MyMedR

Fulltext Circulating cytokines and small molecules follow distinct expression patterns in acute myeloid leukaemia

Islam M, Mohamed EH, Esa E, Kamaluddin NR, Zain SM, Yusoff YM, et al.

Br. J. Cancer, 2017 Nov 07;117(10):1551-1556.

PMID: 28898234 DOI: 10.1038/bjc.2017.316

BACKGROUND: Although aberrant expression of cytokines and small molecules (analytes) is well documented in acute myeloid leukaemia (AML), their co-expression patterns are not yet identified. In addition, plasma baselines for some analytes that are biomarkers for other cancers have not been previously reported in AML.

METHODS: We used multiplex array technology to simultaneously detect and quantify 32 plasma analyte (22 reported analytes and 10 novel analytes) levels in 38 patients.

RESULTS: In our study, 16 analytes are found to be significantly deregulated (13 higher, 3 lower, Mann-Whitney U-test, P-value <0.005), where 5 of them have never been reported before in AML. We predicted a seven-analyte-containing multiplex panel for diagnosis of AML and, among them, MIF could be a possible therapeutic target. In addition, we observed that circulating analytes show five co-expression signatures.

CONCLUSIONS: Circulating analyte expression in AML significantly differs from normal, and follow distinct expression patterns.

Fulltext Host genetic variants of ABCB1 and IL15 influence treatment outcome in paediatric acute lymphoblastic leukaemia

Lu Y, Kham SK, Ariffin H, Oei AM, Lin HP, Tan AM, et al.

Br. J. Cancer, 2014 Mar 18;110(6):1673-80.

PMID: 24434428 DOI: 10.1038/bjc.2014.7

Host germline variations and their potential prognostic importance is an emerging area of interest in paediatric ALL.

Anti-tumour promoter activity in Malaysian ginger rhizobia used in traditional medicine

Vimala S, Norhanom AW, Yadav M

Br. J. Cancer, 1999 Apr;80(1-2):110-6.

PMID: 10389986

Zingiberaceae rhizomes commonly used in the Malaysian traditional medicine were screened for anti-tumour promoter activity using the short-term assay of inhibition of 12-O-tetradecanoyl phorbol-13-acetate (TPA)-induced Epstein-Barr virus early antigen (EBV-EA) in Raji cells. The inhibition of TPA-induced EBV-EA was detected using the indirect immunofluorescence assay (IFA) and Western blot technique. The indirect IFA detected the expression/inhibition of EBV-EA-D (diffused EA antigen), whereas the Western blot technique detected the expression/inhibition of both EBV-EA-D and EA-R (restricted EA antigen). Seven rhizomes were found to possess inhibitory activity towards EBV activation, induced by TPA; they are: Curcuma domestica, C. xanthorrhiza, Kaempferia galanga, Zingiber cassumunar, Z. officinale, Z. officinale (red variety), and Z. zerumbet. A cytotoxicity assay was carried out to determine the toxicity of the Zingiberaceae rhizome extracts. The rhizome extracts that exhibited EBV activation inhibitory activity had no cytotoxicity effect in Raji cells. Therefore, the present study shows that several Zingiberaceae species used in Malaysian traditional medicine contain naturally occurring non-toxic compounds that inhibit the EBV activation, which, if further investigated, could contribute in the development of cancer prevention methods at the tumour-promoting stage.

Tumour promoter activity in Malaysian Euphorbiaceae

Norhanom AW, Yadav M

Br. J. Cancer, 1995 Apr;71(4):776-9.

PMID: 7710943

Herbal medication has been practised by the rural Malaysian Malays for a long time. However, the long-term side-effects have never been studied. In the present study, 48 species of Euphorbiaceae were screened for tumour-promoter activity by means of an in vitro assay using a human lymphoblastoid cell line harbouring the Epstein-Barr virus (EBV) genome. Twenty-seven per cent (13 out of 48) of the species tested were found to be positive, and in four species, namely Breynia coronata Hk.f, Codiaeum variegatum (L) Bl, Euphorbia atoto and Exocoecaria agallocha, EBV-inducing activity was observed when the plant extracts were tested at low concentrations of between 0.2 and 1.2 micrograms ml-1 in cell culture. This observation warrants attention from the regular users of these plants because regular use of plants with tumour-promoting activity could well be an aetiological factor for the promotion of tumours among rural Malaysian Malays.

