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Query: UMLS:C0153690 (bone metastases)
 6,382 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

The tumors from approximately 50% of patients with breast cancer contained estrogen receptor (ER). ER appeared more often and at higher levels in the tumors of postmenopausal women. Eleven out of 12 patients who had multiple ER assays from various metastatic sites showed no significant discrepancies in ER values. ER level appears to decrease as the duration of metastatic cancer increase. Patients with ER in the tumor more frequently have bone metastases than those without ER. Visceral metastases occurred more often with ER negative patients and appeared to have a more malignant course with significant shorter survival.
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PMID:Estrogen receptor and natural course of breast cancer. 17

17 alpha-[123I]Iodovinyl-11 beta-methoxyestradiol was injected into 19 women: group 1 (n = 8), initial evaluation of breast cancer; group 2, (n = 11) postoperative follow-up including 9 patients with bone metastases. The primary tumor (size: 8-10 mm) was visualized by breast tomoscintigraphy in 2/4 patients of group 1 with high estrogen receptor concentration (162-445 fmol/mg) and was not detectable in 4 patients with low estrogen receptor concentration (6-32 fmol/mg). Axillary lymph node metastases were detected in 1 patient of group 1 and in 1 patient of group 2. In 4 patients of group 2 with previous primary tumor containing estrogen receptors, MIVE2 uptake in bone metastases was demonstrated. MIVE2 scintigraphy is an original, specific and non-invasive method for breast cancer estrogen receptor imaging in primary and in metastatic tumors.
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PMID:Estrogen receptor imaging with 17 alpha-[123I]iodovinyl-11 beta-methoxyestradiol (MIVE2)--Part II. Preliminary results in patients with breast carcinoma. 162 15

A series of 258 breast cancer patients with known estrogen receptor (ER) status of the primary tumour who subsequently developed metastases were reviewed for site of first metastasis. In 188 cases progesterone receptor (PgR) data were also available. Univariate analysis showed metastatic patterns to differ statistically significantly related to ER status and (less pronounced) PgR status of the primary tumour. Patients with ER-positive tumours had bone metastases three times more often than patients with ER-negative tumours. With respect to PgR-positive and PgR-negative tumours this frequency differed by a factor of two. With regard to visceral metastases ER and PgR status were equally potent prognosticators, patients with receptor negative tumours having a 50% higher frequency of visceral metastasis than patients with receptor positive tumours. Assessment of metastatic patterns in relation to combined receptor status did not substantially enhance the discriminatory value of ER and PgR when assessed separately. Multivariate analysis showed that the observed differences in metastatic patterns were all attributable to differences in the ER status of the primary tumour, and were not influenced by age, menopausal status, axillary lymph node involvement, duration of disease-free interval (DFI), mode of postoperative treatment, or the PgR status of the primary tumour.
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PMID:Steroid hormone receptor activity of primary human breast cancer and pattern of first metastasis. The Breast Cancer Study Group. 185 77

The present study was designed to assess the preferred methods of treatment of breast cancer by American oncologists, and the impact of clinical trials on their practice. We mailed 465 questionnaires to surgical, radiation, or medical oncologists. The questionnaire described five hypothetic patients with breast cancer, and respondents were asked to select their preferred treatment for each patient. For primary breast cancer, most physicians would offer the choice of local excision followed by radiation therapy or modified radical mastectomy. About 80% of physicians would prescribe adjuvant chemotherapy for a premenopausal woman with estrogen receptor-negative, axillary node negative breast cancer, and for a postmenopausal woman with estrogen receptor-negative, node-positive disease. This policy was favored by male and female physicians of each specialty. Almost all respondents would treat a young woman with inflammatory breast cancer with initial chemotherapy followed by radiation and/or surgery, and about 60% would recommend chemotherapy to a postmenopausal patient with estrogen receptor-negative disease and minimally symptomatic bone metastases. Clinical trials have compared treatment strategies that could be applied to patients described in our questionnaire. Preferred treatments for primary breast cancer, and for inflammatory breast cancer are supported by the results of clinical trials. Recommendation of adjuvant chemotherapy for node-negative breast cancer is not based on a consistent demonstration of improvement in survival, although randomized trials with short follow-up have shown delay to recurrence. Recommendation of adjuvant chemotherapy for a postmenopausal woman with node-positive breast cancer is contrary to the results of large randomized controlled trials (and to a meta-analysis), which have shown that this policy does not lead to improved survival. Our report suggests that even large randomized clinical trials may have a minimal impact on practice if their results run counter to belief in the value of the treatment.
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PMID:How American oncologists treat breast cancer: an assessment of the influence of clinical trials. 198 72

