• Title/Summary/Keyword: Brain cancer

Search Result 664, Processing Time 0.022 seconds

Microglial Contribution to Glioma Progression: an Immunohistochemical Study in Eastern India

  • Ghosh, Krishnendu;Ghosh, Samarendranath;Chatterjee, Uttara;Chaudhuri, Swapna;Ghosh, Anirban
    • Asian Pacific Journal of Cancer Prevention
    • /
    • v.17 no.6
    • /
    • pp.2767-2773
    • /
    • 2016
  • Human glioma, arising from glial cells of the central nervous system, accounts for almost 30%of all brain tumours, neoplasms with a poor prognosis and high mortality rates worldwide. In the present study we assessed tissue architectural modifications associated with macrophage lineage cells, controversial major immune effector cells within the brain, in human glioma tissue samples from eastern India. Ethically cleared post-operative human glioma samples from our collaborative neurosurgery unit with respective CT/MRI and patient history were collected from the Nodal Centre of Neurosciences in Kolkata, over 9 months. Along with conventional histopathology, samples were subjected to silver-gold staining and fluorescence tagged immunophenotyping for the detection of electron dense brain macrophage/microglia cells in glioma tissue, followed by immune-phenotyping of cells. With higher grades, CD11b+/Iba-1+ macrophage/microglia architecture with de-structured boundaries of glioma lesions indicated malfunction and invasive effector state. Present study documented a contribution of microglia to glioma progression in Eastern India.

Regulation of Apoptosis and Cell Cycle in Irradiated Mouse Brain (마우스의 대뇌조직에서 방사선에 의한 아포토시스와 세포주기의 조절)

  • Oh, Won-Yong;Song, Mi-Hee;Chung, Eun-Ji;Seong, Jin-Sil;Suh, Chang-Ok
    • Radiation Oncology Journal
    • /
    • v.19 no.2
    • /
    • pp.146-152
    • /
    • 2001
  • Purpose : To investigate the regulation of apoptosis and cell cycle in mouse brain irradiation. Materials and Methods : 8-week old male mice, C57B1/6J were given whole body $\gamma-radiation$ with a single dose of 25 Gy using Cobalt 60 irradiator. At different times 1, 2, 4, 8 and 24hr after irradiation, mice were killed and brain tissues were collected. Apoptotic cells were scored by TUNEL assay. Expression of p53, Bcl-2, and Bax and cell cycle regulating molecules; cyclins Bl, Dl, E and cdk2, cdk4, $p34^{cdc2}$ were analysed by Western blotting. Cell cycle was analysed by Flow cytometry. Results : The peak of radiation induced apoptosis is shown at 8 hour after radiation. With a single 25 Gy irradiation, the peak of apoptotic index in C57B1/6J is $24.0{\pm}0.25$ (p<0.05) at 8 hour after radiation. Radiation upregulated the expression of p53/tubulin, Bax/tubulin, and Bcl-2/tubulin with 1.3, 1.1 and 1.45 fold increase, respectively were shown at the peak level at 8 hour after radiation. The levels of cell cycle regulating molecules after radiation are not changed significantly except cyclin D1 with 1.3 fold increase. Fractions of Go-Gl, G2-M and S phase in the cell cycle does not specific changes by time. Conclusion : In mouse brain tissue, radiation induced apoptosis is particularly shown in a specific area, subependyma. These results and lack of radiation induced changes in cell cycle ofter better understanding of radiation response of noraml brain tissue.

  • PDF

CONTRALATERAL NECK LYMPH NODE METASTASIS OF EARLY TONGUE CANCER : A CASE REPORT (반대측 경부 림프절로 전이된 초기 설암의 치험례)