Fulltext Fruit and vegetable consumption in relation to hepatocellular carcinoma in a multi-centre, European cohort study

Bamia C, Lagiou P, Jenab M, Aleksandrova K, Fedirko V, Trichopoulos D, et al.

Br. J. Cancer, 2015 Mar 31;112(7):1273-82.

PMID: 25742480 DOI: 10.1038/bjc.2014.654

BACKGROUND: Vegetable and/or fruit intakes in association with hepatocellular carcinoma (HCC) risk have been investigated in case-control studies conducted in specific European countries and cohort studies conducted in Asia, with inconclusive results. No multi-centre European cohort has investigated the indicated associations.

METHODS: In 486,799 men/women from the European Prospective Investigation into Cancer and nutrition, we identified 201 HCC cases after 11 years median follow-up. We calculated adjusted hazard ratios (HRs) for HCC incidence for sex-specific quintiles and per 100 g d(-1) increments of vegetable/fruit intakes.

RESULTS: Higher vegetable intake was associated with a statistically significant, monotonic reduction of HCC risk: HR (100 g d(-1) increment): 0.83; 95% CI: 0.71-0.98. This association was consistent in sensitivity analyses with no apparent heterogeneity across strata of HCC risk factors. Fruit intake was not associated with HCC incidence: HR (100 g d(-1) increment): 1.01; 95% CI: 0.92-1.11.

CONCLUSIONS: Vegetable, but not fruit, intake is associated with lower HCC risk with no evidence for heterogeneity of this association in strata of important HCC risk factors. Mechanistic studies should clarify pathways underlying this association. Given that HCC prognosis is poor and that vegetables are practically universally accessible, our results may be important, especially for those at high risk for the disease.

Fulltext Differential p16/INK4A cyclin-dependent kinase inhibitor expression correlates with chemotherapy efficacy in a cohort of 88 malignant pleural mesothelioma patients

Jennings CJ, Murer B, O'Grady A, Hearn LM, Harvey BJ, Kay EW, et al.

Br. J. Cancer, 2015 Jun 30;113(1):69-75.

PMID: 26057448 DOI: 10.1038/bjc.2015.187

Malignant pleural mesothelioma (MPM) is a rare and essentially incurable malignancy most often linked with occupational exposure to asbestos fibres. In common with other malignancies, the development and progression of MPM is associated with extensive dysregulation of cell cycle checkpoint proteins that modulate cell proliferation, apoptosis, DNA repair and senescence.

Fulltext Utility of pre-treatment neutrophil-lymphocyte ratio and platelet-lymphocyte ratio as prognostic factors in breast cancer

Koh CH, Bhoo-Pathy N, Ng KL, Jabir RS, Tan GH, See MH, et al.

Br. J. Cancer, 2015 Jun 30;113(1):150-8.

PMID: 26022929 DOI: 10.1038/bjc.2015.183

Peripheral blood-derived inflammation-based scores such as the neutrophil-lymphocyte ratio (NLR) and platelet-lymphocyte ratio (PLR) have recently been proposed as prognostic markers in solid tumours. Although evidence to support these markers as unfavourable prognostic factors is more compelling in gastrointestinal cancers, very little is known of their impact on breast cancer. We investigated the association between the NLR and PLR, and overall survival after breast cancer.

A case-control study of cervix cancer in Singapore

Cuzick J, De Stavola B, McCance D, Ho TH, Tan G, Cheng H, et al.

Br. J. Cancer, 1989 Aug;60(2):238-43.

