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Neoplasm Metastasis

Neoplasm Metastasis: The spread of a neoplasm from an original site to another non-adjacent site.
Metastasis can occur via the bloodstream or the lymphatic system.
Metastatic tumors differ in histologic type from the original tumor site.
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Most cited protocols related to «Neoplasm Metastasis»

Except for the novel paired-end functionality and support for alignments in BAM format, many of the genomic comparisons supported by BEDTools can be performed in one way or another with available web-based tools. However, BEDTools offers several important advantages. First, it can read data from standard input and write to standard output, which allows complex set operations to be performed by combining BEDTools operations with each other or with existing UNIX utilities. Second, most of the tools can distinguish DNA strands when searching for overlaps, which allows orientation to be considered when interpreting paired-end mapping or RNA-seq data. Third, the use of BEDTools mitigates the need to interact with local or public instances of the UCSC Genome Browser or Galaxy, which can be a major bottleneck when working with large genomics datasets. Finally, the speed and extensive functionality of BEDTools allow greater flexibility in defining and refining genomic comparisons. These features allow for diverse and complex comparisons to be made between ever-larger genomic datasets.
Publication 2010
Genome RNA-Seq
VCFtools is an open-source software package for parsing, analyzing and manipulating VCF files. The software suite is broadly split into two modules. The first module provides a general Perl API, and allows various operations to be performed on VCF files, including format validation, merging, comparing, intersecting, making complements and basic overall statistics. The second module consists of C++ executable primarily used to analyze SNP data in VCF format, allowing the user to estimate allele frequencies, levels of linkage disequilibrium and various Quality Control metrics. Further details of VCFtools can be found on the web site (http://vcftools.sourceforge.net/), where the reader can also find links to alternative tools for VCF generation and manipulation, such as the GATK toolkit (McKenna et al., 2010 (link)).
Publication 2011
Complement System Proteins
Exon-spanning reads sometimes have very small anchors (defined here as 1–7 bp) in one of the exons. Correctly aligning these reads is extremely difficult because a 1- to 7-bp anchor will align to numerous locations, even in a local FM index. Arguably the most effective approach to align such short-anchored reads is to use splice site information to remove the introns computationally before alignment. We can identify and collect splice site locations when aligning reads with long anchors and then rerun HISAT for the short-anchored reads (Supplementary Fig. 9). This two-step approach is very similar to the two-step algorithm in TopHat2.
More specifically, in the two-step HISATx2 method, we use the first run of HISAT (HISATx1) to generate a list of splice sites supported by reads with long anchors. In the second run we then use the splice sites to align reads with small anchors. For example, consider the unmapped read spanning exons e2 and e3 (the upper portion of Supplementary Fig. 9). The right part of the read will be mapped to exon e3 using the global search and extension operations, leaving a short, 3-bp segment unmapped. We then check the splice sites found in the first run of HISAT to find any splice sites near this partial alignment. In this example, we find a splice site supported by a read spanning exons e2 and e3 with long anchors in each exon. On the basis of this information, we directly compare the 3 bp of the read and the corresponding genomic sequence in exon e2. If it matches, we combine the 3-bp alignment with the alignment of the rest of the read. This ‘junction extension’ procedure that makes use of previously identified splice sites is represented by brown arrows in the figure.
As we show in our experiments on simulated reads, this two-step strategy produces accurate alignment of reads with anchors as small as 1 bp (see Results). Although HISATx2 has considerably better sensitivity, it takes twice as long to run as HISATx1. As an alternative, we developed a hybrid method, HISAT, which has sensitivity almost equal to that of HISATx2 but with the speed of HISATx1. HISAT collects splice sites as it processes the reads, similarly to the first run of HISATx2. However, as it is processing, it uses the splice sites collected thus far to align short-anchored reads. In the vast majority of cases, it can align even the shortest anchors because it has seen the associated splice sites earlier. This result follows from the observation that most splice sites can be discovered within the first few million reads, and most RNA-seq data sets contain tens of millions of reads. As our results show, HISAT provides alignment sensitivity that very nearly matches the two-step HISATx2 algorithm, with a run time nearly as fast as the one-step HISAT method.
The hybrid approach is also effective in aligning reads spanning more than two exons, which are more likely to have small anchors. The alignment sensitivity for such reads increases from 53% using HISATx1 to 95% using HISAT (Supplementary Fig. 2).
Publication 2015
Exons Genome Hybrids Hypersensitivity Introns RNA-Seq Toxic Epidermal Necrolysis Vision
Some sequences, or even entire reads, can be overrepresented in FASTQ data. Analysis of these overrepresented sequences provides an overview of certain sequencing artifacts such as PCR over-duplication, polyG tails and adapter contamination. FASTQC offers an overrepresented sequence analysis module, however, according to the author’s introduction, FASTQC only tracks the first 1 M reads of the input file to conserve memory. We suggest that inferring the overall distribution from the first 1 M reads is not a reliable solution as the initial reads in Illumina FASTQ data usually originate from the edges of flowcell lanes, which may have lower quality and different patterns than the overall distribution.
Unlike FASTQC, fastp samples all reads evenly to evaluate overrepresented sequences and eliminate partial distribution bias. To achieve an efficient implementation of this feature, we designed a two-step method. In the first step, fastp completely analyzes the first 1.5 M base pairs of the input FASTQ to obtain a list of sequences with relatively high occurrence frequency in different sizes. In the second step, fastp samples the entire file and counts the occurrence of each sequence. Finally, the sequences with high occurrence frequency are reported.
Besides the occurrence frequency, fastp also records the positions of overrepresented sequences. This information is quite useful for diagnosing sequence quality issues. Some sequences tend to appear in the read head whereas others appear more often in the read tail. The distribution of overrepresented sequences is visualized in the HTML report. Figure 5 shows a demonstration of overrepresented sequence analysis results.
Publication 2018
Head Memory Poly G Sequence Analysis Tail
The basic principle of meta-analysis is to combine the evidence for association from individual studies, using appropriate weights. METAL implements two approaches. The first approach converts the direction of effect and P-value observed in each study into a signed Z-score such that very negative Z-scores indicate a small P-value and an allele associated with lower disease risk or quantitative trait levels, whereas large positive Z-scores indicate a small P-value and an allele associated with higher disease risk or quantitative trait levels. Z-scores for each allele are combined across samples in a weighted sum, with weights proportional to the square-root of the sample size for each study (Stouffer et al., 1949 ). In a study with unequal numbers of cases and controls, we recommend that the effective sample size be provided in the input file, where Neff = 4/(1/Ncases+1/Nctrls). This approach is very flexible and allows results to be combined even when effect size estimates are not available or the β-coefficients and standard errors from individual studies are in different units. The second approach implemented in METAL weights the effect size estimates, or β-coefficients, by their estimated standard errors. This second approach requires effect size estimates and their standard errors to be in consistent units across studies. Asymptotically, the two approaches are equivalent when the trait distribution is identical across samples (such that standard errors are a predictable function of sample size). Key formulae for both approaches are in Table 1.