  • Kwon, Myung-Hee;Kim, Sung-Il;Kim, Pyoung-Soo;Leem, Dae-Ho;Shin, Hyo-Keun;Ko, Seung-O
    • Journal of the Korean Association of Oral and Maxillofacial Surgeons
    • /
    • v.35 no.5
    • /
    • pp.376-379
    • /
    • 2009
  • Likely to be the most common oral cancer, squamous cell carcinoma(SCC) of the tongue accounts for about 20% of all oral and pharyngeal cancers. SCC of the tongue frequently arises in the lateral border, and if it metastasize, it occurs on submandibular gland and neck lymph nodes. Location of the primary lesions and neck lymph node metastasis affect the prognosis and decrease survival rate of patients with carcinoma of the tongue. The authors experienced the patient with contralateral neck lymph node metastasis of SCC of the tongue. The patient came to our department with chief complaint of elevated lesion on left lateral border of the tongue. The mass was diagnosed as $T_2N_0M_0$, Stage II invasive SCC of oral tongue. Computed tomography(CT) & magnetic resonance imaging(MRI) which were taken before the operation showed no significant finding of metastasis. Surgical mass removal and preventive neck dissection on the left side were done. While follow up PET/CT, contralateral neck lymph node metastasis(right side, level II) was detected, and re-operation(Rt. side RND) was done. There are few studies concerning the contralateral neck lymph node metastasis related with SCC of the tongue. The purpose of this report is to introduce the uncommon case of contralateral neck lymph node metastasis occurred in the $T_2$-stage of SCC of the tongue treated by surgical resection.

Prognostic Factors and Scoring Systems for Non-Small Cell Lung Cancer Patients Harboring Brain Metastases Treated with Gamma Knife Radiosurgery

  • Eom, Jung-Seop;Cho, Eun-Jung;Baek, Dong-Hoon;Lee, Kyung-Nam;Shin, Kyung-Hwa;Kim, Mi-Hyun;Lee, Kwang-Ha;Kim, Ki-Uk;Park, Hye-Kyung;Kim, Yun-Sung;Park, Soon-Kew;Cha, Seong-Heon;Lee, Min-Ki
    • Tuberculosis and Respiratory Diseases
    • /
    • v.72 no.1
    • /
    • pp.15-23
    • /
    • 2012
  • Background: The survival of non-small cell lung cancer (NSCLC) patients with brain metastases is reported to be 3~6 months even with aggressive treatment. Some patients have very short survival after aggressive treatment and reliable prognostic scoring systems for patients with cancer have a strong correlation with outcome, often supporting decision making and treatment recommendations. Methods: A total of one hundred twenty two NSCLC patients with brain metastases who received gamma knife radiosurgery (GKRS) were analyzed. Survival analysis was calculated in all patients for thirteen available prognostic factors and four prognostic scoring systems: score index for radiosurgery (SIR), recursive partitioning analysis (RPA), graded prognostic assessment (GPA), and basic score for brain metastases (BSBM). Results: Age, Karnofsky performance status, largest brain lesion volume, systemic chemotherapy, primary tumor control, and medication of epidermal growth factor receptor tyrosine kinase inhibitor were statistically independent prognostic factors for survival. A multivariate model of SIR and RPA identified significant differences between each group of scores. We found that three-tiered indices such as SIR and RPA are more useful than four-tiered scoring systems (GPA and BSBM). Conclusion: There is little value of RPA class III (most unfavorable group) for the same results of 6-month and 1-year survival rate. Thus, SIR is the most useful index to sort out patients with poorer prognosis. Further prospective trials should be performed to develop a new molecular- and gene-based prognostic index model.

Cisplatin Plus Gemcitabine for Treatment of Breast Cancer Patients with Brain Metastases: a Preferential Option for Triple Negative Patients?

