• 제목/요약/키워드: Normal tissue cells

검색결과 635건 처리시간 0.022초

Expression of Progranulin in Early and Late Gestation Human Placentas

  • Ka Hak-Hyun
    • Reproductive and Developmental Biology
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    • 제30권2호
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    • pp.107-113
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    • 2006
  • Development of placenta is a complex process that is critical for the pregnancy and controlled by many factors including cytokines, hormones, growth factors and apoptotic molecules. Recently, it has been shown that progranulin (PGRN) functions in growth of embryo and trophectoderm as well as cell migration. To initiate understanding the role of PGRN in human placental development, we investigated the expression of PGRN mRNA and protein in early and late gestation human placentas, term cytotrophoblast cells and two choriocarcinoma cell lines, JEG-3 and Jar. Reverse transcriptase polymerase chain reaction identified mRNAs derived from the PGRN gene in all samples. Immunoblot analysis showed that PGRN proteins are present in early and late gestation human placentas with decreasing levels over gestation and that PGRN proteins are present in normal and transformed trophoblast cells. Immunohistochemical analysis using paraformaldehyde-fixed tissue sections taken from early and late stages of pregnancy showed that PGRN proteins are present in cytotrophoblast cells, syncytiotrophoblast and extravillous cytotrophoblast cells and that expression pattern of PGRN differed according to the stage of cell differentiation. The results of this study are consistent with the hypothesis that PGRN proteins have critical roles in placental development and suggest that PGRN may function in trophoblast cell growth and differentiation.

여성 생삭기에 있어서의 ${\beta}$-Endorphin에 관한 면역조직학적 연구 (Immunoreactive ${\beta}$-Endorphin in Female Reproductive Organs)

  • 김정구;민응기;문신용;이진용;장윤석
    • Clinical and Experimental Reproductive Medicine
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    • 제15권1호
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    • pp.53-60
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    • 1988
  • The aim of this study was to examine the presence of ${\beta}$-endorphin in female reproductive organs. A total of 104 fresh tissue samples were obtained from normal ovary, tube, endometrium, placenta, amniotic membrane and umbilical cord, and immunostained by the method using biotin-streptoavidin amplified system. The results were as follows: 1. In reproductive age, corpus luteum only showed ${\beta}$-endorphin immunostained cells but no cells in ovaries during proliferative phase of menstrual cycle were stained. 2. Secretory endometrium revealed positive reactions in the cytoplasm of glandular epithelial cells and around the vessels, while proliferative endometrium negative reactions. 3. All the tissues of menopausal women were negative to ${\beta}$-endorphin antibody. 4. In the pregnant women, there are no ${\beta}$-endorphin containing cells in the placenta, amniotic membrane and umbilical cord regardless of gestational age.

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산삼약침이 Colon26-L5 암세포주를 이용한 간전이 모델의 항암 및 면역증진에 미치는 영향 (Anti-cancer and Immune Promoting Effects of Cultivated Wild Ginseng Herbal Acupuncture on Hepatic Metastatic Model Using Colon26-L5 Carcinoma Cells)

  • 임세영;이수진;권기록
    • Journal of Acupuncture Research
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    • 제23권1호
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    • pp.121-134
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    • 2006
  • Objectives : This experiment was conducted to evaluate inhibitory effects against hepatic metastasis and promotion of immunocytes by cultivated wild ginseng Herbal Acupuncture. Methods : Colon26-L5 carcinoma cells were injected through hepatic portal vein to induce hepatic metastatic cancer. Changes in weight, morphology of the cancer, histological impressions were evaluated and cytokine level was analyzed to yield immunological changes. Colon26-L5 carcinoma cells were injected through hepatic portal vein to induce hepatic metastatic cancer. Changes in weight, morphology of the cancer, histological impressions were evaluated and cytokine level was analyzed to yield immunological changes. Results : 1. Mice treated with cultivated wild ginseng Herbal Acupuncture reduced metastatic size compared to the control group. 2. No distinctive differences were witnessed between the cancer cells of control and experimental group in histological observation, but experimental group was closer to the normal tissue condition. 3. Observing immunocytes from the spleen of experimental group, T-lymphocytes were significantly increased. 4. Measuring the level of cytokine IL-4 which stimulates Th 2 were significantly increased. These findings strong1y indicate cultivated wild ginseng Herbal Acupuncture enhances immunity to inhibit the growth of cancer and metastasis.

