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https://www.readbyqxmd.com/read/28448663/prame-as-a-potential-target-for-immunotherapy-in-metastatic-uveal-melanoma
#1
Gülçin Gezgin, Sietse J Luk, Jinfeng Cao, Mehmet Dogrusöz, Dirk M van der Steen, Renate S Hagedoorn, Daniëlle Krijgsman, Pieter A van der Velden, Matthew G Field, Gregorius P M Luyten, Karoly Szuhai, J William Harbour, Ekaterina S Jordanova, Mirjam H M Heemskerk, Martine J Jager
Importance: Uveal melanoma (UM) is an intraocular primary malignant neoplasm that often gives rise to metastatic disease for which there are no effective therapies. A substantial proportion of UMs express the cancer-testis antigen PRAME (preferentially expressed antigen in melanoma), which can potentially be targeted by adoptive T-cell therapy. Objective: To determine whether there may be a rationale for PRAME-directed T-cell therapy for metastatic UM. Design, Setting, and Participants: An experimental study using a retrospective cohort of 64 patients with UM (median follow-up, 62 months) was conducted from January 8, 2015, to November 20, 2016, at the Leiden University Medical Center...
April 27, 2017: JAMA Ophthalmology
https://www.readbyqxmd.com/read/28446200/human-germ-stem-cell-specific-gene-tex19-influences-cancer-cell-proliferation-and-cancer-prognosis
#2
Vicente Planells-Palop, Ali Hazazi, Julia Feichtinger, Jana Jezkova, Gerhard Thallinger, Naif O Alsiwiehri, Mikhlid Almutairi, Lee Parry, Jane A Wakeman, Ramsay J McFarlane
BACKGROUND: Cancer/testis (CT) genes have expression normally restricted to the testis, but become activated during oncogenesis, so they have excellent potential as cancer-specific biomarkers. Evidence is starting to emerge to indicate that they also provide function(s) in the oncogenic programme. Human TEX19 is a recently identified CT gene, but a functional role for TEX19 in cancer has not yet been defined. METHODS: siRNA was used to deplete TEX19 levels in various cancer cell lines...
April 26, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/28438869/correlation-between-expression-of-the-cancer-testis-antigen-kk-lc-1-and-helicobacter-pylori-infection-in-gastric-cancer
#3
Takashi Fukuyama, Nobue Futawatari, Yoshinobu Ichiki, Akiko Shida, Taiga Yamazaki, Yatsushi Nishi, Hiroshi Nonoguchi, Yoshihito Takahashi, Hitoshi Yamazaki, Noritada Kobayashi
BACKGROUND/AIM: Our previous study indicated that Kita-kyushu lung cancer antigen-1 (KK-LC-1) is a cancer/testis antigen (CTA) expressed in 82% of gastric cancer cases. Here, we investigated the relationship between KK-LC-1 expression and Helicobacter pylori infection in Japanese patients with gastric cancer. PATIENTS AND METHODS: We examined CTA expression in 25 surgical gastric cancer specimens and anti-H. pylori IgGs in the serum of each patient. RESULTS: KK-LC-1 was expressed in 80% of tumor samples, markedly higher than melanoma antigen gene (MAGE)-A1, MAGE-A3, MAGE-A4, synovial sarcoma, X breakpoint 4 (SSX4) and New York esophageal squamous cell carcinoma-1 (NY-ESO-1)...
May 2017: In Vivo
https://www.readbyqxmd.com/read/28435402/synchronous-bilateral-testis-cancer-clinical-and-oncological-management
#4
Davide Campobasso, Stefania Ferretti, Antonio Frattini
Synchronous bilateral testis cancer (SBTC) is a rare event. It represents only 0.5-1% of all new cases of testicular cancer. Patients with this disease require careful management for psychological, oncological, and medical problems. We performed a PubMed search for all series that reported SBTC. We considered only articles in English, reporting on more than three cases. We also performed an analysis of the reported evidence regarding testosterone replacement and surgical treatment. We found 10 studies satisfying inclusion criteria for a total of 73 patients...
2017: Contemporary Oncology Współczesna Onkologia
https://www.readbyqxmd.com/read/28430646/immunotherapeutic-target-expression-on-breast-tumors-can-be-amplified-by-hormone-receptor-antagonism-a-novel-strategy-for-enhancing-efficacy-of-targeted-immunotherapy
#5
Ritika Jaini, Matthew G Loya, Charis Eng
Immunotherapy has historically been successful in highly antigenic tumors but has shown limited therapeutic efficacy in non-antigenic tumors such as breast cancers. Our previous studies in autoimmunity have demonstrated that increased antigen load within a tissue enhances immune reactivity against it. We therefore hypothesized that enhancing expression of target proteins on breast tumors can increase efficacy of targeted immunotherapy. We hypothesized that antagonism of the estrogen receptor (ER) can increase expression of targets that are hormonally regulated and facilitate enhanced tumor recognition by targeted immunotherapy...
