Cancer Research and Treatment

Original Articles

Lymphoma

Forkhead Box C1 (FOXC1) Expression in Stromal Cells within the Microenvironment of T and NK Cell Lymphomas: Association with Tumor Dormancy and Activation: Ji Hae Nahm, Woo Ick Yang, Sun Och Yoon; Cancer Res Treat. 2020;52(4):1273-1282. Published online July 3, 2020; DOI: https://doi.org/10.4143/crt.2020.032

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Purpose
Forkhead box C1 (FOXC1) is critical for maintaining bone marrow microenvironments during hematopoiesis, but its role in hematological malignancies remains obscure. Here, we investigated whether FOXC1 regulates tumor dormancy and activation in the microenvironments of T and natural killer (NK) cell lymphomas.
Materials and Methods
One hundred and twenty cases of T and NK cell lymphomas were included; the immunohistochemical expression of FOXC1 was investigated in stromal cells, and numbers of FOXC1⁺ stromal cells were counted. Furthermore, the expression of phosphorylated p38 (p-p38) and phosphorylated ERK1/2 (p-ERK1/2) in tumor cells was investigated using immunohistochemistry.
Results
FOXC1 was variably expressed in C-X-C motif chemokine 12–associated reticular stromal cells, histiocytes, (myo)fibroblasts, and endothelial cells. The phenotypes of cases were categorized as dormant (high p-p38/low p-ERK1/2; n=30, 25.0%), active (high p-ERK1/2/low p-p38; n=25, 20.8%), or intermediate (others; n=65, 54.2%). Lower FOXC1⁺ stromal cell infiltration was associated with the dormant phenotype, the precursor T lymphoblastic leukemia/lymphoma subtype, and inferior overall survival rates, whereas higher FOXC1⁺ stromal cell infiltration was associated with the active phenotype and favorable patient prognosis (p < 0.05 for all).
Conclusion
These results suggested that FOXC1⁺ stromal cells within the microenvironments of T and NK cell lymphomas might be related to tumor phenotypes.

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Mechanisms of lymphoma-stromal interactions focusing on tumor-associated macrophages, fibroblastic reticular cells, and follicular dendritic cells
Rintaro Ohe
Journal of Clinical and Experimental Hematopathology.2024; 64(3): 166. CrossRef

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Adipose Stromal Cells from Visceral and Subcutaneous Fat Facilitate Migration of Ovarian Cancer Cells via IL-6/JAK2/STAT3 Pathway: Boyun Kim, Hee Seung Kim, Soochi Kim, Guy Haegeman, Benjamin K. Tsang, Danny N. Dhanasekaran, Yong Sang Song; Cancer Res Treat. 2017;49(2):338-349. Published online July 18, 2016; DOI: https://doi.org/10.4143/crt.2016.175

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Purpose
Adipose stromal cells (ASCs) play an important regulatory role in cancer progression and metastasis by regulating systemic inflammation and tissue metabolism. This study examined whether visceral and subcutaneous ASCs (V- and S-ASCs) facilitate the growth and migration of ovarian cancer cells.
Materials and Methods
CD45– and CD31– double-negative ASCs were isolated from the subcutaneous and visceral fat using magnetic-activated cell sorting. Ovarian cancer cells were cultured in conditioned media (CM) obtained from ASCs to determine the cancer-promoting effects of ASCs. A 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide (MTT) assay, Boyden chamber assay, and western blotting were performed to determine the proliferative activity, migration ability, and activation of the JAK2/STAT3 pathway, respectively.
Results
CM from ASCs enhanced the migration of the ovarian cancer line, SKOV3, via activation of the JAK2/STAT3 signaling pathway. Interestingly, in response to ASC-CM, the ascites cells derived from an ovarian cancer patient showed an increase in growth and migration. The migration of ovarian cancer cells was suppressed by blocking the activation of JAK2 and STAT3 using a neutralizing antibody against interleukin 6, small molecular inhibitors (e.g., WP1066 and TG101348), and silencing of STAT3 using siRNA. Anatomical differences between S- and V-ASCs did not affect the growth and migration of the ovarian cancer cell line and ascites cells from the ovarian cancer patients.
Conclusion
ASCs may regulate the progression of ovarian cancer, and possibly provide a potential target for anticancer therapy.

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The Expression of Carbonic Anhydrase (CA) IX/XII and Lymph Node Metastasis in Early Breast Cancer: Keun-Yong Eom, Min Hye Jang, So Yeon Park, Eun Young Kang, Sung Won Kim, Jee Hyun Kim, Jae-Sung Kim, In Ah Kim; Cancer Res Treat. 2016;48(1):125-132. Published online March 3, 2015; DOI: https://doi.org/10.4143/crt.2014.243