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급성 아토피 피부염 마우스 모델에서 한약조합약물의 염증반응 진정효과 (Anti-inflammatory effects of herbal medicines(Rubus coreanus, Rehmanniae Radix, Houttuynia cordata, Betulae cortex) EtOH extract on acute atopic dermatitis mice)

  • 정재훈;김경준
    • 한방안이비인후피부과학회지
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    • 제28권1호
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    • pp.68-84
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    • 2015
  • Object : The object of this study was effected of composed of 4 herbal medicines(Rubus coreanus, Rehmanniae Radix, Houttuynia cordata, Betulae cortex) on acute atopic dermatitis mice. Methods : BALB/c mice were divided 4 groups ; normal group, negative control group of acute atopic dermatitis mice induced by DNCB, treated apply to the back skin with the herbal medicine group, and treated orally with herbal medicine group. Treated with herbal medicine and DNCB during 2 weeks. After treated, measured WBCs, RBCs, and platelet in the blood, and analysed mRNA expression of spleen. Result : Composed herbal medicines could reduce WBCs, lymphocytes, monocytes, neutrophils, and eosinophils in the mouse blood. And, could down TNF-${\alpha}$ levels in spleen. In the skin tissue histology results, herbal medicines reduce the cells and T cells. Conclusion : Composed herbal medicines help to another inflammatory disease because they reduce the cells and T cells in the skin tissues. And they have inhibitory effects of TNF-${\alpha}$ mRNA expression, and Th 2 immune responses. Therefore herbal medicines use for an acute atopic dermatitis treatment.

Evaluation of apoptosis after ionizing radiation in feeding and starving rats

  • Lee, Jae-Hyun;Cho, Kyung-Ja;Hong, Seok-Il;Park, Min-Kyung
    • 한국수의병리학회지
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    • 제2권1호
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    • pp.37-46
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    • 1998
  • It has been known that $\gamma$-irradiation usually induces cell death in regenerating stem cell in normal tissues like skin, intestine and hematopoietic organ. The experiment were carried out to evaluate the early response of radiation injury in radiosensitive and intermediate radiosensitive tissues in feeding and starving rats with the doses of 3.5 and 7.0 Gy. The results of the study showed that the histological phenomenon was apoptosis in the doses of the radiation as the early response of tissue injury. Apoptosis were showed organ-specific and cellular specific responses suggesting that the selection of apoptosis be exactly focused on highly renewal organs and cells. It was interesting that the rats starved for 72 hours prior to irradiation induced less apoptosis in liver than fed rats. As for cellular responses it appeared that apoptotic cells were mostly distributed in ductal or periportal cells in liver of feeding rats unlikely in liver of Starving rots which showed no difference in zonal distribution. In salivary gland apoptotic cells in fed rats were highly induced in intercalating and ductal cell population than in acinar cell population although unlikely in starved rats. This study showed the value of apoptosis using the detection system of TUNEL for evaluating cellular damage after radiation injury and the diminished effect of starvation on cell damage after ionizing irradiation.

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섬유성이형성증 유래세포의 특성연구 (CHARACTERISTICS OF FIBROUS DYSPLASIA DERIVED CELLS)

