Journal of Pathology and Translational Medicine

Original Articles

Mesenchymal Stromal Cells Promote Tumor Progression in Fibrosarcoma and Gastric Cancer Cells: Byunghoo Song, Bokyung Kim, Se-Ha Choi, Kyo Young Song, Yang-Guk Chung, Youn-Soo Lee, Gyeongsin Park; Korean J Pathol. 2014;48(3):217-224. Published online June 26, 2014; DOI: https://doi.org/10.4132/KoreanJPathol.2014.48.3.217

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Background

Extensive evidence has accumulated regarding the role of mesenchymal stromal cells (MSCs) in tumor progression, but the exact effects and mechanisms underlying this role remain unclear. We investigated the effects of MSC-associated tumor progression in MSC-sarcoma models and a gastric cancer metastatic model.

Methods

We conducted an in vitro growth kinetics assay and an in vivo tumor progression assay for sarcoma cells and gastric cancer cells in the presence or absence of MSCs.

Results

MSC-cocultured human fibrosarcoma cells (HT1080) showed accelerated growth compared with HT1080 alone (79- vs 37-fold change, p<.050). For HT1080, human MSC-coinjected tumors showed significantly greater and highly infiltrative growth compared to those of HT1080 alone (p=.035). For mouse fibrosarcoma cells (WEHI164), mouse MSC-coinjected tumors had greater volume than those of WEHI164 alone (p=.141). For rat sarcoma cells (RR1022), rat MSC-coinjected tumors exhibited greater volume and infiltrative growth than those of RR1022 alone (p=.050). For human gastric cancer cells (5FU), tumors of 5FU alone were compact, nodular in shape, and expansile with good demarcation and no definite lung metastatic nodules, whereas tumors grown in the presence of human MSCs showed highly desmoplastic and infiltrative growth and multiple lung metastasis.

Conclusions

We observed morphological evidence for MSC-associated tumor progression of fibrosarcomas and gastric cancer cells.

Citations

Citations to this article as recorded by

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Morphological and Biochemical Study on the Processes of Apoptosis Induced by Radiation.: Kye Yong Song, Seong Man Kang, Seong Hwan Ha, Sang Chul Park; Korean J Pathol. 1996;30(9):819-829.

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Abstract PDF: Transglutaminase(TGase) is a calcium dependent enzyme that catalyse and acyl transfer reaction forming epsilon-(gamma-glutamyl)-lysine cross linkage. the major known effect of TGase is its important role in the programmed cell death manifested in the granular layer of the skin and acidophilic bodies in the viral hepatitis and neoplastic processes. The enzyme activity, immunohistochemical reaction using polyclonal antibodies against cytosolic TGase C, light and electron microscopic studies and TdT staining of the transplanted fibrosarcoma cells in C3H mouse with radiation therapy were done. The presence of TGase was detected immunohistochemically by avidin-biotin peroxidase complex (ABC) method Apoptosis were significantly induced after irradiation dependent with time factors and irradiation doses, resulted in marked and confluent tumor cell loss. Highest activity of the cytosolic form of TGase was noted at 24 hours and decrease after then while membrane bounded form of the TGase showed no significant changes. Immunohistochemical staining revealed strong positive reaction in the sarcoma cells in diffuse fasion and around the necrotic foci in the cytoplasm. Terminal dideoxynucleotidyl transferase(TdT) staining revealed increasing numbers of apotptic cells from two hours after irradiation. In the mechanism of decreasing tumor size and cell death in radiation therapy, apoptosis plays an important role and during that process transglutaminse might do some irreversible cross-linking effects of cytoplasmic proteins causing cell death in part.

Case Reports

Progression of Dermatofibrosarcoma Proruberans to Malignant Fibrous Histiocytoma: Report of a case.: Hye Rim Park, Eun Ha Jung, Jin Hee Sohn; Korean J Pathol. 1997;31(12):1324-1327.

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Abstract PDF: A 52-year-old woman was admitted with a palpable mass on the abdominal wall. This tumor had developed at the same site of a previously resected dermatofibrosarcoma protuberans. The biopsy specimen from the recurrent tumor revealed malignant fibrous histiocytoma. Immunohistochemistry with anti-CD34 antibody revealed diffuse linear positivity on the tumor cells of dermatofibrosarcoma protuberans and negativity on malignant fibrous histiocytoma. Anti CD34 antibody was valuable for a differential diagnosis of these two lesions.

