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Featured researches published by W. Kleine.


Gynecologic Oncology | 1990

Estrogen and progesterone receptors in endometrial cancer and their prognostic relevance

W. Kleine; Thomas Maier; Hans Geyer; Albrecht Pfleiderer

Three hundred and nine malignant endometrial tumors were biochemically analyzed with respect to estrogen (ER) and progesterone (PR) receptors. Fifty-seven percent of endometrial carcinomas were ER and PR positive (greater than or equal to 50 fmole/mg of cytosol protein); 24% were negative for both receptors. Five sarcomas and 16 of 21 mixed mullerian tumors were receptor negative. Receptor status correlated with clinical stage and grade of histological differentiation, but not with myometrial invasion. Anamnestic data on patients showed no differences between those with receptor-negative and receptor-positive tumors. Five-year survival rate (stage I) and median survival time (stages II-IV, recurrences) for patients with ER+/PR+ and ER-/PR+ endometrial cancer were significantly better than for ER-/PR- and ER+/PR- patients. A multivariate analysis demonstrated progesterone receptor as a significant prognostic factor next to clinical stage. Estrogen receptor had no significant prognostic relevance. A retrospective analysis of gestagen treatment and progesterone receptor status confirms the importance of PR, possibly independent of hormonal treatment.


Gynecologic Oncology | 1989

Flow-cytometric prognostic factors for the survival of patients with ovarian carcinoma: A 5-year follow-up study

Manfred Volm; W. Kleine; Albrecht Pfleiderer

Fresh surgical specimens of 37 patients with previously untreated ovarian carcinomas were investigated by means of flow cytometry. The aim of the study was to look for cellular prognostic factors, in addition to the well-known clinical prognostic factors, of survival time for these patients. All patients underwent chemotherapy after surgery, and all patients had a minimum of 5 years of follow-up. Patients with diploid or near-diploid tumors (DNA index less than or equal to 1.25) survived significantly longer than those with aneuploid tumors (DNA index greater than 1.25, P = 0.02). Patients whose tumors showed a high proportion of SG2M phase cells (greater than 17%) or a low proportion of G0/G1 phase cells had shorter survival times than those with tumors with a low proportion of SG2M phase tumor cells (less than or equal to 17%, P = 0.01) or a high proportion of G0/G1 phase tumor cells. There is no significant relationship between cytometric data and stage. Different surgical procedures, cytostatic treatment, histological tumor type, and differentiation had no significant effects on the survival time of patients in this study. Thus, the data from this study demonstrate strong cytometric prognostic factors of the survival of patients with ovarian carcinomas.


Gynecologic Oncology | 1986

Prognostic significance of growth characteristics of xenotransplanted ovarian carcinomas into nude mice

W. Kleine

Human ovarian carcinomas (n = 215) were xenotransplanted into thymus-aplastic female nu/nu mice (NMRI). Growth of transplants was defined as take-off rate, growth rapidity, and feasibility of passages. In 204 cases these growth characteristics could be correlated with survival time of the individual tumor-donor patients. It could be shown that median survival time of patients without take-off was longer than with take-off. In the same way there was a significant difference between slow- and fast-growing transplants as well as in tumors with only one animal passage and with more than three passages. A life table analysis similarly shows that a good growth of a xenotransplanted human ovarian carcinoma into nude mice is correlated with a poor prognosis of individual patients. It could be demonstrated that at least in ovarian cancer growth of xenotransplants in nude mice indicates a prognostic significance.


Gynecologic Oncology | 1986

Growth of malignant gynecological tumors xenotransplanted into thymusaplastic nu nu mice

W. Kleine

Tissues of 447 malignant gynecological tumors were subcutaneously xenotransplanted into thymusaplastic nu/nu mice (NMRI). The average rate of takes was 75% with a range from 53% in mammary carcinomas to 94% in sarcomas. However, for therapeutic experiments sufficient growth is necessary. In addition to the take rate, growth rapidity and feasibility of passage were defined for growth behavior of transplants. Only 40-50% of the transplants that took were suitable for further experiments. In addition to tumor type the influence of histological differentiation, clinical stage, origin of tumor tissue (primary or metastasis), and steroid receptor content on the growth of xenotransplants was demonstrated. Poorly differentiated tissue of tumor metastases without steroid hormone receptors grew best on nude mice. Because of the different growth behavior, the nude mouse model is not suited as a pretherapeutic individual test model for every patient in gynecologic oncology. But the nude mouse model is excellent for testing new cytostatics or new therapeutic approaches in human tumor tissue in vivo.


