Journal of Pathology and Translational Medicine

Original Article

Association of PTTG1 expression with invasiveness of non-functioning pituitary adenomas: Su Jung Kum, Hye Won Lee, Soon Gu Kim, Hyungsik Park, Ilseon Hwang, Sang Pyo Kim; J Pathol Transl Med. 2022;56(1):22-31. Published online October 15, 2021; DOI: https://doi.org/10.4132/jptm.2021.08.31

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Background
Pituitary tumor transforming gene 1 (PTTG1), paired-like homeodomain 2 (PITX2), and galectin-3 have been widely studied as predictive biomarkers for various tumors and are involved in tumorigenesis and tumor progression. We evaluated the usefulness of PTTG1, PITX2, and galectin-3 as predictive biomarkers for invasive non-functioning pituitary adenomas (NFPAs) by determining the relationship between the expressions of these three proteins and the invasiveness of the NFPAs. We also investigated whether PTTG1, E-cadherin, and Ki-67, which are known to be related to each other, show a correlation with NFPA features.
Methods
A retrospective study was conducted on 87 patients with NPFAs who underwent surgical removal. The NFPAs were classified into three groups based on magnetic resonance imaging findings of suprasellar extension and cavernous sinus invasion. Immunohistochemical staining for PTTG1, PITX2, galectin-3, E-cadherin, and Ki-67 was performed on tissue microarrays.
Results
PTTG1 expression showed a statistically significant correlation with the invasiveness of NFPAs, whereas PITX2 and galectin-3 did not have a relationship with the invasiveness of NFPAs. Moreover, there was no association among PTTG1, E-cadherin, and Ki-67 expression.
Conclusions
PTTG1 has the potential to serve as a predictive biomarker for invasive NFPA. Furthermore, this study may serve as a reference for the development of PTTG1-targeted therapeutic agents.

Citations

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High-throughput Screening for Cushing Disease: Therapeutic Potential of Thiostrepton via Cell Cycle Regulation
Takuro Hakata, Ichiro Yamauchi, Daisuke Kosugi, Taku Sugawa, Haruka Fujita, Kentaro Okamoto, Yohei Ueda, Toshihito Fujii, Daisuke Taura, Nobuya Inagaki
Endocrinology.2024;[Epub] CrossRef
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Lorenzo Ugga, Raduan Ahmed Franca, Alessandra Scaravilli, Domenico Solari, Sirio Cocozza, Fabio Tortora, Luigi Maria Cavallo, Marialaura Del Basso De Caro, Andrea Elefante
Neuroradiology.2023; 65(4): 675. CrossRef
A comprehensive characterisation of phaeochromocytoma and paraganglioma tumours through histone protein profiling, DNA methylation and transcriptomic analysis genome wide
Prodromos Chatzikyriakou, Dimitria Brempou, Mark Quinn, Lauren Fishbein, Roberta Noberini, Ioannis N. Anastopoulos, Nicola Tufton, Eugenie S. Lim, Rupert Obholzer, Johnathan G. Hubbard, Mufaddal Moonim, Tiziana Bonaldi, Katherine L. Nathanson, Louise Izat
Clinical Epigenetics.2023;[Epub] CrossRef
Expression and clinical significance of Cathepsin K and MMPs in invasive non-functioning pituitary adenomas
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Review

Imaging features of breast cancer molecular subtypes: state of the art: Nariya Cho; J Pathol Transl Med. 2021;55(1):16-25. Published online November 9, 2020; DOI: https://doi.org/10.4132/jptm.2020.09.03

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Abstract PDF

Characterization of breast cancer molecular subtypes has been the standard of care for breast cancer management. We aimed to provide a review of imaging features of breast cancer molecular subtypes for the field of precision medicine. We also provide an update on the recent progress in precision medicine for breast cancer, implications for imaging, and recent observations in longitudinal functional imaging with radiomics.

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Van Thi Nguyen, Duc Huu Duong, Quang Thai Nguyen, Duy Thai Nguyen, Thi Linh Tran, Tra Giang Duong
European Journal of Radiology Open.2024; 13: 100585. CrossRef
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Brigitte L Cochran, Sara Eliseo, Austin Vaughn, Tamryn L Van Der Horn, Enzo Ferrara, Jamie Edwards
Cureus.2024;[Epub] CrossRef
Pushing the envelope in breast conserving surgery − is multiple-wire localization (3 or more wires) associated with increased risk of compromised margins and long-term recurrence?
Orit Golan, Marian Khatib, Tehillah S. Menes, Vivianne A.R. Freitas, Rivka Kessner, Rina Neeman, Michal Mauda-Havakuk, Diego Mercer, Yoav Amitai
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European Journal of Radiology.2024; 178: 111649. CrossRef
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Oana Maria Burciu, Ioan Sas, Tudor-Alexandru Popoiu, Adrian-Grigore Merce, Lavinia Moleriu, Ionut Marcel Cobec
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J.D. Akwo, P. D. (Yun) Trieu, M.L. Barron, T. Reynolds, S.J. Lewis
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Kai Huang, James W. Jakub, Sarah A. McLaughlin
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Francesca Galati, Veronica Rizzo, Rubina Manuela Trimboli, Endi Kripa, Roberto Maroncelli, Federica Pediconi
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Original Articles

