• Title/Summary/Keyword: mammary tumor

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Pre-initiation treatment of indole-3-carbinol(I3C) inhibits 7,12-Dimethylbenz[α] anthracene(DMBA)-induced rat mammary carcinogenesis (Indole-3-carbinol(I3C) 투여에 의한 7,12-Dimethylbenz[α] anthracene(DMBA) 유발 랫드 유선발암 억제)

  • Kang, Jin Seok;Ahn, Byeongwoo;Nam, Ki Taek;Choi, Mina;Kim, Ji Young;Kim, Dae Joong;Jang, Dong Deuk;Yang, Ki-Hwa
    • Korean Journal of Veterinary Research
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    • v.41 no.4
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    • pp.549-555
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    • 2001
  • Indole-3-carbinol (I3C), one component of cruciferous vegetables (the Fammily of Cruciferae), has been shown to exert its chemopreventive effect in liver, colon and mammary tissue before or concurrent exposure of carcinogen, but there have been several evidences that consumption of I3C induced tumor promotion in some tissues. Our studies were investigated to examine the modifying effects of I3C in the 7,12-dimethylbenz[$\alpha$]anthracene (DMBA) induced rat mammary gland tumor model. Fifty-two female Sprague-Dawley rats were randomly divided into five groups. Animals of the group 1 were given the diet containing 100ppm I3C and animals of the groups 2 and 4 were given the diet containing 300ppm I3C from 6 weeks of age. At 7 weeks of age, the animals of the groups 1, 2 and 3 were intubated with DMBA. All amimals were killed at 20 weeks after carcinogen treatment. There were significant increases of food consumption in I3C feeding groups compared with those of basal diet feeding groups. The incidences of the mammary tumors in the group 1, 2 and 3 were 75.0% (9/12), 56.3% (9/16) and 93.8% (15/16), respectively and the average number of tumors of group 1 (DMBA+I3C 100ppm: $2.08{\pm}0.61$) and 2 (DMBA+I3C 300ppm: $1.19{\pm}0.32$) were significantly lower than that of group 3 (DMBA alone: $4.63{\pm}0.72$) at the value of P<0.05 and P<0.001, respectively. In the pathological examination of appearing tumors, most of them were adenocarcinoma. Many epithelial cells of tumors showed strong estrogen receptor (ER) $\alpha$ expression but there were slight difference of ER $\alpha$ expression among the type of tumors. We suggest that pre-initiation treatment of I3C has an inhibitory effects on mammary carcinogenesis induced by DMBA.

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Treatment of Malignant Melanoma by Downregulation of XIAP and Overexpression of TRAIL with a Conditionally Replicating Oncolytic Adenovirus

  • Li, Xin-Qiu;Ke, Xian-Zhu;Wang, Yu-Ming
    • Asian Pacific Journal of Cancer Prevention
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    • v.13 no.4
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    • pp.1471-1476
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    • 2012
  • Background and Aim: Currently available systemic therapies for malignant melanoma produce low response rates in patients, and more effective treatment modalities are clearly needed. The tumor necrosis factor (TNF)-related apoptosis-inducing ligand has a significant impact on therapy for patients with X-linked inhibitor of apoptosis protein-downregulation malignant melanoma. The primary objective of this study was to assess its therapeutic potential. Materials and Methods: We employed a conditionally replicating oncolytic adenoviral vector, named CRAd5.TRAIL/siXIAP, with the characteristics of over-expression of the therapeutic gene TRAIL and downregulation of XIAP in one vector. B16F10-luc cells were employed to detect anti-tumor activity of CRAd5.TRAIL/siXIAP in vitro and in vivo. Results: CRAd5.TRAIL/siXIAP enhanced caspase-8 activation and caspase-3 maturation in B16F10 cells in vitro. Furthermore, it more effectively infected and killed melanoma cells in vitro and in vivo than other adenoviruses. Conclusion: Taken together, the combination of upregulation of TRAIL and downregulation of siXIAP with one oncolytic adenoviral vector holds promise for development of an effective therapy for melanomas and other common cancers.

The Modifying Effect of Indole-3-Carbinol (I3C) in rat mammary carcinogenesis

  • Kang, Jin-Seok;Nam, Ki-Taek;Byeongwoo Ahn;Park, Mi-Na;Kim, Ki-Sok;Jang, Dong-Deuk;Kim, Dae-Joong
    • Proceedings of the Korean Society of Veterinary Pathology Conference
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    • 2000.09a
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    • pp.26-26
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    • 2000
  • The consumption of cruciferous vegetables such as cabbage and broccoli have been shown to have a chemopreventive effect in human and in experimental animals. Indole-3-carbinol (I3C), one component of cruciferous vegetables, has been shown to exert its chemopreventive effect in liver, colon and mammary tissue before or concurrent exposure of carcinogen, but in some reports, there have been several evidence that consumption of I3C after carcinogen treatment induced tumor promotion in some tissues. There have been no reports about the effect of I3C after carcinogen exposure in N-Nitroso-N-methylurea (MNU)-induced mammary tumor model of rats. (omitted)

