1
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Drennan CN, Pauley JL, Christensen AM, Jacobs TW, Bragg AW, Porter JS, Bourque MS. Pharmacist Effect on Discharge Follow-Up Education in Pediatric Oncology Outpatient Clinics: A Quality Improvement Study. J Pediatr Pharmacol Ther 2023; 28:262-267. [PMID: 37303764 PMCID: PMC10249968 DOI: 10.5863/1551-6776-28.3.262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Accepted: 08/02/2022] [Indexed: 06/13/2023]
Abstract
OBJECTIVE We aimed to describe the effect of education provided by a clinical pharmacy specialist at a patient's follow-up appointment after discharge, and to assess caregiver satisfaction. METHODS A single-center, quality improvement study was conducted. A standardized data collection tool was created to characterize interventions made by clinical pharmacy specialists during an outpatient clinic appointment scheduled shortly after discharge. Pediatric patients with cancer who met the following criteria were included: 1) initial diagnosis without receiving chemotherapy, 2) first course of chemotherapy after initial diagnosis or relapsed disease, and 3) post-hematopoietic stem cell transplantation or cellular therapy. A survey was provided to families after the follow-up discharge appointment to assess the caregiver's satisfaction of the new process. RESULTS From January to May 2021, a total of 78 first-time discharge appointments were completed. The most common reason for follow-up was discharge after first course of chemotherapy (77%). The average duration of each appointment was 20 minutes (range, 5-65). The clinical pharmacy specialist made an intervention during 85% of appointments. The most common intervention made during the visit was reinforcement of medications (31%). Thirteen surveys were completed by caregivers; 100% of the caregivers reported the follow-up appointment was helpful. Additionally, they reported the most useful resource provided at discharge was the medication calendar (85%). CONCLUSIONS Investing clinical pharmacy specialist time with patients and caregiver after discharge appears to have a meaningful effect on patient care. Caregivers report this process is helpful in better understanding their child's medications.
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Affiliation(s)
- Chelsea N. Drennan
- Department of Pharmacy and Pharmaceutical Sciences (CND, JLP, AMC, TWJ, AWB, MSB), St. Jude Children's Research Hospital, Memphis, TN
| | - Jennifer L. Pauley
- Department of Pharmacy and Pharmaceutical Sciences (CND, JLP, AMC, TWJ, AWB, MSB), St. Jude Children's Research Hospital, Memphis, TN
| | - Anthony M. Christensen
- Department of Pharmacy and Pharmaceutical Sciences (CND, JLP, AMC, TWJ, AWB, MSB), St. Jude Children's Research Hospital, Memphis, TN
| | - Timothy W. Jacobs
- Department of Pharmacy and Pharmaceutical Sciences (CND, JLP, AMC, TWJ, AWB, MSB), St. Jude Children's Research Hospital, Memphis, TN
| | - Allison W. Bragg
- Department of Pharmacy and Pharmaceutical Sciences (CND, JLP, AMC, TWJ, AWB, MSB), St. Jude Children's Research Hospital, Memphis, TN
| | - Jerlym S. Porter
- Department of Psychology (JSP), St. Jude Children's Research Hospital, Memphis, TN
| | - Melissa S. Bourque
- Department of Pharmacy and Pharmaceutical Sciences (CND, JLP, AMC, TWJ, AWB, MSB), St. Jude Children's Research Hospital, Memphis, TN
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2
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McEneny-King A, Chelle P, Goggans MH, Barker PJ, Jacobs TW, Neufeld EJ, Reiss UM, Panetta JC. Limited sampling strategies for accurate determination of extended half-life factor VIII pharmacokinetics in severe haemophilia A patients. Haemophilia 2021; 27:408-416. [PMID: 33742733 DOI: 10.1111/hae.14288] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 02/13/2021] [Accepted: 02/15/2021] [Indexed: 01/19/2023]
Abstract
BACKGROUND Extended half-life (EHL) factor VIII (FVIII) products may decrease the burden of prophylactic treatment in haemophilia A by reducing infusion frequency. However, these products still exhibit wide inter-patient variability and benefit from pharmacokinetic (PK) tailoring. OBJECTIVE Identify limited sampling strategies for rFVIIIFc, an EHL FVIII product, that produce accurate estimates of PK parameters and relevant troughs. METHODS We performed a limited sampling analysis on simulated populations of adults, adolescents, and children based on published population PK data. Sampling strategies were evaluated by comparing the error in estimates of half-life, clearance, and trough levels, to a full 6-sample design. Furthermore, we assessed the impact of incorporating knowledge about prior doses, and the day of the PK study within the regimen. We also evaluated the potential inappropriate dose adjustment rate (IDAR) among the modelled sampling strategies. RESULTS Many sampling strategies, including several 2-sample designs, accurately predicted the PK and exposure measures (median absolute error <10%). When samples are only collected during a single visit (i.e., predose + peak), inclusion of prior dose information reduces median half-life error from >20% to ~5% for adults/adolescents. In this same scenario, appropriate scheduling of the PK study decreases likelihood of unmeasurable predose samples, reducing median error on the 72-h trough from 25% to <12% in the youngest population. CONCLUSIONS The PK of rFVIIIFc can be accurately estimated using only peak and trough samples, provided that knowledge of prior doses is incorporated and the PK study is planned on an appropriate day within the dosing regimen.
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Affiliation(s)
| | - Pierre Chelle
- School of Pharmacy, University of Waterloo, Kitchener, Ontario, Canada
| | - Margaret H Goggans
- Department of Pharmaceutical Sciences, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - Patricia J Barker
- Department of Pharmaceutical Sciences, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - Timothy W Jacobs
- Department of Pharmaceutical Sciences, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - Ellis J Neufeld
- Department of Hematology, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - Ulrike M Reiss
- Department of Hematology, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - John C Panetta
- Department of Pharmaceutical Sciences, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
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3
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Abstract
This article focuses on current issues relating to fibroepithelial lesions, predominantly those with cellular stroma, and covers key pathologic features, differential diagnosis, and pitfalls. Phyllodes tumors are emphasized, including the histologic categorization and prognostic features of these lesions. The management of fibroepithelial lesions on needle core biopsy is reviewed.
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Affiliation(s)
- Timothy W Jacobs
- Department of Pathology, Virginia Mason Medical Center, 1100 Ninth Avenue, Seattle, WA 98101, USA.
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4
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Harton AM, Wang HH, Schnitt SJ, Jacobs TW. p63 Immunocytochemistry improves accuracy of diagnosis with fine-needle aspiration of the breast. Am J Clin Pathol 2007; 128:80-5. [PMID: 17580273 DOI: 10.1309/rx1w80k68nrj0ptt] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
Abstract
Breast fine-needle aspiration (FNA) is highly sensitive and specific for detecting carcinoma under most circumstances. Immunostaining for the myoepithelial cell marker p63 has been shown to be useful to separate noninvasive from invasive breast lesions in histologic examination. Its usefulness for breast FNA specimens is less certain. We performed p63 immunostains on 17 clinical samples and 29 aspirates from excised surgical specimens. One Papanicolaou-stained ThinPrep slide (Cytyc, Marlborough, MA) from each case was scored as benign, atypical, "suspicious," or positive. Cytospin (Shandon, Pittsburgh, PA) slides stained with p63 antibody were scored as to the percentage of positive single cells and percentage of positive clusters. The staining pattern of p63 was significantly different (P < .0001) between malignant and benign lesions. Based on cytology alone, the sensitivity, specificity, and positive and negative predictive values were 88%, 90%, 83%, and 93%, respectively. The application of p63 staining to specimens with a less-than-definitive diagnosis (atypical and suspicious) improved the specificity and positive and negative predictive values to 97%, 94%, and 97%, respectively. When used in conjunction with morphologic examination, p63 immunostaining may be useful to categorize cases problematic by Papanicolaou staining.