Formulae for meta-analysis

Analytical strategy
Sample size basedInverse variance based
InputsNi - sample size for study iβi- effect size estimate for study i
PiP-value for study i
Δi - direction of effect for study isei - standard error for study i
Intermediate StatisticsZi = Φ−1(Pi/2) * sign(Δi)wi = 1/SEi2
Overall Z-ScoreZ=β/SE
Overall P-valueP=2Φ(|−Z|)
Publication 2010
Alleles Metals Plant Roots

Most recents protocols related to «Neoplasm Metastasis»

Example 3

Reactivity of the antibodies of the invention against several species of mesothelin (cyno, rat, mouse) was tested using assays well known in the art. The data is summarized in FIG. 4.

FACS binding assays were performed to evaluate the binding of the anti-Mesothlelin antibodies to murine, rat and cynomologous monkey mesothelin orthologues, using recombinant forms of the various receptors transiently expressed on 293T cells. FACs assays were performed by incubating hybridoma supernatants with 10,000 to 25,000 cells in PBS/2% Fetal bovine serum/2 mM Calcium Chloride at 4° C. for one hour followed by two washes with PBS/2% Fetal bovine serum/2 mM Calcium Chloride. Cells were then treated with florochrome-labeled secondary antibodies at 4° C. followed by one wash. The cells were resuspended in 50 μl of PBS/2% FBS and antibody binding was analyzed using a FACSCalibur™ instrument.