Archives of Gynecology and Obstetrics | 1993

Zur Bedeutung der neuen Stadieneinteilung beim Endometriumkarzinom (FIGO 1988)

E. Giese; W. Kleine; Willi Sauerbrei; Albrecht Pfleiderer

Die kontrollierten Studien der Gynecologic Oncology Group (GOG) haben gezeigt, das die Ausbreitung des Endometriumkarzinoms durch die praoperative Stadienein- tieilung nicht ausreichend erfasst wird (1). Zu den entscheidenden Prognosefaktoren des Endometriumkarzinoms zahlen neben dem histologischen Typ und Differenzie- rungsgradvor allem die Infiltrationstiefe ins Myometrium und die Ausbreitung auserhalb des Uterus. Das operative Vorgehen hat sich deshalb in den letzten Jahren trotz des zum Teil recht hohen Alters der Patientinnen allgemein durchgesetzt, so das seit 1988 auf Empfehlung der FIGO die Stadieneinteilung nicht mehr klinisch (praoperativ) sondern chirurgisch (pathologisch) erfolgen soll. Die Unterteilung im Stadium I richtet sich nicht mehr nach der Sondenlange bei der Abrasio sondern nach der Infiltrationstiefe ins Myometrium. Der wesentliche Unterschied ergibt sich im Stadium III, da jetzt alle primar okkulten Lymphknoten extrauterinen Ausbreitungen im kleinen Becken, den retroperitonealen Lymphknoten und in der Peritonealzytologie zum Stadium III gezahlt werden. Die Bestimmung der exakten Ausbreitung wird mit der Forderung nach einer ausgedehnteren Operation verknupft und fand nicht allgemeine Zustimmung (2). Die vorliegende Untersuchung soll die Unterschiede zwischen klinischem und postoperativem Stadium am Kollektiv einer Klinik dargestellt und die Schwierigkeiten aufzeigen, die sich bei einem Vergleich der Therapieergebnisse zwischen alter und neuer Klassifikation ergeben.


Archives of Gynecology and Obstetrics | 1993

Das Rezidiv beim Endometriumkarzinom

E. Giese; E. Spiegelhalter; Albrecht Pfleiderer; W. Kleine

Das Auftreten eines Rezidivs verschlechtert die Prognose einer Patientin mit dem allgemein eher als gunstig eingeschatzten Endometriumkarzinom erheblich. Das Rezidiv kann entweder aufgrund unzureichender Therapie oder aufgrund besonderer Aggressivitat des Karzinom bei vermeintlich adaquater Therapie entstehen (1). In einer retrospektiven Analyse soll gezeigt werden, welche Parameter des Primatumors die Rezidivhaufigkeit beeinflussen und so den Grad der Malignitat widerspiegeln. Weiterhin soll der Einflus der adjuvanten Strahlentherapie auf die Rezidivhaufigkeit und die Lokalisation analysiert werden.


Archives of Gynecology and Obstetrics | 1989

Zur klinischen Bedeutung prognostischer Faktoren beim Mammakarzinom

E. Giese; W. Kleine; K. Kaufmehl; Albrecht Pfleiderer

In der Universitats-Frauenklinik Freiburg wurden zwischen 1974 und 1986 703 Patientinnen wegen eines Mammakarzinoms primar behandelt.


Archives of Gynecology and Obstetrics | 1981

Alkyl-Lysophospholipide in der experimentellen Therapie gynäkologischer Tumoren

H. M. Runge; Albrecht Pfleiderer; H.G. Meerpohl; W. Kleine; P. G. Munder

(Adriblastin). Die in vitro-Testung zeigt unterschiedliche Sensitivitgtsmuster fiir jede Mammakarzinomzellinie. W/ihrend ADR und Actinomycin bei fast allen Zellinien zu einer starken Proliferationshemmung ftihren, finden sich gr613ere individuelle Unterschiede bei den anderen getesteten Substanzen. Bei Zytostatikakombinationen ist ADR generell nicht wirksamer als bei Einzelapplikation. Bei der CMF-Kombination zeigt sich eine additive Wirkung der Einzelsubstanzen. Demgegeniiber sind Vincristin oder Methotrexat bei den getesteten Ovarialkarzinomzellinien in einigen Ffillen weit wirksamer als ADR.


Cancer Research | 1985

Prognostic Relevance of Ploidy, Proliferation, and Resistance-predictive Tests in Ovarian Carcinoma

Manfred Volm; Astrid Brüggemann; Marianne Günther; W. Kleine; Albrecht Pfleiderer; Marlies Vogt-Schaden


Gynecologic Oncology | 1989

Prognosis of the adenocarcinoma of the cervix uteri: A comparative study

W. Kleine; Karin Rau; Dietmar Schwoeorer; Albrecht Pfleiderer

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Manfred Volm

German Cancer Research Center

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Hans Geyer

University of Freiburg

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Ina Rendl

University of Freiburg

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Karin Rau

University of Freiburg

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