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Affiliation(s)
- Anthony M Harton
- Department of Pathology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA 02215, USA
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5
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Abstract
We report the third case of a solid serous adenoma of the pancreas, a rare variant of tumor within the family of pancreatic serous cystic neoplasms. This asymptomatic tumor presented in a 66-year-old man during imaging for another problem. Computed tomography of the abdomen demonstrated a 3.5-cm hypervascular mass in the head of the pancreas. A pylorus preserving pancreaticoduodenectomy was performed. Histological examination demonstrated a neoplasm identical to a serous cystadenoma-glycogen-rich cuboidal or polygonal cells with finely granulated eosinophilic or clear cytoplasm. More often, the neoplasm contained solid areas and tubules but no microcysts. Periodic acid Schiff's-glycogen staining was positive in some cells, turning negative after diastase was applied. Immunostaining was positive for CK7, CK8, neuron specific enolase, and MUC6. The microscopic findings of a solid neoplasm of cuboidal cells rich in glycogen and the immunostaining listed associate this tumor with the previously 2 reported cases of solid serous adenoma. All 3 reported cases thus far have proven to be benign lesions by pathological examination. Because clinical follow-up is reported only in the present case, caution should be exercised in declaring the solid serous adenoma of the pancreas as a benign lesion.
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Affiliation(s)
- Stephen A Reese
- Department of General Surgery, Virginia Mason Medical Center, Seattle, WA 98111, USA
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6
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Jacobs TW, Chen YY, Guinee DG, Holden JA, Cha I, Bauermeister DE, Hashimoto B, Wolverton D, Hartzog G. Fibroepithelial lesions with cellular stroma on breast core needle biopsy: are there predictors of outcome on surgical excision? Am J Clin Pathol 2005; 124:342-54. [PMID: 16191502 DOI: 10.1309/5n2c-4n5x-cb8x-w8jl] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/29/2022] Open
Abstract
Fibroepithelial lesions with cellular stroma (FELCS) in breast core needle biopsy (CNB) specimens may result in either fibroadenoma or phyllodes tumor at excision. We evaluated histologic features, proliferation indices (by Ki-67 and topoisomerase II a immunostaining) and p53 expression in 29 cases of FELCS in CNB specimens and correlated these with excision findings in a blinded manner. On excision, 16 patients had fibroadenomas and 12 had phyllodes tumors. All CNB specimens with mildly increased stromal cellularity were fibroadenomas on excision (n=4), and all with markedly cellular stroma were phyllodes tumors (n=4). Among CNB specimens with moderate cellularity (12 fibroadenomas and 8 phyllodes tumors), only stromal mitoses were discriminatory histologically. Stromal proliferation indices were significantly higher in CNB that were phyllodes tumors vs fibroadenomas. Assessment of stromal cellularity, mitoses, and proliferation indices might help determine the probability of phyllodes tumor occurring and guide management of these cases.
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Affiliation(s)
- Timothy W Jacobs
- Department of Pathology, Virginia Mason Medical Center, Seattle, WA 98101, USA
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7
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Jacobs TW, Chen YY, Guinee DG, Holden JA, Cha I, Bauermeister DE, Hashimoto B, Wolverton D, Hartzog G. Fibroepithelial Lesions With Cellular Stroma on Breast Core Needle Biopsy. Am J Clin Pathol 2005. [DOI: 10.1309/5n2c4n5xcb8xw8jl] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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8
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Webb PM, Byrne C, Schnitt SJ, Connolly JL, Jacobs TW, Baer HJ, Willett WC, Colditz GA. A Prospective Study of Diet and Benign Breast Disease. Cancer Epidemiol Biomarkers Prev 2004. [DOI: 10.1158/1055-9965.1106.13.7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Abstract
Much attention has been paid to the relation between diet and breast cancer risk. Because benign breast disease (BBD), particularly atypical hyperplasia (AH), is a marker of increased breast cancer risk, studies of diet and BBD may provide evidence about the effect of diet at an early stage in the process of breast carcinogenesis. We evaluated the relationship between fat, fiber, antioxidant and caffeine intake and incidence of non-proliferative BBD, proliferative BBD without atypia and AH in the Nurses' Health Study II. We calculated rate ratios (RR) and 95% confidence intervals (95% CI) for each quartile of energy-adjusted intake using the lowest quartile as reference. There was no increase in risk of BBD with increasing fat intake, rather increasing vegetable fat was associated with a significant reduction in the rate of proliferative BBD without atypia. There was no significant association between any type of BBD and micronutrient intake. High caffeine consumption was positively associated (RR = 2.46, 95% CI 1.11-5.49 for the highest quartile), and use of multivitamin supplements inversely associated (RR = 0.57, 95% CI 0.33-0.98) with risk of AH although these analyses were based on small numbers. These data do not support the hypothesis that higher fat consumption increases risk of BBD, with or without atypia, and also provide little evidence for a major role of antioxidants in the development of breast disease. They do, however, raise the possibility that high caffeine intake may increase, and use of vitamin supplements may decrease risk of developing AH.
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Affiliation(s)
- Penelope M. Webb
- 1Queensland Institute of Medical Research, PO Royal Brisbane Hospital, Brisbane, Queensland, Australia
- 2Channing Laboratory, Department of Medicine, Harvard Medical School and Brigham and Women's Hospital, Boston, Massachusetts
| | - Celia Byrne
- 2Channing Laboratory, Department of Medicine, Harvard Medical School and Brigham and Women's Hospital, Boston, Massachusetts
| | - Stuart J. Schnitt
- 3Department of Pathology, Harvard Medical School and Beth-Israel Deaconess Medical Center, Boston, Massachusetts; and
| | - James L. Connolly
- 3Department of Pathology, Harvard Medical School and Beth-Israel Deaconess Medical Center, Boston, Massachusetts; and
| | - Timothy W. Jacobs
- 3Department of Pathology, Harvard Medical School and Beth-Israel Deaconess Medical Center, Boston, Massachusetts; and
| | | | - Walter C. Willett
- 2Channing Laboratory, Department of Medicine, Harvard Medical School and Brigham and Women's Hospital, Boston, Massachusetts
- 4Epidemiology and Departments of
- 5Nutrition, Harvard School of Public Health, Boston, Massachusetts
| | - Graham A. Colditz
- 2Channing Laboratory, Department of Medicine, Harvard Medical School and Brigham and Women's Hospital, Boston, Massachusetts
- 4Epidemiology and Departments of
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9
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Webb PM, Byrne C, Schnitt SJ, Connolly JL, Jacobs TW, Baer HJ, Willett WC, Colditz GA. A prospective study of diet and benign breast disease. Cancer Epidemiol Biomarkers Prev 2004; 13:1106-13. [PMID: 15247120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/30/2023] Open
Abstract
Much attention has been paid to the relation between diet and breast cancer risk. Because benign breast disease (BBD), particularly atypical hyperplasia (AH), is a marker of increased breast cancer risk, studies of diet and BBD may provide evidence about the effect of diet at an early stage in the process of breast carcinogenesis. We evaluated the relationship between fat, fiber, antioxidant and caffeine intake and incidence of non-proliferative BBD, proliferative BBD without atypia and AH in the Nurses' Health Study II. We calculated rate ratios (RR) and 95% confidence intervals (95% CI) for each quartile of energy-adjusted intake using the lowest quartile as reference. There was no increase in risk of BBD with increasing fat intake, rather increasing vegetable fat was associated with a significant reduction in the rate of proliferative BBD without atypia. There was no significant association between any type of BBD and micronutrient intake. High caffeine consumption was positively associated (RR = 2.46, 95% CI 1.11-5.49 for the highest quartile), and use of multivitamin supplements inversely associated (RR = 0.57, 95% CI 0.33-0.98) with risk of AH although these analyses were based on small numbers. These data do not support the hypothesis that higher fat consumption increases risk of BBD, with or without atypia, and also provide little evidence for a major role of antioxidants in the development of breast disease. They do, however, raise the possibility that high caffeine intake may increase, and use of vitamin supplements may decrease risk of developing AH.
