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Clinical and biological significance of angiogenesis and lymphangiogenesis in colorectal cancer
Linköpings universitet, Institutionen för klinisk och experimentell medicin, Onkologi. Linköpings universitet, Hälsouniversitetet.
Linköpings universitet, Institutionen för klinisk och experimentell medicin, Onkologi. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Kirurgi- och onkologicentrum, Onkologiska kliniken US.
Linköpings universitet, Institutionen för klinisk och experimentell medicin, Kirurgi. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Kirurgi- och onkologicentrum, Kirurgiska kliniken i Östergötland med verksamhet i Linköping, Norrköping och Motala.
Linköpings universitet, Institutionen för medicin och hälsa, Hälsa och samhälle. Linköpings universitet, Filosofiska fakulteten.
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2009 (Engelska)Ingår i: DIGESTIVE AND LIVER DISEASE, ISSN 1590-8658, Vol. 41, nr 2, s. 116-122Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Purpose. The aim of this study was to get a deeper understanding into how adults with cerebral palsy (CP) experience physiotherapy and physical activity in a perspective from childhood to adulthood; and how personal and environmental factors influence possibilities for physiotherapy and physical activity. Method. Data was collected through interviews with 22 community-living adults (35-68 years) with CP, from five counties in Sweden. The questions were open-ended and the interviews were taped and transcribed to written language. The material was analysed through qualitative content analysis, a classification process resulting in different themes. Results. The narratives from the 22 informants, based on experiences from childhood to adulthood, resulted in a description of prerequisites for carrying out physiotherapy and physical activity. Five different themes were identified: (i) Being enjoyable, (ii) Giving effects, (iii) Being comprehensible, (iv) Being integrated in daily life, and (v) Supportive healthcare with competent professionals. Conclusion. The information from the interviews elucidates the importance of a lifelong support from healthcare professionals. Physiotherapists with attentiveness to different life situations in combination with good understanding and knowledge in CP could facilitate continuous physical activity in people growing up and ageing with CP.

Ort, förlag, år, upplaga, sidor
2009. Vol. 41, nr 2, s. 116-122
Nyckelord [en]
Angiogenesis, Colorectal cancer, Lymphangiogenesis
Nationell ämneskategori
Medicin och hälsovetenskap
Identifikatorer
URN: urn:nbn:se:liu:diva-16973DOI: 10.1016/j.dld.2008.07.315OAI: oai:DiVA.org:liu-16973DiVA, id: diva2:200869
Anmärkning
Original Publication:Jingfang Gao, Annica Knutsen, G Arbman, John Carstensen, B Franlund and Xiao-Feng Sun, Clinical and biological significance of angiogenesis and lymphangiogenesis in colorectal cancer, 2009, DIGESTIVE AND LIVER DISEASE, (41), 2, 116-122.http://dx.doi.org/10.1016/j.dld.2008.07.315Copyright: Elsevier Science B.V., Amsterdamhttp://www.elsevier.com/Tillgänglig från: 2009-03-24 Skapad: 2009-02-27 Senast uppdaterad: 2011-03-04Bibliografiskt granskad
Ingår i avhandling
1. Molecular and Biological Characteristics of Stroma and Tumor Cells in Colorectal Cancer
Öppna denna publikation i ny flik eller fönster >>Molecular and Biological Characteristics of Stroma and Tumor Cells in Colorectal Cancer
2008 (Engelska)Doktorsavhandling, sammanläggning (Övrigt vetenskapligt)
Abstract [en]

Carcinogenesis is a progressive process involving multiple genetic alterations in tumor cells and complex interactions in the tumor-host microenvironment. To better understand the contribution of molecular alterations in tumor cells and stromal variables to the development of colorectal cancer (CRC) and identify prognostic factors, in this study we examined the clinicopathological and biological significance of stromal variables, including particularly interesting new cysteine-histidine rich protein (PINCH), inflammatory infiltration, angiogenesis and lymphangiogenesis, as well as hRAD50/hMRE11/hNBS1 proteins and hRAD50 mutation in tumor cell in CRC.

