the pin is a commercial microarray stealth printing pin, model smp3 (Arrayit Corporation)
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Arrayit Corporation
the pin is a commercial microarray stealth printing pin, model smp3
The Pin Is A Commercial Microarray Stealth Printing Pin, Model Smp3, supplied by Arrayit Corporation, used in various techniques. Bioz Stars score: 90/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
https://www.bioz.com/product/smp3+stealth+microarray+pins/smp3+pins/pm39396275-159-9-12
Average 90 stars, based on 1 article reviews
The Pin Is A Commercial Microarray Stealth Printing Pin, Model Smp3, supplied by Arrayit Corporation, used in various techniques. Bioz Stars score: 90/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
https://www.bioz.com/product/smp3+stealth+microarray+pins/smp3+pins/pm39396275-159-9-12
Average 90 stars, based on 1 article reviews
the pin is a commercial microarray stealth printing pin, model smp3 - by Bioz Stars,
2026-09
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Microarray:Article Title: Substrate stiffness and matrix composition coordinately control the differentiation of liver progenitor cells. Article Snippet: Recent approaches have utilized microfabricated platforms to examine combinations of microenvironmental signals that regulate stem and progenitor cell differentiation.. However, the majority of these efforts have focused on the biochemical properties of extracellular matrix (ECM) or soluble factors without simultaneously exploring the biomechanical effects of cell–substrate interactions.. To address this need, we combined a high-throughput approach for the analysis of combinatorial ECM cues with substrates of modular stiffness and traction force microscopy. Article Title: Combinatorial microenvironmental regulation of liver progenitor differentiation by Notch ligands, TGFβ, and extracellular matrix Article Snippet: Human IgG (970.6 μg/ml final, R&D Systems, 1-001-A) was arrayed as a control in experiments involving Notch ligands. .. A robotic benchtop microarrayer (OmniGrid Micro, Digilab) loaded with Article Title: Mapping lung tumor cell drug responses as a function of matrix context and genotype using cell microarrays. Article Snippet: Carcinoma progression is influenced by interactions between epithelial tumor cells and components of their microenvironment.. In particular, cell–extracellular matrix (ECM) interactions are known to drive tumor growth, metastatic potential, and sensitivity or resistance to therapy.. Yet the intrinsic complexity of ECM composition within the tumor microenvironment remains a barrier to comprehensive investigation of these interactions. |
![Genomic <t>microarray</t> analysis of CENP-C and CENP-H binding domains in two independent 13q32/33 neocentromeres. (a) Ideogrammatic representation of the two neocentric chromosomes analyzed. From left to right: a normal chromosome 13, the invdup13q21 in IMS13q with a neocentromere in band 13q32, and the invdup13q21 in BBB with a neocentromere in band 13q33.1. An expansion of the 13q31.3 to 13q33.2 area included in the bacterial artificial chromosome (BAC) CHIP is shown. The position and size of each previously mapped centromere protein (CENP)-A domain from Alonso and coworkers [32] are indicated. (b) DNA obtained from chromatin immunoprecipitation (ChIP) using antibodies to CENP-C (circles) and CENP-H (triangles) from cell lines BBB and IMS13q was hybridized to a contiguous BAC microarray spanning 14 megabases (Mb) from 13q31.3 to 13q33.2. Shown across the bottom of the graph is the tiling path of the unique sequenced regions for each BAC, the previously determined CENP-A domains [32] in cell lines BBB and IMS13q, and the genes in the region. Three independent biologic replicates were performed for each ChIP from each cell line, and the scale normalized mean log 2 Cy-5:Cy-3 intensity ratios (ChIP to input) with standard error (SE) were plotted on the y-axis for each BAC. Positive intensity ratios were identified as those that were at least three times the standard deviation (SD) from the experimental mean (gray or black dashed lines; see Materials and methods). For cell line BBB, CENP-C ChIP, the experimental mean was 0 ± 0.82 SD. Positive values ≥ 2.5 (black dashed line) were as follows: alpha sat = 6.42 ± 0.39 SE and BAC RP11-46I10 = 4.66 ± 0.92 SE. BAC RP11-29B2 was slightly increased (1.18 ± 1.2 SE) but not statistically significantly. All other BACs ranged from -1.1 to ≤ 0.96. For cell line BBB, CENP-H ChIP, the experimental mean was -0.02 ± 0.75 SD. Positive values ≥ 2.2 (grey dashed line) were as follows: alpha sat = 4.92 ± 1.86 SE and BAC RP11-46I10 = 5.57 ± 0.77 SE. BAC RP11-29B2 was slightly increased (1.58 ± 0.71 SE) but not statistically significantly. All other BACs ranged from -1.27 to ≤ 1.03. For cell line IMS13q, CENP-C ChIP, the experimental mean was 0 ± 0.84 SD. Positive values ≥ 2.5 (black dashed line) were as follows: alpha sat = 5.26 ± 0.38 SE and BAC RP11-199B17 = 4.95 ± 0.86 SE. All other BACs ranged from -1.7 to ≤ 0.93. For cell line IMS13q, CENP-H, the experimental mean was 0.00 ± 0.64 SD. Positive values ≥ 1.9 (grey dashed line) were as follows: alpha sat = 2.63 ± 1.03 SE and BAC RP11-199B17 = 3.95 ± 1.06 SE. All other BACs ranged from -1.17 to ≤ 1.13. (c) Expansion of BAC map in regions that are positive for CENP-C and CENP-H in each neocentromere examined, showing BAC names and overlaps, the genes, and the previously determined CENP-A domains. For cell line BBB, the CENP-A, CENP-C, and CENP-H were mapped to the identical BACs (negative for RP11-811P12, strongly positive for BAC 46I10, and weakly positive for 29B2). For cell line IMS13q, the CENP-A mapped to two contiguous BACs (RP11-721F4 and RP11-199B17), whereas CENP-C and CENP-H mapped only to one BAC (RP11-199B17).](https://pub-med-central-images-cdn.bioz.com/pub_med_central_ids_ending_with_3242/pmc02323242/pmc02323242__gb-2007-8-7-r148-1.jpg)