Between 1978 and 1981 we conducted a trial (Trial II) in premenopausal and perimenopausal breast cancer patients with 4 or more metastatic axillary lymph nodes. 327 evaluable patients were randomized after at least a total mastectomy and axillary clearance to receive either a combination chemotherapy with cyclophosphamide, methotrexate, 5-fluorouracil, and low-dose prednisone (CMFp), or surgical oophorectomy followed by the same CMFp therapy (Ox + CMFp). Cytotoxic drugs were administered for 12 4-week courses. At a median follow-up of 96 months, the 8-year disease-free survival (DFS) percentages (+/- s.e.) for CMFp and Ox + CMFp were 30% +/- 4% and 37% +/- 4%, respectively (p = 0.17). The overall survival percentages were 41% +/- 4% and 50% +/- 4%, respectively (p = 0.20). In a subgroup analysis by estrogen receptor content of the primary, the differences were observed in patients with tumors classified as ER+ (8-year DFS: 26% +/- 7%, 41% +/- 7%; p = 0.09) but not in those with ER- tumors (8-year DFS: 29% +/- 7%, 25% +/- 7%; p = 0.92). Analysis of sites of first relapse showed that the difference between the two treatment groups can be entirely attributed to the reduction in bone metastases in the oophorectomized group (Ox + CMFp). We conclude that for very high risk premenopausal breast cancer patients, the effects of oophorectomy added to an adjuvant cytotoxic regimen will be observed late in the patients' follow-up period. We hypothesize that the reduction of relapses in distant sites is due to the extended effects of the endocrine therapy.
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PMID:Late effects of adjuvant oophorectomy and chemotherapy upon premenopausal breast cancer patients. 207 83

Fifteen patients with breast cancer who had skeletal metastases already present at the time the primary breast lesion was detected, were retrospectively identified. The majority were postmenopausal, estrogen receptor-positive, and had large (often neglected) primary lesions. Eleven patients were asymptomatic with respect to their skeletal metastases, although bone scans and bone roentgenograms revealed multiple areas of involvement in all patients. The median survival from the time of diagnosis was 33 months (range, 1-74 months); the 5-year actuarial survival was 45%. Systemic therapy with hormones or chemotherapy was effective in producing subjective responses; radiotherapy to painful bony areas was also an effective palliative treatment. Median survival in this group of patients was significantly improved when compared to our breast cancer patients who had extraskeletal metastases at initial diagnosis (33 versus 9 months, respectively), and to previously reported series of breast cancer patients with metastases at initial diagnosis. Since patients with Stage IV breast cancer and metastases limited to the skeleton often have prolonged survival, complications from bone metastases (e.g. pathologic fracture, epidural spinal cord compression) and other intercurrent illnesses should be managed aggressively.
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PMID:Breast cancer with skeletal metastases at initial diagnosis. Distinctive clinical characteristics and favorable prognosis. 242 24

The aim of this literature study is to evaluate the various endocrine drugs used in the treatment of breast cancer in order to compare their therapeutic efficacy. Hormone-dependent metastasized breast cancer of post-menopausal women can be treated with four equivalent drugs: tamoxifen, megestrol, medroxyprogesterone, and--combined with steroid suppletion therapy--aminoglutethimide. Each of these drugs induces (partial) remissions in 50-60% of estrogen receptor-positive tumors. Because of its relatively few and less serious side-effects tamoxifen is the agent of first choice for soft tissue and lung metastases. Due to its potentially enhanced objective and more pronounced subjective side-effects, aminoglutethimide may be preferred in bone metastases. In view of the only minor activity of hormonal agents in liver metastases, combination chemotherapy with concomitant, sequential or alternating use of hormonal agents should be considered in this condition. Until now, only tamoxifen seems suitable for the treatment of premenopausal metastasized hormone-dependent breast cancer. In the adjuvant setting, preoperatively initiated and as soon as possible postoperatively continued endocrine therapy seems to be of the utmost importance to counteract (occult) metastases while reducing the need for extensive surgery.
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PMID:Endocrine therapy of breast cancer. 304 48

