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Clonal heterogeneity of lymphoid malignancies correlates with poor prognosis.

Suguro M, Yoshida N, Umino A, Kato H, Tagawa H, Nakagawa M, Fukuhara N, Karnan S, Takeuchi I, Hocking TD, Arita K, Karube K, Tsuzuki S, Nakamura S, Kinoshita T, Seto M - Cancer Sci. (2014)

Bottom Line: Clonal heterogeneity in lymphoid malignancies has been recently reported in adult T-cell lymphoma/leukemia, peripheral T-cell lymphoma, not otherwise specified, and mantle cell lymphoma.To determine the presence of clonal heterogeneity, 332 cases were examined using array comparative genomic hybridization analysis.Survival analysis revealed that mantle cell lymphoma and diffuse large B-cell lymphoma with clonal heterogeneity showed significantly poorer prognosis, and that clonal heterogeneity was confirmed as an independent predictor of poor prognosis for both types of lymphoma.

View Article: PubMed Central - PubMed

Affiliation: Division of Molecular Medicine, Aichi Cancer Center Research Institute, Nagoya, Japan.

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Various types of lymphoma cases with or without 8q24.1 gain, 9p21.3 loss and 17p13.1 loss. Cases without clonal heterogeneity (left) are compared with those with clonal heterogeneity (right). Lymphoma types are shown over each box. Red, black and white boxes indicate cases with gain, with loss, and without loss and gain, respectively; the upper, middle and lower lanes of the boxes represent 8p24.1 (MYC locus), 9p21.3 (CDKN2A) and 17p13.1 (TP53), respectively. *P < 0.05 and **P < 0.01 by Fisher's exact test.
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fig03: Various types of lymphoma cases with or without 8q24.1 gain, 9p21.3 loss and 17p13.1 loss. Cases without clonal heterogeneity (left) are compared with those with clonal heterogeneity (right). Lymphoma types are shown over each box. Red, black and white boxes indicate cases with gain, with loss, and without loss and gain, respectively; the upper, middle and lower lanes of the boxes represent 8p24.1 (MYC locus), 9p21.3 (CDKN2A) and 17p13.1 (TP53), respectively. *P < 0.05 and **P < 0.01 by Fisher's exact test.

Mentions: Chromosomal regions and frequencies of CNA were compared between cases with and without clonal heterogeneity (Fig. 2, Fig. S2–7; Table 3). Recurrent CNA among various types of lymphoma with clonal heterogeneity were found to be 8q24.1 (minimal overlapping lesion: MYC) gain, 9p21.3 (CDKN2A/2B) loss and 17p13 (TP53, ATP1B2, SAT2, SHBG) loss. The 8p24.1 (MYC) gain was found in significantly more cases with clonal heterogeneity than in those without clonal heterogeneity in follicular lymphoma and PTCL-NOS. The 9p21.3 loss was found in mantle cell lymphoma, DLBCL and PTCL-NOS. The 17p13 loss was found in mantle cell lymphoma, DLBCL, Burkitt lymphoma and PTCL-NOS (Fig. 3).


Clonal heterogeneity of lymphoid malignancies correlates with poor prognosis.

Suguro M, Yoshida N, Umino A, Kato H, Tagawa H, Nakagawa M, Fukuhara N, Karnan S, Takeuchi I, Hocking TD, Arita K, Karube K, Tsuzuki S, Nakamura S, Kinoshita T, Seto M - Cancer Sci. (2014)

Various types of lymphoma cases with or without 8q24.1 gain, 9p21.3 loss and 17p13.1 loss. Cases without clonal heterogeneity (left) are compared with those with clonal heterogeneity (right). Lymphoma types are shown over each box. Red, black and white boxes indicate cases with gain, with loss, and without loss and gain, respectively; the upper, middle and lower lanes of the boxes represent 8p24.1 (MYC locus), 9p21.3 (CDKN2A) and 17p13.1 (TP53), respectively. *P < 0.05 and **P < 0.01 by Fisher's exact test.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4317909&req=5

fig03: Various types of lymphoma cases with or without 8q24.1 gain, 9p21.3 loss and 17p13.1 loss. Cases without clonal heterogeneity (left) are compared with those with clonal heterogeneity (right). Lymphoma types are shown over each box. Red, black and white boxes indicate cases with gain, with loss, and without loss and gain, respectively; the upper, middle and lower lanes of the boxes represent 8p24.1 (MYC locus), 9p21.3 (CDKN2A) and 17p13.1 (TP53), respectively. *P < 0.05 and **P < 0.01 by Fisher's exact test.
Mentions: Chromosomal regions and frequencies of CNA were compared between cases with and without clonal heterogeneity (Fig. 2, Fig. S2–7; Table 3). Recurrent CNA among various types of lymphoma with clonal heterogeneity were found to be 8q24.1 (minimal overlapping lesion: MYC) gain, 9p21.3 (CDKN2A/2B) loss and 17p13 (TP53, ATP1B2, SAT2, SHBG) loss. The 8p24.1 (MYC) gain was found in significantly more cases with clonal heterogeneity than in those without clonal heterogeneity in follicular lymphoma and PTCL-NOS. The 9p21.3 loss was found in mantle cell lymphoma, DLBCL and PTCL-NOS. The 17p13 loss was found in mantle cell lymphoma, DLBCL, Burkitt lymphoma and PTCL-NOS (Fig. 3).

Bottom Line: Clonal heterogeneity in lymphoid malignancies has been recently reported in adult T-cell lymphoma/leukemia, peripheral T-cell lymphoma, not otherwise specified, and mantle cell lymphoma.To determine the presence of clonal heterogeneity, 332 cases were examined using array comparative genomic hybridization analysis.Survival analysis revealed that mantle cell lymphoma and diffuse large B-cell lymphoma with clonal heterogeneity showed significantly poorer prognosis, and that clonal heterogeneity was confirmed as an independent predictor of poor prognosis for both types of lymphoma.

View Article: PubMed Central - PubMed

Affiliation: Division of Molecular Medicine, Aichi Cancer Center Research Institute, Nagoya, Japan.

Show MeSH
Related in: MedlinePlus