  • Erten, Cigdem;Demir, Lutfiye;Somali, Isil;Alacacioglu, Ahmet;Kucukzeybek, Yuksel;Akyol, Murat;Can, Alper;Dirican, Ahmet;Bayoglu, Vedat;Tarhan, Mustafa Oktay
    • Asian Pacific Journal of Cancer Prevention
    • /
    • v.14 no.6
    • /
    • pp.3711-3717
    • /
    • 2013
  • Background: To assess the efficacy and tolerability of Cisplatin plus Gemcitabine combination in patients with brain metastases (BM) from breast cancer (BC). Materials and Methods: Eighteen BC patients with BM who were treated with Cisplatin plus Gemcitabine regimen between 2003-2011 were evaluated. Results: A median of 6 cycles of this regimen were received, in fifteen patients (83.3%) as first-line chemotherapy, in 2 as second-line and in 1 as third-line after diagnosis of BM. Dose reduction was performed in 11 (61.1%) patients; major reasons were neutropenia and leukopenia. Grade III neutropenia and Grade II trombocytopenia rates were 33.3% and 16.7% respectively. Overall response rate (ORR; complete+partial response rate) was 33.4% (n=6) for the entire study population; triple negative patients achieved an 66.6% ORR while hormone receptor (HR) positive patients had 25% and HER2 positive patients 12.5%. Median progression-free survival was 5.6 months (2.4-8.8 months, 95%CI) and longer in patients with triple negative breast cancer (TNBC) (median 7.4 months, 95%CI, 2.4-12.3 months) than the patients with other subtypes (median 5 months for HER2 positive and 3.6 months for HR positive patients). Median PFS of the patients with TNBC who received this regimen as first-line was 9.2 months (5.2-13.2 months, 95%CI). Conclusions: Cisplatin plus Gemcitabine may be a treatment option for patients with BM from breast cancer. Longer PFS and higher response rates are results that support the usage of this regimen especially for the triple negative subtype. However, further prospective and randomized trials are clearly required to provide more exact information.

Melanoma in Iran: a Retrospective 10-Year Study

  • Ferdosi, Samira;Saffari, Mojtaba;Eskandarieh, Sharareh;Alishahi, Raziyeh;Moghaddam, Mahsa Ghaffari;Ghanadan, Alireza;Shirkoohi, Reza
    • Asian Pacific Journal of Cancer Prevention
    • /
    • v.17 no.6
    • /
    • pp.2751-2755
    • /
    • 2016
  • Background: Melanoma, the most life-threatening type of skin cancer, is a malignant tumor initiating in melanocytes that rapidly metastasizes and causes death. Materials and Methods: In this retrospective study, samples were selected from patients' information files in our Cancer Institute in Tehran with a designed checklist. A total of 322 files were found from 2003 until 2012. Then the raw data were transferred to Statistical Package for Social Sciences (SPSS) software version 16 and additional analysis was performed by Students t-test. The important variables were considered according to the available information from history of pathology including age, gender, occupation, stage and location of tumor. Results: Our data showed that incidence of melanoma has been different in the studied 10-year period according to age. Also, incidence of melanoma was higher in men than women. It was more common in lower limbs. More commonly housewives among women and farmers among men were affected by melanoma. Conclusions: Taken together the descriptive data clarified general aspects of this disease for further screening and interventions.

Malignant Neoplasm Prevalence in the Aktobe Region of Kazakhstan

  • Bekmukhambetov, Yerbol;Mamyrbayev, Arstan;Jarkenov, Timur;Makenova, Aliya;Imangazina, Zina
    • Asian Pacific Journal of Cancer Prevention
    • /
    • v.16 no.18
    • /
    • pp.8149-8153
    • /
    • 2016
  • An oncopathological state assessment was conducted among adults, children and teenagers in Aktobe region for 2004-2013. Overall the burden of mortality was in the range of 94.8-100.2 per 100,000 population, without any obvious trend over time. Ranking by pathology, the highest incidences among women were registered for breast cancer (5.8-8.4), cervix uteri (2.9-4.6), ovary (2.4-3.6) and corpus uteri, stomach, esophagus, without any marked change over time except for a slight rise in cervical cancer rates. In males, the first place in rank was trachea, bronchus and lung, followed by stomach and esophagus, which are followed by bladder, lymphoid and hematopoietic tissues pathology. Agian no clear trends were apparent over time. In children, main localizations in cancer incidence blood (acute lymphocytic leukemia, lymphosarcoma, acute myeloid leukemia, Hodgkin's disease), brain and central nervous system, bones and articular cartilages, kidneys, and eye and it's appendages, in both sexes. Similarly, in young adults, the major percentage was in blood and lymphatic tissues (acute myeloid leukemia, acute lymphocytic leukemia, Hodgkin's disease) a significant percentage accruing to lymphosarcoma, lymphoma, other myeloid leukemia and hematological malignancies as well as tumors of brain and central nervous system, bones and articular cartilages. This initial survey provides the basis for more detailed investigation of cancer epidemiology in Aktobe, Kazakhstan.