PMID: 2548559

Cervix cancer is about twice as common in Asia as in the Western world and its incidence varies among different Asian ethnic groups. A study based in Singapore, the population of which comprises Chinese, Indians and Malaysians, offers the opportunity to evaluate whether the same risk factors are important in this part of the world as in the West. A total of 135 cases and an equal number of controls were interviewed and details concerning reproductive and sexual history, smoking, hygiene, socio-economic status and education were collected. Seventy-three cases had invasive cancer while 62 had micro-invasive disease or CIN III. The most important risk factors were parity and number of sexual partners. Smoking was rare in cases and controls and did not appear to be an important determinant of risk. Of the socio-economic factors, education appeared most predictive and lowered the risk. Age at first intercourse was strongly correlated with education (positively) and parity (negatively), but not with number of sexual partners. Biopsies were available for HPV DNA analysis in 38 cases and 37% were positive, mostly for HPV type 16. All these factors gave similar risks in invasive and preinvasive disease.

Fulltext Cancer in Sabah (Borneo) a prelimanry survey

Muir CS, Evans MD, Roche PJ

Br. J. Cancer, 1968 Dec;22(4):637-45.

PMID: 5705133 DOI: 10.1038/bjc.1968.75

Fulltext Incidence of nasopharyngeal carcinoma in Malaysia, 1968--1977

Armstrong RW, Kannan Kutty M, Dharmalingam SK, Ponnudurai JR

Br. J. Cancer, 1979 Oct;40(4):557-67.

PMID: 497106

A record of all known cases of nasopharyngeal carcinoma in Malaysia is complete for 10 years from 1968 to 1977. Special efforts in case-finding were made in the State of Selangor where conditions are optimal. Age-adjusted incidence rates among Chinese males and females were 16.5 and 7.2 per 100,000, among Malay males and females 2.3 and 0.7 and among Indian males, 1.0. There were no significant changes in incidence rates over the 10-year period for sex and ethnic groups, or for Chinese subethnic groups. In Chinese subethnic groups, rates were highest among Cantonese, moderate among Khek and lowest among Hokkien and Teochiu. Standardized incidence ratios using Selangor as the standard population indicate considerable under-reporting in the less urban states of Malaysia, particularly among females. In Selangor, incidence rates were similar for urban and rural residents, but the frequency of cases was higher among Chinese working in industry and living in poor neighbourhoods.

Cancer in Sarawak (Borneo). A preliminary survey

Muir CS, Oakley WF

Br. J. Cancer, 1966 Jun;20(2):217-25.

PMID: 5944267

Cancer of the lung, trachea and larynx in singapore

Muir CS

Br. J. Cancer, 1960;14:1-7.

DOI: 10.1038/bjc.1960.1

The main morbid anatomical features of the 176 lung, the 2 tracheal, and the 13 laryngeal cancers seen in the 22,997 post-mortems performed by the University and Government Departments of Pathology, Singapore, from 1948-58 inclusive, are described, and are seen to be as elsewhere. About one-tenth of all cancers admitted to hospital, and of all cancers registered by the Registrar-General (Singapore) from 1954-58 inclusive were in the lung. In 15 per cent of all post-mortems on persons with malignant disease, the primary tumour was of pulmonary origin. The crude death rate for cancer of the lung in Singapore for 1954-58 inclusive was 0-065 per 1000 living per annum. More cases of lung cancer are seen before the age of 40 than in the West. The consumption of tobacco in Singapore is noted to be 3-7 lb. (1.7 kg) per person per annum. A portion of the literature on cancer of the lung in South-East Asia and in China is discussed. I wish to thank Professor R. Kirk for kind help and encouragement, my colleagues of the Government and University Departments of Pathology for access to their post-mortem notes and records, Mr. E. J. Phillips and Mr. S. C. Chua of the Department of Statistics, Singapore, and Mr. Lee of the Customs Department, Singapore, for various data, Mr. Ti Teow See for Fig. 1, and Mr. P. A. Samuel who typed the script. This communication forms part of a thesis for the degree of Ph.D. (Malaya). © 1960, The British Empire Cancer Campaign for Research. All rights reserved.

The geographical pathology of cancer in Malaya

MARSDEN AT

Br. J. Cancer, 1958 Jun;12(2):161-76.

PMID: 13546515

The distinctive features of the tumours of the salivary glands in Malaya

MARSDEN AT

Br. J. Cancer, 1951 Dec;5(4):375-81.

PMID: 14904833

Salivary gland tumours in Malaya

Loke YW

Br. J. Cancer, 1967 Dec;21(4):665-74.