  • 이찬희;한인;서병무
    • Journal of the Korean Association of Oral and Maxillofacial Surgeons
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    • 제35권5호
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    • pp.304-309
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    • 2009
  • Purpose: Fibrous dysplasia (FD) is a fibro-osseous disease associated with activating missense mutations of the gene encoding the $\alpha$-subunit of stimulatory G protein. FD may affect a single bone (called monostotic form) or multiple bones (called polyostotic form). The extent of lesions reflects the onset time of mutation. In this study, cells from monostotic FD in maxilla of a patient were isolated and cultured in vitro for characterization. Materials and Methods: The single cells were released from FD lesion which was surgical specimen from 15 years-old boy. These isolated cells were cultured in vitro and tested their proliferation activity with MTT assay. In osteogenic media, these cells underwent differentiation process comparing with its normal counterpart i.e. bone marrow stromal cells. The proliferated FD cells were detached and transplanted into the dordsal pocket of nude mouse and harvested in 6 weeks and 12 weeks. Results and Summary: FD cells have an increased proliferation rate and poor differentiation. As a result, cells isolated from FD lesion decreased differentiation into osteoblast and increased proliferation capacity. MTT assay presented that proliferation rate of FD cells were higher than control. However, the mineral induction capacity of FD was lesser than that of control. Monostotic FD cells make fewer amounts of bone ossicles and most of them are woven bone rather than lamellar bone in vivo transplantation. In transplanted FD cells, hematopoietic marrow were not seen in the marrow space and filled with the organized fibrous tissue. Therefore, they were recapitulated to the original histological features of FD lesion. Collectively, these results indicated that the FD cells were shown that the increased proliferation and decreased differentiation potential. These in vitro and in vivo system can be useful to test FD cell's fate and possible.

온폐탕(溫肺湯)이 알레르기 비염 유발 흰쥐 모델에 미치는 영향 (The Effect of Onpye-tang on the Rat Model with Allergic Rhinitis)

  • 안찬근;조준기;홍석훈;황충연
    • 한방안이비인후피부과학회지
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    • 제20권3호
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    • pp.29-42
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    • 2007
  • Objectives : Allergic rhinitis is an inflammation or irritation of the mucous membranes that in the nose. Common symptoms include sneezing; a stuffy or runny nose; itch eyes, nose and throat; and watery eyes. We aimed to determine therapeutic effect of Onpye-tang by observing changes in blood cells and the nasal mucosal tissue. Methods : Twenty-four Sprague-Dawley rats were divided into three groups: normal, control, and sample group. Allergic rhinitis was induced in the control and sample group by intraperitoneal and intranasal sensitization with 0.l% Ovalbumin solution. Then Onpye-tang was orally administered only to the sample group for 28days, while the rats in the control group was given normal saline. We observed changes in the number of RBC and WBC; changes of neutrophils, lymphocyte, monocyte, and eosinophil proportions; total IgE level and AST & ALT change; also, changes in the nasal mucosal tissue. We used Student T-test statistically(p<0.05). Results : Onpye-tang showed significantly decreased IgE level on the serum of the rat model. Onpye-tang showed significantly decreased eosinophil level on the blood of the rat model. Onpye-tang inhibited the inflammatory reaction on the nasal mucosal tissue, according to nasal mucosal biopsy. Onpye-tang showed an inhibitory effect on the process of allergic rhinitis, according to IgE level, Eosinophil level, nasal mucosal biopsy. Onpye-tang had no hepatoxicity, according to AST and ALT on the serum. Conclusion : According to the above results, it is considered that Onpye-tang has an inhibitory effect on the process of allergic rhinitis and it can be used in relieving symptoms of allergic rhinitis.

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거담포폐탕(祛痰補肺湯)이 알레르기 비염 모델 흰쥐에 미치는 영향 (The Effects of Gudambope-tang on the Rat Model with Allergic Rhinitis)

  • 정세연;김윤범
    • 한방안이비인후피부과학회지
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    • 제18권3호
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    • pp.55-65
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    • 2005
  • Objectives: Allergic rhinitis is an inflammation or irritation of the mucous membranes that line the nose. Common symptoms include sneezing; a stuffy or runny nose; itchy eyes, nose and throat; and watery eyes. We aimed to determine therapeutic effects of Gudambope-tang by observing changes in blood cells and the nasal mucosal tissue. Methods: Fifteen Spraque-Dawley rats were divided into three groups: normal, control, and sample group. Allergic rhinitis was induced in the control and sample group by intraperitoneal and intranasal sensitization with 0.1% ovalbumin solution. Then Gudambope-tang was orally administered only to the sample group for 28days, while the rats in the control group was given normal saline. We observed changes in the number of RBC and WBC; changes of neutrophil, Iymphocyte and monocyte proportions; total IgE level and AST & ALT changes; also, changes in the nasal mucosal tissue. We used ANOVA test statistically(p<0.05). Results: 1. Gudambope-tang showed an inhibitory effect on the process of allergic rhinitis. 2. Gudambope-tang inhibited the inflammatory reaction on the nasal mucosal tissue. 3. Gudambope-tang had no hepatoxicity. Conclusions: According to the above results. it is considered that Gudambope-tang has an inhibitory effect on the process of allergic rhinitis and it can be used in relieving symptoms of allergic rhinitis.