PINCH protein expression in the stroma was increased from normal mucosa to primary tumors and further to lymph node metastases. In particular, PINCH expression was most intense at the tumor invasive margin, which was related to low inflammatory infiltration and independently related to an unfavorable prognosis. Low inflammatory infiltration at the tumor invasive margin was related to advanced tumor stage, worse differentiation and microsatellite instability (MSI). Further, it was independently related to an unfavorable prognosis. Increased blood and lymphatic vessel density was observed in the primary tumors compared with the corresponding normal mucosa. However, neither angiogenesis nor lymphangiogenesis was associated with tumor stage and patients’ survival. Moreover, PINCH was present in a proportion of endothelial cells of the tumor vasculature, and PINCH expression in tumor-associated stroma was positively related to blood vessel density.

In primary tumor cells of CRC, strong expression of hRAD50, hMRE11 or hNBS1 was related to microsatellite stability (MSS). A high percentage of hMRE11 expression was associated with less local recurrence and high apoptotic activity. Further, we observed that the expression of hRAD50, hMRE11 or hNBS1 among normal mucosa, primary tumors and metastases in MSS CRC differed from that in MSI CRC. In MSS CRC, the expression intensity of hRAD50, hMRE11 and hNBS1 was consistently increased with respect to normal mucosa, but there was no difference between the primary tumors and metastases. In the primary MSS tumors, the expression of individual or combination of hRAD50/hMRE11/hNBS1 was associated with a favorable prognosis in the same series of the CRCs. Moreover, strong/high hRAD50 in MSS primary tumors was related to earlier tumor stage, better differentiation and high inflammatory infiltration, whereas strong hNBS1 expression tended to be independently related to a favorable prognosis in MSS CRC with earlier tumor stage. However, in MSI CRC, there were neither differences in the expression of hRAD50/hMRE11/hNBS1 among normal mucosa, primary tumors and metastases, nor any association of the protein expressions with clinicopathological variables. On the other hand, frameshift mutations of (A)9 at coding region of hRAD50 were only found in MSI CRC.

Our study indicates that 1) PINCH is likely a regulator of angiogenesis, and PINCH expression at the tumor invasive margin is an independent prognostic indicator in CRC. 2) Inflammatory infiltration at the tumor invasive margin is also an independent prognostic indicator in CRC. The lack of association between high inflammatory infiltration and MSI may help to explain the non-association of MSI with survival in CRC patients. 3) Angiogenesis and lymphangiogenesis occur in the early stage of CRC development, but do not associate with CRC progression and patients’ prognosis. 4) hRAD50/hMRE11/hNBS1 may act dependently and independently, playing different roles in MSS and MSI CRC development. In MSS CRC, the strong expression of the three proteins, associated with a favorable prognosis, may present the cellular response against tumor progression. Expression of hNBS1 may be a prognostic indicator for MSS CRC patients in the earlier tumor stage. In MSI CRC, the frameshift mutations at the coding region of hRAD50 may contribute to tumor development.

Ort, förlag, år, upplaga, sidor
Linköping University Electronic Press, 2008
Serie
Linköping University Medical Dissertations, ISSN 0345-0082 ; 1029
Nyckelord
Carcinogenesis, genetic alterations, colorectal cancer (CRC), cysteine-histidine rich protein (PINCH), Inflammatory infiltration, Angiogenesis, lymphangiogenesis
Nationell ämneskategori
Cancer och onkologi
Identifikatorer
urn:nbn:se:liu:diva-10516 (URN)978-91-85895-51-9 (ISBN)
Disputation
2008-01-25, Eken, Campus US, Linköpings universitet, Linköping, 13:00 (Engelska)
Opponent
Handledare
Tillgänglig från: 2008-01-07 Skapad: 2008-01-07 Senast uppdaterad: 2015-11-19

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OnkologiHälsouniversitetetOnkologiska kliniken USKirurgiKirurgiska kliniken i Östergötland med verksamhet i Linköping, Norrköping och MotalaHälsa och samhälleFilosofiska fakultetenExperimentell patologi
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