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1.
<正>Stem cells have great potential for disease treatment and drug RD due to their proliferation and differentiation capabilities,especially for currently incurable diseases,construction of tissuesorgans,and body injury repair,etc.In the past few years,infertility has increased year by year,most of which cannot be cured currently.Whether stem cells can be a solution becomes a new concern of researchers.It is expected that stem cells can be induced in vitro to differentiate into germ cells,allowing patients to get healthy sperms or eggs through artifi cial methods.The breakthrough in this field may give rise to a new way of reproduction.1.Current status of international research Most somatic stem cells can only differentiate into specific cells for certain tissues.Although germline stem  相似文献   

2.
<正>Stem-cell technique has huge potential in diseases treatment.Current clinical trials of stem cells involve a wide range of diseases,including bacterial and fungal diseases,behavioral and psychiatric disorders,blood and lymphatic disease,cancers and other tumors,digestive diseases,heart and blood disorders,immune system diseases,oral and dental diseases,muscle,bone and cartilage diseases,neurological diseases,and reproduction-related diseases.1.Stem cells involve in the diagnosis and treatment of neoplastic diseases Cancer is one of the major diseases that threaten human life.Due to a lack of systematic understanding of its occurrence and development mechanism,there is no effective cure for it now.With the deepening research on stem cells,researchers found that some tumor cells are quite similar to stem cells.In 2001,Professor Weissman of  相似文献   

3.
<正>Germ cells have a unique ability to produce a new individual and are paramount for transmiting intact genome and appropriate epigenome from generation to generation.Primordial germ cells(PGCs),the irst germ cell population established in the embryo,undergo sequential epigenetic reprogramming to ensure the idelity of this transmission.Although the developmental and  相似文献   

4.
In this review,we focus on the conined water that exists in one-dimensional micro/nano composite structures,particularly inside biological nanochannels.Using these nanochannels as inspiration,we discuss a strategy for the design and construction of biomimetic smart nanochannels.Unique features of the inner surfaces of a nanochannel’s wall have similar properties to living systems.Importantly,the abiotic analogs have potential applications in,for example,sensing,energy conversion and iltering.  相似文献   

5.
<正>Generally,a nucleus-bearing cell has multiple chromosomes, to hold those double-helix chains called DNAs in different "baskets." All in all, the coding on the"eggs"–those chains–programs how the cell produces the biochemical molecules vital for its whole lifetime, and hence might deserve careful protection. The number of chromosomes varies across species:Human cells each have46 chromosomes, mice cells 40, fly cells 8, and rice cells 24.  相似文献   

6.
<正>Location matters-maybe not so much for a property as for a cell in an early mammal embryo.The position of a cell in the three-layer egg-cylinder like structure of an early mammal embryo decides what it will grow into-e.g.the heart,the gut or the brain,all of which will comprise the prospective animal body.But how does an embryonic tissue progenitor cell gradually lose its potential of developing into other types of cells?This remained largely unknown,until lately when an accurate mapping of the cell genealogy tracks the whole process in the early embryos and unravels the mechanisms underlying cell lineage determination in real time and space.  相似文献   

7.
A team of researchers at the Shanghai Institutes for Biological Sciences （SIBS）, CAS reported Oct .19 online in Nature the successful identificationof a long sought-after type of stem cells, the multipotent mammary stem cells （MaSCs） in mouse mammary gland, through a surface marker specifically expressed by this type of stem cells. This discovery settles a raging debate on the existence of multipotent MaSCs that can differentiate into all types of mammary epithelial cells, and moreover provides an ideal target for new drugs against breast cancers, especially a subtype that responds to no existing targeted therapy.  相似文献   

8.
正In adult tissues,stem cells are defined by their unique capacity to self-renew and produce nonequivalent daughters that can differentiate into cell lineages to maintain tissue homeostasis.Misregulation of stem cell functions has been implicated in a variety of human diseases such as degenerative diseases and cancer.Thus,understanding the regulatory mechanisms  相似文献   

9.
<正>Protein ion channels on a cell membrane generate action potentials for cellular signal transduction, and regulate biological activities during life. Since the discovery of the asymmetric ion transport phenomenon in quartz nanopipettes by Bard and colleagues [1], synthetic nanofluidic materials and devices have attracted a lot of research interests from the scientific community,  相似文献   

10.
As a research professor at the Guangzhou Institutes of Biomedicine and Health (GIBH), Chinese Academy of Sciences, Miguel Esteban is the first non-Chinese scientist to chair a major scientific research program in China. Born and educated in Spain and the UK, he worked in Madrid and London as a scholar and physician before joining GIBH in January 2008. Just two years after his arrival, in 2010, Professor Esteban was named by the Chinese Ministry of Science and Technology as the chief scientist of a five-year major research program on stem cell study with a grant up to 28 million yuan (about 4.4 million US dollars). The following is a brief interview between BCAS reporter XIN Ling and the Professor about his work and life in China.  相似文献   