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Expression of Toll-like Receptor 9 Increases with Progression of Cervical Neoplasia in Tunisian Women - A Comparative Analysis of Condyloma, Cervical Intraepithelial Neoplasia and Invasive Carcinoma

  • Fehri, Emna;Ennaifer, Emna;Ardhaoui, Monia;Ouerhani, Kaouther;Laassili, Thalja;Rhouma, Rahima Bel Haj;Guizani, Ikram;Boubaker, Samir
    • Asian Pacific Journal of Cancer Prevention
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    • 제15권15호
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    • pp.6145-6150
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    • 2014
  • Toll-like receptors (TLRs) are expressed in immune and tumor cells and recognize pathogen-associated molecular patterns. Cervical cancer (CC) is directly linked to a persistent infection with high risk human papillomaviruses (HR-HPVs) and could be associated with alteration of TLRs expression. TLR9 plays a key role in the recognition of DNA viruses and better understanding of this signaling pathway in CC could lead to the development of novel immunotherapeutic approaches. The present study was undertaken to determine the level of TLR9 expression in cervical neoplasias from Tunisian women with 53 formalin-fixed and paraffin-embedded specimens, including 22 samples of invasive cervical carcinoma (ICC), 18 of cervical intraepithelial neoplasia (CIN), 7 of condyloma and 6 normal cervical tissues as control cases. Quantification of TLR9 expression was based on scoring four degrees of extent and intensity of immunostaining in squamous epithelial cells. TLR9 expression gradually increased from CIN1 (80% weak intensity) to CIN2 (83.3% moderate), CIN3 (57.1% strong) and ICC (100% very strong). It was absent in normal cervical tissue and weak in 71.4% of condyloma. The mean scores of TLR9 expression were compared using the Kruskall-Wallis test and there was a statistical significance between normal tissue and condyloma as well as between condyloma, CINs and ICC. These results suggest that TLR9 may play a role in progression of cervical neoplasia in Tunisian patients and could represent a useful biomarker for malignant transformation of cervical squamous cells.

Is Immunohistochemical Sex Hormone Binding Globulin Expression Important in the Differential Diagnosis of Adenocarcinomas?

  • Bulut, Gulay;Kosem, Mustafa;Bulut, Mehmet Deniz;Erten, Remzi;Bayram, Irfan
    • Asian Pacific Journal of Cancer Prevention
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    • 제16권18호
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    • pp.8203-8210
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    • 2016
  • Adenocarcinomas (AC) are the most frequently encountered carcinomas. It may be quite challenging to detect the primary origin when those carcinomas metastasize and the first finding is a metastatic tumor. This study evaluated the role of sex hormone binding globulin (SHBG) positivity in tumor cells in the subclassification and detection of the original organ of adenocarcinomas. Between 1994 and 2008, 64 sections of normal tissue belonging to ten organs, and 116 cases diagnosed as adenoid cystic carcinoma and mucoepidermoid carcinoma of the salivary gland, lung adenocarcinoma, invasive ductal carcinoma of the breast, adenocarcinoma of stomach, colon, gallbladder, pancreas and prostate, endometrial adenocarcinoma and serous adenocarcinoma and mucinous adenocarcinoma of the ovary, were sent to the laboratory at the Department of Pathology at the Yuzuncu Yil University School of Medicine, where they were stained immunohistochemically, using antibodies against SHBG. The SHBG immunoreactivity in both the tumor cells and normal cells, together with the type, diffuseness and intensity of the staining were then evaluated. In the differential diagnosis of the adenocarcinomas of the organs, including the glandular structures, impressively valuable results are encountered in the tumor cells, whether the SHBG immunopositivity is evaluated alone or together with other IHC markers. Further extensive research with a larger number of cases, including instances of cholangiocarcinoma and cervix uteri AC [which we could not include in the study for technical reasons] should be performed, in order to appropriately evaluate the role of SHBG in the differential diagnosis of AC.