The levels of sICAM-1, sELAM-1, TNFα and sTNFR1 proteins in patients with colorectal adenocarcinoma in tumor and corresponding normal mucosa

Colorectal cancer is a common malign disease of the gastrointestinal tract. The cancer survival rate depends on the stage of the disease at detection time. It is well known that several molecular mechanisms are involved in cancer and some molecules might affect or modulate neogenesis. The aim of the study was to assess the levels of sICAM-1, sELAM-1, TNFα and sTNFR1 protein in tumor and corresponding normal mucosa in a group of patients with colorectal adenocarcinoma and also associations of these parameters with demographic and clinical profiles of the patients. Tissue specimens were obtained during resection of neoplastic lesions. Protein levels were assayed in tissue homogenates by ELISA. The protein level of sICAM-1 in tumor was significantly increased in comparison to the corresponding normal mucosa (80.06 ng/mg vs 69.53 ng/mg, p=0.02). Furthermore, a significant positive correlation between sICAM-1 and sTNFR1 proteins levels in tumor (rs=0.58, p<0.001) and in corresponding normal mucosa (rs=0.48, p<0.001) was found. Also, significant correlations in corresponding normal mucosa were found between sELAM-1 and sICAM-1 (rs=0.58, p<0.001) and between sTNFR1 and sELAM-1 (rs=0.57, p<0.001). Significantly higher level of sTNFR1 in corresponding normal mucosa samples of patients with distant metastases was observed (p=0.04). Obtained results suggest that sICAM-1 protein could be considered as colorectal cancer marker. Furthermore, sTNFR1 also has the potential to become a good prognostic marker used during monitoring of the patients. Nevertheless, a further study in this area to confirm this correlation is required.

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The activity of antioxidant enzymes in colorectal adenocarcinoma and corresponding normal mucosa.

Acta Biochimica Polonica ◽

10.18388/abp.2012_2090 ◽

2012 ◽

Vol 59 (4) ◽

Cited By ~ 11

Author(s):

Joanna Katarzyna Strzelczyk ◽

Tomasz Wielkoszyński ◽

Łukasz Krakowczyk ◽

Brygida Adamek ◽

Marzena Zalewska-Ziob ◽

...

Keyword(s):

Oxidative Stress ◽

Colorectal Cancer ◽

Superoxide Dismutase ◽

Antioxidant Enzymes ◽

Glutathione Peroxidase ◽

Colorectal Adenocarcinoma ◽

Average Distance ◽

Normal Mucosa ◽

Colorectal Carcinogenesis ◽

Tissue Homogenates

Oxidative stress is one of several factors which contribute to the development of colorectal carcinogenesis. The aim of the study was an assessment of the activity of antioxidant enzymes in tumour and corresponding normal distal mucosa in a group of patients with colorectal adenocarcinoma. Samples of tumour and corresponding normal mucosa were obtained during a resection of colorectal cancer from 47 patients aged between 26 and 82 years. The average distance of corresponding normal distal mucosa from the tumour was 4.49 cm. Activities of antioxidant enzymes: superoxide dismutase (SOD), glutathione reductase (GR), glutathione peroxidase (GPx), glutathione S-transferase (GST), and catalase (CAT) were measured in tissue homogenates. The patients were grouped according to the tumour stage (Duke's staging), grading, localization, and size of tumour, as well as age and sex. Statistical analysis was performed. The activity of SOD and GPx was considerably increased, while the activity of GST decreased significantly in tumour as compared with normal mucosa. GR activity in colorectal cancer was evidently higher in tumours of proximal location compared with the distal ones. The distance of corresponding normal distal mucosa from the tumour was analyzed and related to all assayed parameters. A decreased GST activity was observed in corresponding normal mucosa more than 5 cm distant from the tumour in patients with CD Duke's stage. The higher activity of superoxide dismutase and glutathione peroxidase in tumour compared to corresponding normal mucosa could indicate higher oxidative stress in colorectal adenocarcinoma cells.

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Knockdown of Long Non-Coding RNA XIST Inhibited Doxorubicin Resistance in Colorectal Cancer by Upregulation of miR-124 and Downregulation of SGK1

Cellular Physiology and Biochemistry ◽

10.1159/000495168 ◽

2018 ◽

Vol 51 (1) ◽

pp. 113-128 ◽

Cited By ~ 35

Author(s):

Jia Zhu ◽

Rui Zhang ◽

Dongxiang Yang ◽

Jibin Li ◽

Xiaofei Yan ◽

...