PMID: 6074690

Nasopharyngeal cancer in the Malays

Loke YW

Br. J. Cancer, 1966 Jun;20(2):226-30.

PMID: 5944268

Fulltext Lymphoepitheliomas of the cervical lymph nodes

Loke YW

Br. J. Cancer, 1965 Sep;19(3):482-5.

PMID: 5833066 DOI: 10.1038/bjc.1965.56

Fulltext Mutant p53 mediates survival of breast cancer cells

Lim LY, Vidnovic N, Ellisen LW, Leong CO

Br. J. Cancer, 2009 Nov 3;101(9):1606-12.

PMID: 19773755 DOI: 10.1038/sj.bjc.6605335

p53 is the most commonly mutated tumour-suppressor gene in human cancers. Unlike other tumour-suppressor genes, most p53 cancer mutations are missense mutations within the core domain, leading to the expression of a full-length mutant p53 protein. Accumulating evidence has indicated that p53 cancer mutants not only lose tumour suppression activity but also gain new oncogenic activities to promote tumourigenesis.

The effects of betel-nut chewing on the buccal mucosa of 296 Indians and Malays in West Malaysia. A clinical study

Chin CT, Lee KW

Br. J. Cancer, 1970 Sep;24(3):427-32.

PMID: 5475750

Changes in the buccal mucosa of 296 Indian and Malay betel-nut chewers in Perak, West Malaysia, were studied clinically. 167 out of 212 Indian subjects incorporated tobacco in their quids, while 45 out of 84 Malay subjects incorporated. "Gambir". The Indians appeared to show a higher proportion of mucosal changes, particularly when tobacco was used. "Gambir" did not appear to be potent in the production of mucosal changes. Comparison with studies in other parts of the world suggested comparable findings with respect to both tobacco and non-tobacco chewing samples, and there would appear to be some evidence that tobacco-containing quids are likely to produce a higher proportion of mucosal changes as compared to non-tobacco-containing quids. An attempt to demonstrate a dose-effect relationship by dividing the subjects into "slight" and "heavy" chewers did not yield significant differences between these two categories in each of the groups.

Expression of c-erbB3 protein in primary breast carcinomas

Naidu R, Yadav M, Nair S, Kutty MK

Br. J. Cancer, 1998 Nov;78(10):1385-90.

PMID: 9823984

Expression of c-erbB3 protein was investigated in 104 primary breast carcinomas comprising nine comedo ductal carcinoma in situ (DCIS), 91 invasive ductal carcinomas and four invasive lobular carcinomas using two monoclonal antibodies, RTJ1 and RTJ2. Of the 91 invasive ductal carcinomas, seven contained the comedo DCIS component adjacent to the invasive component. An immunohistochemical technique was used to evaluate the association between expression of c-erbB3 and clinical parameters and tumour markers such as epidermal growth factor receptor (EGFR), c-erbB2, cathepsin-D and p53 in archival formalin-fixed paraffin-embedded tumour tissues. Our results indicated that RTJ1 and RTJ2 gave identical staining patterns and concordant results. It was found that the overexpression of c-erbB3 protein was observed in 67% (6/9) of comedo DCIS, 52% (44/84) of invasive ductal carcinomas, 71% (5/7) of carcinomas containing both the in situ and invasive lesions and 25% (1/4) of invasive lobular carcinomas. A significant relationship (P < 0.05) was observed between strong immunoreactivity of c-erbB3 protein and histological grade, EGFR and cathepsin-D, but not with expression of c-erbB2, p53, oestrogen receptor status, lymph node metastases or age of patient. However, we noted that a high percentage of oestrogen receptor-negative tumours (59%), lymph node-positive tumours (63%) and c-erbB2 (63%) were strongly positive for c-erbB3 protein. We have also documented that a high percentage of EGFR (67%), c-erbB2 (67%), p53 (75%) and cathepsin-D-positive DCIS (60%) were strongly positive for c-erbB3. These observations suggest that overexpression of c-erbB3 protein could play an important role in tumour progression from non-invasive to invasive and, also, that it may have the potential to be used as a marker for poor prognosis of breast cancer.

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