Abstract PDF PubReader ePub

Purpose
The aim of study was to test by immunohistochemical (IHC) staining whether carbonic anhydrase (CA) 9 and 12 have an effect on sentinel lymph node (SLN) metastasis in early breast cancer and to find clinicopathologic factors associated with SLN metastasis.
Materials and Methods
Between June 2003 and June 2011, medical records of 470 patients diagnosedwith breast cancer with pT1-2, pN0-2, and M0 were reviewed. Of these 470, 314 patients who underwent SLN biopsy±axillary dissection were subjects of this study. Using tissue microarray, IHC staining for CA9 and CA12 was performed. Clinicopathologic factors such as patient age, tumour size, lymphatic invasion, hormone receptor status, and the Ki-67 labeling index were analysed together.
Results
The mean age of all patients was 51.7 years. The mean number of harvested SLN was 3.62, and 212 patients (67.5%) had negative SLN. Lymphatic invasion, the Ki-67 labelling index of primary tumours, and CA9 staining of stromal cells, were independent risk factors for SLN metastasis in the multivariate analysis. In 33 patients (10.5%) without the three risk factors, no patient had SLN metastasis. In 80 patients without lymphatic invasion of primary tumours or CA9 staining of stromal cells, only four patients (5%) had positive SLN.
Conclusion
CA9 staining of stromal cells is an independent risk factor for SLN metastasis as well as lymphatic invasion and a low Ki-67 labelling index of primary tumours in patients with early breast cancer. IHC staining of primary tumours for CA12was not associatedwith SLN metastasis.

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The Diagnostic Role of TFF1, TFF3, FOXA1, CA XII and TRPS1 in Serous Effusions
Ben Davidson, Arild Holth, Jeremias Wohlschlaeger, Maurizio Pinamonti, Binnur Önal
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PLOS ONE.2024; 19(10): e0312846. CrossRef
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Simonas Daunys, Vilma Petrikaitė
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Prognostic Significance of Defining L-Cell Type on the Biologic Behavior of Rectal Neuroendocrine Tumors in Relation with Pathological Parameters: The Gastrointestinal Pathology Study Group of Korean Society of Pathologists, Jin Hee Sohn, Mee-Yon Cho, Yangsoon Park, Hyunki Kim, Woo Ho Kim, Joon Mee Kim, Eun Sun Jung, Kyoung-Mee Kim, Jae Hyuk Lee, Hee Kyung Chan, Do Youn Park, Mee Joo, Sujin Kim, Woo Sung Moon, Mi Seon Kang, So-Young Jin, Yun Kyung Kang, Sun Och Yoon, HyeSeung Han, EunHee Choi; Cancer Res Treat. 2015;47(4):813-822. Published online February 26, 2015; DOI: https://doi.org/10.4143/crt.2014.238

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Purpose
In 2010, the World Health Organization categorized L-cell type neuroendocrine tumors (NETs) as tumors of uncertain malignancy, while all others were classified as malignant. However, the diagnostic necessity of L-cell immunophenotyping is unclear, as are tumor stage and grade that may guide diagnosis and management. To clarify the predictive markers of rectal neuroendocrine neoplasms (NENs), 5- and 10-year overall survival (OS) was analyzed by pathological parameters including L-cell phenotype. Materials and Methods A total of 2,385 rectal NENs were analyzed from our previous multicenter study and a subset of 170 rectal NENs was immunophenotyped.
Results
In univariate survival analysis, tumor grade (p < 0.0001), extent (p < 0.0001), size (p < 0.0001), lymph node metastasis (p=0.0063), and L-cell phenotype (p < 0.0001) showed significant correlation with the prognosis of rectal NENs; however, none of these markers achieved independent significance in multivariate analysis. The 10-year OS of tumors of NET grade 1, < 10 mm, the mucosa/submucosa was 97.58%, 99.47%, and 99.03%, respectively. L-Cell marker, glucagon II (GLP-1&2), with a cut off score of > 10, is useful in defining L-Cell type. In this study, an L-cell immunophenotype was found in 83.5% of all rectal NENs and most, but not all L-cell type tumors were NET G1, small (< 10 mm) and confined to the mucosa/submucosa. Conclusion From these results, the biological behavior of rectal NENs does not appear to be determined by L-cell type alone but instead by a combination of pathological parameters.

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Resveratrol at High Doses Acts as an Apoptotic Inducer in Endothelial Cells: Kyungmin In, Jongbong Park, Heonyong Park; Cancer Res Treat. 2006;38(1):48-53. Published online February 28, 2006; DOI: https://doi.org/10.4143/crt.2006.38.1.48

Abstract PDF PubReader ePub

Purposes

Resveratrol is a phenolic compound found in grapes and other food products. In order to assess the availability of resveratrol as an angio-inhibiting drug, we examined whether resveratrol plays an important role in bovine aortic endothelial cells (BAECs) for cell apoptosis and cell migration.

Methods and Materials

Endothelial cell apoptosis was observed as detected by the Hoechst staining and the caspase-3 activity. Additionally, Western blotting was performed for monitoring the activities of various cell signaling molecules.

Results

Resveratrol was shown to act as a pro-apoptotic agent. The pro-apoptotic effect of resveratrol was as great as that of etoposide, a well-known anti-cancer drug. In addition, resveratrol had an inhibitory effect on endothelial cell migration. The demonstrated efficacy of resveratrol suggests that resveratrol may be utilized as an anti-angiogenic drug. To determine the underlying mechanisms, we further investigated which signaling molecules are activated by resveratrol. Extracellular signal-regulated kinase (ERK) was activated by the treatment with resveratrol in BAECs, whereas endothelial nitric oxide synthetase (eNOS), Akt, and Jun N-terminal kinase (JNK) were inhibited. The pretreatment with PD compound, an ERK inhibitor, had no effect on the pro-apoptosis induced by resveratrol.

Conclusion

Resveratrol plays an important role in endothelial cell apoptosis, indicating that resveratrol can be utilized as a potent anti-angiogenic drug.

Citations

Citations to this article as recorded by

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