Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0242379 (lung cancer)
 71,905 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

The level of serum angiotensin-converting enzyme (ACE) was elevated in 15 of 17 patients with active sarcoidosis. Serum ACE was studied to determine the effect of chronic lung disease upon the blood level of an enzyme believed to originate from the lungs. The assay was performed in approximately 200 control subjects and 200 patients with chronic lung disease using hippuryl-L-histidyl-L-leucine as substrate. Enzyme activity greater in male control subjects than in female subjects of comparable age and greater in children than in adults. Serum ACE was significantly reduced in patients with chronic obstructive lung disease, lung cancer, tuberculosis and cystic fibrosis, as compared to control subjects, and was even lower in those receiving corticosteroids. Of greatest interest, however, was that levels in patients with active sarcoidosis not receiving steroids were greater than 2 standard deviations above the mean for the adult control subjects (greater than 11.6 units) whereas levels in patients with sarcoidosis receiving steroids and in those with resolved disease were normal. A survey of subjects with other granulomatous diseases failed to reveal any other condition that was significantly associated with a similar elevation of serum ACE levels. Elevation of ACE levels in sarcoidosis appears to be associated with the active disease process and does not appear to be a familial inherited enzyme abnormality. An assay of serum ACE is a useful tool for regulating therapy in sarcoidosis and for confirming the diagnosis, since it readily distinguishes these patients from others with tuberculosis, lung cancer or lymphoma.
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PMID:Elevation of serum angiotensin-converting-enzyme (ACE) level in sarcoidosis. 16 92

Using a spectrophotometric assay with L-hippuryl-L-histidyl-L-leucine as substrate, s-angiotensin-converting enzyme (SACE) was determined in 85 sarcoidosis patients, 116 healthy controls and 150 patients with various non-sarcoid diseases. The controls showed no sex or age variation and had SACE levels of 24.4 +/- 6.2 U/ml (mean +/- 1 S.D.), giving a normal range (mean +/- 2 S.D.) of 12.0-36.8 U/ml. In contrast, the sarcoidosis patients had SACE values of 38.4 +/- 14.4 U/ml, with the highest values in cases with active sarcoidosis and duration of disease longer than two years (49.0 +/- 12.7 U/ml). A total of 41% of the sarcoidosis patients had elevated SACE, in the chronic active group 85%. Patients with renal failure, Hodgkin's disease and other malignant lymphoma had low SACE, whereas patients with lung cancer and tuberculosis had normal SACE values. Among 266 patients with non-sarcoid diseases and healthy controls, only two had slightly elevated SACE, but so far we have not found SACE above 40 U/ml in other than sarcoidosis patients. An elevated SACE is rather specific in sarcoidosis and seems to be a useful supplement to existing diagnostic measures.
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PMID:Angiotensin-converting enzyme in sarcoidosis. 22 28

Inhibition of leukocyte migration in agarose-agar was used as a probe for tumor-associated antigen in 3-M KCl solubilized extracts of gastric, colon, and lung cancers from humans. Twelve of 40 (30%) leukocyte preparations from gastric cancer patients, 10 of 21 (48%) from colon cancer patients, and 7 of 14 (50%) from lung cancer patients were inhibited by their respective histologically homologus cancer extract. However, among 75 preparations from various cancer patients, leukocytes from only 2 gastric cancer patients were inhibited by paired normal gastric tissue extracts. Only 2 of 68 preparations from normal individuals and none of 67 preparations from patients with nonmalignant diseases, such as gastric peptic ulcer, gastritis, colon polyposis, colitis, pulmonary tuberculosis, chronic bronchitis, and sarcoidosis, were inhibited by cancer extracts. These findings suggest the presence in KCl extracts of gastric cancer of presumed tumor-associated antigen(s) that is antigenically distinct from that of either colon or lung cancer.
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PMID:Inhibition of human leukocyte migration in agar by 3-M potassium chloride extracts of stomach, colon, and lung cancers. 28 34

The diagnostic value of 374 mediastinoscopies with biopsies from 1958-1971 is shown. The procedure has been evaluated earlier. The observation period in this report is so long that the clinical diagnoses are very reliable and give the material special interest. Over 90 per cent of sarcoidosis cases were diagnosed. The procedure is also shown to be of great value in investigating doubtful radiographic changes in the lungs and mediastinum. Mediastinoscopy showed tumor invasion of the mediastinal lymph glands in 79 of 216 patients with lung cancer so that 79 patients were spared thoracotomy. Mediastinoscopy can also be used to assess tumor spread in the planning of radiotherapy. In order to carry out a satisfactory lung diagnosis it is necessary to use mediastinoscopy.
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PMID:The value of mediastinoscopy--experience of 374 cases. 65 Jul 19

During the last few years, cytological examinations of the intrathoracic lymph nodes have become a usual method of bronchological examinations, being applied by way of routine. Taking the analysis of 3408 perbronchial and pertracheal lymph node punctions as a basis, the author discusses the results. Mostly the intrathoracic nodes of lung cancer patients were examined. A metastasization could be detected in 58 per cent. At sarcoidosis and tuberculosis the results correspond to those of mediastinoscopy. The occurrence of the cholesterol crystals is mentioned. Occasionally, megacaryocytes and immature cells of the hematopoiesis are found in the lymph nodes. Due to the favourable anatomic conditions, also normal lymph nodes are accessible to perbronchial punction.
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PMID:[Cytological examination of the intrathoracic lymph nodes (author's transl)]. 69 45