Spermatic Cord Sarcoma: Two cases report.: Han Seong Kim, Je Geun Chi; Korean J Pathol. 1998;32(7):546-548.

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Abstract: Present study describes two rare spermatic cord sarcomas. The first case is leiomyosarcoma of a 56-year-old man with 3-years' history of slowly growing hard mass in the right inguinal area, measuring 8x6x5 cm. The second case is fibrosarcoma of a 39-year-old man with 3x2 cm painless right inguinal mass. Both cases underwent radical excision of mass and orchiectomy. Clinico-pathologic characteristics of spermatic cord sarcoma are discussed with literature review.

Myofibrosarcoma of the Breast: A case report .: Chan Kwon Jung, Kyo Young Lee, Chang Suk Kang, Sang In Shim, Byung Kee Kim; Korean J Pathol. 2000;34(1):96-98.

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Abstract PDF: Myofibrosarcoma of the breast is a rare malignant mesenchymal tumor that has been reported in only four well documented cases so far. We report a case of myofibrosarcoma of the breast in an 88-year-old man who complained of a palpable mass for 1 year. Microscopically, the tumor consisted mainly of spindled cells, arranged in irregular fascicles and embedded in broad bands of dense hyalinized collagen. It showed ill-defined border infiltrating the adjacent adipose tissue, moderate cellular pleomorphism, and high mitotic rate (8~9/10 HPF). Immunohistochemical study confirmed myofibroblastic differentiation of the tumor cells with diffuse strong reaction for vimentin, smooth muscle actin, and fibronectin.

Pediatric Pigmented Dermatofibrosarcoma Protuberans (Bednar Tumor): A Case Report.: Dae Woon Eom, Gil Hyun Kang, Key Won Lee, Soo Jung Choi; Korean J Pathol. 2007;41(3):183-186.

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Abstract PDF: A Bednar tumor is a rare neoplasm of intermediate malignant potential that accounts for 1-5% of all cases of dermatofibrosarcoma protuberans (DFSP). This tumor is considered a pigmented variant of DFSP, because the clinical and histological findings resemble DFSP. The diagnosis is commonly made in early to middle adult life except in cases with melanin containing cells. In the case presented here, the patient was a 3-year-old male who presented with a painless slow-growing 2.0x1.5x1.0 cm mass on the dorsal aspect of his right hand. Histological examination of the biopsy specimen revealed typical features of a Bednar tumor, which was composed of CD34 positive monomorphous spindle shaped cells arranged in a storiform fashion with moderate mitotic activity (up to 5 per 10 HPF) and scattered pigmented cells with dendritic processes. We report a rare case of Bednar tumor affecting a pediatric patient and review the medical literatures.

Dermatofibrosarcoma Protuberans of the Parotid Gland: A Case Report.: Ok Jun Lee, David Y Pi, Daniel H Jo, Kyung Ja Cho, Sang Yoon Kim, Jae Y Ro; Korean J Pathol. 2004;38(4):276-279.

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Abstract PDF: Dermatofibrosarcoma protuberans (DFSP) typically presents during the early or mid-adult life, and the most common site of origin is the skin on the trunk and proximal extremities. DFSP of the parotid gland is extremely rare and only one case has been reported in the literature. We present here a case of a 30-year-old woman with DFSP occurring in the parotid gland, and we discuss the differential diagnosis. The patient is alive and doing well one year after her operation.

Inflammatory Myofibroblastic Tumor (InflammatoryFibrosarcoma) of the Lung: A Case Report.: Minseob Eom, Tae Heon Kim, Jin Kyu Park, Kwang Hwa Park, Soon Hee Jung, Kwang Gil Lee; Korean J Pathol. 2003;37(4):291-295.