Keyword(s):

Colorectal Cancer ◽

Western Blot ◽

Molecular Mechanisms ◽

Luciferase Reporter ◽

Regulatory Function ◽

Glutathione S Transferase ◽

Protein Levels ◽

Qrt Pcr ◽

Ic50 Value

Background/Aims: Doxorubicin (DOX) is a widely used chemotherapeutic agent for colorectal cancer (CRC). However, the acquirement of DOX resistance limits its clinical application for cancer therapy. Mounting evidence has suggested that aberrantly expressed lncRNAs contribute to drug resistance of various tumors. Our study aimed to explore the role and molecular mechanisms of lncRNA X-inactive specific transcript (XIST) in chemoresistance of CRC to DOX. Methods: The expressions of XIST, miR-124, serum and glucocorticoid-inducible kinase 1 (SGK1) mRNA in DOX-resistant CRC tissues and cells were detected by qRT-PCR or western blot analysis. DOX sensitivity was assessed by detecting IC50 value of DOX, the protein levels of P-glycoprotein (P-gp) and glutathione S-transferase-π (GST-π) and apoptosis. The interactions between XIST, miR-124 and SGK1 were confirmed by luciferase reporter assay, qRT-PCR and western blot. Xenograft tumor assay was used to verify the role of XIST in DOX resistance in CRC in vivo. Results: XIST expression was upregulated and miR-124 expression was downregulated in DOX-resistant CRC tissues and cells. Knockdown of XIST inhibited DOX resistance of CRC cells, as evidenced by the reduced IC50 value of DOX, decreased P-gp and GST-π levels and enhanced apoptosis in XIST-silenced DOX-resistant CRC cells. Additionally, XIST positively regulated SGK1 expression by interacting with miR-124 in DOX-resistant CRC cells. miR-124 suppression strikingly reversed XIST-knockdown-mediated repression on DOX resistance in DOX-resistant CRC cells. Moreover, SGK1-depletion-elicited decrease of DOX resistance was greatly restored by XIST overexpression or miR-124 inhibition in DOX-resistant CRC cells. Furthermore, XIST knockdown enhanced the anti-tumor effect of DOX in CRC in vivo. Conclusion: XIST exerted regulatory function in resistance of DOX possibly through miR-124/SGK1 axis, shedding new light on developing promising therapeutic strategy to overcome chemoresistance in CRC patients.

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Modulating Properties of Piroxicam, Meloxicam and Oxicam Analogues against Macrophage-Associated Chemokines in Colorectal Cancer

Molecules ◽

10.3390/molecules26237375 ◽

2021 ◽

Vol 26 (23) ◽

pp. 7375

Author(s):

Paulina Lewandowska ◽

Izabela Szczuka ◽

Iwona Bednarz-Misa ◽

Berenika M. Szczęśniak-Sięga ◽

Katarzyna Neubauer ◽

...

Keyword(s):

Colorectal Cancer ◽

Colorectal Adenocarcinoma ◽

Normal Mucosa ◽

Colorectal Tumors ◽

Adjacent Tissue ◽

Inflammatory Drug ◽

Chemokine Expression ◽

Adenocarcinoma Cells ◽

Thiazine Ring ◽

N Stage

The mechanisms underlying the antineoplastic effects of oxicams have not been fully elucidated. We aimed to assess the effect of classic and novel oxicams on the expression/secretion of macrophage-associated chemokines (RTqPCR/Luminex xMAP) in colorectal adenocarcinoma cells, and on the expression of upstream the non-steroidal anti-inflammatory drug (NSAID)-activated genes NAG1, NFKBIA, MYD88, and RELA, as well as at the chemokine profiling in colorectal tumors. Meloxicam downregulated CCL4 9.9-fold, but otherwise the classic oxicams had a negligible/non-significant effect. Novel analogues with a thiazine ring substituted with arylpiperazine and benzoyl moieties significantly modulated chemokine expression to varying degree, upregulated NAG1 and NFKBIA, and downregulated MYD88. They inhibited CCL3 and CCL4, and their effect on CCL2 and CXCL2 depended on the dose and exposure. The propylene linker between thiazine and piperazine nitrogens and one arylpiperazine fluorine substituent characterized the most effective analogue. Only CCL19 and CXCL2 were not upregulated in tumors, nor was CXCL2 in tumor-adjacent tissue compared to normal mucosa. Compared to adjacent tissue, CCL4 and CXCL2 were upregulated, while CCL2, CCL8, and CCL19 were downregulated in tumors. Tumor CCL2 and CCL7 increased along with advancing T and CCL3, and CCL4 along with the N stage. The introduction of arylpiperazine and benzoyl moieties into the oxicam scaffold yields effective modulators of chemokine expression, which act by upregulating NAG1 and interfering with NF-κB signaling.