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Affiliation(s)
- Penelope M Webb
- Queensland Institute of Medical Research, PO Royal Brisbane Hospital, Brisbane, Australia
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10
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Pomerening JR, Valente L, Kinzy TG, Jacobs TW. Mutation of a conserved CDK site converts a metazoan Elongation Factor 1Bbeta subunit into a replacement for yeast eEF1Balpha. Mol Genet Genomics 2003; 269:776-88. [PMID: 12898219 DOI: 10.1007/s00438-003-0888-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2003] [Accepted: 06/13/2003] [Indexed: 10/26/2022]
Abstract
Elongation factor subunit eEF1Bbeta (formerly EF-1beta in plants and EF-1delta in animals) was identified and cloned in a screen for proteins from pea that interact with a cyclin-dependent kinase (CDK). CDKs are enzymes that regulate progression through meiotic and mitotic cell cycles in eukaryotes. eEF1Bbeta and the related protein eEF1Balpha (formerly EF-1beta' in plants and EF-1beta in animals and fungi) can catalyze GTP/GDP exchange on the G-protein eEF1A (formerly EF-1alpha in plants, animals and fungi) during the elongation phase of protein synthesis in eukaryotes. Recombinant Cdc2 and its native homologues from pea extracts associated both in vitro and in vivo with eEF1Bbeta. A Cdc2-cyclin B complex phosphorylated recombinant plant eEF1Bbetas, but not eEF1Balpha. These interactions between CDK and eEF1Bbeta prompted investigations into the in vivo consequences of this relationship. Expression of cDNAs encoding rice or pea eEF1Bbeta subunits failed to complement a Saccharomyces cerevisiae mutant deleted for the eEF1Balpha gene, as was previously observed for the human eEF1Bbeta. However, replacement of Thr91, the sole consensus CDK phosphorylation site in pea eEF1Bbeta, with alanine allowed the pea protein to substitute for eEF1Balpha function in vivo. In addition, this rescued strain was severely cold sensitive, and more sensitive to translational inhibitors than wild-type yeast. Taken together, these results suggest a physiological connection between the cyclin-dependent class of kinases and a translational elongation factor in mitotic cells, and provide the first in vivo evidence that an altered form of eEF1Bbeta can serve as the guanine nucleotide exchange factor for eEF1A.
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Affiliation(s)
- J R Pomerening
- Department of Molecular Pharmacology, Stanford University School of Medicine, 269 West Campus Drive, CCSR 3160, Stanford, CA 94305-5174, USA.
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11
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Byrne C, Webb PM, Jacobs TW, Peiro G, Schnitt SJ, Connolly JL, Willett WC, Colditz GA. Alcohol consumption and incidence of benign breast disease. Cancer Epidemiol Biomarkers Prev 2002; 11:1369-74. [PMID: 12433713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/27/2023] Open
Abstract
We evaluated whether moderate alcohol consumption is associated with increased risk of developing benign breast disease (BBD), a potential "precursor" or marker for breast cancer development. This study evaluated associations between reported alcohol consumption and BBD diagnosis among 75,826 women in the Nurses' Health Study II. Between 1989 and 1997, 16,035 women reported a first diagnosis of BBD (317/10,000 person-years), of which 2,999 diagnoses were confirmed by tissue biopsy (59/10,000 person-years). Of the pathology specimens reviewed, 532 were nonproliferative benign breast conditions, and 932 were proliferative conditions. Person-time models provided estimates of the rate ratio (RR) and 95% confidence interval (CI). Reported recent adult consumption of alcohol was not associated with increased BBD incidence. Compared with women who did not drink alcohol, the age- and body mass index (BMI)-adjusted RRs for any reported BBD were 0.98 (95% CI, 0.95-1.02) for those who consumed <5 g/day, 0.93 (95% CI, 0.89-0.98) for those who consumed 5-14.9 g/day, and 0.90 (95% CI, 0.83-0.98) for those who consumed >or=15 g/day. The adjusted RRs for biopsy confirmed BBD and any proliferative benign condition were similiar. However, reported alcohol consumption of >or=15 g/day between ages 18 and 22 years was associated with higher rates of biopsy-confirmed BBD (age- and body mass index-adjusted RR = 1.14; 95% CI, 1.00-1.30), nonproliferative BBD (RR = 1.46; 95% CI, 1.09-1.96), and any proliferative BBD (RR = 1.33; 95% CI, 1.05-1.69), but not atypical hyperplasia. In this study, recent alcohol consumption was associated with slightly lower rates of reported BBD. However, greater alcohol consumption earlier in life (ages 18-22 years) was associated with higher proliferative BBD rates, suggesting that timing of exposure may be relevant to disease incidence.
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Affiliation(s)
- Celia Byrne
- Channing Laboratory, Brigham and Women's Hospital, Harvard Medical School Boston, Massachusetts 02115, USA.
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12
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Abstract
Large core needle biopsies using stereotactic mammography or ultrasound guidance are now commonly performed as the initial diagnostic approach to nonpalpable breast lesions. Although the subsequent management of patients with invasive cancer, ductal carcinoma in situ, and most benign lesions diagnosed on core needle biopsy specimens is straightforward, certain nonmalignant lesions pose dilemmas with regard to the most appropriate clinical management following core needle biopsy. The purpose of this article is to review the available data regarding several nonmalignant breast lesions, which when encountered in core needle biopsy specimens raise repeated management questions. These include atypical ductal hyperplasia, lobular neoplasia (atypical lobular hyperplasia and lobular carcinoma in situ), papillary lesions, radial scars, fibroepithelial lesions, mucocele-like lesions, and columnar cell lesions.
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Affiliation(s)
- Timothy W Jacobs
- Department of Pathology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts 02215, USA
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13
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Jacobs TW, Schnitt SJ, Tan X, Brown LF. Radial scars of the breast and breast carcinomas have similar alterations in expression of factors involved in vascular stroma formation. Hum Pathol 2002; 33:29-38. [PMID: 11823971 DOI: 10.1053/hupa.2002.30190] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
We recently reported that radial scars are an independent histologic risk factor for breast cancer. The reason for this association is not known. Given the importance of stromal-epithelial interactions in the pathogenesis of breast cancer, we studied radial scars for the expression of a number of factors known to be involved in the formation of vascular stroma in breast cancer. In situ hybridization was performed on formalin-fixed paraffin sections using (35)S-labeled riboprobes for collagen type 1, total fibronectin, extra domain A (ED-A)+ fibronectin, thrombospondin 1, vascular permeability factor (VPF)/vascular endothelial growth factor (VEGF), and one of its endothelial receptors, kinase insert domain-containing receptor (KDR) (vascular endothelial growth factor receptor [VEGFR-2]). Expression levels in radial scars (9 cases) were compared with those in normal breast tissue (15 cases) and infiltrating ductal breast carcinoma (4 cases). Factor VIII-related antigen immunostaining was used to define the distribution of microvessels in radial scars, carcinoma, and normal breast tissue. Compared with normal breast tissue, the radial scars showed focally increased numbers of blood vessels and focally increased expression of messenger RNA (mRNA) for collagen type 1, total fibronectin, ED-A+ fibronectin, thrombospondin 1, VPF/VEGF, and KDR. This pattern of mRNA overexpression was similar to that seen in the 4 invasive cancers. We conclude that there are similarities between radial scars and invasive breast cancers with regard to the level of mRNA expression for several factors involved in the formation of vascular stroma. These results suggest that a similar disturbance in stromal-epithelial interactions is present in both lesions.