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Abstract PDF: Inflammatory myofibroblastic tumor, also known as inflammatory fibrosarcoma, has been frequently diagnosed as inflammatory pseudotumor. Although there are six cases reported as inflammatory pseudotumors or inflammatory myofibroblastic tumors in the lung, no cases of pulmonary inflammatory myofibroblastic tumor with features of inflammatory fibrosarcoma have been reported in Korea. We experienced a case of inflammatory myofibroblastic tumor (inflammatory fibrosarcoma)characterized by high cellularity, severe nuclear pleomorphism, necrosis, or increased mitoticcounts. A 31-year-old male patient with a solitary pulmonary nodule on the routine chest x-rayreceived a right lower lobectomy. The tumor was an ovoid solid mass with multifocal necrosis, showing diffuse irregular proliferation of spindle cells with high cellularity and focal nuclear pleomorphism, admixed with dense lymphoplasmacytic cells. Although spindle cells are focally immunoreactivefor smooth muscle actin, the ultrastructural examination failed to demonstrate smooth muscledifferentiation. In cases of inflammatory myofibroblastic tumor (inflammatory fibrosarcoma), a completeexcision and close follow-up without radical surgery, radiation, or chemotherapy are needed.

Infantile Fibrosarcoma: A case report.: Chan Pil Park, Geun Shin Lyu, Chan Kum Park, Jung Dal Lee; Korean J Pathol. 1994;28(3):313-315.

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Abstract: Fibrosarcoma in newborns and infants, designated as congenital, infantile, or juvenile fibrosarcoma is an uncommon soft tissue neoplasm occurring most frequently during the first year of life. Infantile fibrosarcoma is associated with favorable clinical behavior that is markedly different from that of adult fibrosarcoma., We report a case of infantile fibrosarcoma occured in a 3-year-old boy presenting as a palpable mass in the left lower extremity since 3 months of life. Histologic findings of the tumor are similar to those of f ibrosarcomas in adult.

Bednar Tumor: A case report with discusion of histogenesis.: Mee Soo Chang, Kye Yong Song; Korean J Pathol. 1993;27(6):659-662.

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Abstract PDF: The authors examined a case of Bednar tumor(pigmented dermatofibrosarcoma protuberans). A 35-year-old woman presented with protruding black back mass 3x2.5 cm in surface dimension and 1 cm in heigh, which has grown slowly for 30 years. Microscopically the lesion is characterized by spindle cells arranged in storiform pattern and admixed with melanin containing dendritic cells. Ultrastructural study revealed three cell populations: (1) cells resembling fibroblasts, (2) cells resembling perineural cells, and (3) melanocytes. The immunohistochemical study using S-100 protein alpha-1 antitrypsin, antichymotrypsin and EMA revealed negative reaction in spindle fibroblastic tumor cells. The histogenesis of this neoplasm remains controversial; neuroectoderm, perineural cell, fibroblast and histiocyte. Through the ultrastructural study and immunohistochemical study, the authors suggested that Bedner tumor arises form the neuroectoderm with bidirectional to perineural and fibroblastic differentiation.

Amelobastic Fibrosarcoma of the Mandible: A case report.: O Joon Kwon, Hyun Ho Shin, Hee Kyung Park, Jong Min Chae, Chin Soo Kim; Korean J Pathol. 1992;26(4):381-388.

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Abstract PDF: Ameloblastic fibrosarcoma is an extremely rare variety of odontogenic tumor. It has not previously been reported in Korea. The tumor is composed of benign odontogenic epithelium with a mesenchymal part which exhibits the histologic features of fibrosarcoma. We have reported a case of amloblastic fibrosarcoma of the mandible in a 26-year-old man with swelling of right mandible for 2 weeks. The tumor showed yellowish ill-demarcated ulcerating mass involving right premolar and molar area. Light microscopy revealed irregularly arranged strands and islands of odontogenic epithelium surrounded by abundant mesenchymal tissue with the feature of fibrosarcoma. The fibrosarcoma cells were strong positive on immunostain for vimentin and ameloblastic cells were weakly positive for cytokeratin. S-100 and CEA were negative in both epithelial and sarcoma cells. The sarcoma cells were corresponding to fibroblasts on the electron microscopy with abundancy of RER and mitochondria and covering of basal lamina. Two types of virus like particles were distributed in the cytoplasm and nuclei of sarcoma cells. We treated the patient with surgery and chemotherapy. The recovery was uneventful and the prognosis is under observation.

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