Therapeutic Effects of Umbilical Cord Blood Derived Mesenchymal Stem Cell-Conditioned Medium on Pulmonary Arterial Hypertension in Rats: Jae Chul Lee, Choong Ik Cha, Dong-Sik Kim, Soo Young Choe; J Pathol Transl Med. 2015;49(6):472-480. Published online October 16, 2015; DOI: https://doi.org/10.4132/jptm.2015.09.11; Retraction in: J Pathol Transl Med 2016;50(4):325

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Copy Number Alterations of BCAS1 in Squamous Cell Carcinomas.: Yu Im Kim, Ahwon Lee, Jennifer Kim, Bum Hee Lee, Sung Hak Lee, Suk Woo Nam, Sug Hyung Lee, Won Sang Park, Nam Jin Yoo, Jung Young Lee, Sang Ho Kim, Su Young Kim; Korean J Pathol. 2011;45(3):271-275.; DOI: https://doi.org/10.4132/KoreanJPathol.2011.45.3.271

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Abstract PDF

BACKGROUND
Breast carcinoma amplified sequence 1 (BCAS1), located in 20q13, is amplified and overexpressed in breast cancers. Even though BCAS1 is expected to be an oncogene candidate, its contribution to tumorigenesis and copy number status in other malignancies is not reported. To elucidate the role of BCAS1 in squamous cell carcinomas, we investigated the copy number status and expression level of BCAS1 in several squamous cell carcinoma cell lines, normal keratinocytes and primary tumors.
METHODS
We quantitated BCAS1 gene by real-time polymerase chain reaction (PCR). Expression level of BCAS1 was measured by real-time reverse transcription-PCR and immunoblot.
RESULTS
Seven (88%) of 8 squamous cell carcinoma cell lines showed copy number gain of BCAS1 with various degrees. BCAS1 gene in primary tumors (73%) also showed copy number gain. However, expression level did not show a linear correlation with copy number changes.
CONCLUSIONS
We identified copy number gain of BCAS1 in squamous cell carcinomas. Due to lack of linear correlation between copy numbers of BCAS1 and its expression level, we could not confirm that the overexpression of BCAS1 is a common finding in squamous cell carcinoma cell lines. However, this study shows that the copy number gain of BCAS1 is a common finding in squamous cell carcinomas.

Citations

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Electrochemical Approaches for Preparation of Tailor-Made Amino Acids
Nana Wang, Jingcheng Xu, Haibo Mei, Hiroki Moriwaki, Kunisuke Izawa, Vadim A. Soloshonok, Jianlin Han
Chinese Journal of Organic Chemistry.2021; 41(8): 3034. CrossRef

Identification of Differentially Expressed Genes from Serum Deprived p388D1 Cells.: Su Young Kim, Sang Ho Kim, Sug Hyung Lee, Nam Jin Yoo, Jung Young Lee, Choo Soung Kim; Korean J Pathol. 1998;32(7):488-493.

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Abstract: This experiment is designed to find differentially expressed genes in p388D1 cells that are specific for the serum deprived state. Serum starvation induces cells to enter the quiscent state in the cell cycle and is used to arrest cell growth or synchronize the cell cycle. Differential display and ribonuclease protection assay were used to identify quantitative change in gene expression. Nineteen genes that showed a differential expression in the differential display were cloned and 7 clones were verified by a ribonuclease protection assay. Among the 7 clones clone-16 showed same expression pattern in comparison with the differential display. Deduced amino acid sequences of clone-16 had N-glycosylation motif and seems to be a secretory protein. Getting a full sequence of clone-16 is critical for the characterization of it.

Molecular Subtypes of Primary Glioblastoma Identified by Gene Expression Profiling.: Ghee Young Choe, S Mischel Paul; Korean J Pathol. 2002;36(5):328-337.

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Abstract PDF: BACKGROUND
The over-expression of the epidermal growth factor receptor (EGFR) occurs in nearly 50% of primary glioblastoma multiforme (GBM). Disruption of multiple signaling pathways is a critical factor in regulating the biological and clinical behavior of GBMs. In the future, therapy that specifically targets these disrupted pathways may represent the best potential treatment for patients with GBM. Large scale gene expression profiling provides a powerful approach to identify these disrupted genetic pathways and to uncover previously unknown molecular subtypes.
METHODS
We used 13 cases of primary GBM biopsy samples obtained from untreated patients and Affymetrix high-density oligonucleotide arrays to identify novel subsets of primary GBMs.
RESULTS
We showed that the expression of 90 genes differentiate EGFR+ from EGFR non-expressing (EGFR-) de novo GBMs, including expression of a number of potentially targetable molecules that act as growth/survival factors for GBMs. We also demonstrated the presence of two additional molecular subtypes of primary GBMs, including one characterized by the coordinate upregulation of contiguous genes on chromosome 12q13-15, which has a distinct global gene expression profile and expresses both astrocytic and oligodendroglial genes.
CONCLUSION
We have shown that there are EGFR+ primary GBMs, GBMs with coordinate upregulation of genes on chromosome 12q13-15, and primary GBMs lacking either alteration. Moreover, they have distinct transcriptional profiles. Our findings strongly suggest that the three GBMs are biologically different tumor types, despite their identical microscopic appearance, and provide an important first step in developing a molecular taxonomy of GBMs.

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