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MESH Headings
- Adult
- Aged
- Breast/anatomy & histology
- Breast/blood supply
- Breast/metabolism
- Breast/pathology
- Breast Neoplasms/blood supply
- Breast Neoplasms/metabolism
- Breast Neoplasms/pathology
- Carcinoma, Intraductal, Noninfiltrating/blood supply
- Carcinoma, Intraductal, Noninfiltrating/metabolism
- Carcinoma, Intraductal, Noninfiltrating/secondary
- Cicatrix/metabolism
- Cicatrix/pathology
- Collagen Type I/genetics
- Collagen Type I/metabolism
- Ectodysplasins
- Endothelial Growth Factors/genetics
- Endothelial Growth Factors/metabolism
- Female
- Fibronectins/genetics
- Fibronectins/metabolism
- Humans
- In Situ Hybridization
- Lymphokines/genetics
- Lymphokines/metabolism
- Membrane Proteins/genetics
- Membrane Proteins/metabolism
- Microcirculation/anatomy & histology
- Microcirculation/metabolism
- Microcirculation/pathology
- Middle Aged
- Neovascularization, Pathologic/metabolism
- Neovascularization, Pathologic/pathology
- RNA/metabolism
- RNA, Neoplasm/analysis
- Receptor Protein-Tyrosine Kinases/genetics
- Receptor Protein-Tyrosine Kinases/metabolism
- Receptors, Growth Factor/genetics
- Receptors, Growth Factor/metabolism
- Receptors, Vascular Endothelial Growth Factor
- Stromal Cells/metabolism
- Stromal Cells/pathology
- Thrombospondin 1/genetics
- Thrombospondin 1/metabolism
- Vascular Endothelial Growth Factor A
- Vascular Endothelial Growth Factors
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Affiliation(s)
- Timothy W Jacobs
- Department of Pathology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA 02215, USA
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14
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Affiliation(s)
- S J Schnitt
- Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA
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15
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Lehr HA, Jacobs TW, Yaziji H, Schnitt SJ, Gown AM. Quantitative evaluation of HER-2/neu status in breast cancer by fluorescence in situ hybridization and by immunohistochemistry with image analysis. Am J Clin Pathol 2001; 115:814-22. [PMID: 11392876 DOI: 10.1309/aj84-50ak-1x1b-1q4c] [Citation(s) in RCA: 62] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
We correlated quantitative results obtained in 40 invasive breast cancer cases for HER-2 gene amplification by fluorescence in situ hybridization with protein expression by immunohistochemical studies with computer-assisted image analysis. Fluorescence in situ hybridization (FISH) results were quantified as the mean number of fluorescent signals per nucleus, and immunohistochemical slides were read by semiquantitatively assessing membranous immunostaining intensity in tumor cells vs nonneoplastic breast tissue or quantitatively evaluated by image analysis. We found high correlation between immunohistochemical results by semiquantitative scoring and by image analysis. FISH results correlated with immunohistochemical results moderately when the staining intensity of only tumor cells was assessed and significantly better when the difference in staining intensity between tumor cells and nonneoplastic breast tissue was assessed. The correlation with FISH results was further improved when immunohistochemical study was combined with heat-induced epitope retrieval (HIER). Although FISH and immunohistochemical studies assess different aspects of the HER-2/neu gene (amplification vs overexpression), we found good correlation between the diagnostic techniques. The correlation was best when immunohistochemical studies were combined with HIER and assessed as the difference between tumor cells and nonneoplastic breast tissue.
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Affiliation(s)
- H A Lehr
- Institute of Pathology, University of Mainz, Medical Center, Langenbeckstrasse 1, D-55101 Mainz, Germany
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16
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Abstract
To compare pathologic features of the cancers arising after different types of benign breast disease (BBD), we reviewed the invasive breast cancer slides of 169 women with a previous benign biopsy result. Lesions were categorized previously as nonproliferative, proliferative without atypia, or atypical hyperplasia. Pathologic features of the cancers were evaluated without knowledge of the previous BBD category. Estrogen and progesterone receptor immunohistochemistry was performed on available tissue blocks. The median times between a benign result and cancer were 100, 124, and 92 months for women with nonproliferative lesions, proliferative lesions without atypia, and atypical hyperplasia, respectively. Cancers in the 3 groups did not differ significantly in tumor size, axillary lymph node status, or histologic grade, and there was no significant difference in the distribution of histologic types of breast cancer. Lymphatic vessel invasion, extensive intraductal component, and hormone receptor status did not differ among BBD categories. The pathologic features of breast cancers that develop in women with a previous benign biopsy result do not vary according to the histologic category of the previous BBD.
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Affiliation(s)
- T W Jacobs
- Department of Pathology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA
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Abstract
Most breast carcinomas in situ (CIS) are easily categorized as ductal (DCIS) or lobular (LCIS). However, some CIS have indeterminate histologic features (CIS-IF). Prior studies have shown that E-cadherin protein expression is lost in lobular but not ductal carcinomas. Therefore, evaluation of examples of CIS-IF for E-cadherin expression by immunohistochemistry might be useful in helping to define their nature. To address this, we studied histologic features and E-cadherin expression by immunohistochemistry in 89 cases of breast CIS (28 LCIS, 33 DCIS, 28 CIS-IF). CIS-IF cases were divided into three groups based on histology: Group 1 cases had all the cytologic and architectural features typical of LCIS but showed areas of comedo-type necrosis (n = 6). Group 2 cases were CIS lesions characterized by small, uniform neoplastic cells either growing in a solid pattern with focal microacinar-like structures but with cellular dyshesion, or growing in a cohesive mosaic pattern but with occasional intracytoplasmic vacuoles (n = 17). Group 3 cases showed marked cellular pleomorphism and nuclear atypia but had the dyshesive growth pattern characteristic of LCIS (n = 5). E-cadherin staining was scored as negative, positive, or mixed (mixture of negative and positive tumor cells). All 28 cases of LCIS were E-cadherin negative, and all 33 DCIS cases were E-cadherin positive by immunohistochemistry. All cases from CIS-IF group 1 and group 3 were negative for E-cadherin, suggesting a closer kinship to LCIS than to DCIS. In contrast, CIS-IF group 2 cases were heterogeneous with respect to E-cadherin staining. Six (35.3%) cases were E-cadherin negative (more akin to LCIS), 5 (29.4%) cases were E-cadherin positive (akin to DCIS), and 6 (35.3%) cases had both E-cadherin-positive and E-cadherin-negative tumor cells, suggesting a mixed DCIS/LCIS phenotype. Our findings suggest that E-cadherin immunostaining is of value in helping to characterize breast carcinomas in situ with indeterminate features. However, validation of these observations will require clinical outcome studies.