Diamox-enhanced Brain SPECT in Cerebrovascular Diseases (뇌혈관질환에서 다이아목스부하 뇌 단일광자방출 전산화단층촬영)

  • Choi, Yun-Young
    • Nuclear Medicine and Molecular Imaging
    • /
    • v.41 no.2
    • /
    • pp.85-90
    • /
    • 2007
  • Acute event in cerebrovascular disease is the second most common cause of death in Korea following cancer, and it can also cause serious neurologic deficits. Understanding of perfusion status is important for clinical applications in management of patients with cerebrovascular diseases, and then the attacks of ischemic neurologic symptoms and the risk of acute events can be reduced. Therefore, the normal vascular anatomy of brain, various clinical applications of acetazolamide-enhanced brain perfusion SPECT, including meaning and role of assessment of vascular reserve in carotid stenosis before procedure, in pediatric Moyamoya disease before and after operation, in prediction of development of hyperperfusion syndrome before procedure, and in prediction of vasospasm and of prognosis in subarachnoid hemorrahge were reviewed in this paper.

Understanding Protocols in Magnetic Resonance Spectroscopy: Focusing on Literature Studies (자기공명분광 검사 시 프로토콜 이해: 문헌연구 중심으로)

  • MinKyu Back;YoungHwan Ryu;EunHoe Goo
    • Journal of Radiation Industry
    • /
    • v.17 no.4
    • /
    • pp.405-409
    • /
    • 2023
  • The magnetic resonance imaging method is a technology that can diagnose patients using local magnetic field through local magnetic field through local magnetic field through local magnetic field and STEAM method using local magnetic field Currently, many diseases can diagnose many diseases using self-resonance methods. The purpose of this study is to provide optimal information about using magnetic resonance imaging method according to patients.In many studies, self-resonance imaging showed that self-resonance methods can effectively inspect brain cancer and liver diseases. mong them, this study, brain tumor tests, cervical cancer tests based on literature, there were effective parts of these four diseases, but it was clearly found that they should not use in clinical trials, but it is clearly found to improve and improve and improve. Therefore, it is believed that it will be based on the future studies.

Inhibition of Wntless/GPR177 suppresses gastric tumorigenesis

  • Seo, Jaesung;Kee, Hyun Jung;Choi, Hye Ji;Lee, Jae Eun;Park, Soo-Yeon;Lee, Seung-Hyun;Jeong, Mi-Hyeon;Guk, Garam;Lee, SooYeon;Choi, Kyung-Chul;Choi, Yoon Young;Kim, Hyunki;Noh, Sung Hoon;Yoon, Ho-Geun;Cheong, Jae-Ho
    • BMB Reports
    • /
    • v.51 no.5
    • /
    • pp.255-260
    • /
    • 2018
  • Wntless/GPR177 functions as WNT ligand carrier protein and activator of $WNT/{\beta}$-catenin signaling, however, its molecular role in gastric cancer (GC) has remained elusive. We investigated the role of GPR177 in gastric tumorigenesis and provided the therapeutic potential of a clinical development of anti-GPR177 monoclonal antibodies. GPR177 mRNA expression was assessed in GC transcriptome data sets (GSE15459, n = 184; GSE66229, n = 300); protein expression was assessed in independent patient tumor tissues (Yonsei TMA, n = 909). GPR177 expression were associated with unfavorable prognosis [log-rank test, GSE15459 (P = 0.00736), GSE66229 (P = 0.0142), and Yonsei TMA (P = 0.0334)] and identified as an independent risk predictor of clinical outcomes: GSE15459 [hazard ratio (HR) 1.731 (95% confidence interval; CI; 1.103-2.715), P = 0.017], GSE66229 [HR 1.54 (95% CI, 1.10-2.151), P = 0.011], and Yonsei TMA [HR 1.254 (95% CI, 1.049-1.500), P = 0.013]. Either antibody treatment or GPR177 knockdown suppressed proliferation of GC cells and sensitized cells to apoptosis. And also inhibition of GPR177 suppresses in vitro and in vivo tumorogenesis in GC cells and inhibits $WNT/{\beta}$-catenin signaling. Finally, targeting and inhibition of GPR177 with antibody suppressed tumorigenesis in PDX model. Together, these results suggest GPR177 as a novel candidate for prognostic marker as well as a promising target for treatment of GC patients.