Research reveals super-enhancers play crucial roles in both healthy cell regulation and disease, with mutations associated with diseases occurring in these regions. The discovery may lead to the development of personalized medicine approaches for cancer treatment and diagnosis.
Scientists have redefined the MECP2 protein's role in Rett syndrome, discovering it acts as a global activator rather than repressor. This new understanding can lead to novel therapies for the disease, targeting the AKT/mTOR pathway to reverse symptoms.
Researchers have discovered a key role for the follistatin/activin-1-2 switch in regulating regeneration in planarian flatworms. The more severe the tissue loss, the higher the expression of follistatin, which inhibits activin proteins and allows regeneration to begin.
Researchers at Whitehead Institute have developed a method to create conditional mutant mice using CRISPR/Cas, accelerating the process from years to weeks. This allows scientists to model diseases and study gene function with more efficiency.
Researchers at Whitehead Institute developed a new gene regulation system called CRISPR-on, which can activate multiple genes concurrently and precisely control their expression levels. The system has been shown to be effective in both mouse and human cells as well as in mouse embryos.
Researchers at Whitehead Institute created mouse models of two neurodegenerative diseases that are fatal in humans. The highly accurate reproduction of disease pathology seen with these models should advance the study of prion diseases, including Creutzfeldt-Jakob disease and fatal familial insomnia.
Researchers have identified muscle cells as the primary source of positional control in regenerating planarians, enabling them to respond to wounds and regenerate missing tissues. This discovery opens new avenues for understanding regeneration and could potentially inform treatments for human injuries and diseases.
Researchers tracked the movement of specialized cells to shed light on the immune system's response to invading pathogens. The study found that T follicular helper cells continually move between germinal centers within lymph nodes, potentially enhancing antibody production.
A groundbreaking study reveals that nearly 340 genes on the X chromosome contribute to sperm production, surprising scientists who once viewed it as a stable and unchanging chromosome. The research, published in Nature Genetics, uses advanced sequencing methods to assemble the first accurate reference sequence of the human X chromosome.
Researchers Tomomi Kiyomitsu and Iain Cheeseman discovered that human cells use the dynein motor to align their mitotic spindle structure, which is then corrected by cell membrane elongation. This process allows for symmetric cell division in about 95% of cells, resulting in identical daughter cells.
Researchers have identified a new therapeutic target by linking protein translation to heat shock response in cancer cells, which slows tumor growth and makes drug-resistant tumors vulnerable to other therapies. A compound called Rohinitib disrupts this link, normalizing metabolism and killing cancer cells.
Researchers found that Nanog is expressed similarly to other pluripotency markers, contradicting previous findings. This discovery could lead to reconsideration of the role of Nanog in differentiating embryonic stem cells.
Researchers found that ZEB1 gene enables basal-type breast cancer cells to convert into aggressive tumor-forming cancer stem cells. Luminal breast cancer cells, which are less aggressive, carry the gene but have it permanently shut down.
Researchers at Whitehead Institute have identified a protein that is the target of glucocorticoids, which increase red blood cell production in patients with certain types of anemia. The discovery could lead to the development of drugs capable of increasing this protein's production without causing severe side effects.
Scientists at Whitehead Institute have developed a new method for creating genetically altered mice using the CRISPR/Cas technique, which can produce mice with multiple mutations in just three to four weeks. This breakthrough enables the study of human diseases in mice more efficiently and cost-effectively.
Researchers found a few hundred super-enhancers control key genes in healthy cells, but cancer cells create their own to overproduce harmful oncogenes leading to aggressive tumors.
A team of scientists has identified a prion that triggers epigenetic changes in yeast, leading to the adoption of a multicellular structure for improved survival. This finding suggests that prions may play a role in beneficial traits and could have implications for understanding human diseases such as cancer.
Researchers at Whitehead Institute have identified long noncoding RNAs as essential regulators of white fat cell development, which can lead to obesity. The study found that knocking down specific lncRNAs reduced the formation of lipid droplets in fat cells.
A recent study published in PNAS reveals that DNA transcription produces mRNA and long noncoding RNA (lncRNA) pairs, which are transcribed coordinately as stem cells differentiate into other cell types. The finding could redefine our understanding of gene organization and regulation.
Researchers identify nearly 50 individuals with publicly available genetic data, highlighting potential breaches of privacy in genomics studies. The study's findings emphasize the need for better security algorithms and policy guidelines to mitigate risks associated with sharing genetic information.
Researchers at Whitehead Institute developed a method called sortagging, which uses the bacterial enzyme sortase A to modify antibodies to carry various payloads. This approach allows for highly targeted and potent responses from immune cells, potentially aiding in vaccine development.
Whitehead Institute researchers identify Rag GTPases as key mechanistic regulators of autophagy, a process to break down internal energy sources. Rag GTPase's continuous activity leads to permanent activation of mTORC1, resulting in nutritional crisis and death in newborn mammals.
Researchers identified a transporter molecule on the surface of cancer cells that can take in a toxic substance, allowing it to kill cancer cells. This discovery could lead to more targeted and effective cancer treatments.
Whitehead scientists found that traditional approaches ignore differences in mRNA amounts between cells, which can lead to misinterpretations in cancer research. The team proposes using RNA spike-ins as a standardized control to eliminate assumptions.
A large-scale analysis of Y chromosomes found two spontaneously recurring deletions responsible for approximately 8% of failed sperm production. The deletion known as b2/b4 increases the risk of severe spermatogenic failure and is associated with roughly 6% of cases.