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Affiliation(s)
- T W Jacobs
- Department of Pathology, Beth Israel Deaconess Medical Center, and Harvard Medical School, Boston, Massachusetts 02215, USA
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18
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Jacobs TW, Gown AM, Yaziji H, Barnes MJ, Schnitt SJ. HER-2/neu protein expression in breast cancer evaluated by immunohistochemistry. A study of interlaboratory agreement. Am J Clin Pathol 2000; 113:251-8. [PMID: 10664627 DOI: 10.1309/980m-e24r-v19k-595d] [Citation(s) in RCA: 77] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
Abstract
Immunohistochemistry (IHC) is used commonly for evaluating HER-2/neu protein expression in breast cancer. Given the potential clinical importance of HER-2/neu status in patient management, interlaboratory variability in HER-2/neu IHC results in a matter of legitimate concern. We compared the results from 2 laboratories for HER-2/neu determined by IHC on paraffin sections of the same 100 consecutive invasive breast cancers. Both laboratories used the same primary antibody; however, different methods for heat-induced epitope retrieval (microwave or steam) and immunostaining (automated equipment from different manufacturers) and different scoring systems (positive-negative and 0-4+) were used. Slides were read in a blinded fashion and the results from the 2 laboratories were compared. Of the 93 cases evaluable in both laboratories, 24% were scored as HER-2/neu-positive at 1 laboratory, and 23% were scored as positive at the other. Complete concordance in categorization of HER-2/neu status between the 2 laboratories was achieved in 90 of 93 cases. Excellent interlaboratory agreement for HER-2/neu IHC was attained using the same primary antibody to HER-2/neu, even without standardization of assay method or scoring criteria. However, standardization of these parameters remains an important objective to optimize interlaboratory agreement.
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Affiliation(s)
- T W Jacobs
- Department of Pathology, Beth Israel Deaconess Medical Center, Boston, MA 02215, USA
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19
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Jacobs TW, Gown AM, Yaziji H, Barnes MJ, Schnitt SJ. Comparison of fluorescence in situ hybridization and immunohistochemistry for the evaluation of HER-2/neu in breast cancer. J Clin Oncol 1999; 17:1974-82. [PMID: 10561247 DOI: 10.1200/jco.1999.17.7.1974] [Citation(s) in RCA: 211] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
PURPOSE To compare fluorescence in situ hybridization (FISH) and immunohistochemistry (IHC) in the determination of HER-2/neu status of breast cancers. MATERIALS AND METHODS FISH and IHC for HER-2/neu were performed on formalin-fixed paraffin sections of 100 consecutive invasive breast cancers. FISH was performed at Beth Israel Deaconess Medical Center, Boston, MA, using the Oncor/Ventana INFORM kit (Ventana Medical Systems, Tucson, AZ; formerly sold by Oncor, Inc, Gaithersburg, MD) in a laboratory certified as proficient in this procedure. IHC was performed at PhenoPath Laboratories, Seattle, WA, using a polyclonal antibody to the HER-2/neu protein. FISH and IHC were analyzed in a blinded fashion, and the results were then compared. Procedure and interpretation times and reagent costs for FISH and IHC were also compared. RESULTS HER-2/neu was amplified by FISH in 26% of cases, and 23% were HER-2/neu-positive by IHC. FISH and IHC were both assessable in 90 cases. Concordance between FISH and IHC results was seen in 82 of these cases (91%, P <.001). The FISH procedure required more technologist time and more interpretation time per case for the pathologist than IHC. Reagent costs were substantially higher for FISH than for IHC. CONCLUSION There is a high level of correlation between FISH and IHC in the evaluation of HER-2/neu status of breast cancers using formalin-fixed paraffin-embedded specimens. Although the choice of which assay to use should be left for individual laboratories to make based on technical and economic considerations, our results may make it difficult to justify the routine use of FISH for determination of HER-2/neu status in breast cancer.
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Affiliation(s)
- T W Jacobs
- Department of Pathology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA 02215, USA
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Jacobs TW, Gown AM, Yaziji H, Barnes MJ, Schnitt SJ. Specificity of HercepTest in determining HER-2/neu status of breast cancers using the United States Food and Drug Administration-approved scoring system. J Clin Oncol 1999; 17:1983-7. [PMID: 10561248 DOI: 10.1200/jco.1999.17.7.1983] [Citation(s) in RCA: 355] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
PURPOSE To evaluate the specificity of the HercepTest for Immunoenzymatic Staining (Dako Corp, Carpinteria, CA) for determining HER-2/neu protein expression in breast cancer. MATERIALS AND METHODS Forty-eight invasive breast cancers previously found to be HER-2/neu-negative by two different immunohistochemical (IHC) assays and not amplified for the HER-2/neu gene by fluorescence in situ hybridization were studied using the HercepTest kit. HercepTest was performed according to the manufacturer's guidelines, and the results were scored on a 0 to 3+ scale using the United States Food and Drug Administration (FDA)-approved grading system. In this system, cases scored as 2+ or 3+ are considered HER-2/neu-positive. RESULTS Among these 48 cases, the IHC score using the FDA-approved scoring system was 0 in four cases (8.3%), 1+ in 16 (33.3%), 2+ in 21 (43.8%), and 3+ in seven (14.6%). Therefore, 58.4% of these cases were categorized as HER-2/neu-positive, and the specificity of the HercepTest kit for HER-2/neu expression was 41.6%. However, with the use of a modified scoring system that took into account the level of staining of nonneoplastic epithelium, the specificity increased to 93.2%. CONCLUSION Our results indicate that the HercepTest kit, when used in accordance with the manufacturer's guidelines and the FDA-approved scoring system, results in a large proportion of breast cancers being categorized as positive for HER-2/neu protein expression and that many of these seem to be false-positives. Consideration of the level of staining of nonneoplastic epithelium resulted in improved specificity. The current FDA-approved scoring system for HercepTest results should be reevaluated before its widespread use in clinical practice.
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Affiliation(s)
- T W Jacobs
- Department of Pathology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA 02215, USA
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21
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Jacobs TW, Silverman JF, Schroeder B, Raza S, Baum JK, Schnitt SJ. Accuracy of touch imprint cytology of image-directed breast core needle biopsies. Acta Cytol 1999; 43:169-74. [PMID: 10097705 DOI: 10.1159/000330972] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
OBJECTIVE To evaluate the accuracy of touch imprint (TI) cytology of image-directed core needle biopsy (CNB) specimens of nonpalpable breast lesions. STUDY DESIGN Fifty-two consecutive CNBs from 44 patients were performed under mammographic or ultrasound guidance. Air- dried TIs of CNBs were stained with Diff-Quik. TI cellularity was considered adequate if six or more ductal cell groups were identified. CNBs and TIs were interpreted in a blinded fashion. RESULTS TI cellularity was adequate in 37/52 (71%) cases, including 17/20 carcinomas and 20/32 benign lesions. Among 17 carcinomas, TIs were positive in 12, suspicious in 4 and atypical in 1. One case of lactational change was suspicious on TI, and 5/8 fibroadenomas were atypical. No benign lesions were called "carcinoma" on cytology. When lesions categorized as "carcinoma" or "suspicious" were considered positive and those classified as "atypical" or "benign" were scored as negative, TI sensitivity and specificity were 94% and 95%, respectively. When the "atypical" cases were grouped with the positive cases, TI sensitivity was 100%, with 75% specificity. CONCLUSION With satisfactory cellularity, TIs of CNBs are highly accurate. When immediate evaluation of CNB specimens is important, TIs can potentially decrease the number of biopsy passes required and provide preliminary diagnoses.