Patent 2024
Anti-Antibodies Antibodies Biological Assay Calcium chloride Cells Cross Reactions HEK293 Cells Hybridomas Immunoglobulins Mesothelin Monkeys Mus
Not available on PMC !

Example 7

Example 7 provides a method which can be used for producing bone graft substitutes of the present invention.

Reagents

    • 0.14M NaF solution
    • Absolute (100%) ethanol
    • tetraethyl orthosilicate (TEOS, (Si(OC2H5)4))
    • Brushite (CaHPO4·2H2O) Brushite is dissolved in 0.14 M solution of NaF, after which ethanol is added. This mixture is then stirred for 5 minutes.

Finally the TEOS is combined slowly with the solution and is allowed to stir for thirty seconds.

4 ml of the solution is cast into cylindrical moulds (Ø11 mm×50 mm height, via syringe). Each mould is then covered with film and placed into glass container.

Each sample is then gelled for 48 hours at 60° C.

Each sample is then placed into 60% ethanol. After 24 hours the solution is changed for 80% ethanol. After another 24 hours it is changed once again for 95% ethanol. Finally the solution is replaced with 100% ethanol.

Each sample is dried using the CPD method using a Tousimis® 931 critical point drier. Each sample is run through three stasis cycles of eight hours each.

After critical drying each sample is then calcined at 700° C. for three hours.

Patent 2024
Bone Substitutes Bone Transplantation brushite CD3EAP protein, human Ethanol Fungus, Filamentous Grafts Neoplasm Metastasis Syringes tetraethoxysilane

Example 1

Provided is a preparation method for an A-site high-entropy nanometer metal oxide (Gd0.4Er0.3La0.4Nd0.5Y0.4)(Zr0.7, Sn0.8, V0.5)O7 with high conductivity, the method including the following steps.

    • (1) Gd(NO3)3, Er(NO3)3, La(NO3)3, Nd(NO3)3, Y(NO3)3, ZrOSO4, SnC14 and NH4VO3 were taken at a molar ratio of 0.4:0.3:0.4:0.5:0.4:0.7:0.8:0.5, added to a mixed solution of deionized water/absolute ethyl alcohol/tetrahydrofuran at a mass ratio of 0.3:3:0.5, and stirred for five minutes to obtain a mixed liquid I. The ratio of the total mass of Gd(NO3)3, Er(NO3)3, La(NO3)3, Nd(NO3)3, Y(NO3)3, ZrOSO4, SnC14 and NH4VO3 to that of the mixed solution of deionized water/absolute ethyl alcohol/tetrahydrofuran (0.3:3:0.5) is 12.6%.
    • (2) Para-phenylene diamine, hydrogenated tallowamine, sorbitol and carbamyl ethyl acetate at a mass ratio of 1:0.2:7:0.01 were taken, added to propyl alcohol, and stirred for one hour to obtain a mixed liquid II. The ratio of the total mass of the para-phenylene diamine, the hydrogenated tallowamine, the sorbitol and the carbamyl ethyl acetate to that of the propyl alcohol is 7.5%;
    • (3) The mixed liquid I obtained in step (1) was heated to 50° C., and the mixed liquid II obtained in step (2) was dripped at the speed of one drop per second, into the mixed liquid I obtained in step (1) with stirring and ultrasound, and heated to the temperature of 85° C. after the dripping is completed and the temperature was maintained for three hours while stopping stirring, and the temperature was decreased to the room temperature, so as to obtain a mixed liquid III. The mass ratio of the mixed liquid I to the mixed liquid II is 10:4.
    • (4) The mixed liquid III was added to an electrolytic cell with using a platinum electrode as an electrode and applying a voltage of 3 V to two ends of the electrode, and reacting for 13 minutes, to obtain a mixed liquid IV.
    • (5) The mixed liquid IV obtained in step (4) was heated with stirring, another mixed liquid II was taken and dripped into the mixed liquid IV obtained in step (4) at the speed of one drop per second. The mass ratio of the mixed liquid II to the mixed liquid IV is 1.05:1.25; and after the dripping is completed, the temperature was decreased to the room temperature under stirring, so as to obtain a mixed liquid V.
    • (6) A high-speed shearing treatment was performed on the mixed liquid V obtained in step (5) by using a high-speed shear mulser at the speed of 20000 revolutions per minute for one hour, so as to obtain a mixed liquid VI.
    • (7) Lyophilization treatment was performed on the mixed liquid VI to obtain a mixture I;
    • (8) The mixture I obtained in step (7) and absolute ethyl alcohol were mixed at a mass ratio of 1:2 and uniformly stirred, and were sealed at a temperature of 210° C. for performing solvent thermal treatment for 18 hours. The reaction was cooled to the room temperature, the obtained powder was collected by centrifugation, washed with deionized water and absolute ethyl alcohol eight times respectively, and dried to obtain a powder I.
    • (9) The powder I obtained in step (8) and ammonium persulfate was uniformly mixed at a mass ratio of 10:1, and sealed and heated to 165° C. The temperature was maintained for 13 hours. The reaction was cooled to the room temperature, the obtained mixed powder was washed with deionized water ten times, and dried to obtain a powder II.
    • (10) The powder II obtained in step (4) was placed into a crucible, heated to a temperature of 1500° C. at a speed of 3° C. per minute. The temperature was maintained for 7 hours. The reaction was cooled to the room temperature, to obtain an A-site high-entropy nanometer metal oxide (Gd0.4Er0.3La0.4Nd0.5Y0.4)(Zr0.7, Sn0.8, V0.5)O7 with high conductivity.