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The Clinicopathological Significance of miR-133a in Colorectal Cancer

Disease Markers ◽

10.1155/2014/919283 ◽

2014 ◽

Vol 2014 ◽

pp. 1-8 ◽

Cited By ~ 9

Author(s):

Timothy Ming-Hun Wan ◽

Colin Siu-Chi Lam ◽

Lui Ng ◽

Ariel Ka-Man Chow ◽

Sunny Kit-Man Wong ◽

...

Keyword(s):

Colorectal Cancer ◽

Negative Correlation ◽

Target Genes ◽

Distant Metastases ◽

Normal Mucosa ◽

Tnm Staging ◽

Tissue Samples ◽

Qrt Pcr ◽

Endogenous Expression ◽

Clinicopathological Significance

This study determined the expression of microRNA-133a (MiR-133a) in colorectal cancer (CRC) and adjacent normal mucosa samples and evaluated its clinicopathological role in CRC. The expression of miR-133a in 125 pairs of tissue samples was analyzed by quantitative real-time polymerase chain reaction (qRT-PCR) and correlated with patient’s clinicopathological data by statistical analysis. Endogenous expression levels of several potential target genes were determined by qRT-PCR and correlated using Pearson’s method. MiR-133a was downregulated in 83.2% of tumors compared to normal mucosal tissue. Higher miR-133a expression in tumor tissues was associated with development of distant metastasis, advanced Dukes and TNM staging, and poor survival. The unfavorable prognosis of higher miR-133a expression was accompanied by dysregulation of potential miR-133a target genes, LIM and SH3 domain protein 1 (LASP1), Caveolin-1 (CAV1), and Fascin-1 (FSCN1). LASP1 was found to possess a negative correlation (γ=-), whereas CAV1 exhibited a significant positive correlation (γ=), and a stronger correlation was found in patients who developed distant metastases (γ=). In addition, a negative correlation of FSCN1 was only found in nonmetastatic patients. In conclusion, miR-133a was downregulated in CRC tissues, but its higher expression correlated with adverse clinical characteristics and poor prognosis.

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Tumour Microbiome-Based Subtypes of Colorectal Cancer Correlate with Clinical Variables

10.21203/rs.3.rs-64049/v1 ◽

2020 ◽

Author(s):

Barbora Zwinsová ◽

Vyacheslav Petrov ◽

Martina Hrivňáková ◽

Stanislav Smatana ◽

Lenka Micenková ◽

...

Keyword(s):