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Affiliation(s)
- T W Jacobs
- Department of Pathology, Beth Israel Deaconess Medical Center, Boston, Massachusetts 02215, USA.
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22
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Abstract
BACKGROUND Radial scars are benign breast lesions of uncertain clinical significance. In particular, it is not known whether these lesions alter the risk of breast cancer in women with benign breast disease. We conducted a case-control study of women who had benign breast lesions with or without radial scars. METHODS We reviewed benign breast-biopsy specimens from 1396 women enrolled in the Nurses' Health Study, including 255 women in whom breast cancer subsequently developed and 1141 women without subsequent breast cancer (controls). The controls were matched to the women with subsequent breast cancer according to age and the year when the benign lesion was identified. The median follow-up after biopsy of the benign lesions was 12 years. RESULTS Radial scars were identified in biopsy specimens from 99 women (7.1 percent). Most biopsy specimens with radial scars had only one radial scar (60.6 percent), and they tended to be incidental microscopical findings (median size, 4.0 mm). The women with radial scars had a risk of breast cancer that was almost twice the risk of the women without scars, regardless of the histologic type of benign breast disease (relative risk, 1.8; 95 percent confidence interval, 1.1 to 2.9). Among women who had proliferative disease without atypia as compared with women who had nonproliferative disease, the relative risk of breast cancer was 3.0 (95 percent confidence interval, 1.7 to 5.5) for those with radial scars and 1.5 (95 percent confidence interval, 1.1 to 2.1) for those without radial scars. Among women with atypical hyperplasia as compared with women with nonproliferative disease, the relative risk of breast cancer was 5.8 (95 percent confidence interval, 2.7 to 12.7) for those with radial scars and 3.8 (95 percent confidence interval, 2.4 to 5.9) for those without radial scars. CONCLUSIONS Radial scars are an independent histologic risk factor for breast cancer.
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Affiliation(s)
- T W Jacobs
- Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA
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Jacobs TW, Siziopikou KP, Prioleau JE, Raza S, Baum JK, Hayes DF, Schnitt SJ. Do prognostic marker studies on core needle biopsy specimens of breast carcinoma accurately reflect the marker status of the tumor? Mod Pathol 1998; 11:259-64. [PMID: 9521472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Core needle biopsies (CNB) are often used for the diagnosis of breast lesions. In some breast cancer patients, e.g., those treated with preoperative chemotherapy, the CNB specimen might be the only pretreatment tissue sample available for studies of prognostic and predictive markers. Our purpose was to evaluate whether marker studies performed on CNB specimens accurately reflect the marker status of the tumor. Immunostaining for five commonly used prognostic and predictive markers was performed on both CNB and subsequent excision specimens from 56 consecutive patients who had a CNB with carcinoma followed by excision of the tumor. None of the patients received radiotherapy or chemotherapy between the CNB and the excision. Paraffin sections of the CNB and excision specimens were immunostained for bcl-2, estrogen receptor (ER), c-erbB-2, and p53. These markers were scored as positive or negative. Microvessel density (MVD) was scored as a continuous variable on sections immunostained for Factor VIII-related antigen by calculating the average number of microvessels in three 224x fields of highest tumor vascularity ("hot spots"). Immunostaining results for bcl-2, ER, c-erbB-2, and p53 on the CNB and the corresponding excision specimens were 100% concordant. Although there was significant correlation between MVD on the CNB specimens and the corresponding excisions (r = 0.507, P = 0.0002), the mean MVD on the CNB and corresponding excision specimens differed by more than 10% in 85.7% of cases, with differences ranging from 4.3 to 233.3%. MVD was higher in the CNB than in the excision specimens in 30 (61.2%) of 49 cases. In conclusion, in all of the cases studied, accurate results for the dichotomously scored markers bcl-2, ER, c-erbB-2, and p53 were obtained on CNB specimens. In contrast, in most cases, MVD, which was scored as a continuous variable, could not be reliably assessed on the CNB specimen.
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Affiliation(s)
- T W Jacobs
- Department of Pathology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts 02215, USA
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24
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Abstract
BACKGROUND We previously observed decreased p53 immunostaining over time in paraffin-embedded sections of ductal carcinoma in situ of the breast of women; these sections had been stored on slides at room temperature. This observation suggests that slide storage adversely affects p53-immuno-staining intensity and could result in spurious negative staining for p53 in patient samples. PURPOSE The goals of this study were to determine the time course and factors influencing loss of p53 immunoreactivity and to investigate whether a similar loss of reactivity occurs with other antigens commonly used to study breast cancer. METHODS Serial sections cut from 12 formalin-fixed, paraffin-embedded, p53-positive invasive ductal carcinomas of the breast were stored on slides at room temperature or at 4 degrees C, with or without an additional paraffin coating, for 2, 4, 8, or 12 weeks. For each case, freshly cut slides from the same block (day 0) and stored slides were simultaneously stained for p53 by use of an automated immunostainer. Slides cut from formalin-fixed, paraffin-embedded breast carcinomas and stored for 12 weeks were also stained for factor VIII-related antigen (n = 12), estrogen receptor (ER) (n = 9), and Bcl-2 protein (n = 9). The staining intensity of all slides was assessed by visual microscopic examination and was also quantified by image analysis. Quantitative results were expressed as a percentage (mean +/- standard error) of the staining intensity on day 0. Data were analyzed by the Friedman Repeated Measures Analysis of Variance on Ranks, with statistical significance set at two-sided P < .05. RESULTS The intensity of p53 staining decreased over time in nine (75%) of the 12 cases studied. In three (or 25% of all cases studied) of the nine cases that showed decreased p53 staining, slides stored for 12 weeks were scored as p53 negative. Antigen loss on slides stored at 4 degrees C was significantly less than that on slides stored at room temperature at all time points (all P < .05). At 12 weeks, the average staining intensity of slides stored at 4 degrees C was 33.2% +/- 9% of that on day 0 compared with 8.4% +/- 3% of that on day 0 for slides stored at room temperature (P < .001). Paraffin coating of the sections did not significantly diminish antigen loss at either room temperature or 4 degrees C, except for slides stored at room temperature for 12 weeks. The intensity of factor VIII staining decreased in nine of 12 cases (average staining intensity, 37.3% +/- 6% of that on day 0 at 12 weeks; P = .0001). The intensity of ER and Bcl-2 staining decreased in all nine cases studied at 12 weeks (average staining intensity, 14.0% +/- 6% and 21.0% +/- 4% of that on day 0, respectively; P = .0001 for each). CONCLUSIONS AND IMPLICATIONS Slide storage, particularly at room temperature, results in substantial loss of p53 reactivity, with some p53-positive cases becoming p53 negative after 12 weeks of storage. Substantial loss of immunoreactivity for factor VIII, ER, and Bcl-2 occurs on slides stored at room temperature for 12 weeks. Storage of unstained slides for up to 12 weeks may lead to false-negative immunostaining for p53 and other antigens.