March 1, 2017: Oncotarget
https://www.readbyqxmd.com/read/28422722/the-clinical-value-regulatory-mechanisms-and-gene-network-of-the-cancer-testis-gene-stk31-in-pancreatic-cancer
#6
Kai Zhang, Zipeng Lu, Yi Zhu, Lei Tian, Jingjing Zhang, Chunhua Xi, Wentao Gao, Kuirong Jiang, Yi Miao
We aimed to identify STK31 as a cancer-testis (CT) gene and to explore its potential clinical value, regulatory mechanisms, and gene network in pancreatic cancer (PC). Gene expression data were generated from normal organ samples and pancreatic cancer samples from three public databases. STK31 expression patterns in normal and PC tissues were identified, and we explored its regulatory mechanisms. Gene ontology (GO) and pathway analyses of STK31-related genes were performed and an STK31 protein-protein interaction (PPI) network was constructed...
April 4, 2017: Oncotarget
https://www.readbyqxmd.com/read/28420814/cell-adhesion-molecule-1-cadm1-expressed-on-adult-t-cell-leukemia-lymphoma-cells-is-not-involved-in-the-interaction-with-macrophages
#7
Yoshihiro Komohara, Chaoya Ma, Hiromu Yano, Cheng Pan, Hasita Horlad, Yoichi Saito, Koji Ohnishi, Yukio Fujiwara, Yutaka Okuno, Kisato Nosaka, Shunsuke Shimosaki, Kazuhiro Morishita, Masao Matsuoka, Tomohiko Wakayama, Motohiro Takeya
Cell adhesion molecule 1 (CADM1) is a cell adhesion molecule that is expressed in brain, liver, lung, testis, and some kinds of cancer cells including adult T-cell leukemia/lymphoma (ATLL). Recent studies have indicated the involvement of CADM1 in cell-cell contact between cytotoxic T-lymphocytes and virus infected cells. We previously reported that cell-cell interaction between lymphoma cells and macrophages induces lymphoma cell proliferation. In the present study, we investigated whether CADM1 is associated with cell-cell interaction between several human lymphoma cell lines and macrophages...
April 18, 2017: Journal of Clinical and Experimental Hematopathology: JCEH
https://www.readbyqxmd.com/read/28412729/stk31-as-novel-biomarker-of-metastatic-potential-and-tumorigenicity-of-colorectal-cancer
#8
Lan Zhong, Jing Liu, Yedong Hu, Wei Wang, Fei Xu, Wen Xu, Junyi Han, Ewelina Biskup
PURPOSE: Colorectal cancer (CRC) is the fifth most common cause of cancer deaths in China and fourth worldwide. Metastatic dissemination of primary tumors is considered main cause for CRC related mortality. The serine-threonine kinase 31 (STK31) gene is a novel cancer testis (CT) antigen. It was found significantly highly expressed in gastrointestinal cancers. In our study we aimed to analyze the correlation between STK31 expression patterns and metastasization, tumor stage and grade in CRC patients...
April 11, 2017: Oncotarget
https://www.readbyqxmd.com/read/28407756/alpha-fetoprotein-elevation-in-nut-midline-carcinoma-a-case-report
#9
Lorenzo D'Ambrosio, Erica Palesandro, Marina Moretti, Giuseppe Pelosi, Alessandra Fabbri, Fabrizio Carnevale Schianca, Massimo Aglietta, Giovanni Grignani
BACKGROUND: Nuclear protein in testis (NUT) midline carcinoma is a rarely diagnosed and potentially under-recognized type of squamous carcinoma that is considered one of the most aggressive human solid tumors. Alpha-fetoprotein elevation has been associated with chronic liver diseases and a limited number of cancers. In particular, in presence of a mediastinal mass in a young man, alpha-fetoprotein elevation is considered nearly pathognomonic of a non-seminoma germ-cell tumor. CASE PRESENTATION: A 22-year old man without any comorbidity was diagnosed with a large mediastinal mass with skeletal and lymph node metastases...
