GLORIA

GEOMAR Library Ocean Research Information Access

You have 0 saved results.
Mark results and click the "Add To Watchlist" link in order to add them to this list.

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    In: Scientific Reports, Springer Science and Business Media LLC, Vol. 5, No. 1 ( 2015-03-31)
    Abstract: Immunofluorescent staining is an informative tool that is widely used in basic research. Automation of immunostaining improves reproducibility and quality of the results. Up to now, use of automation in immunofluorescent staining was mostly limited to one marker. Here we present tyramide signal amplification based method of multiple marker immunofluorescent detection, including detection of antibodies, raised in the same species, in tissue sections and cultured cells. This method can be beneficial for both basic and clinical research.
    Type of Medium: Online Resource
    ISSN: 2045-2322
    Language: English
    Publisher: Springer Science and Business Media LLC
    Publication Date: 2015
    detail.hit.zdb_id: 2615211-3
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
  • 2
    In: Journal for ImmunoTherapy of Cancer, BMJ, Vol. 9, No. Suppl 2 ( 2021-11), p. A80-A80
    Abstract: Despite years of studies and effort, the best strategies for treating prostate cancer and minimizing the complications of treatment remain unanswered questions. This gap in knowledge is partially due to the inability to dissect the complex heterogeneous tumor microenvironment (TME) and immune compartment. Spatially resolved molecular profiling of tumor sections will enhance our understanding of these complexities; However, it has been particularly challenging to do spatial molecular profiling in formalin-fixed paraffin-embedded (FFPE) tissues due to RNA degradation associated with this tissue-embedding method, which is routinely used in oncology workflows. The 10x Genomics Visium Spatial Gene Expression Solution for FFPE tissue overcomes these limitations, enabling spatial gene expression analysis of FFPE tissues combined with classical histology staining techniques such as Hematoxylin & Eosin (H & E) staining and immunofluorescence. Methods We used the 10x Genomics Visium Spatial Gene Expression Solution for FFPE tissue to analyze and resolve tumorigenic profiles in sections of normal and adenocarcinoma prostate samples. This assay incorporates ~5,000 molecularly barcoded, spatially encoded capture probes in spots over which the tissue is placed, imaged, and permeabilized. Imaging and sequencing data are processed together, resulting in a spatially resolved transcriptional readout. Results We profiled the whole transcriptome in normal, invasive adenocarcinoma, and acinar cell carcinoma FFPE human prostate tissues. Unsupervised clustering of the whole transcriptome data from normal, invasive adenocarcinoma, and acinar cell prostate carcinoma FFPE sections enabled the identification of 2 different regions, which had a well defined spatial distribution within the tissues. Well known prostate gland and prostate-cancer markers were over-expressed in the corresponding healthy and cancerous portions of the tissue, validating the performance of this method. We found that, while in healthy tissues basal cells and luminal cells are spatially organized, this pattern is lost in tumor samples, where luminal cells are greatly expanded in the invasive carcinoma region and do not colocalize with basal cells. Moreover, T lymphocytes are dispersed throughout the whole tissue section in the adenocarcinoma, while plasma B cells are located in the peritumoral region which could impact prognosis. Conclusions Spatial whole transcriptome analysis opens new opportunities for better understanding the TME which can not only help discover novel predictive tumor biomarkers, but also enable identifying cell type and tumor region specific drug targets.
