, lungs and skin. It was that in each organ, between one in 1,000 and one in 10,000 cells turned out to be monkey cells which were they were 99 percent pigs.

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Pig-Monkey Hybrid Chimeras Made By Scientists in China Dies! What is Chimera? Are There Human Chimeras? - LatestLY

First Pig-Monkey Chimeras Were Just Created in China – Livescience.com

Two piglets recently born in China look like average swine on the outside, but on the inside, they are (a very small) part monkey.

A team of researchers generated the pig-primate creatures by injecting monkey stem cells into fertilized pig embryos and then implanting them into surrogate sows, according to a piece by New Scientist. Two of the resulting piglets developed into interspecies animals known as chimeras, meaning that they contained DNA from two distinct individuals in this case, a pig and a monkey.

"This is the first report of full-term pig-monkey chimeras," co-author Tang Hai, a researcher at the State Key Laboratory of Stem Cell and Reproductive Biology in Beijing, told New Scientist. Eventually, Hai and his colleagues aim to grow human organs in animals for use in transplant procedures. For now, the team plans to stick with monkey cells, as developing human-animal chimeras presents a slew of "ethical issues," the authors noted in a report published Nov. 28 in the journal Protein & Cell.

To create pig-primate chimeras, Hai and his co-authors first grew cells from cynomolgus monkeys (Macaca fascicularis) in lab dishes. The team then altered the cells' DNA by inserting instructions to build a fluorescent protein, which caused the cells to glow a bright green. These luminescent cells gave rise to equally radiant embryonic stem cells, which the researchers then injected into prepared pig embryos. These glowing spots allowed the researchers to track the monkey cells as the embryos grew into piglets.

Related: The 9 Most Interesting Transplants

In total, 4,000 embryos received an injection of monkey cells and were implanted in surrogate sows. The pigs bore 10 piglets as a result of the procedure, but only two of the offspring grew both pig and monkey cells. By scanning for spots of fluorescent green, the team found monkey cells scattered throughout multiple organs, including the heart, liver, spleen, lungs and skin.

In each organ, between one in 1,000 and one in 10,000 cells turned out to be a monkey cells in other words, the interspecies chimeras were more than 99% pig.

Although low, the ratio of monkey to pig cells still outnumbered the maximum amount of human cells ever grown in a human-animal chimera. In 2017, scientists created human-pig chimeras that grew only one human cell for every 100,000 pig cells. The interspecies embryos were only allowed to develop for a month for ethical reasons, including the concern that humans cells might grow in the chimera's brain and grant the animal human-like consciousness, according to New Scientist.

Despite these ethical qualms, the same team of researchers went on to create human-monkey chimeras earlier this year, according to a July report from the Spanish newspaper El Pas. The results of the controversial experiment have not yet been reported, but the scientists said that no human-primate embryos were allowed to develop for more than a few weeks, the paper reported.

Hai and his co-authors may have avoided the ethical issues involved with human-animal chimeras, but one expert wasn't impressed with their interspecies piglets. Stem-cell biologist Paul Knoepfler of the University of California, Davis, told New Scientist that the low ratio of monkey to pig cells seems "fairly discouraging." Additionally, the two chimeras and all eight other piglets died shortly after being born, he noted.

The exact reason for the piglets' death remains "unclear," Hai told New Scientist, but he said that he suspects the deaths are linked to the in vitro fertilization (IVF) procedure rather than the injection of monkey DNA. Other scientists have also found that IVF doesn't consistently work in pigs, according to a 2019 report in the journal Theriogenology.

In the immediate future, Hai and his colleagues aim to increase the proportion of monkey cells to pig cells in future chimeras, and eventually, grow entire monkey organs in their pigs, Hai told New Scientist. In their paper, the authors noted that their work in pigs could help "pave the way" toward the "ultimate goal of human organ reconstruction in a large animal."

Originally published on Live Science.

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First Pig-Monkey Chimeras Were Just Created in China - Livescience.com

Pig-Monkey Chimeras Have Been Brought to Term For The First Time – ScienceAlert

Pigs engineered to have a small amount of monkey cells have been brought to full term and were even born alive, surviving for a few days after birth. Although the piglets died, it is claimed the experiment - performed in China - marks a major milestone for the future of lab-grown organs.

"This is the first report of full-term pig-monkey chimeras," Tang Hai of the State Key Laboratory of Stem Cell and Reproductive Biology in Beijing told New Scientist.