As observed via an electron microscope, the obtained A-site high-entropy nanometer metal oxide with high conductivity is a powder, and has microstructure of a square namometer sheet with a side length of about 4 nm and a thickness of about 1 nm.

The product powder was taken and compressed by using a powder sheeter at a pressure of 550 MPa into a sheet. Conductivity of the sheet is measured by using the four-probe method, and the conductivity of the product is 2.1×108 S/m.

A commercially available ITO (indium tin oxide) powder is taken and compressed by using a powder sheeter at a pressure of 550 MPa into a sheet, and the conductivity of the sheet is measured by using the four-probe method.

As measured, the conductivity of the commercially available ITO (indium tin oxide) is 1.6×106 S/m.

Patent 2024
1-Propanol 4-phenylenediamine Absolute Alcohol ammonium peroxydisulfate Cells Centrifugation Electric Conductivity Electrolytes Electron Microscopy Entropy Ethanol ethyl acetate Freeze Drying indium tin oxide Metals Molar Oxides Platinum Powder Pressure propyl acetate Solvents Sorbitol tetrahydrofuran Ultrasonography

Example 12

As a proof of concept, the patient population of this study is patients that (1) have moderate to severe ulcerative colitis, regardless of extent, and (2) have had an insufficient response to a previous treatment, e.g., a conventional therapy (e.g., 5-ASA, corticosteroid, and/or immunosuppressant) or a FDA-approved treatment. In this placebo-controlled eight-week study, patients are randomized. All patient undergo a colonoscopy at the start of the study (baseline) and at week 8. Patients enrolled in the study are assessed for clinical status of disease by stool frequency, rectal bleeding, abdominal pain, physician's global assessment, and biomarker levels such as fecal calprotectin and hsCRP. The primary endpoint is a shift in endoscopy scores from Baseline to Week 8. Secondary and exploratory endpoints include safety and tolerability, change in rectal bleeding score, change in abdominal pain score, change in stool frequency, change in partial Mayo score, change in Mayo score, proportion of subjects achieving endoscopy remission, proportion of subjects achieving clinical remission, change in histology score, change in biomarkers of disease such as fecal calprotectin and hsCRP, level of adalimumab in the blood/tissue/stool, change in cytokine levels (e.g., TNFα, IL-6) in the blood and tissue.

