scholarly journals DOG1 expression is in common human tumors: A tissue microarray study on more than 15,000 tissue samples

2021 ◽  
Vol 156 (Supplement_1) ◽  
pp. S108-S109
Author(s):  
K Jansen ◽  
S Steurer

Abstract Introduction/Objective Introduction: DOG1 (Discovered on GIST1) is a voltage-gated calcium-activated chloride and bicarbonate channel that is highly expressed in interstitial cells of Cajal and in gastrointestinal stromal tumors (GIST) derived from Cajal cells. Methods/Case Report Methods: To systematically determine in what tumor entities and normal tissue types DOG1 may be further expressed, a tissue microarray (TMA) containing 15,965 samples from 121 different tumor types and subtypes as well as 608 samples of 76 different normal tissue types was analyzed by immunohistochemistry. Results (if a Case Study enter NA) Results: DOG1 immunostaining was found in 67 tumor types including GIST (95.7%), esophageal squamous cell carcinoma (31.9%), pancreatic ductal adenocarcinoma (33.6%), adenocarcinoma of the Papilla Vateri (20%), squamous cell carcinoma of the vulva (15.8%) and the oral cavity (15.3%), mucinous ovarian cancer (15.3%), esophageal adenocarcinoma (12.5%), endometrioid endometrial cancer (12.1%), neuroendocrine carcinoma of the colon (11.1%) and diffuse gastric adenocarcinoma (11%). Low level-DOG1 immunostaining was seen in 17 additional tumor entities. DOG1 expression was unrelated to histopathological parameters of tumor aggressiveness and/or patient prognosis in cancers of the breast (n=1,002), urinary bladder (975), ovary (469), endometrium (173), stomach (233), and thyroid gland (512). Conclusion High DOG1 expression was linked to estrogen receptor expression in breast cancer (p<0.0001) and absence of HPV infection in squamous cell carcinomas (p=0.0008). In conclusion, our data identify several tumor entities that can show DOG1 expression levels at similar levels as in GIST. Although DOG1 is tightly linked to a diagnosis of GIST in spindle cell tumors, the differential diagnosis is much broader in DOG1 positive epithelioid neoplasms.

1994 ◽  
Vol 108 (4) ◽  
pp. 319-320 ◽  
Author(s):  
Desmond A. Nunez ◽  
Siân M. Astley ◽  
Fraser A. Lewis ◽  
Michael Wells

AbstractThe association of human papilloma viruses (HPV) with laryngopharyngeal squamous cell carcinoma is under investigation. The suitability of control tissue in the reported series, invariably obtained from histologically normal tissue adjacent to a squamous cell carcinoma or from patients with benign laryngopharyngeal disease, is questionable. The present study determined the prevalence of HPV in a series of normal larynges.Twelve autopsy larynges were collected. DNA was obtained by SDS proteinase K digestion. Evidence of HPV infection was documented by the polymerase chain reaction using oligonulceotide primers complementary to sequences in the E6 region of HPV types 11, 16 and 18.Four female and eight male larynges, mean age 65 years (sd=16 years) were collected 72 hours postmortem (median value). HPV type 11 was isolated from three specimens. A 25 per cent prevalence rate for HPV 11 was found. No other HPV types were isolated.


2021 ◽  
Vol 20 ◽  
pp. 153303382110433
Author(s):  
Sebastian Dwertmann Rico ◽  
Moritz Mahnken ◽  
Franziska Büscheck ◽  
David Dum ◽  
Andreas M. Luebke ◽  
...  

Background: Mucin 5AC (MUC5AC) belongs to the glycoprotein family of secreted gel-forming mucins and is physiologically expressed in some epithelial cells. Studies have shown that MUC5AC is also expressed in several cancer types suggesting a potential utility for the distinction of tumor types and subtypes. Methods: To systematically determine MUC5AC expression in normal and cancerous tissues, a tissue microarray containing 10 399 samples from 111 different tumor types and subtypes as well as 608 samples of 76 different normal tissue types was analyzed by immunohistochemistry. Results: MUC5AC was expressed in normal mucus-producing cells of various organs. At least weak MUC5AC positivity was seen in 44 of 111 (40%) tumor entities. Of these 44 tumor entities, 28 included also tumors with strong positivity. MUC5AC immunostaining was most commonly seen in esophageal adenocarcinoma (72%), colon adenoma (62%), ductal adenocarcinoma of the pancreas (64%), mucinous carcinoma of the ovary (46%), diffuse gastric adenocarcinoma (44%), pancreatic ampullary adenocarcinoma (41%), intestinal gastric adenocarcinoma (39%), and bronchioloalveolar carcinoma (33%). Clinically relevant tumors with complete or almost complete absence of MUC5AC staining included small cell carcinoma of the lung (0% of 17), clear cell renal cell carcinoma (0% of 507), papillary thyroid carcinoma (0% of 359), breast cancer (2% of 1097), prostate cancer (2% of 228), soft tissue tumors (0.1% of 968), and hematological neoplasias (0% of 111). Conclusion: The highly standardized analysis of a broad range of cancers identified a ranking order of tumors according to their relative prevalence of MUC5AC expression.


2019 ◽  
Vol 45 (2) ◽  
pp. e85
Author(s):  
L. Bognar ◽  
S. Bellyei ◽  
I. Hegedus ◽  
K. Gombos ◽  
O.P. Horvath ◽  
...  

2007 ◽  
Vol 4 (2) ◽  
pp. 73-85 ◽  
Author(s):  
Katsumi Muraoka ◽  
Kazuhiko Okumura ◽  
Hiroyuki Kitajo ◽  
Hidetaka Kato ◽  
Makoto Arisue

2014 ◽  
Vol 9 (1) ◽  
pp. 7 ◽  
Author(s):  
Anthony Mwololo ◽  
Joshua Nyagol ◽  
Emily Rogena ◽  
Willis Ochuk ◽  
Mary Kimani ◽  
...  

2021 ◽  
pp. 1-4
Author(s):  
Mangalore Amith Shenoy ◽  
Lydia Winnicka ◽  
Leili Mirsadraei ◽  
Douglas Marks

Squamous cell carcinoma of the anal canal remains rare, with metastatic disease even less commonly reported. We present a case of a patient with both a prior history of squamous cell carcinoma of the anal canal as well as breast cancer, who was without evidence of disease for 1 year. She was subsequently found to have FDG-avid mediastinal lymphadenopathy, initially assumed to be related to her more recent breast cancer. However, a biopsy confirmed recurrent anal cancer, with HPV infection. This represents a novel site of spread for anal cancer, one not yet reported in the literature.


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