![The BBB neocentromere contains a major and a minor centromere chromatin domain. DNA obtained from chromatin immunoprecipitation (ChIP) using antibodies to CENP-A, CENP-C, and CENP-H from cell line BBB was hybridized to a custom made microarray containing 257 unique polymerase chain reaction (PCR) fragments. Three independent biological replicates were performed for each antibody, and the scale normalized mean log 2 Cy-5:Cy-3 intensity ratios (ChIP to input), were plotted on the y-axis with the standard error (SE) for each PCR fragment. Intensity ratios at least three times the standard deviation (SD) from the background mean (dashed line) were considered positives (see Materials and methods). An alpha satellite containing plasmid was included as a positive control (far right). (a) Centromere protein (CENP)-A ChIP. The major CENP-A domain was about 80.3 kilobases (kb; shaded region), with positive intensity ratios 1.17 to 2.46. The minor domain was about 8.5 kb (shaded region) and was approximately 162 kb downstream from the major domain; intensity ratios were 1.14 to 1.33. Background experimental mean was -0.39 ± 0.47 SD, one-tailed distribution cut-off was ≤ 0.68, positive values were ≥ 1.02 (dashed line). Alpha satellite = 1.63 ± 0.18 SE. (b) CENP-C ChIP. Major CENP-C domain was 87.8 kb (shaded region). Intensity ratios were 0.67 to 3.41. Minor domain was 8.5 kb; intensity ratios were 0.65 to 1.07 (shaded region). Background experimental mean was -0.37 ± 0.34 SD, one-tailed distribution cut-off was ≤ 0.31, positive values were ≥ 0.65 (dashed line). Alpha satellite = 2.36 ± 0.70 SE. (c) CENP-H ChIP. Major CENP-H domain was about 86.3 kb (shaded region), and positive intensity ratios were 0.64 to 3.35. Minor domain was about 1.9 kb (shaded region), and intensity ratios were 0.82 and 1.14. Background experimental mean was -0.33 ± 0.32 SD, one-tailed distribution cutoff was ≤ 0.56, positive values were ≥ 0.63 (dashed lines). Alpha sat = 2.06 ± 0.59 SE. (d) The 2.3 megabase (Mb) region included in the PCR CHIP. The central 350 kb region, covered by PCR fragments at high density. The adjacent megabase on either side of the central region, shown at a 10 fold reduced scale, was covered by PCR fragments at decreasing density. PCR microarray fragments listed in Table 1, found at the edges of CENP-A, CENP-C and CENP-H domains, and the negative values within the first domain, are shown. The major and minor chromatin domains are shown by the rectangles. The tiling path of the unique sequenced regions of each bacterial artificial chromosome (BAC) and their overlaps are shown within the 350 kb region. The corresponding Repeat Masker data from the Human Genome Browser at UCSC and thegenes in the area are indicated [50].](https://pub-med-central-images-cdn.bioz.com/pub_med_central_ids_ending_with_3242/pmc02323242/pmc02323242__gb-2007-8-7-r148-2.jpg)
![qRT-PCR confirms two separate CenpA domains in the neocentromeric cell line BBB. (a) Quantitative real-time polymerase chain reaction (qRT-PCR) was performed on equal amounts of total DNA obtained from centromere protein (CENP)-A chromatin immunoprecipitation (ChIP) DNA and Input DNA from BBB cell line. The thirty-four PCR primer pairs used (shown as black lines in the x-axis) amplified fragments from 150 to 250 base pairs contained within the 350 kb neocentromere region (see Figure 2). Each primer pair was assayed in at least three independent CENP-A ChIP experiments. The qRT-PCR results for each primer pair were expressed on the y-axis as the fold enhancement between the CENP-A ChIP DNA and input DNA (= 1.93 ΔCt(CENP-A-Input) ) normalized to the value obtained for the positive control alpha satellite DNA primer pair (far right). The shaded region indicates the area determined to be the CENP-A domain in Figure 2. (b) The 34 qRT-PCR primer pairs and the 133 PCR products from this region on the PCR microarray (Figure 2) are shown. qRT-PCR primers that amplified products wholly contained within a PCR microarray fragment are indicated by numbers in parentheses; the rest are labeled alphabetically. Only qRT-PCR fragments shown in Table 1 are indicated; information for all other primers can be found in the Additional data file 3. CENP-A domains derived from the PCR microarray data are indicated. Genome coordinates correspond to the region of chr13 from the Human Genome Browser at UCSC (hg17) [50].](https://pub-med-central-images-cdn.bioz.com/pub_med_central_ids_ending_with_3242/pmc02323242/pmc02323242__gb-2007-8-7-r148-3.jpg)
