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@ARTICLE{Bund:167919,
author = {T. Bund$^*$ and E. Nikitina$^*$ and D. Chakraborty$^*$ and
C. Ernst$^*$ and K. Gunst$^*$ and B. Boneva$^*$ and C.
Tessmer$^*$ and N. Volk and A. Brobeil and A. Weber and M.
Heikenwalder$^*$ and H. zur Hausen$^*$ and E.-M. de
Villiers$^*$},
title = {{A}nalysis of chronic inflammatory lesions of the colon for
{BMMF} {R}ep antigen expression and {CD}68 macrophage
interactions.},
journal = {Proceedings of the National Academy of Sciences of the
United States of America},
volume = {118},
number = {12},
issn = {1091-6490},
address = {Washington, DC},
publisher = {National Acad. of Sciences},
reportid = {DKFZ-2021-00638},
pages = {e2025830118},
year = {2021},
note = {#EA:F200#LA:F200#},
abstract = {Consumption of Eurasian bovine meat and milk has been
associated with cancer development, in particular with
colorectal cancer (CRC). In addition, zoonotic infectious
agents from bovine products were proposed to cause colon
cancer (zur Hausen et al., 2009). Bovine meat and milk
factors (BMMF) are small episomal DNA molecules frequently
isolated from bovine sera and milk products, and recently,
also from colon cancer (de Villiers et al., 2019). BMMF are
bioactive in human cells and were proposed to induce chronic
inflammation in precancerous tissue leading to increased
radical formation: for example, reactive oxygen and reactive
nitrogen species and elevated levels of DNA mutations in
replicating cells, such as cancer progenitor cells (zur
Hausen et al., 2018). Mouse monoclonal antibodies against
the replication (Rep) protein of H1MSB.1 (BMMF1) were used
to analyze BMMF presence in different cohorts of CRC
peritumor and tumor tissues and cancer-free individuals by
immunohistochemistry and Western blot. BMMF DNA was isolated
by laser microdissection from immunohistochemistry-positive
tissue regions. We found BMMF Rep protein present
specifically in close vicinity of CD68+ macrophages in the
interstitial lamina propria adjacent to CRC tissues,
suggesting the presence of local chronic inflammation. BMMF1
(modified H1MSB.1) DNA was isolated from the same tissue
regions. Rep and CD68+ detection increased significantly in
peritumor cancer tissues when compared to tissues of
cancer-free individuals. This strengthens previous
postulations that BMMF function as indirect carcinogens by
inducing chronic inflammation and DNA damage in replicating
cells, which represent progress to progenitor cells for
adenoma (polyps) formation and cancer.},
keywords = {BMMF (Other) / antigen (Other) / chronic inflammation
(Other) / colon cancer (Other)},
cin = {F200 / W170 / F180},
ddc = {500},
cid = {I:(DE-He78)F200-20160331 / I:(DE-He78)W170-20160331 /
I:(DE-He78)F180-20160331},
pnm = {316 - Infektionen, Entzündung und Krebs (POF4-316)},
pid = {G:(DE-HGF)POF4-316},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:33723077},
doi = {10.1073/pnas.2025830118},
url = {https://inrepo02.dkfz.de/record/167919},
}