The research is part of an ongoing effort to develop animals - whether they are sheep or pigs - that can grow human organs we could then harvest for transplants, a process called xenogeneic organogenesis.

Research has been done on both pig and sheep embryos with transplanted human stem cells; in both cases, the embryos continued to develop until the experiment was deliberately terminated.

That's because, due to ethical concerns, these chimeras - organisms that incorporate the genetic material of another species - cannot be cultivated or studied in the later stages of embryonic development. Some scientists worry that some of the human stem cellscould end upin other parts of the animal or even in its brain, with unintended consequences.

For that reason, in this experiment the team used stem cells from crab-eating macaques (Macaca fascicularis). These were imbued with fluorescent proteins so that they would glow under fluorescent light, and derived to produce fluorescing embryonic cells.

These cells were then injected into over 4,000 five-day-old pig embryos fertilised using IVF; the modified pig embryos were subsequently implanted into sows.

This fiddly and painstaking work produced just 10 piglets that made it to full term and were born alive. And only two of these were chimeric, with between one in 1,000 and one in 10,000 functional monkey cells to pig cells.

The monkey cells had migrated to the heart, liver, lungs, spleen and skin of the piglet hosts, but were not found in other organs, such as testes and ovaries, due to the low rate of chimerism, the researchers said.

Sadly, before a week was out, the piglets died - not just the two chimeras, but the other eight normal piglets, too. Because all the pigs died, Hai told New Scientist, the cause of death likely had less to do with chimerism, and more to do with IVF - a procedure that is notoriously tricky in pigs.

The low chimerism rate is also somewhat discouraging. However, the researchers remain optimistic. Although the birth rate was low, and the pigs didn't survive, the team now has a wealth of data they can apply to future experiments.

The scientists are planning to try again, increasing the chimeric cell ratio. And they believe their data may help other scientists working in the field.

"Here, we have used monkey cells to explore the potential of reconstructing chimeric human organs in a large animal model," they wrote in their paper.

"We believe this work will facilitate the development of xenogeneic organogenesis by providing a better understanding of the processes of xenogeneic recognition, fate determination, and the proliferation and differentiation of primate stem cells during porcine development.

"The findings could pave the way toward overcoming the obstacles in the re-engineering of heterogeneous organs and achieve the ultimate goal of human organ reconstruction in a large animal."

The research has been published in Protein & Cell.

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Pig-Monkey Chimeras Have Been Brought to Term For The First Time - ScienceAlert

PHATED to be: Yale researchers give shape to big data – Yale News

Scientists now have the ability to collect massive amounts of data on lifes most fundamental processes, such as the intricate choreography whereby a handful of embryonic stem cells give rise to trillions of specialized cells throughout the human body. But data doesnt always translate into knowledge unless the relationship of recorded data points can be presented in accurate, meaningful and visible ways.

The lab of Yales Smita Krishnaswamy, associate professor of genetics and computer science, has developed a new algorithm called PHATE that overcomes many of the shortcomings of existing data visualization tools, which are more susceptible to noise and distortion in the relationship of data points.

The panel above shows how PHATE visualizes the differentiation of human embryonic stem cells into neuronal cells, neural stem cells, cardiac cells, and endothelial cells, as compared to the visualizations created by three other technologies.A cleaner, more detailed representation is helpful, for example, for generating promising new hypotheses.

The researchers work is described Dec. 3 in the journal Nature Biotechnology.

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PHATED to be: Yale researchers give shape to big data - Yale News

Cell Harvesting Market a compound annual growth rate (CAGR) of 11.3% for the period of 2018-2023 – Crypto News Byte

Theglobal market for cell harvestingshould grow from $885 million in 2018 to reach $1.5 billion by 2023 at a compound annual growth rate (CAGR) of 11.3% for the period of 2018-2023.

Report Scope:

The scope of the report encompasses the major types of cell harvesting that have been used and the cell harvesting technologies that are being developed by industry, government agencies and nonprofits. It analyzes current market status, examines drivers on future markets and presents forecasts of growth over the next five years.

The report provides a summary of the market, including a market snapshot and profiles of key players in the cell harvesting market. It provides an exhaustive segmentation analysis of the market with in-depth information about each segment. The overview section of the report provides a description of market trends and market dynamics, including drivers, restraints and opportunities. it provides information about market developments and future trends that can be useful for organizations, including wholesalers and exporters. It provides market positionings of key players using yardsticks of revenue, product portfolio, and recent activities. It further includes strategies adopted by emerging market players with strategic recommendations for new market entrants. Readers will also find historical and current market sizes and a discussion of the markets future potential. The report will help market players and new entrants make informed decisions about the production and exports of goods and services.