FIG. 72 describes an exemplary process of what would occur in clinical practice, and when, where, and how the ingestible device will be used. Briefly, a patient displays symptoms of ulcerative colitis, including but not limited to: diarrhea, bloody stool, abdominal pain, high c-reactive protein (CRP), and/or high fecal calprotectin. A patient may or may not have undergone a colonoscopy with diagnosis of ulcerative colitis at this time. The patient's primary care physician refers the patient. The patient undergoes a colonoscopy with a biopsy, CT scan, and/or MRI. Based on this testing, the patient is diagnosed with ulcerative colitis. Most patients are diagnosed with ulcerative colitis by colonoscopy with biopsy. The severity based on clinical symptoms and endoscopic appearance, and the extent, based on the area of involvement on colonoscopy with or without CT/MRI is documented. Treatment is determined based on diagnosis, severity and extent.

For example, treatment for a patient that is diagnosed with ulcerative colitis is an ingestible device programmed to release a single bolus of a therapeutic agent, e.g., 40 mg adalimumab, in the cecum or proximal to the cecum. Prior to administration of the treatment, the patient is fasted overnight and is allowed to drink clear fluids. Four hours after swallowing the ingestible device, the patient can resume a normal diet. An ingestible device is swallowed at the same time each day. The ingestible device is not recovered.

In some embodiments, there may be two different ingestible devices: one including an induction dose (first 8 to 12 weeks) and a different ingestible device including a different dose or a different dosing interval.

In some examples, the ingestible device can include a mapping tool, which can be used after 8 to 12 weeks of induction therapy, to assess the response status (e.g., based on one or more of the following: drug level, drug antibody level, biomarker level, and mucosal healing status). Depending on the response status determined by the mapping tool, a subject may continue to receive an induction regimen or maintenance regimen of adalimumab.

In different clinical studies, the patients may be diagnosed with Crohn's disease and the ingestible devices (including adalimumab) can be programmed to release adalimumab in the cecum, or in both the cecum and transverse colon.

In different clinical studies, the patients may be diagnosed with illeocolonic Crohn's disease and the ingestible devices (including adalimumab) can be programmed to release adalimumab in the late jejunum or in the jejunum and transverse colon.

Patent 2024
Abdominal Pain Adalimumab Adrenal Cortex Hormones Biological Markers Biopsy BLOOD Cecum Colonoscopy C Reactive Protein Crohn Disease Cytokine Diarrhea Diet Endoscopy Endoscopy, Gastrointestinal Feces Homo sapiens Immunoglobulins Immunosuppressive Agents Jejunum Leukocyte L1 Antigen Complex Medical Devices Mesalamine Mucous Membrane Neoadjuvant Therapy Patient Care Management Patients Pharmaceutical Preparations Placebos Primary Care Physicians Safety Therapeutics Tissues Transverse Colon Treatment Protocols Tumor Necrosis Factor-alpha Ulcerative Colitis X-Ray Computed Tomography

Example 2

The next experiments asked whether inhibition of the same set of FXN-RFs would also upregulate transcription of the TRE-FXN gene in post-mitotic neurons, which is the cell type most relevant to FA. To derive post-mitotic FA neurons, FA(GM23404) iPSCs were stably transduced with lentiviral vectors over-expressing Neurogenin-1 and Neurogenin-2 to drive neuronal differentiation, according to published methods (Busskamp et al. 2014, Mol Syst Biol 10:760); for convenience, these cells are referred to herein as FA neurons. Neuronal differentiation was assessed and confirmed by staining with the neuronal marker TUJ1 (FIG. 2A). As expected, the FA neurons were post-mitotic as evidenced by the lack of the mitotic marker phosphorylated histone H3 (FIG. 2B). Treatment of FA neurons with an shRNA targeting any one of the 10 FXN-RFs upregulated TRE-FXN transcription (FIG. 2C) and increased frataxin (FIG. 2D) to levels comparable to that of normal neurons. Likewise, treatment of FA neurons with small molecule FXN-RF inhibitors also upregulated TRE-FXN transcription (FIG. 2E) and increased frataxin (FIG. 2F) to levels comparable to that of normal neurons.