Colorectal Cancer ◽

Gut Microbiome ◽

Primary Tumour ◽

Distant Metastases ◽

Normal Mucosa ◽

Tnm Staging ◽

Response To Treatment ◽

Clinical Variable ◽

Rrna Gene ◽

Clinical Variables

Abstract BackgroundLong-term dysbiosis of the gut microbiome has a significant impact on the development, progression and the aggressiveness of colorectal cancer (CRC) and may explain part of the observed heterogeneity of the disease from phenotypic, prognostic and response to treatment perspectives. Although the shifts in gut microbiome in the normal-adenoma-carcinoma sequence have been described, the landscape of microbiome within CRC and its associations with clinical variables remain under-explored. ResultsWe performed 16S rRNA gene sequencing of paired tumour tissue, adjacent visually-normal mucosa and stool swabs of N=186 patients with stage 0-IV CRC to describe the tumour microbiome and its association with clinical variable and to derive tumour microbial subtypes.We identified new genera never previously associated with CRC tumour mucosa (Flavonifractor, Haemophilus, Howardella, Pseudomonas, Sutterella, Treponema 2) or CRC (Actinobacillus, Aggregatibacter, Bergeyella, Phocaeiola, Defluviitaleaceae UCG-011, Massilia, Tyzzerella 4). The bacteria residing on tumour-mucosa were dominated by genera belonging to (potential) oral pathogens. Based on tumour microbial profiles, we stratified CRC patients into three subtypes. The subtypes were significantly associated with prognostic factors such as tumor grade, primary tumour sidedness and TNM staging, with one subtype enriched in tumours with poor prognosis. Further, we inspected the associations of microbiome with clinical variables in a subtype-agnostic setting. The primary tumour-associated clinical variables predominantly correlated with tumour mucosal microbiome, while the presence of local and distant metastases was mostly associated with the stool microbiome.ConclusionsUnderstanding the interactions of the bacteria residing on tumour mucosa within different CRC tumour microbiome subtypes will help to better understand the underlying biological background of the heterogeneity of this disease. Indeed, the tumour microbiome is a possible source of additional integrative markers of CRC patients’ survival and prognosis. We found that CRC microbiome is strongly correlated with clinical variables, but these associations are dependent on the microbial environment (tumour mucosa, normal mucosa, stool). Our study thus identifies limitations of the usage of microbiome composition as marker of CRC progression, suggesting the need of combining several sampling sites (e.g. stool and tumour swabs).

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Downregulation of RIZ1 protein expression in left-sided versus right-sided primary colorectal carcinomas and their distant metastases and the association with NF-B activation

Journal of Clinical Oncology ◽

10.1200/jco.2009.27.15_suppl.e15112 ◽

2009 ◽

Vol 27 (15_suppl) ◽

pp. e15112-e15112

Author(s):

E. Torlakovic ◽

E. C. Marginean ◽

G. Torlakovic ◽

R. Geyer ◽

H. Neufeld ◽

...

Keyword(s):

Protein Expression ◽

Colorectal Adenocarcinoma ◽

Nuclear Translocation ◽

Human Cancer ◽

Distant Metastases ◽

Normal Mucosa ◽

Metastatic Carcinoma ◽

Chi Square ◽

Primary Tumors ◽

Molecular Events

e15112 Background: Activation of NF- B leads to enhanced proliferation and the expression of anti-apoptotic proteins, which are cancer phenotypes. RIZ1 inactivation through various molecular events was linked to increased proliferation, migration induction and apoptosis inhibition in human cancer. RIZ1 frameshift mutations were recently reported to be confined to MSI-H colorectal tumors and proximal tumor origin, while its hypermethylation was not limited to MSI-H tumors. However, RIZ1 protein expression has not been evaluated in colorectal carcinoma. Methods: TMAs included 28 left-sided and 12 right-sided primary colorectal adenocarcinomas, their matched normal mucosa and their respective distant metastases. Left-sided tumors were compared to right-sided tumors for expression of RIZ1 protein and NF- B activation. RIZ1 immunostaining was scored semiquantitatively (0–3+). NF- B activation was determined by IHC detecting nuclear translocation of its p65 subunit in more than 30% tumor nuclei. Discrepant results were defined as score difference of 2. Results: RIZ1 was less expressed in tumors than in benign mucosa (p<0.0001, r=- 0.377, Chi-Square). The difference between primary vs. metastatic carcinoma was not significant. Low RIZ1 was associated with NF- B activation (p<0.0001, Linear-by-Linear). Left-sided primary tumors showed less RIZ1 protein expression than right-sided (p=0.03, Chi-Square). NF- B activation was more frequent in left-sided primary tumors and their respective metastases (35% in right vs. 67% in left; p=0.002, Chi-Square Test). RIZ1 expression and NF- B activation were almost identical in primary and their respective metastatic tumors with only 3 discrepant results for NF- B status and 2 discrepant results in RIZ1 expression. Conclusions: While RIZ1 downregulation in colorectal adenocarcinoma due to RIZ1 mutations appears to be associated with MSI-H and proximal origin, its protein expression appears to be downregulated more often in distal tumors. NF- B activation is strongly associated with lower RIZ1 protein expression in colorectal adenocarcinoma. No significant financial relationships to disclose.