    Type of Medium: Online Resource
    ISSN: 2051-1426
    Language: English
    Publisher: BMJ
    Publication Date: 2021
    detail.hit.zdb_id: 2719863-7
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
  • 3
    Online Resource
    Online Resource
    American Society of Clinical Oncology (ASCO) ; 2016
    In:  Journal of Clinical Oncology Vol. 34, No. 15_suppl ( 2016-05-20), p. 4112-4112
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 34, No. 15_suppl ( 2016-05-20), p. 4112-4112
    Type of Medium: Online Resource
    ISSN: 0732-183X , 1527-7755
    RVK:
    RVK:
    Language: English
    Publisher: American Society of Clinical Oncology (ASCO)
    Publication Date: 2016
    detail.hit.zdb_id: 2005181-5
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
  • 4
    In: The FASEB Journal, Wiley, Vol. 36, No. S1 ( 2022-05)
    Type of Medium: Online Resource
    ISSN: 0892-6638 , 1530-6860
    URL: Issue
    Language: English
    Publisher: Wiley
    Publication Date: 2022
    detail.hit.zdb_id: 1468876-1
    SSG: 12
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
  • 5
    In: Science Translational Medicine, American Association for the Advancement of Science (AAAS), Vol. 8, No. 367 ( 2016-11-30)
    Abstract: Targeting the androgen receptor (AR) pathway prolongs survival in patients with prostate cancer, but resistance rapidly develops. Understanding this resistance is confounded by a lack of noninvasive means to assess AR activity in vivo. We report intracellular accumulation of a secreted antigen–targeted antibody (SATA) that can be used to characterize disease, guide therapy, and monitor response. AR-regulated human kallikrein-related peptidase 2 (free hK2) is a prostate tissue–specific antigen produced in prostate cancer and androgen-stimulated breast cancer cells. Fluorescent and radio conjugates of 11B6, an antibody targeting free hK2, are internalized and noninvasively report AR pathway activity in metastatic and genetically engineered models of cancer development and treatment. Uptake is mediated by a mechanism involving the neonatal Fc receptor. Humanized 11B6, which has undergone toxicological tests in nonhuman primates, has the potential to improve patient management in these cancers. Furthermore, cell-specific SATA uptake may have a broader use for molecularly guided diagnosis and therapy in other cancers.
    Type of Medium: Online Resource
    ISSN: 1946-6234 , 1946-6242
    Language: English
    Publisher: American Association for the Advancement of Science (AAAS)
    Publication Date: 2016
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
  • 6
    In: Nature Cancer, Springer Science and Business Media LLC, Vol. 1, No. 1 ( 2020-01-13), p. 28-45
    Type of Medium: Online Resource
    ISSN: 2662-1347
    Language: English
    Publisher: Springer Science and Business Media LLC
    Publication Date: 2020
    detail.hit.zdb_id: 3005299-3
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
  • 7
    In: Cancer Research, American Association for Cancer Research (AACR), Vol. 80, No. 16_Supplement ( 2020-08-15), p. 5722-5722
    Abstract: Rare cell types in the prostate are reported to have stem cell properties based on organ regeneration potential following castration. Here, we use single cell RNA-seq (scRNA-Seq) to characterize these populations from the murine and human prostate in hormonally intact and androgen deprived conditions. Prostate cells from hormonally intact mice partitioned into one large subset of basal epithelial cells, another large subset of luminal epithelial cells, which we designate luminal 1 and two rare luminal populations: luminal 2 and luminal 3. Luminal cells that persist following castration display enhanced organoid regeneration potential, particularly within 1-2 days of androgen addback, and contribute equipotently to prostatic regeneration as revealed by lineage tracing. This regeneration is mediated, in part, through the orchestrated expression of Nrg2, Igf1, Fgf10 and Rspo3 by distinct populations of androgen-responsive mesenchymal and smooth muscle cells. Thus, luminal cells that persist post-castration undergo a cell state change that primes a proliferative response to microenvironment signals, analogous to other models of tissue injury such as liver damage. Citation Format: Wouter Karthaus, Matan Hofree, Danielle Choi, Eliot L. Linton, Mesruh Turkekul, Alborz Bejnood, Brett Carver, Anuhandra Gopalan, Vincent Laudone, Moshe Biton, Ojasvi Chaudhary, Ignas Masilionis, Linas Mazutis, Dana Pe'er, Aviv Regev, Charles Sawyers. Acquired stemness by luminal cells [abstract]. In: Proceedings of the Annual Meeting of the American Association for Cancer Research 2020; 2020 Apr 27-28 and Jun 22-24. Philadelphia (PA): AACR; Cancer Res 2020;80(16 Suppl):Abstract nr 5722.