It was next determined whether shRNA-mediated inhibition of FXN-RFs could ameliorate two of the characteristic mitochondrial defects of FA neurons: (1) increased levels of reactive oxygen species (ROS), and (2) decreased oxygen consumption. To assay for mitochondrial dysfunction, FA neurons an FXN-RF shRNA or treated with a small molecule FXN-RF inhibitor were stained with MitoSOX, (an indicator of mitochondrial superoxide levels, or ROS-generating mitochondria) followed by FACS analysis. FIG. 3A shows that FA neurons expressing an NS shRNA accumulated increased mitochondrial ROS production compared to EZH2- or HDAC5-knockdown FA neurons. FIG. 3B shows that FA neurons had increased levels of mitochondrial ROS production compared to normal neurons (Codazzi et al., (2016) Hum Mol Genet 25(22): 4847-485). Notably, inhibition of FXN-RFs in FA neurons restored mitochondrial ROS production to levels comparable to that observed in normal neurons. In the second set of experiments, mitochondrial oxygen consumption, which is related to ATP production, was measured using an Agilent Seahorse XF Analyzer (Divakaruni et al., (2014) Methods Enzymol 547:309-54). FIG. 3C shows that oxygen consumption in FA neurons was ˜60% of the level observed in normal neurons. Notably, inhibition of FXN-RFs in FA neurons restored oxygen consumption to levels comparable to that observed in normal neurons. Collectively, these preliminary results provide important proof-of-concept that inhibition of FXN-RFs can ameliorate the mitochondrial defects of FA post-mitotic neurons.

Mitochondrial dysfunction results in reduced levels of several mitochondrial Fe-S proteins, such as aconitase 2 (ACO2), iron-sulfur cluster assembly enzyme (ISCU) and NADH:ubiquinone oxidoreductase core subunit S3 (NDUFS3), and lipoic acid-containing proteins, such as pyruvate dehydrogenase (PDH) and 2-oxoglutarate dehydrogenase (OGDH), as well as elevated levels of mitochondria superoxide dismutase (SOD2) (Urrutia et al., (2014) Front Pharmacol 5:38). Immunoblot analysis is performed using methods known in the art to determine whether treatment with an FXN-RF shRNA or a small molecule FXN-RF inhibitor restores the normal levels of these mitochondrial proteins in FA neurons.

Patent 2024
Aconitate Hydratase Biological Assay Cells Cloning Vectors Enzymes EZH2 protein, human frataxin Genets HDAC5 protein, human Histone H3 Immunoblotting Induced Pluripotent Stem Cells inhibitors Iron Ketoglutarate Dehydrogenase Complex Mitochondria Mitochondrial Inheritance Mitochondrial Proteins MitoSOX NADH NADH Dehydrogenase Complex 1 NEUROG1 protein, human Neurons Oxidoreductase Oxygen Consumption Proteins Protein Subunits Psychological Inhibition Pyruvates Reactive Oxygen Species Repression, Psychology Seahorses Short Hairpin RNA Sulfur sulofenur Superoxide Dismutase Superoxides Thioctic Acid Transcription, Genetic

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More about "Neoplasm Metastasis"

Neoplasm Metastasis, also known as cancer metastasis or tumor metastasis, refers to the spread of a cancerous growth from its original site to another non-adjacent location in the body.
This process can occur through the bloodstream or the lymphatic system, and the metastatic tumors may differ in their histological characteristics from the primary tumor.
Optimizing research on Neoplasm Metastasis is crucial for understanding the mechanisms of cancer progression and developing effective treatment strategies.
PubCompare.ai, an advanced AI-driven platform, can assist researchers in this endeavor by helping them locate the best protocols from literature, preprints, and patents.
The platform's enhanced comparisons improve reproducibility and accuracy, empowering researchers to make more informed decisions.
This is particularly important when working with techniques like PVDF membranes, DAPI staining, Alexa Fluor 488 labeling, RIPA lysis buffer, Triton X-100 detergent, Bovine serum albumin, BCA protein assay kits, and protease inhibitor cocktails, which are commonly used in Neoplasm Metastasis research.
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