Sökning: "autocrine growth factors"

Visar resultat 1 - 5 av 42 avhandlingar innehållade orden autocrine growth factors.

  1. 1. Growth factors in spermatogenesis

    Författare :Aida Wahlgren; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Testis; seminiferous tubules; proliferation; growth factors; sex steroids;

    Sammanfattning : The aim of this study was to increase the knowledge of die effects of locally produced growth factors and hormones on germ cell proliferation in rat testis in vitro. Since impaired sperm production and function accounts for half the cases of infertility, it is important to understand the physiological actions in germ cell development. LÄS MER

  3. 2. Impact of autocrine factors on physiology and productivity in Trichoplusia ni serum-free cultures

    Författare :Ulrika Eriksson; Lena Häggström; Per Berglund; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Biotechnology; Trichoplusia ni; High Five; insect cells; BEVS; serum-free medium; yeast extract; conditioned medium; autocrine regulation of proliferation; growth factors; cell cycle; metalloproteinase; specific productivity; Bioteknik; Bioengineering; Bioteknik;

    Sammanfattning : The aim of this study was to increase the understanding of the mechanisms regulating cell proliferation and recombinant protein production in serum-free cultures of Trichoplusia ni (T. ni) insect cells.Conditioned medium (CM) was shown to contain both stimulatory and inhibitory factors (CM factors) influencing cell growth. LÄS MER

  4. 3. Autocrine growth stimulation in human bladder cancer

    Författare :Anders Ruck; Nils-Erik Heldin; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Immunology; Immunologi; immunologi; Immunology;

    Sammanfattning : Bladder cancer is one of the most common human cancers which, on a worldwide basis, represents 3-4 % of all malignancies. It is primarily occuring in people over 60 and males are about 2-3 times more likely to develop bladder cancer than are women. LÄS MER

  5. 4. Growth regulation in sarcomas : studies in vivo and in cell culture

    Författare :Avni Abdiu; Linköpings universitet; []
    Nyckelord :MEDICINE; MEDICIN;

    Sammanfattning : Sarcomas are malignant tumors of mesenchymal origin, and can arise in soft-tissue and in bones. It has been suggested that the abnormal growth regulation in sarcoma cells may be due to an autocrine mechanism, in which the cells are stimulated by an endogenous production of growth factors. LÄS MER

  7. 5. A Short Thesis about Growth Factors in Gliomas

    Författare :Göran Hesselager; Eric Holland; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Pathology; glioma; mouse model; PDGF; EGFR; activation; Patologi; Pathology; Patologi; Pathology; patologi;

    Sammanfattning : Glioblastoma multiforme (GBM) is the most common form of primary brain tumor in humans. Its aggressive and infiltrative growth into the brain, and, at best, only partial sensitivity to radiotherapy and chemotherapy, renders it extremely difficult to treat and survival remains dismal. LÄS MER