    Type of Medium: Online Resource
    ISSN: 0008-5472 , 1538-7445
    RVK:
    RVK:
    Language: English
    Publisher: American Association for Cancer Research (AACR)
    Publication Date: 2020
    detail.hit.zdb_id: 2036785-5
    detail.hit.zdb_id: 1432-1
    detail.hit.zdb_id: 410466-3
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
  • 8
    In: Cancer Research, American Association for Cancer Research (AACR), Vol. 75, No. 15_Supplement ( 2015-08-01), p. LB-095-LB-095
    Abstract: Single-walled carbon nanotubes (SWCNT) are the subject of expanding research in the fields of targeted drug delivery and biosensors for disease treatment and monitoring. Functionalization of the SWCNT has proven to enhance the efficiency of distribution in the organism. The goal of this project was to establish and standardize methods of detection and characterization of the local tissue distribution of functionalized SWCNT in mouse models. We investigated the distribution and clearance of SWCNT in several tissues at various times after injection, up to one month. We also try to standardize methods of tracking SWCNT in both live and fixed tissues and image analysis protocols to quantify the distribution of the SWCNT in tissues. Another aim is to evaluate local immune response to SWCNT. We have analyzed liver, kidney, spleen, lung, brain, ovary, colon and small intestine from mice sacrificed 24 hours, 3 days, 7 days and 30 days following the injection of SWCNT. Our evaluation revealed that some organs, like kidney and small intestine, retain SWCNTs for at least a month. Slow rates of SWCNT removal from these organs do not appear to affect the overall health of the animals. We have made multiple attempts to image anesthetized live animals and detect SWCNTs in situ, however, the fluorescent signal emitted from SWCNT is too low to be reliably detected. The tissues must be fixed and signals amplified through immunodetection. Detection of immune markers, especially in immunologically active tissues such as spleen is a challenge for histological experiments, but is extremely important and such experiments is underway. Our findings of SWCNT persistence in certain organs 30 days post-injection is surprising and should be studied further. This observation opens further questions about the effect of long-term presence of SWCNT in some tissues and shows that careful investigation into the advantages and disadvantages of SWCNT retention is necessary. Citation Format: Afsar Barlas, Ke Xu, Yevgeniy Romin, Simone Alidori, Dmitry Yarilin, Ning Fan, Mesruh Turkekul, Sho Fujisawa, David A. Scheinberg, Michael R. McDevitt, Katia Manova-Todorova. Distribution and clearance of single-walled carbon nanotubes in mouse tissues: in situ detection, imaging and analysis. [abstract]. In: Proceedings of the 106th Annual Meeting of the American Association for Cancer Research; 2015 Apr 18-22; Philadelphia, PA. Philadelphia (PA): AACR; Cancer Res 2015;75(15 Suppl):Abstract nr LB-095. doi:10.1158/1538-7445.AM2015-LB-095
    Type of Medium: Online Resource
    ISSN: 0008-5472 , 1538-7445
    RVK:
    RVK:
    Language: English
    Publisher: American Association for Cancer Research (AACR)
    Publication Date: 2015
    detail.hit.zdb_id: 2036785-5
    detail.hit.zdb_id: 1432-1
    detail.hit.zdb_id: 410466-3
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
  • 9
    In: Cancer Research, American Association for Cancer Research (AACR), Vol. 82, No. 12_Supplement ( 2022-06-15), p. 3812-3812
    Abstract: Despite years of prostate cancer-related research, balancing the risk of treatment-derived complications with tumor progression risk remains a challenge. The inability to dissect heterogeneous tumor microenvironments (TME) and immune compartments partly contribute to this knowledge gap. Spatially resolved molecular tumor profiling can enhance our understanding of these complexities and bring us closer to personalized treatment; however, deploying such methods in oncology workflows is challenging as the prevalent tissue preservation technique of formalin fixation and paraffin embedding (FFPE) leads to RNA degradation.We used tissue-wide whole transcriptome analysis with 10x Genomics Visium Spatial Gene Expression Solution for FFPE tissue to resolve the tumor microenvironment of two prostate cancer samples. This assay incorporates ~5,000 molecularly barcoded, spatially encoded capture probes in spots over which the tissue is placed, imaged, and permeabilized. Imaging and sequencing data are processed together for spatially resolved transcriptional readout. We analyzed, and resolved whole transcriptome tumorigenic profiles in sections of normal, stage III invasive adenocarcinoma, and stage IV acinar cell carcinoma FFPE human prostate tissues. Computational clustering of the whole-transcriptome data automatically identified spatial gene expression patterns that aligned well with pathologist annotations. Well known prostate gland and prostate cancer markers were over-expressed in the corresponding healthy and cancerous tumor tissue, validating this method. The data showed that basal cells and luminal cells are spatially organized in healthy tissue while this pattern is lost in tumor samples as the luminal cells encroach the invasive carcinoma region and do not colocalize with basal cells. Moreover, T lymphocytes are dispersed throughout the whole tissue in the adenocarcinoma, while plasma B cells are in the peritumoral region which could impact prognosis. Using computational methods to infer CNV profiles, we identified aneuploidy regions and specific loci that may be driving the underlying genomic profile of the cancerous regions. We demonstrated that spatial whole transcriptome analysis can successfully resolve FFPE prostate samples. Whole-transcriptome data can rapidly confirm known patterns of cell type and tumor region-specific gene expression while giving a better understanding of the TME for drug target identification or biomarker discovery that may lead to patient-tailored therapies and improved patient stratification. Citation Format: Stephen Richardson Williams, Valeria Giangarra, Naishitha Anaparthy, Mesruh Turkekul, Paulius Mielinis, Caroline Gallant, Neil I. Weisenfeld, Sarah E. Taylor, James Chell. Spatial whole transcriptome profiling of the tumor microenvironment in FFPE prostate carcinoma using the Visium platform [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2022; 2022 Apr 8-13. Philadelphia (PA): AACR; Cancer Res 2022;82(12_Suppl):Abstract nr 3812.