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PRE-INITIATION TREATMENT OF INDOLE-3-CARBINOL (I3C) INHIBITS 7,12-DIMETHYLBENZ[a]ANTHRACENE(DMBA)-INDUCED RAT MAMMARY CARCINOGENESIS

  • kang, Jin-Seok;Ahn, Byeong-Woo;Lee, Kook-Kyung;Nam, Ki-Taek;Che, Jeong-Hwan;Choi, Mina;Kim, Ji-Young;Kim, Dae-Joong;Jang, Dong-Deuk;Yang, Ki-Hwa
    • Proceedings of the Korean Society of Toxicology Conference
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    • 2001.10a
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    • pp.85-86
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    • 2001
  • Indole-3-carbinol (I3C), one component of cruciferous vegetables (the Family of Cruciferae), has been shown to exert chemopreventive effects in liver, colon and mammary tissue, but there has been substantial evidence that consumption of I3C induces tumor promotion in some tissues. Our studies were investigated to examine the modifying effects of I3C in the 7, 12-dimethylbenz[a]anthracene (DMBA) induced rat mammary tumor model.(omitted)

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Longissimus lumborum muscle metastasis from mammary gland adenocarcinoma in a dog

  • Lee, Jae-Yeon;Shin, Beom-Jun;Park, Ji-Young;Lee, Young-Won;Park, Seong-Jun;Kim, Myung-Cheol;Jeong, Seong-Mok
    • Korean Journal of Veterinary Research
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    • v.52 no.4
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    • pp.281-283
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    • 2012
  • An 8-year-old female, German Shepherd dog was presented with history of dyspnea and seizure. One Year Previously a lumpectomy had been performed for surgical resection of mammary mass. In serum chemistry, severe hypoglycemia and elevation of aspartate aminitransferase and creatine kinase were shown. In thoracic radiography, there were variable sized nodules in the overall lung field. On computed tomography examination, the mass was shown in left longissimus lumborum muscle. Histopathological examination revealed adenocarcinoma derived from the mammary gland. Muscular metastasis of mammary gland tumor is uncommon. This is a rare observation and could easily be overlooked or misinterpreted.

Metastatic lipid-rich mammary carcinoma in a dog

  • Kim, Myung-Chul;Kim, So-Yeon;Lee, Su-Hyung;Kim, Dae-Yong;Yoon, Jung-Hee;Kim, Wan Hee;Lee, Jeong-Ha;Kim, Yongbaek
    • Korean Journal of Veterinary Research
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    • v.54 no.4
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    • pp.265-268
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    • 2014
  • An adult female dog was presented for evaluation of mammary gland masses. Complete blood count and serum chemistry data were within normal limits. Fine-needle aspiration cytology of the mammary masses revealed clusters of malignant epithelial cells with clear cytoplasmic vacuoles. Based on histopathological findings, a diagnosis of lipid-rich mammary carcinoma was made. Approximately 5 weeks after surgical removal, the tumor recurred at the surgery site and metastasis to the tibia was detected. Due to the poor prognosis and deterioration of the condition, the dog was euthanized.

Concurrent primary malignant tumors in mammary gland and uterus with pyometra and inguinal hernia

  • Seung-Hyun Kim;Jun-Gyu Park;Seong-Soo Kang;Se-Eun Kim;Kwangsik Jang;Bock-Gie Jung;Sang-Ik Park;Chun-Sik Bae
    • Korean Journal of Veterinary Service
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    • v.47 no.3
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    • pp.173-178
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    • 2024
  • In this case study, we present a rare occurrence of simultaneous primary malignant neoplasms arising from the mammary gland and uterus in conjunction with pyometra and inguinal hernia. The subject, a 16-year-old intact mixed-breed dog, exhibited tubulopapillary carcinoma of the mammary gland with grade II malignancy and uterine leiomyosarcoma. Treatment involved partial mastectomy for the mammary carcinoma and ovariohysterectomy for the uterine leiomyosarcoma. Moreover, the inguinal hernia was concurrently repaired during the tumorectomies. The patient demonstrated positive postoperative progress over a span of two years, emphasizing the effectiveness of surgical intervention in managing the coinciding pathologies in an elderly canine. This unique co-occurrence of primary malignant neoplasms originating from distinct organ systems presents valuable insights into diagnostic approaches, disease characteristics, and surgical interventions in the realm of clinical oncology.

Single and Fractionated Irradiation of Mammary Tumor of Rat (백서 유방암의 단일 및 분할 조사시 방사선치료 효과)

  • Ha, Sung-Whan;Huh, Seung-Jae;Park, Charn-Il
    • Radiation Oncology Journal
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    • v.2 no.2
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    • pp.173-175
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    • 1984
  • The therapeutic effect of mammary breast cancer of rat (Sprague Dawley) was estimated by single and 5 fractionated irradiation of $Co^{60}-\gamma-ray$. Response rates over 50a were 20, 43, 67, $80\%$ respectively by single dose irradiation of 800, 1,200, 1,600, 2,000 rad, and 20,38, 57, $88\%$ by 5 fractionated irradiation of 1,400, 2,100, 2,800, 3,500 rad. $50\%$ tumor control dose$(TCD_{50})$ were 1,282rad, 2,312rad respectively with single and fractionated irradiation.

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