Researchers have found that elevated expression of c-Myc amplifies the activity of all expressed genes in tumor cells, leading to increased transcription and proliferation. This discovery provides a simple explanation for how a single protein can have a profound effect in many types of cancer.
Researchers at Whitehead Institute identified four genetic markers that predict pluripotency in single cells, allowing for more efficient reprogramming. The team also discovered six new combinations of factors that activate Sox2, leading to full reprogramming and potentially healthier iPSCs.
Researchers successfully reprogrammed skin cells into germ cell-supporting embryonic Sertoli-like cells, which exhibit characteristics of native Sertoli cells. The trans-differentiated cells supported other cells in a Petri dish and had enhanced supportive capacity after transplantation into the brain.
Researchers identified protein cyclin D3 as regulating RBC production, affecting size and quantity. The protein's role was confirmed through experiments on mouse and human cells, shedding light on the control of RBC characteristics.
Researchers at Whitehead Institute have published a comprehensive catalog of genes active in planarian eyes, shedding light on eye development and regeneration. The study identifies key genes involved in eye biology, including ovo, which plays a critical role in eye formation and regeneration.
Researchers found that HSF1 activates a transcriptional program distinct from heat shock, driving the development of aggressive cancer phenotypes in breast, lung, and colon cancers. The findings suggest HSF1 as a potential therapeutic target for treating multiple cancer types.
Researchers have defined and analyzed the crystal structure of a yeast Argonaute protein bound to RNA, shedding light on the RNA interference pathway that silences gene expression. The study reveals a four-component active site, resolving a longstanding mystery in the field.
A new clinical trial is testing a combination of fulvestrant and ganetespib, an HSP90 inhibitor, to treat recurrent or metastatic estrogen receptor-positive breast cancer. The goal is to make tumor cells more susceptible to hormonal therapies.
The lobSTR algorithm accelerates DNA profiling by accurately analyzing over 100,000 short tandem repeats in a single day. This innovation opens up new research opportunities in medical genetics, population genetics, and forensics.
Researchers found that inhibiting only mTORC1, a protein complex regulating growth and differentiation, prolongs life in mice without adverse effects on glucose tolerance or insulin sensitivity. This discovery may lead to the development of a drug specifically targeting mTORC1 to promote longevity while preventing diabetes.
Scientists at Whitehead Institute have made a breakthrough in understanding planarian stem cells, discovering genes that regulate two main functions: differentiation and renewal. The study, published in Cell Stem Cell, provides insights into the molecular mechanisms underlying regenerative medicine.
A team of Whitehead Institute scientists confirms that the human Y chromosome has not lost a single ancestral gene in the past 25 million years. The study, published in Nature, contradicts the 'rotting Y' theory and suggests the Y chromosome has been genetically stable since its divergence from other chromosomes 25 million years ago.
Researchers found prions in one-third of wild yeast strains, creating diverse new traits, nearly half of which are beneficial. This discovery suggests that prions may be an inherent survival mechanism, helping yeasts adapt to changing environments and evolve in response to stress.
A team of scientists has discovered that two competing noncoding RNAs play a crucial role in regulating FLO11 gene expression in yeast cells, allowing them to adapt to different environments. This finding provides new understanding of location-dependent gene expression and its significance in various biological processes.
Researchers have discovered that dynein, a motor protein, plays a crucial role in spindle alignment during mitosis. A signal from the chromosomes involving the ras-related nuclear protein (Ran) blocks LGN and dynein from attaching to the cell cortex closest to the chromosomes.
Research reveals LSD1's key function in silencing embryonic stem cell genes during differentiation, allowing cells to adopt new operating systems. The findings hold broader implications for understanding defective operating systems in diseases like cancer.
Researchers at Whitehead Institute found that brain glia cells increase their DNA content through polyploidization to maintain the blood-brain barrier. This process allows for growth while keeping the barrier intact, as seen in other tissues like the placenta and skin.
Researchers identified conserved lincRNAs that affect brain development in zebrafish and found that their human versions have similar functions. The discovery provides a framework for studying lincRNAs, which are abundant but poorly understood molecules.
Researchers discovered a long non-coding RNA (lncRNA) that prevents programmed cell death in maturing red blood cells, a process linked to leukemias and cancers. This lncRNA may represent a new avenue of attack for therapeutics.
A study published in Cell Stem Cell reveals that adjusting the levels of reprogramming factors can significantly impact the quality and fidelity of induced pluripotent stem (iPS) cells. This finding explains the variability in iPS cell quality reported in recent studies, which has sparked debate about their therapeutic potential.
Researchers at Whitehead Institute and MIT have developed a novel surface that enables tripling of human embryonic stem and induced pluripotent stem cell growth in culture. This breakthrough eliminates the need for mouse feeder cells, reducing contamination risks and increasing efficiency.
Researchers found that high levels of heat shock factor 1 (HSF1) in ER-positive breast cancer tissue are associated with poorer outcomes, including increased mortality. Elevated HSF1 levels also correlate with larger and more aggressive tumors.
Researchers have identified a dozen genetic modifiers of amyloid beta toxicity in yeast, including several linked to Alzheimer's disease risk by genome-wide association studies. The yeast model also showed that these genes can suppress Aβ-induced neuronal loss in worms and cultured rat neurons.
Scientists have determined that master transcription factors control gene expression in response to signaling pathways, tailoring cell state and function. This discovery sheds light on disease mechanisms and potential therapeutic targets.
Researchers have identified a protein used by Ebola virus to gain entry into cells and begin replicating, providing a new target for antiviral drugs. This discovery may lead to the development of more stable and effective treatments for Ebola hemorrhagic fever (EHF), currently caused by one of the deadliest known viruses affecting humans.