CAG repeat length polymorphism in the androgen receptor gene and breast cancer risk

Data on Indian women and survey from the world

Singh Rajender, Amirtharaj Francis, Singh Pooja, Nallala Krupakar, D. Surekha, Gopal Reddy, D. Raghunatha Rao, Lakshmi Rao, S. Ramachandra, S. Vishnupriya, K. Ramalingam, K. Satyamoorthy, Kumarasamy Thangaraj

    Research output: Contribution to journalArticle

    7 Citations (Scopus)

    Abstract

    We analyzed the length of the CAG repeats of the androgen receptor gene in Indian women with breast cancer, and compared the data with that of other populations across the world in an attempt to find a potential pattern of association. The study was undertaken on 1,408 individuals comprising 747 breast cancer patients and 661 control individuals recruited from three southern states of India: Andhra Pradesh, Tamil Nadu, and Karnataka. The comparison revealed no difference in mean length of the repeat between cases and controls in any of the three groups or in the analysis of pooled data. No significant difference between pre- and post-menopausal cases in any of the three groups or in the analysis of pooled data was observed. Most of the studies to date support either positive association (longer repeats-increased disease risk) or no association, and only 2 out of 20 studies reported negative association (inverse correlation between repeat length and disease risk). Comparison of these data with those from other populations revealed several interesting facts. Particularly notable is that repeat length shows association with breast cancer risk in a population-specific manner with most of the studies on American and Canadian women showing positive association, whereas those on Australian and Israeli women showing no association. Only one study had been conducted on other populations including Asians/South Asians; this restricted us from finding any patterns of association in these populations.

    Original languageEnglish
    Pages (from-to)751-760
    Number of pages10
    JournalBreast Cancer Research and Treatment
    Volume127
    Issue number3
    DOIs
    Publication statusPublished - 06-2011

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    Androgen Receptors
    Breast Neoplasms
    Population
    Genes
    India
    Surveys and Questionnaires

    All Science Journal Classification (ASJC) codes

    • Oncology
    • Cancer Research

    Cite this

    Rajender, Singh ; Francis, Amirtharaj ; Pooja, Singh ; Krupakar, Nallala ; Surekha, D. ; Reddy, Gopal ; Rao, D. Raghunatha ; Rao, Lakshmi ; Ramachandra, S. ; Vishnupriya, S. ; Ramalingam, K. ; Satyamoorthy, K. ; Thangaraj, Kumarasamy. / CAG repeat length polymorphism in the androgen receptor gene and breast cancer risk : Data on Indian women and survey from the world. In: Breast Cancer Research and Treatment. 2011 ; Vol. 127, No. 3. pp. 751-760.
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    title = "CAG repeat length polymorphism in the androgen receptor gene and breast cancer risk: Data on Indian women and survey from the world",
    abstract = "We analyzed the length of the CAG repeats of the androgen receptor gene in Indian women with breast cancer, and compared the data with that of other populations across the world in an attempt to find a potential pattern of association. The study was undertaken on 1,408 individuals comprising 747 breast cancer patients and 661 control individuals recruited from three southern states of India: Andhra Pradesh, Tamil Nadu, and Karnataka. The comparison revealed no difference in mean length of the repeat between cases and controls in any of the three groups or in the analysis of pooled data. No significant difference between pre- and post-menopausal cases in any of the three groups or in the analysis of pooled data was observed. Most of the studies to date support either positive association (longer repeats-increased disease risk) or no association, and only 2 out of 20 studies reported negative association (inverse correlation between repeat length and disease risk). Comparison of these data with those from other populations revealed several interesting facts. Particularly notable is that repeat length shows association with breast cancer risk in a population-specific manner with most of the studies on American and Canadian women showing positive association, whereas those on Australian and Israeli women showing no association. Only one study had been conducted on other populations including Asians/South Asians; this restricted us from finding any patterns of association in these populations.",
    author = "Singh Rajender and Amirtharaj Francis and Singh Pooja and Nallala Krupakar and D. Surekha and Gopal Reddy and Rao, {D. Raghunatha} and Lakshmi Rao and S. Ramachandra and S. Vishnupriya and K. Ramalingam and K. Satyamoorthy and Kumarasamy Thangaraj",
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    Rajender, S, Francis, A, Pooja, S, Krupakar, N, Surekha, D, Reddy, G, Rao, DR, Rao, L, Ramachandra, S, Vishnupriya, S, Ramalingam, K, Satyamoorthy, K & Thangaraj, K 2011, 'CAG repeat length polymorphism in the androgen receptor gene and breast cancer risk: Data on Indian women and survey from the world', Breast Cancer Research and Treatment, vol. 127, no. 3, pp. 751-760. https://doi.org/10.1007/s10549-010-1263-7

    CAG repeat length polymorphism in the androgen receptor gene and breast cancer risk : Data on Indian women and survey from the world. / Rajender, Singh; Francis, Amirtharaj; Pooja, Singh; Krupakar, Nallala; Surekha, D.; Reddy, Gopal; Rao, D. Raghunatha; Rao, Lakshmi; Ramachandra, S.; Vishnupriya, S.; Ramalingam, K.; Satyamoorthy, K.; Thangaraj, Kumarasamy.

    In: Breast Cancer Research and Treatment, Vol. 127, No. 3, 06.2011, p. 751-760.

    Research output: Contribution to journalArticle

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    AU - Rajender, Singh

    AU - Francis, Amirtharaj

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    AU - Krupakar, Nallala

    AU - Surekha, D.

    AU - Reddy, Gopal

    AU - Rao, D. Raghunatha

    AU - Rao, Lakshmi

    AU - Ramachandra, S.

    AU - Vishnupriya, S.

    AU - Ramalingam, K.

    AU - Satyamoorthy, K.

    AU - Thangaraj, Kumarasamy

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