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Affiliation(s)
- T W Jacobs
- Department of Pathology, Beth Israel Hospital, Boston, MA 02215, USA
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25
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Abstract
PURPOSE The presence of estrogen receptor (ER) and its therapeutic significance in ovarian borderline tumors (OBT) have not been established. We recently observed a response to tamoxifen therapy given empirically to a patient with unresectable, recurrent serous borderline tumor (SBT). In view of this observation the present study was undertaken to assess ER expression in 51 cases of OBT. MATERIALS AND METHODS ER expression was determined retrospectively, using an immunohistochemical method on formalin-fixed, paraffin-embedded specimens, from 35 cases of SBTs, 6 cases of mucinous mullerian (MMBT), and 10 cases of mucinous intestinal borderline tumors (MIBT). ER was considered positive if > 5% of tumor epithelial cell nuclei were immunostained. Both SBTs and mucinous borderline tumors (MBTs) were included to determine the influence of histologic type on ER expression. RESULTS The patients ranged in age from 25 to 77 years (median 43 years for SBTs, 36 years for MMBTs, and 37 years for MIBTs). The stage distribution for the SBTs was stage I in 27 patients (77%), stage II in 4 patients (11.5%), and stage III in 4 patients (11.5%). All patients with MBTs were stage I. ER expression was observed in the majority of cases and correlated with histologic type: 94% (33/35) of SBTs and 100% (6/6) of MMBTs were ER positive compared to 0% (0/10) of MIBTs (P < 0.01). In the SBT category the presence of ER did not correlate significantly with stage or age. In addition, ER was positive in all four SBT implants (including one involved lymph node) and two recurrent SBTs analyzed. CONCLUSION ER expression is a common feature of SBT and MMBT, but not MIBT. The relevance of ER expression in the pathogenesis and treatment of OBTs requires further investigation.
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Affiliation(s)
- G M Abu-Jawdeh
- Department of Pathology, Beth Israel Hospital, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
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Mann GN, Jacobs TW, Buchinsky FJ, Armstrong EC, Li M, Ke HZ, Ma YF, Jee WS, Epstein S. Interferon-gamma causes loss of bone volume in vivo and fails to ameliorate cyclosporin A-induced osteopenia. Endocrinology 1994; 135:1077-83. [PMID: 8070349 DOI: 10.1210/endo.135.3.8070349] [Citation(s) in RCA: 54] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Interferon-gamma (IFN gamma) in vitro inhibits both bone resorption and bone formation, resulting in a net decrease in bone turnover. In vivo administration of cyclosporin A (CsA) produces accelerated bone remodeling with resultant bone loss. The aim of this study was to investigate whether administration of IFN gamma to rats would favorably modify the high turnover osteopenia caused by CsA. Thirty-six male Sprague-Dawley rats were randomized into 4 equal groups to receive either CsA (15 mg/kg.day) or vehicle by gavage and IFN gamma (10(6) IU/kg.day) or vehicle by ip injection for 8 days. Group 1 received CsA vehicle plus IFN gamma vehicle; group 2 received CsA plus IFN gamma vehicle; group 3 received CsA vehicle plus IFN-gamma; group 4 received CsA plus IFN gamma. Blood was sampled on days 0, 4, and 8 for measurement of ionized calcium (Ca2+), PTH, 1,25-dihydroxyvitamin D, and bone gla protein. Tibiae were removed on day 8 after double tetracycline labeling for histomorphometric analysis. Ca2+ and PTH levels were similar in all groups during the study period. Rats receiving CsA (groups 2 and 4) had elevated levels of 1,25-dihydroxyvitamin D and bone gla protein, whereas rats receiving IFN gamma alone (group 3) had no change in levels of these parameters. Bone histomorphometry revealed that treatment with CsA and/or IFN gamma (groups 2-4) caused an increase in bone resorption surface and a decrease in some parameters of bone formation, resulting in a net loss of bone volume. Thus, IFN gamma failed to influence the osteopenia caused by CsA and on its own had adverse effects on bone in vivo. These results demonstrate that immune-mediating agents have opposing actions in vitro as compared to in vivo.
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Affiliation(s)
- G N Mann
- Division of Endocrinology and Metabolism, Albert Einstein Medical Center, Philadelphia, Pennsylvania 19141
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27
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Dutlow CM, Rachman J, Jacobs TW, Millar RP. Prepubertal increases in gonadotropin-releasing hormone mRNA, gonadotropin-releasing hormone precursor, and subsequent maturation of precursor processing in male rats. J Clin Invest 1992; 90:2496-501. [PMID: 1469100 PMCID: PMC443407 DOI: 10.1172/jci116142] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Changes in gonadotropins and gonadal steroids during sexual maturation in rats and humans are well documented but little is known about hypothalamic gonadotropin-releasing hormone (GnRH) gene expression in relation to these events. This study measured hypothalamic proGnRH mRNA, GnRH precursor, and fully processed GnRH from postnatal day 8 until day 62 in male rats. GnRH precursor increased on day 22, reached a peak on day 24, declined on day 25 and returned to infantile levels by day 28. A secondary rise in precursor occurred at about day 40 when testosterone levels increased. GnRH mRNA increased on day 22 and remained elevated over the study period to day 26. GnRH increased on day 24 and remained at this level until a secondary rise occurred coincident with the testosterone rise at about day 40. The ratio of GnRH precursor to GnRH was high until day 24 and was low from day 26 onwards, reflecting a maturation of the processing enzyme system between these 2 d. Thus, an abrupt increase in GnRH gene transcription (mRNA) occurs early in juvenile male rats (day 22), well before the onset of puberty. An increase in GnRH precursor accompanies these early changes and this is followed by the maturation of processing as evidenced by the rapid decline of precursor and increase in GnRH from day 24 onward.
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Affiliation(s)
- C M Dutlow
- Department of Chemical Pathology, University of Cape Town, South Africa
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Katz IA, Jee WS, Joffe II, Stein B, Takizawa M, Jacobs TW, Setterberg R, Lin BY, Tang LY, Ke HZ. Prostaglandin E2 alleviates cyclosporin A-induced bone loss in the rat. J Bone Miner Res 1992; 7:1191-200. [PMID: 1456087 DOI: 10.1002/jbmr.5650071011] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Cyclosporine A (CsA) administered to the male and female rat produces high-turnover osteopenia. Prostaglandins have both bone-resorbing and bone-forming properties, but administration of prostaglandin E2 (PGE2) to the rat in vivo produces a net increase in cancellous bone. To investigate the effects of PGE2 on CsA-induced alteration in bone mass, 43 male Sprague-Dawley rats (9 weeks old) were administered 15 mg/kg of CsA by oral gavage and/or 6 mg/kg of PGE2 by subcutaneous injection daily for 21 days according to the following protocol: group A was an age-matched control; group B received CsA only; group C received PGE2 only; and group D received CsA and PGE2. Serum was assayed on days 0, 7, 14, and 21 for bone gla protein (BGP), PTH, and 1,25-dihydroxyvitamin D [1,25-(OH)2D]. A computerized image analysis system was used for bone histomorphometry of the proximal tibial metaphysis after double tetracycline labeling. Compared to control animals (group A), treatment with CsA alone (group B) and PGE2 alone (group C) significantly elevated BGP levels. Combination therapy (group D) resulted in BGP levels that were significantly higher on days 7 and 14 than with either agent alone. 1,25-(OH)2D was significantly elevated in the CsA group only (group B). Therapy with CsA alone (group B) resulted in a significant osteopenia. The concurrent administration of PGE2 with CsA (group D) alleviated the altered bone mass induced by CsA alone by adding a significant amount of additional bone. This report confirms and extends the current knowledge of the different effects of CsA and PGE2 on bone mineral metabolism and demonstrates that PGE2 can alleviate the deleterious effects of CsA on bone.