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Report Includes:

41 data tables and 22 additional tables Description of segments and dynamics of the cell harvesting market Analyses of global market trends with data from 2017, 2018, and projections of compound annual growth rates (CAGRs) through 2023 Characterization and quantification of market potential for cell harvesting by type of harvesting, procedure, end user, component/equipment and region A brief study and intact information about the market development, and future trends that can be useful for the organizations involved in Elaboration on the influence of government regulations, current technology, and the economic factors that will shape the future marketplace Key patents analysis and new product developments in cell harvesting market Detailed profiles of major companies of the industry, including Becton, Dickinson and Co., Corning, Inc., Fluidigm Corp., General Electric Co., Perkinelmer, Inc., and Thermo Fisher Scientific, Inc.

Summary

Stem cells are unspecialized cells that have the ability to divide indefinitely and produce specialized cells. The appropriate physiological and experimental conditions provided to the unspecialized cells give rise to certain specialized cells, including nerve cells, heart muscle cells and blood cells. Stem cells can divide and renew themselves over long periods of time. These cells are extensively found in multicellular organisms, wherein mammals, there are two types of stem cells embryonic stem cells and adult stemcells. Embryonic stem cells are derived from a human embryo four or five days old that is in the blastocyst phase of development. Adult stem cells grow after the development of the embryo and are found in tissues such as bone marrow, brain, blood vessels, blood, skin, skeletal muscles and liver. Stemcell culture is the process of harvesting the exosomes and molecules released by the stem cells for the development of therapeuticsfor chronic diseases such as cancer and diabetes. The process is widely used in biomedical applications such as therapy, diagnosis and biological drug production. The global cell harvesting market is likely to witness a growth rate of REDACTED during the forecast period of 2018-2023.The value of global cell harvesting market was REDACTED in 2017 and is projected to reach REDACTED by 2023. Market growth is attributed to factors such as increasing R&D spending in cell-based research,the introduction of 3D cell culture technology, increasing government funding, and the growing prevalence of chronic diseases such as cancer and diabetes.

The growing incidence and prevalence of cancer is seen as one of the major factors contributing to the growth of the global cell harvesting market. According to the World Health Organization (WHO), cancer is the second-leading cause of mortality globally and was responsible for an estimated 9.6 million deaths in 2018. Therefore, there is an increasing need for effective cancer treatment solutions globally. Cell harvesting is the preferred method used in cancer cell-related studies including cancer cell databases (cancer cell lines), and other analyses and drug discovery in a microenvironment. The rising prevalence of such chronic diseases has led governments to provide R&D funding to research institutes and biotechnology companies to develop advanced therapeutics. Various 3D cell culture technologies have been developed by researchers and biotechnology companies such as Lonza Group and Thermo Fischer Scientific for research applications such as cancer drug discovery. The application of cell culture in cancer research is leading to more predictive models for research, drug discovery and regenerative medicine applications.

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Platelet-rich plasma (PRP) therapy, a new biotechnology solution that has a heightened interest among researchers in tissue engineering and cell-based therapies, has various applications in the treatment of tissue healing in tendinopathy, osteoarthritis and muscle injury. It has been conventionally employed in orthopedics, maxillofacial surgery, periodontal therapy and sports medicines. PRP therapy can be used in the treatment of fat grafting, acne scars, and hair regrowth.

Major factors driving market growth include increasing healthcare costs and the high rate of adoption for modern medicines in emerging economies such as China and India. It has been estimated that India will witness a CAGR of REDACTED in the cell harvesting market during the forecast period. The active participation of foreign pharmaceutical companies has tapped the Indian healthcare sector with a series of partnerships and mergers and acquisitions, which in turn is positively impacting the growth of the market in this region. Consistent development and clinical trials for stem cell therapies, plus contribution from the government and private sectors through investments and cohesive reimbursement policies in the development of cancer biomarkers, is further fueling market growth. InSweden, a research team at Lund University has developed a device to collect fluid and harvest stem mesenchymal stem cells (MSCs). The device is developed with 3D-printed bio-inert plastics which, when used by doctors, can result in the safe extraction of fluids (medical waste) from the patients body. The liquid is then passed through a gauze filter for purifying thoroughly and MSCs are separated from the fluid by centrifugation and are grown in culture.

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Cell Harvesting Market a compound annual growth rate (CAGR) of 11.3% for the period of 2018-2023 - Crypto News Byte