Publications by authors named "Ishiguro S"

Membrane proteins targeted to the plasma membrane are first transported from the endoplasmic reticulum (ER) to the Golgi apparatus. This study explored the mechanisms controlling plasma membrane trafficking of the boric acid channel AtNIP5;1 from the ER. Imaging-based screening using transgenic Arabidopsis identified six mutants in which GFP-NIP5;1 was localized in the ER in addition to the plasma membrane.

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  • In familial adenomatous polyposis (FAP) patients, fundic gland polyps (FGPs) are thought to increase the risk of gastric neoplasms, and this study explored how the distribution of these polyps relates to cancer development.
  • A review of 195 FAP patients showed that those with a wider distribution of FGPs (classified from P0 to P4) had a higher likelihood of developing gastric neoplasms, particularly in those who were Helicobacter pylori-negative.
  • The study concluded that the pattern of FGP distribution is significantly linked to gastric neoplasm risk in FAP patients, with the most severe distribution (P4) indicating the highest risk.
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  • Familial adenomatous polyposis (FAP) is a hereditary condition leading to hundreds or thousands of colorectal polyps, which can progress to cancer if untreated; it’s caused by mutations in the APC gene.
  • The report discusses two cases where women with FAP experienced an increase in fundic gland polyps after using proton pump inhibitors, which were then reduced upon switching medications.
  • The study concludes that these types of medications can raise gastrin levels, leading to a rapid increase in polyps, and highlights the need for careful prescription of these drugs in FAP patients.
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Working memory (WM) plays a crucial role in various cognitive tasks from language comprehension to problem-solving. However, its influence on social activities has remained largely unexplored. The current two studies on individual differences, a pilot (N = 329) and a pre-registered direct replication (N = 338) study, investigated the relationship between WM and outside-the-lab social interaction by using a listening span task and three social network questionnaires (e.

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The RNA-guided DNA endonuclease Cas9 cleaves double-stranded DNA targets complementary to an RNA guide, and is widely used as a powerful genome-editing tool. Here, we report the crystal structure of Brevibacillus laterosporus Cas9 (BlCas9, also known as BlatCas9), in complex with a guide RNA and its target DNA at 2.4-Å resolution.

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  • Paget's disease (PD) is a type of carcinoma characterized by abnormal cells in the epithelium, with two types: breast PD and extramammary PD (EMPD), the latter being harder for surgeons to navigate.
  • An 83-year-old male underwent treatment for rough esophageal epithelium, which was found to be squamous cell carcinoma during a biopsy, leading to endoscopic submucosal dissection (ESD).
  • The case highlighted challenges in identifying the tumor’s distribution and growth pattern, complicating preoperative assessments for the healthcare team.
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  • Patients with heart failure (HF) can face recurring health crises and develop other conditions like kidney disease and frailty, but the connections between these issues aren't fully understood.
  • Research showed that changes in hematopoietic stem cells (HSCs) play a major role in worsening HF and related comorbidities, as HSCs' ability to create inflammatory macrophages increases in HF mice.
  • The study found that cardiac stress impacts HSCs' genetic activity, impacting how they respond to stress and contributing to repeated heart failure and other health issues, suggesting HSCs carry a "stress memory" affecting overall health.
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Sugars, synthesized by photosynthesis in source organs, are loaded and utilized as an energy source and carbon skeleton in sink organs, and also known to be important signal molecules regulating gene expression in higher plants. The expression of genes coding for sporamin and β-amylase, the two most abundant proteins in storage roots of sweet potato, is coordinately induced by sugars. We previously reported on the identification of the carbohydrate metabolic signal-responsible element-1 (CMSRE-1) essential for the sugar-responsible expression of two genes.

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Recent advancements in image-based pooled CRISPR screening have facilitated the mapping of diverse genotype-phenotype associations within mammalian cells. However, the rapid enrichment of cells based on morphological information continues to pose a challenge, constraining the capacity for large-scale gene perturbation screening across diverse high-content cellular phenotypes. In this study, we demonstrate the applicability of multimodal ghost cytometry-based cell sorting, including both fluorescent and label-free high-content phenotypes, for rapid pooled CRISPR screening within vast cell populations.

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Studies on short-term memory have repeatedly demonstrated the beneficial effect of semantic similarity. Although the effect seems robust, the aspects of semantics targeted by these studies (e.g.

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In angiosperms, the transition from floral-organ maintenance to abscission determines reproductive success and seed dispersion. For petal abscission, cell-fate decisions specifically at the petal-cell base are more important than organ-level senescence or cell death in petals. However, how this transition is regulated remains unclear.

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Many terrestrial plants produce large quantities of alkanes for use in epicuticular wax and the pollen coat. However, their carbon chains must be long to be useful as fuel or as a petrochemical feedstock. Here, we focus on Nymphaea odorata, which produces relatively short alkanes in its anthers.

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Background: Guidelines such as the National Comprehensive Cancer Network recommend mycophenolate mofetil (MMF) for the treatment of severe steroid-refractory immune-related hepatotoxicity. Mycophenolic acid (MPA) is an active form of MMF that suppresses T- and B-lymphocyte proliferation and immune-related adverse events caused by immune checkpoint inhibitors. MPA has a narrow therapeutic range (37-70 µg·h/mL) and overexposure increases the risk of leukopenia in transplantation.