April 13, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28393243/multiple-therapeutic-peptide-vaccines-for-patients-with-advanced-gastric-cancer
#10
Yoshiyuki Fujiwara, Kaoru Okada, Takeshi Omori, Keijiro Sugimura, Hiroshi Miyata, Masayuki Ohue, Shogo Kobayashi, Hidenori Takahashi, Hiroyuki Nakano, Chie Mochizuki, Katsuji Shimizu, Masahiko Yano, Yusuke Nakamura, Masaki Mori, Yuichiro Doki
We performed a clinical trial using HLA-A24-binding peptide vaccines containing a combination of novel cancer-testis antigens and anti-angiogenic peptides for advanced gastric cancer (GC). Thirty-five GC patients who had shown resistance to the standard therapy were enrolled in this clinical trial using vaccinations with a mixture of multiple peptides derived from DEPDC1, URLC10, FoxM1, Kif20A and VEGFR1. The safety, the overall survival (OS), and the immunological responses based on an ELISPOT assay were determined to assess differences in patients who were HLA-A24-positive [24(+)] and HLA-A24-negative [24(-)]...
May 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/28392127/ny-eso-1-expression-predicts-an-aggressive-phenotype-of-ovarian-cancer
#11
J Brian Szender, Antonios Papanicolau-Sengos, Kevin H Eng, Anthony J Miliotto, Amit A Lugade, Sacha Gnjatic, Junko Matsuzaki, Carl D Morrison, Kunle Odunsi
OBJECTIVES: NY-ESO-1 is a cancer testis antigen and a promising target for immunotherapy. The purpose of this study was to determine the expression frequency, immunogenicity, and clinical impact of NY-ESO-1 in ovarian cancer. METHODS: Immunohistochemistry (IHC), reverse-transcription polymerase chain reaction (RT-PCR), and quantitative-PCR (qRT-PCR) were utilized in an ovarian cancer (including Fallopian tube and primary peritoneal cancers) patient cohort; humoral responses against NY-ESO-1 were determined by ELISA...
April 6, 2017: Gynecologic Oncology
https://www.readbyqxmd.com/read/28392126/cancer-testis-antigen-expression-is-shared-between-epithelial-ovarian-cancer-tumors
#12
Arlene E Garcia-Soto, Taylor Schreiber, Natasa Strbo, Parvin Ganjei-Azar, Feng Miao, Tulay Koru-Sengul, Fiona Simpkins, Wilberto Nieves-Neira, Joseph Lucci, Eckhard R Podack
No abstract text is available yet for this article.
April 6, 2017: Gynecologic Oncology
https://www.readbyqxmd.com/read/28379541/resistance-to-apoptosis-and-autophagy-leads-to-enhanced-survival-in-sertoli-cells
#13
Ferial Aslani, Tim Sebastian, Miguel Keidel, Suada Fröhlich, Hans-Peter Elsässer, Hans-Christian Schuppe, Jörg Klug, Poornima Mahavadi, Monika Fijak, Martin Bergmann, Andreas Meinhardt, Sudhanshu Bhushan
STUDY QUESTION: What is the underlying mechanism of Sertoli cell (SC) resistance to cell death? SUMMARY ANSWER: High expression of pro-survival B cell lymphoma-2 (BCL2) proteins and inhibition of apoptosis and autophagy prolongs SC survival upon exposure to stress stimuli. WHAT IS KNOWN ALREADY: In human and in experimental models of orchitis, tolerogenic SC survive stress conditions, while germ cells undergo massive apoptosis. In general, non-dividing highly differentiated cells tend to resist stress conditions for a longer time by favoring activation of pro-survival mechanisms and inhibition of cell death pathways...
April 3, 2017: Molecular Human Reproduction
https://www.readbyqxmd.com/read/28379293/cell-autonomous-requirement-for-mammalian-target-of-rapamycin-mtor-in-spermatogonial-proliferation-and-differentiation-in-the-mouse4
#14
Nicholas D Serra, Ellen K Velte, Bryan A Niedenberger, Oleksander Kirsanov, Christopher B Geyer
Spermatogonial stem cells (SSCs) must balance self-renewal with production of transit-amplifying progenitors that differentiate in response to retinoic acid (RA) before entering meiosis. This self-renewal vs. differentiation fate decision is critical for maintaining tissue homeostasis, as imbalances cause defects that can lead to human testicular cancer or infertility. Little is currently known about the program of differentiation initiated by RA, and the pathways and proteins involved are poorly defined. We recently found that RA stimulation of the PI3K/AKT/mTOR kinase signaling pathway is required for differentiation, and that short-term inhibition of mTOR complex 1 (mTORC1) by rapamycin blocked spermatogonial differentiation in vivo and prevented RA-induced translational activation...