11.
<正>On Nov 17~(th),a team of researchers from the Shanghai Institute of Biochemistry and Cell Biology(SIBCB),Shanghai Institutes for Biological Sciences,CAS led by Prof.LI Jinsong reports online in Cell Research a novel technique to induce from mice oocytes haploid embryonic stems cells(haESCs)that can fully replace the reproductive functions of sperms,greatly simplifying the otherwise complicated techniques to produce such stem cells and semi-cloned(SC)mice.It is anticipated that this will further facilitate research in the field of stem cells and embryonic development;in addition the study might also suggest some implications in genomic  相似文献   

12.
<正>Since the 20th century,technologies for outer space exploration have developed rapidly,but we still know little about the deep sea on Earth."We know even less about the deep sea than the Moon or Mars",Professor WANG Pinxian from the Chinese Academy of Science once remarked.It means that we are on a relatively low level of scientif ic research about the deep sea,but it also indicates a huge potential in the f ield.1.The manned deep-sea submersible will guide the development of deep-sea exploration technologies The deep-sea exploration technology is a complicated and integrated set of high technology that involve many ST disciplines and can provide methods and instruments for the scientif ic research and resources exploration of the deep sea.It can also promote the development of a variety of general technologies and equipment concerning deep sea exploration.The technology is an essential means to detect resources in the  相似文献   

13.
The science and technology (S&T) of resources and the environment are the indispensable groundwork for realizinga country’ssustainable socio-economicdevelopment and one of vital components in contemporaryscience and technology. Their research features includeimmensity in their research scope and involvement, com-plexity in the problems and issues they have to deal with,interdisciplinary cross-breeding and openness of researchsystems. China faces a lot of challenges and problematic…  相似文献   

14.
Life sciences &amp; bio-technology have a direct bearing on social development, economic growth,food security, the improvement of the people‘s health and living quality both in urban and rural areas. This article gives an analytic exposition of the nationwide strategic demands and current situation of S&amp;T growth, elucidating the competitive status and developmental dynamics of life sciences and bio-technology at CAS. Based on these, it suggests strategic steps for nurturing a leapfrog development in the aspects of disciplinary layout, construction of a research platform, talent-training etc.  相似文献   

15.
<正>The stern situation of the current outbreak of Ebola hemorrhagic fever has caught intensive attention from the leadership of CAS.With great concern,repeated instructions have been given,urging the CAS staff to actively provide ST support for emergency responses to potential invasion of this epidemic,drawing on its buildup in research on emerging and infectious diseases.  相似文献   

16.
<正>China’s rapid economic development combined with visionary long term strategy has led to the rapid emergence of a great scientiic establishment with innovative capacity.he last 15 years have witnessed a dramatic lit in Chinese research infrastructure for promoting excellent research and for cultivating young talents in science and technology.  相似文献   

17.
China＇s capacity for indigenous S＆T innovation is believed to have been hampered by its lack of homegrown research facilities. To address the problem, a pilot program for the research and development of major S＆T facilities has been launched at CAS. The kick-off meeting was held on 28 March in the CAS Technical Institute of Physics and Chemistry in Beijing.  相似文献   

18.
As one of the first Partner Groups which were initiated to foster scientific exchange and interaction between the Max Pianck Society (MPS) and the Chinese Academy of Sciences (CAS), the Partner Group led by Lu Ke was established on April 1, 1999.During the past five years, the group has received substantial support from the CAS for equipment and from the MPS for personnel and travel expenses. Extensive and productive collaborations between the research staff and students of the Partner Group with several professors (departments) in the Max Planck Institute for Metals Research (MPI-MF) have led to significant advances in synthesis,mechanical properties, melting and superheating of nanostructured metals. The research is well recognized internationally and a substantial number of publications in high quality, peer-reviewed journals (including Science and Physical Review Letters) have resulted.  相似文献   

19.
CAS researchers have been successful in their experimental entanglement of six photons in graph states: a "Schr(o)dinger cat" state, and a "cluster" state. By creating two important examples of such states, according to experts, the studies have paved the way for the research into the fundamental issues in quantum computing, quantum error correction and quantum mechanics.  相似文献   

20.
<正>On April 26,2014,Queen Margrethe II of Denmark attended the groundbreaking ceremony for the main building of the Sino-Danish Research Center for Education and Research(SDC)in suburban Beijing.It was a highlight of her five-day visit to China and an important milestone for the unique Sino-Danish initiative within education and research.Since SDC opened up for enrollment in 2012,approximately 250 students from China and Denmark have pursued their education at the center.With over 10,000 square meters of floor space,the building will comprise classrooms,reading rooms,a large lecture hall,a library and space for dining,socializing and  相似文献   

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