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Background: Patients with familial adenomatous polyposis (FAP) have a lifetime risk of developing duodenal adenomas approaching 100%, and the relative risk for duodenal cancer compared with the general population is high. We conducted a retrospective study to investigate the progression of non-ampullary duodenal adenomas (NADAs) and risk factors for advanced lesions in patients with FAP.

Methods: Of 248 patients with 139 pedigrees at 2 institutes, we assessed 151 patients with 100 pedigrees with a pathogenic germline variant in the adenomatous polyposis coli gene, excluding mosaic variants.

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Familial adenomatous polyposis (FAP) patients develop various life-threatening extracolonic comorbidities that appear individually or within a family. This diversity can be explained by the localization of the adenomatous polyposis coli (APC) variant, but few reports provide definitive findings about genotype-phenotype correlations. Therefore, we investigated FAP patients and the association between the severe phenotypes and APC variants.

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SpCas9 and AsCas12a are widely utilized as genome-editing tools in human cells. However, their relatively large size poses a limitation for delivery by cargo-size-limited adeno-associated virus (AAV) vectors. The type V-F Cas12f from Acidibacillus sulfuroxidans is exceptionally compact (422 amino acids) and has been harnessed as a compact genome-editing tool.

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  • - Single-cell sequencing offers detailed genomic insights but lacks the spatial context of cells; advancements in spatial transcriptomics and multi-omics technologies aim to bridge this gap by analyzing tissue molecular profiles.
  • - The article classifies current spatial genomics technologies into three categories: optical imaging, positional indexing, and mathematical cartography, while discussing their trade-offs, limitations, and potential synergies with single-cell methods.
  • - A proposed theoretical framework called DNA-GPS aims to enhance large-scale spatial genomics by integrating concepts from mathematical cartography and positional indexing, potentially allowing for 3D positioning of cells without optical measurements.
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Although effective vaccines have been developed against SARS-CoV-2, many regions in the world still have low rates of vaccination and new variants with mutations in the viral spike protein have reduced the effectiveness of most available vaccines and treatments. There is an urgent need for a drug to cure this disease and prevent infection. The SARS-CoV-2 virus enters the host cell through protein-protein interaction between the virus's spike protein and the host's angiotensin converting enzyme (ACE2).

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Extracts from have been shown to prevent cancer growth in mouse models. However, the molecular mechanism of this anti-cancer activity has not been determined nor has the effect of extracts on tobacco smoke carcinogen-induced carcinogenesis. Here, we investigate the hypothesis that this anti-cancer activity is a result of changes in the intestinal microbiota induced by oral administration of the extract.

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Background: Underwater endoscopic mucosal resection (UEMR) has been developed as an effective endoscopic intervention for colon, rectum, and duodenum neoplasms. However, there are no comprehensive reports regarding the stomach, and its safety and efficacy are unknown. We aimed to examine the feasibility of UEMR for gastric neoplasms in patients with familial adenomatous polyposis (FAP).

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Proteins involved in immune checkpoint pathways, such as CTLA4, PD1, and PD-L1, have become important targets for cancer immunotherapy; however, development of small molecule drugs targeting these pathways has proven difficult due to the nature of their protein-protein interfaces. Here, using a hierarchy of computational techniques, we design a cyclic peptide that binds CTLA4 and follow this with experimental verification of binding and biological activity, using bio-layer interferometry, cell culture, and a mouse tumor model. Beginning from a template excised from the X-ray structure of the CTLA4:B7-2 complex, we generate several peptide sequences using flexible docking and modeling steps.

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Background: Peutz-Jeghers syndrome (PJS) is a rare disease characterized by the presence of hamartomatous polyposis throughout the gastrointestinal tract, except for the esophagus, along with characteristic mucocutaneous pigmentation. It is caused by germline pathogenic variants of the STK11 gene, which exhibit an autosomal dominant mode of inheritance. Some patients with PJS develop gastrointestinal lesions in childhood and require continuous medical care until adulthood and sometimes have serious complications that significantly reduce their quality of life.

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Targeted expression of bgl23-D, a dominant-negative allele of ATCSLD5, is a useful genetic approach for functional analysis of ATCSLDs in specific cells and tissues in plants. Stomata are key cellular structures for gas and water exchange in plants and their development is influenced by several genes. We found the A.

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Introduction: Anastomosing hemangioma in the adrenal area is extremely rare. We report a large anastomosing hemangioma in the adrenal area that underwent robot-assisted adrenalectomy.

Case Presentation: A 49-year-old man with left back pain underwent magnetic resonance imaging (MRI) that revealed a tumor in the left adrenal area; it was diagnosed as nonfunctional endocrinologically.

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A 67-year-old man presented with lower limb weakness, palpitations, and insomnia. His urinary total metanephrine and normetanephrine levels were high. Computed tomography showed a 48 × 34-mm oval mass on the dorsal side of the pancreas and portal vein between the aorta and vena cava.

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