Patients with advanced breast cancer may develop acute, severe hypercalcemia when treated with estrogens or antiestrogens. In this study, we examined the effects of estrogens and related compounds on the release of bone resorbing activity by cultured human breast cancer cells in vitro. We found that the estrogen receptor positive breast cancer cell line MCF-7 releases bone resorbing activity in response to low concentrations of 17 beta-estradiol. Bone resorbing activity was also released in response to the antiestrogen nafoxidine. Other steroidal compounds had no effect on the release of bone resorbing activity. Estrogen-stimulated release of bone resorbing activity occurred with live bone cultures, but not with devitalized bones, indicating that the effect was bone cell mediated. The breast cancer cell line MDA-231, which does not have estrogen receptors, did not release bone resorbing activity in response to 17 beta-estradiol or nafoxidine. Release of the bone resorbing activity by MCF-7 cells incubated with 17 beta-estradiol was inhibited by indomethacin (10 microM) and flufenamic acid (50 microM), two structurally unrelated compounds that inhibit prostaglandin synthesis. Concentrations of 17 beta-estradiol and nafoxidine that caused increased release of bone resorbing activity by the breast cancer cells caused a four- to fivefold increase in release of prostaglandins of the E series by MCF-7 cells. These data may explain why some patients with advanced breast cancer develop acute hypercalcemia when treated with estrogens or antiestrogens, and why bone metastases are more common in patients with estrogen receptor positive tumors.
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PMID:Estrogens and antiestrogens stimulate release of bone resorbing activity by cultured human breast cancer cells. 385 65

Breast cancer metastasizes to bone more frequently than to any other organ, and over 80% of advanced breast cancer patients develop bone metastases. Our recent demonstration that human breast cancer cells express bone sialoprotein (BSP), a bone matrix protein, provides a possible clue for the selective affinity of breast cancer cells for bone. We tested the hypothesis that detection of BSP in primary human breast cancer could be a potential indicator of the ability of breast cancer cells to metastasize to bone. BSP expression was evaluated in the primary breast cancers of 39 patients using immunoperoxidase and two specific anti-BSP antibodies. None of these patients presented clinically or scintigraphically detectable bone metastases at the time of surgery. In the course of their disease, 22 patients developed clinically diagnosed bone metastases. Expression of BSP in breast cancer cells from patients who developed bone metastases was significantly higher (p = 0.008, according to the Mann-Whitney test) than in patients with no bone involvement. No association was found between BSP expression in the primary breast lesions and axillary lymph node metastases. BSP expression was significantly increased in infiltrating ductal carcinoma compared with infiltrating lobular carcinoma (p = 0.0023). No correlation was found between immunoreactivity to BSP antibodies and estrogen receptor (ER) status, progesterone receptor (PR) status, or age. Our data suggest that BSP could help to identity which women will develop bone metastases and provide new bases for the understanding of the molecular mechanism(s) responsible for breast cancer cells osteotropism.
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PMID:Bone sialoprotein expression in primary human breast cancer is associated with bone metastases development. 915 81

The skeleton is the most common organ to be affected by metastatic cancer, and tumors arising from the breast, prostate, thyroid, lung, and kidney possess a special propensity to spread to bone. Breast carcinoma, the most prevalent malignancy, causes the greatest morbidity. Of great clinical importance is the observation that metastatic bone disease may remain confined to the skeleton. In these patients, the decline in quality of life and eventual death is due almost entirely to skeletal complications and their subsequent treatment. Bone pain is the most common complication of metastatic bone disease, resulting from structural damage, periosteal irritation, and nerve entrapment. Recent evidence suggests that pain caused by bone metastasis may also be related to the rate of bone resorption. Hypercalcemia occurs in 5-10% of all patients with advanced cancer but is most common in patients with breast carcinoma, multiple myeloma, and squamous carcinomas of the lung and other primary sites. Pathologic fractures are a relatively late complication of bone involvement. The clinical courses of breast and prostate carcinoma are relatively long, with a median survival of 2-3 years. For patients with breast carcinoma, good prognostic factors for survival after the development of bone metastases are good histologic grade, positive estrogen receptor status, bone disease at initial presentation, a long disease free interval, and increasing age. In addition, patients with disease that remains confined to the skeleton have a better prognosis than those with subsequent visceral involvement. For patients with prostate carcinoma, adverse prognostic features include poor performance status, involvement of the appendicular skeleton and visceral involvement, whereas for patients with multiple myeloma, the levels of serum beta2-microglobulin and lactate dehydrogenase and the immunologic phenotype are the most important factors. These prognostic factors may be useful in planning the rational use of bisphosphonates in the treatment of advanced cancer.
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PMID:Skeletal complications of malignancy. 936 26


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