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@ARTICLE{Siqin:300141,
author = {S. Siqin$^*$ and E. Nikitina$^*$ and M. Rahbari$^*$ and C.
Ernst$^*$ and D. Krunic$^*$ and E. Birgin and C. Tessmer$^*$
and I. Hofmann$^*$ and N. Rahbari and T. Bund$^*$},
title = {{B}ovine {M}eat and {M}ilk {F}actor ({BMMF}) {P}rotein {I}s
{E}xpressed in {M}acrophages {S}pread {W}idely over the
{M}ucosa of {C}olorectal {C}ancer {P}atients.},
journal = {Cells},
volume = {14},
number = {6},
issn = {2073-4409},
address = {Basel},
publisher = {MDPI},
reportid = {DKFZ-2025-00632},
pages = {455},
year = {2025},
note = {#EA:D460#LA:D460#},
abstract = {Red meat consumption is considered a risk factor for
colorectal cancer (CRC) development and stimulated isolation
of plasmid-like DNA molecules from bovine serum and milk,
termed bovine meat and milk factors (BMMFs). BMMFs encode a
conserved replication protein (Rep). Increased populations
of Rep-expressing macrophages have been identified in the
peritumor of CRC patients and pre-cancerous tissues when
compared to the tissues of healthy individuals. This
supports the concept that BMMFs increase cancer risk by
indirect carcinogenesis, upon induction of chronic
inflammation. However, the spread of Rep+ immune cells in
tissues at greater distances from primary tumors has not yet
been assessed. Here, we immunohistologically analyzed the
presence of Rep+ immune cells in sets of tumor, peritumor
and, additionally, distant tissues of CRC patients (n = 13).
We identified consistently high numbers of BMMF-positive
macrophages in mucosal tissues at distances of as much as 25
cm away from the primary tumors, at levels comparable to
peritumors and associated with M2-like macrophage
polarization. The broad distribution of BMMFs suggests that
BMMF+ macrophages might already exist at stages of
pre-cancerous dysplasia or before. Quantification of BMMF
tissue expression during colonoscopy might help to
preventively stratify individuals at risk of developing
polyps/CRC and recommend them for enhanced surveillance
and/or changes in dietary lifestyle.},
keywords = {Colorectal Neoplasms: metabolism / Colorectal Neoplasms:
pathology / Humans / Macrophages: metabolism / Animals /
Cattle / Female / Male / Middle Aged / Aged / Intestinal
Mucosa: metabolism / Intestinal Mucosa: pathology / bovine
meat and milk factors (Other) / chronic inflammation (Other)
/ colorectal cancer (Other) / diet (Other) / indirect
carcinogenesis (Other) / macrophages (Other) / myeloid
immune checkpoint (Other)},
cin = {D460 / D440 / W210 / W170},
ddc = {570},
cid = {I:(DE-He78)D460-20160331 / I:(DE-He78)D440-20160331 /
I:(DE-He78)W210-20160331 / I:(DE-He78)W170-20160331},
pnm = {314 - Immunologie und Krebs (POF4-314)},
pid = {G:(DE-HGF)POF4-314},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:40136704},
pmc = {pmc:PMC11940877},
doi = {10.3390/cells14060455},
url = {https://inrepo02.dkfz.de/record/300141},
}