Leucocyte inhibition migration test (LMT) with BCG and PPD was applied in pulmonary tuberculosis, lung cancer and sarcoidosis. No significant differences were noticed in the results obtained with each of the two antigenic materials; nevertheless, one case lobectomized of lung cancer successively treated with chemiotherapie and immunostimulation with BCG presented LMT positivity with BCG and negativity with PPD. The unpublished results of the former investigations carried out with brute tuberculin (LMT) on patients with pulmonary tuberculosis are here reported no significant difference was noticed between the results obtained with brute tuberculin, and the results with PPD. The still unsettled problem presented by the lack of inhibition in the presence of PPD in leucocyte migration test in patients with areactive (AA) and intermediate areactive (AI) tuberculosis is also briefly discussed. Finally, the existence of a dissociation between the cutaneous delayed test and the in vitro test for the detection of cellular sensibilisation is confirmed even when LMT is applied either in the presence of BCG or of PPD.
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PMID:[Studies of cellular sensitization to BCG and PPD using leukocyte cell migration inhibition]. 78 81

The elevation of complement level in the sera and depressed state of tuberculin reaction were observed in lung cancer patients. A clinical follow-up study demonstrated negative conversion of tuberculin reaction while keeping the complement at an elevated level during the observation period. This phenomenon can be explained; the complement system is elevated to compensate the depressed cell-mediated system to prevent the immunological surveillance system from invading agents in tumor bearing hosts. The immunological states of the patients with various diseases are classified into six stages according to the tuberculin reactivity, positive or negative, and complement level: elevated, normal, or depressed. A healthy control group is composed of the group of complement normal and tuberculin positive (Stage I). Most of acute inflammation falls into the elevated level of both complement and positive tuberculin reaction (Stage II). Sarcoidosis, leprosy, and Wegener's granulomatosis are divided into the elevated level of complement and depressed tuberculin reaction (Stage III). Systemic lupus erythematosus is in Stage V with the depressed state of both tuberculin reaction and complement level. A follow-up study of lung cancer patients showed a possible chronological sequence starting from Stage I through III, and finally to V, similar to the progression-of-disease process. The biological and medical significance related to the phenomenon is discussed, standing upon immunochemical, phylogenical, and immunogenetical standpoints of complement research.
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PMID:The complement system in tumor immunity: significance of elevated levels of complement in tumor bearing hosts. 107 66

In a consectuive series of 734 patients with malignant tumorous of the lung, sarcoid reactions were observed in the mediastinal lymph nodes in 20 cases, i.e. in 3.2% of the 630 patients in whom these nodes were studied. Among these 20 patients, sarcoidosis was suspected in three. In two of these, granulomata were revealed in the tumour. Another two had metastases in the affected lymph nodes. All the common histological types of lung tumour were represented in the patients, but squamous-cell carcinomata showed a statistically significant preponderance as compared with anaplastic carcinomata. Three causes of such sarcoid reactions have been suggested: 1. an immunological reaction to substances released by the tumour and transported along the lymphatics; 2. an unrecognized sarcoidosis predisposing to lung cancer; 3. the co-existence of sarcoidosis and malignant tumour, possibly due to a common aetiological factor. The significant preponderance of squamous-cell carcinomata observed in this study is in favour of the first theory, because the slower growth and higher tendency to necrosis of this tumour type may be assumed to give rise to a more vigorous and longer-lasting stimulation of the regional lymph nodes.
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PMID:Sarcoid reactions in pulmonary neoplasms. 114 49

Concentration of alpha-fetoprotein (AFP) may be increased in some type of lung cancer. In the study concentration of AFP was evaluated in serum and broncho-alveolar lavage fluid (BALF) in patients with lung cancer. The values of concentration were compared with results obtained from patients with other diseases of the respiratory tract. Examinations were performed in 14 patients with lung cancer, 12 with sarcoidosis, 23 with chronic obstructive bronchitis and 16 with acute bronchitis. Liver pathology was excluded according to biochemical analytical tests. In all patients bronchofibroscopy was performed and BALF was obtained in routine way. Concentration of AFP in serum and BALF was determined by immuno-assay technique. In performed examinations non significant increase of AFP concentration was determined in serum and BALF of patients with lung cancer. However, obtained values were increased twice than in patients with acute bronchitis. Moreover, it was noticed that in patients with chronic obstructive bronchitis the AFP concentration was the highest, especially in the group treated by steroids. The study indicates that evaluation of AFP concentration is out of value in diagnosis and differentiation of lung cancer. It seems to be necessary to continue the examinations for explanation a role of steroids in inflammatory process and increase of AFP concentration.
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PMID:[Alpha fetoprotein levels in the serum and bronchoalveolar lavage fluid in patients with lung cancer and other diseases of the respiratory system]. 128 67

We tested the cellular immunity of the patients with pulmonary sarcoidosis (n = 16) and primary lung cancer (n = 14). The data showed that PHA-p induced peripheral blood lymphocyte (PBL) proliferation and interleukin 2 (IL-2) productivity were significantly reduced in both patients groups, and also the PBL proliferation induced by exogenous recombined IL-2 was reduced, but not significantly (P > 0.05) compared with normal central. Our results suggested that cellular immunodepression may exist in pulmonary sarcoidosis and primary lung cancer patients, the exogenous IL-2 can partly restore the reduced PBL proliferation. So the cytokine may play a role in the immunologic treatment of lung cancer and the research of pulmonary sarcoidosis.
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PMID:[Evaluation of cellular immunity in pulmonary sarcoidosis and primary lung cancer]. 132 51


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