    Type of Medium: Online Resource
    ISSN: 1538-7445
    Language: English
    Publisher: American Association for Cancer Research (AACR)
    Publication Date: 2022
    detail.hit.zdb_id: 2036785-5
    detail.hit.zdb_id: 1432-1
    detail.hit.zdb_id: 410466-3
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
  • 10
    In: Cancer Research, American Association for Cancer Research (AACR), Vol. 80, No. 11_Supplement ( 2020-06-01), p. A12-A12
    Abstract: Metastatic cancers relapse due to the emergence of stemlike clones capable of reversible quiescence, tumour reinitiation, and therapy resistance termed metastasis-initiating cells (MICs). The origins of MICs and their relationship to primary tumor-initiating cells are not known, largely due to a lack of representative models of MICS. To directly scrutinize MICs in patient metastases, we established organoid cultures from therapy-resistant, residual colorectal cancer (CRC) liver metastases of patients undergoing cancer surgery. We identify the neuronal cell adhesion molecule L1 (L1CAM) as a critical mediator and marker of colorectal cancer (CRC) MICs. L1CAM+ cells are quiescent in well-structured neoplastic glands in vivo, but when dissociated from their epithelial niche, drive organoid regeneration and xenograft tumor reinitiation. FACS-sorted L1CAM+ cells preferentially regenerate heterogeneous organoids containing both L1CAM+ and L1CAM- progeny. Single-cell mRNA sequencing of 10,000 cells from four patient-derived organoids reveals that L1CAMhigh MICs in human CRC organoids partially overlap with a subset of LGR5high cancer stem cells (CSCs). The number of LGR5-expressing cells decreases, while the number of L1CAM-expressing cells increases in metastases in comparison with primary tumors in patients. We show that L1CAM is required for organoid formation, intestinal epithelial repair following colitis in vivo, regeneration of orthotopic rectal tumors, and metastatic colonization of the liver, but is dispensable for intestinal epithelial homeostasis or tumor initiation. Mechanistically, disruption of intercellular epithelial contacts inhibits an E-cadherin-REST signaling axis and enables transcriptional derepression of L1CAM. Our work underscores the distinct requirements of the CSCs that initiate tumor growth and MICs that drive lethal metastatic relapse. We identify the loss of epithelial integrity, an obligatory step of metastasis, as a crucial molecular driver of the transcriptional plasticity required for the emergence of prometastatic traits. Further, we define L1CAM as a crucial vulnerability of MICs that could be exploited therapeutically to treat patients with metastatic cancer. Citation Format: Karuna Ganesh, Harihar Basnet, Yasemin Kaygusuz, Ashley Laughney, Lan He, Roshan Sharma, Kevin O'Rourke, Vincent Reuter, Yun-Han Huang, Ignas Masilionis, Mesruh Turkekul, Ekrem Er, Katja Manova-Todorova, Leonard Saltz, Martin Weiser, Julio Garcia-Aguilar, Richard Koche, Scott Lowe, Dana Peer, Jinru Shia, Joan Massague. L1CAM defines the regenerative origin of metastasis initiating cells in colorectal cancer [abstract]. In: Proceedings of the AACR Special Conference on the Evolving Landscape of Cancer Modeling; 2020 Mar 2-5; San Diego, CA. Philadelphia (PA): AACR; Cancer Res 2020;80(11 Suppl):Abstract nr A12.
    Type of Medium: Online Resource
    ISSN: 0008-5472 , 1538-7445
    RVK:
    RVK:
    Language: English
    Publisher: American Association for Cancer Research (AACR)
    Publication Date: 2020
    detail.hit.zdb_id: 2036785-5
    detail.hit.zdb_id: 1432-1
    detail.hit.zdb_id: 410466-3
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...