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Genistein Inhibits Human Colorectal Cancer Growth and Suppresses MiR-95, Akt and SGK1

Cellular Physiology and Biochemistry ◽

10.1159/000374013 ◽

2015 ◽

Vol 35 (5) ◽

pp. 2069-2077 ◽

Cited By ~ 17

Author(s):

Jian Qin ◽

Jia Xin Chen ◽

Zhou Zhu ◽

Jia An Teng

Keyword(s):

Colorectal Cancer ◽

Cell Proliferation ◽

Molecular Mechanisms ◽

Xenograft Model ◽

Inhibitory Effect ◽

Protein Levels ◽

Phosphorylated Akt ◽

Hct 116 ◽

Hct 116 Cells

Background: Genistein, a major isoflavonoid isolated from dietary soybean, has been shown to suppress the growth of several cancers through modulation of various pathways. However, the molecular mechanisms by which genistein elicit its effects on colorectal cancer (CRC) cells have not been fully elucidated. In this study, we aimed to investigate the anti-tumor activities of genistein on CRC and its potential mechanism. Methods: Effects of genistein on the cell proliferation were tested in HCT-116 cells by MTT assay, and apoptosis was measured by Flow cytometry. Real-time PCR was also used to evaluate the regulation of genistein on miR-95, Akt and SGK1 expression. The protein levels of total Akt (T-Akt), and phosphorylated Akt (P-Akt) were assessed by western blot. A nude mice xenograft model was employed to determine whether genistein could have an anti-tumor effect on CRC in vivo. Results: We found that treatment of HCT-116 cells with genistein caused an inhibition of cell proliferation and induction of apoptosis. Meanwhile, genistein down-regulated the mRNA expression of Akt, SGK1 and miR-95, and inhibited the phosphorylation of Akt in HCT-116 cells. The experiment in vivo also showed that genistein significantly suppressed the growth of mouse xenograft tumor. Conclusion: This study demonstrates that genistein has an inhibitory effect on CRC involved in reducing miR-95, Akt and SGK1, offering novel insights into the mechanisms of genistein therapeutic actions.

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Estrogen and Progesterone Receptors in Colorectal Cancer and Surrounding Mucosa

The International Journal of Biological Markers ◽

10.1177/172460080101600407 ◽

2001 ◽

Vol 16 (4) ◽

pp. 262-267 ◽

Cited By ~ 8

Author(s):

P. Raigoso ◽

L. Sanz ◽

F. Vizoso ◽

B. Llana ◽

I. Quintela ◽

...

Keyword(s):

Colorectal Cancer ◽

Cancer Survival ◽

Progesterone Receptors ◽

Normal Mucosa ◽

Tumor Location ◽

Histological Differentiation ◽

Er Positive ◽

The Mean ◽

Low Levels

In this prospective study we have quantified by means of ELISA-methods the cytosolic content of estrogen (ER) and progesterone receptors (PgR) in tumoral tissue and paired normal mucosa from 163 patients with resectable colorectal cancer. Survival analysis was performed in a subgroup of 120 patients and the mean follow-up period was 24.9 months. The cutoff for ER and PgR levels was set at 1 fmol/mg protein. On the basis of this cutoff 20.9% of the cancers were ER positive and 25.8% were PgR positive; normal adjacent tissue presented ER in 18.4% and PgR in 24.5%. Our results did not show any significant correlation between ER and PgR levels in neoplastic tissues. Howewer, a correlation was found in normal mucosa samples (p=0.02). Statistical analysis showed that there was no correlation between tumor ER and PgR content and patient age or sex, tumor location, Dukes’ stage, histological differentiation, DNA ploidy status and S-phase fraction. Furthermore, the results did not show any statistical differences in relapse-free and overall survival curves calculated for patients classified according to the hormone receptor content of their tumors. ER and PgR were detected at low levels in normal and neoplastic colorectal tissues without any significant relationship to either clinicopathological tumor characteristics or patient outcome. Their possible role in colorectal cancer remains to be elucidated.

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ADAM-17/FHL2 colocalisation suggests interaction and role of these proteins in colorectal cancer

Tumor Biology ◽

10.1177/1010428317695024 ◽

2017 ◽

Vol 39 (3) ◽

pp. 101042831769502 ◽

Cited By ~ 2

Author(s):

Laurine Verset ◽

Joke Tommelein ◽

Christine Decaestecker ◽

Elly De Vlieghere ◽

Marc Bracke ◽

...