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Affiliation(s)
- I A Katz
- Division of Endocrinology and Metabolism, Albert Einstein Medical Center, Philadelphia, Pennsylvania
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Jacobs TW, Katz IA, Joffe II, Stein B, Takizawa M, Epstein S. The effect of FK 506, cyclosporine A, and cyclosporine G on serum 1,25-dihydroxyvitamin D levels. Transplant Proc 1991; 23:3188-9. [PMID: 1721403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- T W Jacobs
- Division of Endocrinology and Metabolism, Albert Einstein Medical Center, Philadelphia 19141
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Davis GT, Bedzyk WD, Voss EW, Jacobs TW. Single chain antibody (SCA) encoding genes: one-step construction and expression in eukaryotic cells. Nat Biotechnol 1991; 9:165-9. [PMID: 1367186 DOI: 10.1038/nbt0291-165] [Citation(s) in RCA: 46] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
We report the expression, in eukaryotic cells, of a gene encoding a single chain antibody (SCA) and a rapid method for the construction of such genes. A SCA directed against the aromatic dye fluorescein was synthesized from a gene constructed by means of the simultaneous use of four PCR primers and templates of both light and heavy chain immunoglobulin cDNAs in the form of either plasmid clones or reverse transcribed hybridoma RNA. Two of the primers were partially complementary to one another and encoded the polypeptide linker which joins the immunoglobulin light and heavy chain variable domains of the SCA polypeptide. A functional, hapten-binding product was synthesized from the gene thus constructed in both E. coli and the fission yeast, Schizosaccharomyces pombe. Our results demonstrate that gene constructs encoding single chain antigen binding proteins can be synthesized very rapidly with only limited sequence information about the pertinent light and heavy chain immunoglobulin genes, and, that neither murine codon usage bias, Thermus aquaticus DNA polymerase infidelity, nor the eukaryotic cellular environment preclude the synthesis of functional single chain antigen binding proteins in non-lymphatic, non-murine eukaryotic cells.
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Affiliation(s)
- G T Davis
- Department of Plant Biology, University of Illinois, Urbana 61801
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31
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Abstract
The mitotic cell cycle of yeast and animal cells is regulated by the cdc2 gene and its product, the p34 protein kinase, and by other components of the MPF or histone H1 kinase complex. We present evidence that cdc2, p34, and a histone H1 kinase also exist in higher plants. Protein extracts from 10 plant species surveyed display a 34-kDa component recognized by a monoclonal antibody directed against an evolutionarily conserved epitope of fission yeast p34. Nondenatured protein extracts of mitotic Pisum sativum (garden pea) tissues were fractionated by gel filtration, electrophoretically separated under denaturing conditions, and immunoblotted. p34 crossreactive material was apparent in both low and high molecular mass fractions, indicating that pea p34 occurs as both a monomer and as part of a high molecular mass complex. Histone H1 kinase activity was found predominantly in the higher molecular mass fractions, those to which the least phosphorylated form of pea p34 was confined. We also report the cloning of the pea homologue of cdc2 by polymerase chain reaction. DNA sequence analysis reveals perfect conservation of the hallmark "PSTAIR" sequence motif found in all cdc2 gene products analyzed to date.
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Affiliation(s)
- H S Feiler
- Department of Plant Biology, University of Illinois, Urbana 61801
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Dudley ME, Jacobs TW, Long SR. Microscopic studies of cell divisions induced in alfalfa roots by Rhizobium meliloti. Planta 1987; 171:289-301. [PMID: 24227428 DOI: 10.1007/bf00398674] [Citation(s) in RCA: 57] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/1986] [Accepted: 01/29/1987] [Indexed: 06/02/2023]
Abstract
We have used spot-inoculation and new cytological procedures to observe the earliest events stimulated in alfalfa (Medicago sativa L.) roots by Rhizobium meliloti. Roots were inoculated with 1-10 nl of concentrated bacteria, fixed in paraformaldehyde, and after embedding and sectioning stained with a combination of acridine orange and DAPI (4'-6-diamidino-2-phenylindole hydrochloride). Normal R. meliloti provoke cell dedifferentiation and mitosis in the inner cortex of the root within 21-24 h after inoculation. This activation of root cells spreads progressively, leading to nodule formation. In contrast, the R. meliloti nodA and nodC mutants do not stimulate any activation or mitosis. Thus the primary and earliest effect of Rhizobium nod gene action is plant cellular activation. A rapid, whole-mount visualization by lactic acid shows that the pattern of nodule form varies widely. Some R. meliloti strains were found to be capable of stimulating on alfalfa roots both normal nodules and a "hybrid" structure intermediate between a nodule and a lateral root.
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Affiliation(s)
- M E Dudley
- Department of Biological Sciences, Stanford University, 94305, Stanford, CA, USA
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Egelhoff TT, Fisher RF, Jacobs TW, Mulligan JT, Long SR. Nucleotide sequence of Rhizobium meliloti 1021 nodulation genes: nodD is read divergently from nodABC. DNA 1985; 4:241-8. [PMID: 4006668 DOI: 10.1089/dna.1985.4.241] [Citation(s) in RCA: 152] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Nodulation (nod) genes are required for Rhizobium meliloti to invade and stimulate nodule formation in its host, alfalfa. We have established the DNA sequence of nodD, nodA, and nodB, which are part of a gene cluster located 20 kb downstream of nifHDK on the R. meliloti pSym megaplasmid. The nodD open reading frame (308 amino acids) reads from proximal to nifHDK toward distal to nifHDK, divergently from nodA (196 aa) and nodB (217 aa). These two genes read from distal to nifHDK toward proximal, and are just upstream from the previously defined open reading frame for nodC. Fourteen Tn5 insertion sites have been sequenced in nodD, nodA, and nodB, revealing no major hotspots for insertion, but an overall preference for G/C bases at positions 1 and 9 of the 9-bp repeat.
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Hirsch AM, Drake D, Jacobs TW, Long SR. Nodules are induced on alfalfa roots by Agrobacterium tumefaciens and Rhizobium trifolii containing small segments of the Rhizobium meliloti nodulation region. J Bacteriol 1985; 161:223-30. [PMID: 3968028 PMCID: PMC214860 DOI: 10.1128/jb.161.1.223-230.1985] [Citation(s) in RCA: 46] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Regions of the Rhizobium meliloti nodulation genes from the symbiotic plasmid were transferred to Agrobacterium tumefaciens and Rhizobium trifolii by conjugation. The A. tumefaciens and R. trifolii transconjugants were unable to elicit curling of alfalfa root hairs, but were able to induce nodule development at a low frequency. These were judged to be genuine nodules on the basis of cytological and developmental criteria. Like genuine alfalfa nodules, the nodules were initiated from divisions of the inner root cortical cells. They developed a distally positioned meristem and several peripheral vascular bundles. An endodermis separated the inner tissues of the nodule from the surrounding cortex. No infection threads were found to penetrate either root hairs or the nodule cells. Bacteria were found only in intercellular spaces. Thus, alfalfa nodules induced by A. tumefaciens and R. trifolii transconjugants carrying small nodulation clones of R. meliloti were completely devoid of intracellular bacteria. When these strains were inoculated onto white clover roots, small nodule-like protrusions developed that, when examined cytologically, were found to more closely resemble roots than nodules. Although the meristem was broadened and lacked a root cap, the protrusions had a central vascular bundle and other rootlike features. Our results suggest that morphogenesis of alfalfa root nodules can be uncoupled from infection thread formation. The genes encoded in the 8.7-kilobase nodulation fragment are sufficient in A. tumefaciens or R. trifolii backgrounds for nodule morphogenesis.
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