March 31, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/28370175/expression-of-cancer-testis-antigens-in-salivary-gland-carcinomas-with-reference-to-mage-a-and-ny-eso-1-expression-in-adenoid-cystic-carcinoma
#15
Shintaro Beppu, Yohei Ito, Kana Fujii, Kousuke Saida, Hisashi Takino, Ayako Masaki, Takayuki Murase, Kimihide Kusafuka, Yoshiyuki Iida, Tetsuro Onitsuka, Yasushi Yatabe, Nobuhiro Hanai, Yasuhisa Hasegawa, Kei Ijichi, Shingo Murakami, Hiroshi Inagaki
BACKGROUND: Salivary gland carcinomas comprise a group of heterogeneous lesions with complex clinicopathological characteristics and distinct biological behaviors. However, recurrent or metastatic tumors are difficult to treat with currently available therapies. Cancer-testis antigens (CTAs) are detected in cancer cells but not in healthy normal tissues, with the exception of gametogenic tissues. CTAs are highly immunogenic proteins and thus represent ideal targets for cytotoxic T-lymphocyte-mediated specific immune therapy...
March 28, 2017: Histopathology
https://www.readbyqxmd.com/read/28368923/reporting-and-staging-of-testicular-germ-cell-tumors-the-international-society-of-urological-pathology-isup-testicular-cancer-consultation-conference-recommendations
#16
Clare Verrill, Asli Yilmaz, John R Srigley, Mahul B Amin, Eva Compérat, Lars Egevad, Thomas M Ulbright, Satish K Tickoo, Daniel M Berney, Jonathan I Epstein
The International Society of Urological Pathology held a conference devoted to issues in testicular and penile pathology in Boston in March 2015, which included a presentation and discussion led by the testis microscopic features working group. This conference focused on controversies related to staging and reporting of testicular tumors and was preceded by an online survey of the International Society of Urological Pathology members. The survey results were used to initiate discussions, but decisions were made by expert consensus rather than voting...
March 31, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28367242/the-nor1-oscp1-proteins-in-cancer-from-epigenetic-silencing-to-functional-characterization-of-a-novel-tumor-suppressor
#17
REVIEW
Mei Yi, Jianbo Yang, Wenjuan Li, Xiaoling Li, Wei Xiong, James B McCarthy, Guiyuan Li, Bo Xiang
NOR1 (Oxidored-nitro domain-containing protein 1), also known as OSCP1, was first identified in nasopharyngeal carcinoma (NPC) cells in 2003. NOR1 is evolutionarily conserved among species with its expression is restricted to brain, testis and respiratory epithelial cells. NOR1 was downregulated in NPC and the downregulation associates with poor prognosis. Previous study demonstrated that hypermethylation of NOR1 promoter was observed in NPC and hematological malignancies, which has been believed to be the main epigenetic cause for NOR1 silencing in these cancers...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/28362316/cancer-testis-antigens-smart-biomarkers-for-diagnosis-and-prognosis-of-prostate-and-other-cancers
#18
Prakash Kulkarni, Vladimir N Uversky
A clinical dilemma in the management of prostate cancer (PCa) is to distinguish men with aggressive disease who need definitive treatment from men who may not require immediate intervention. Accurate prediction of disease behavior is critical because radical treatment is associated with high morbidity. Here, we highlight the cancer/testis antigens (CTAs) as potential PCa biomarkers. The CTAs are a group of proteins that are typically restricted to the testis in the normal adult but are aberrantly expressed in several types of cancers...
March 31, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28356959/effect-of-cancer-testis-antigen-ny-sar-35-on-the-proliferation-migration-and-invasion-of-cancer-cells
#19
Myung-Ha Song, Ye-Rin Kim, Jae-Ho Bae, Chang-Hun Lee, Sang-Yull Lee
NY-SAR-35 is a cancer/testis (CT) antigen that was identified by serological analysis of recombinant complementary DNA expression libraries. The gene encoding NY-SAR-35 is located on the × chromosome and is aberrantly expressed in a number of cancer types and germ cells, such as those in the testes, but not in normal tissue. It has been reported that treatment with a demethylating agent induced the expression of NY-SAR-35 in several types of cancer cells. However, the function of NY-SAR-35 in cancer remains undetermined...
February 2017: Oncology Letters
https://www.readbyqxmd.com/read/28356500/a-novel-testis-specific-protein-pramey-is-involved-in-spermatogenesis-in-cattle
#20
Wan-Sheng Liu, Yaqi Zhao, Chen Lu, Gang Ning, Yun Ma, Francisco Diaz, Michael O'Connor
PRAME is a cancer/testis antigen that is predominantly expressed in normal testicular tissues and a variety of tumors. The function of the PRAME family in spermatogenesis remains unknown. This study was designed to characterize the Y-linked PRAME (PRAMEY) protein during spermatogenesis in cattle. We found that PRAMEY is a novel male germ cell-specific, and a germinal granule-associated protein that is expressed in spermatogenic cells during spermatogenesis. The intact PRAMEY protein (58 kDa) was detected in different ages of testes but not in epididymal spermatozoa...
March 29, 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
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