Keyword(s):

Colorectal Cancer ◽

Cell Lines ◽

Cancer Progression ◽

Colorectal Adenocarcinoma ◽

Normal Mucosa ◽

Scaffolding Protein ◽

Proximity Ligation Assay ◽

Low Grade ◽

Proximity Ligation ◽

Sw480 Cells

FHL2 is a multifunctional scaffolding protein; its expression is associated with poor prognosis in colorectal cancer. ADAM-17 is a metalloprotease implicated in ectodomain shedding. FHL2 regulates ADAM-17 plasma membrane localisation, and FHL2 deficiency leads to decreased activity of ADAM-17 in mouse macrophages. Presence and relationship of the ADAM-17/FHL2 complex with colorectal cancer progression is unknown. We studied FHL2 and ADAM-17 expression in several colon cancer cell lines by immunocytochemistry and western blot. To highlight the interaction between both molecules, we used the Duolink® kit for proximity ligation assay on SW480 cells. We also performed proximity ligation assay on biopsies and surgical specimens of colorectal adenocarcinoma and on matched normal mucosa. Furthermore, biopsies of colorectal adenoma with matched normal mucosa were selected. For quantification, pictures of the malignant, adenomatous and normal tissues were taken. Proximity ligation assay signals were quantified. Mean numbers of proximity ligation assay signals and of proximity ligation assay signals/nucleus were calculated. All cell lines showed FHL2 immunoreactivity; strongest positivity was observed in SW480 cells. ADAM-17 was expressed in all cell lines. Proximity ligation assay signals were present in SW480 cells. Quantitative analysis revealed that the interaction between FHL2 and ADAM-17 is more frequent in malignant than in normal tissue (p = 0.005). The mean number of ADAM-17/FHL2 proximity ligation assay signals was higher in colorectal adenocarcinoma than in adenoma with low-grade dysplasia (p = 0.0004). FHL2 interacts with ADAM-17 in normal, dysplastic and malignant colon epithelial cells. Colocalisation of these proteins is more frequent in malignant than in normal and dysplastic cells, suggesting a role for ADAM-17/FHL2 complex in the development of colorectal cancer.

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The Regional Specificity of Mucosa-Associated Microbiota in Patients with Distal Colorectal Cancer

Digestion ◽

10.1159/000519487 ◽

2021 ◽

pp. 1-9

Author(s):

Yoshihiko Kono ◽

Ryo Inoue ◽

Takumi Teratani ◽

Mineyuki Tojo ◽

Yuko Kumagai ◽

...

Keyword(s):

Colorectal Cancer ◽

Fusobacterium Nucleatum ◽

Amplicon Sequencing ◽

Normal Mucosa ◽

Rrna Gene ◽

Normal Tissues ◽

Streptococcus Anginosus ◽

Significant Difference ◽

Regional Specificity ◽

Tissue Specimens

Background/Aims: Recent studies have demonstrated that the populations of several microbes are significantly increased in fecal samples from patients with colorectal cancer (CRC), suggesting their involvement in the development of CRC. The aim of this study was to identify microbes which are increased in distal CRCs and to identify the specific location of microbes increased in mucosal tissue around the tumor. Methods: Tissue specimens were collected from surgical resections of 28 distal CRCs. Five samples were collected from each specimen (location A: tumor, B: adjacent normal mucosa, C: normal mucosa 1 cm proximal to the tumor, D: normal mucosa 3 cm proximally, and E: normal mucosa 6 cm proximally). The microbiota in the sample were analyzed using 16S rRNA gene amplicon sequencing and the relative abundance (RA) of microbiota compared among the 5 locations. Results: At the genus level, the RA of Fusobacterium and Streptococcus at location A was the highest among the 5 locations, significantly different from that in location E. The dominant species of each genus was Fusobacterium nucleatum and Streptococcus anginosus. The RAs of these species gradually decreased from locations B to E with a statistically significant difference in F. nucleatum. The genus Peptostreptococcus also showed a similar trend, and the RA of Peptostreptococcus stomatis in location A was significantly associated with depth of tumor invasion and tumor size. Conclusion: Although the clinical relevance is not clear yet, these results suggest that F. nucleatum, S. anginosus, and P. stomatis can spread to the adjacent normal tissues and may change the surrounding microenvironment to support the progression of CRC.

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